Philips CARDIOMD User manual

CARDIOMD
SERVICE MANUAL
1MAN0158-H11
04-2005
CSIP Level 1

Copyright
ii CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
PROPRIETARY NOTICE
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Medical Systems (“Philips”) and may not be reproduced, copied in whole or in part, adapted, modified,
disclosed to others, or disseminated without the prior written permission of the Philips Legal Department.
Use of this document and the information contained in it is strictly reserved for current Philips personnel
and Philips customers who have a current and valid license from Philips for use by the customer’s
designated in-house service employee on equipment located at the customer’s designated site. Use of this
document by unauthorized persons is strictly prohibited. Report violation of these requirements to the
Philips Legal Department. This document must be returned to Philips when the user is no longer licensed
and in any event upon Philips’ first written request.
COPYRIGHT NOTICE
© April 2005 Koninklijke Philips Electronics N.V. All Rights Reserved.
WARRANTY DISCLAIMER
Philips provides this document without warranty of any kind, either implied or expressed, including, but not
limited to, the implied warranties of merchantability and fitness for a particular purpose.
LIMITATIONS OF LIABILITY
Philips has taken care to ensure the accuracy of this document. However, Philips assumes no liability for
errors or omissions and reserves the right to make changes without further notice to any products herein to
improve reliability, function, or design. Philips may make improvements or changes in the product(s) or
program(s) described in this document at any time.

Table of Contents
1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual iii
TABLE OF CONTENTS
1Safety.......................................................................................................................................1-1
1.1 Safety Concerns ...............................................................................................................1-2
2.1 Introduction......................................................................................................................1-2
3.1 Safe Operating Practices ..................................................................................................1-2
1.3.1 Operator Safety ...................................................................................................1-2
1.3.2 Equipment Safety ................................................................................................ 1-2
1.3.3 IEC Symbols Used ..............................................................................................1-2
1.3.4 Definitions...........................................................................................................1-3
1.3.5 Restrictions On Use.............................................................................................1-3
1.3.6 Hazards................................................................................................................1-4
1.3.7 Emergency Stop ..................................................................................................1-5
2System Overview....................................................................................................................2-1
2.1 Introduction......................................................................................................................2-2
2.2 System Components.........................................................................................................2-2
2.2.1 Gantry..................................................................................................................2-2
2.2.2 Detectors .............................................................................................................2-7
2.2.3 Collimator ...........................................................................................................2-7
2.2.4 Hand Controller...................................................................................................2-8
2.2.5 Acquisition PC ....................................................................................................2-8
3Detailed Description ..............................................................................................................3-1
3.1 Introduction......................................................................................................................3-2
3.2 Gantry...............................................................................................................................3-2
3.2.1 AC Power Supply................................................................................................3-6
3.2.2 Safety Board........................................................................................................3-8
3.2.3 Motion Controllers ............................................................................................3-10
3.2.4 Motor Amplifiers ..............................................................................................3-16
3.2.5 Connections, Series III Systems........................................................................3-16
3.2.6 Connections, Series I and II systems.................................................................3-20
3.2.7 Hand Controller.................................................................................................3-21
3.2.8 Safety Circuit ....................................................................................................3-22
3.3 Detectors ........................................................................................................................3-24
3.3.1 General ..............................................................................................................3-24
3.3.2 Automatic PMT Gain Control – Autotune........................................................3-24
3.3.3 Dynamic Linearity Correction – DynCor..........................................................3-24
3.3.4 Detector Layout – Outside ................................................................................3-26
3.3.5 Detector/Collimator ID Boards .........................................................................3-27
3.3.6 Analog Boards...................................................................................................3-28
3.4 Acquisition PC ...............................................................................................................3-31
3.4.1 Tower Acquisition PC.......................................................................................3-31

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iv CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
3.4.2 Laptop Acquisition PC......................................................................................3-32
3.4.3 PC Connections.................................................................................................3-32
4Calibration..............................................................................................................................4-1
4.1 Introduction......................................................................................................................4-3
4.2 Detector Calibration.........................................................................................................4-3
4.2.1 Detector Calibrations Overview..........................................................................4-3
4.2.2 Checks Prior to Calibrations ...............................................................................4-5
4.2.3 High Voltage (HV) and PMT Calibration (PMT)...............................................4-8
4.2.4 Energy Calibration (ECal).................................................................................4-14
4.2.5 Geometry Calibration (GeoCal)........................................................................4-17
4.2.6 Energy Correction Calibration (ECor) ..............................................................4-20
4.2.7 Spatial Linearity Correction Calibration (LinCor)............................................4-22
4.2.8 Uniformity Calibration (UnifCor).....................................................................4-25
4.2.9 Center of Rotation (COR) Calibration ..............................................................4-30
4.3 Detector Performance Tests ...........................................................................................4-33
4.3.1 Center of Rotation (COR) Analysis ..................................................................4-33
4.3.2 Flood Uniformity Test.......................................................................................4-33
4.4 Motion Calibration.........................................................................................................4-34
4.4.1 Introduction.......................................................................................................4-34
4.4.2 Calibration of Absolute Encoders .....................................................................4-34
4.4.3 Calibration of Y Ultimate End Stop..................................................................4-36
4.4.4 Calibration of Rotation Ultimate End Stop .......................................................4-36
4.4.5 Calibration of X Ultimate End Stop..................................................................4-36
4.5 Motion Limit Checks .....................................................................................................4-39
4.5.1 Introduction.......................................................................................................4-39
4.5.2 Verifying Absolute Encoder Calibration...........................................................4-39
4.5.3 Verifying Operation within Software Limits ....................................................4-40
4.5.4 Verifying Ultimate Limit Switches...................................................................4-41
5Diagnostics..............................................................................................................................5-1
5.1 Introduction......................................................................................................................5-3
5.2 External LED Indicators ..................................................................................................5-3
5.3 Internal LED Indicators....................................................................................................5-5
5.3.1 LED’s on the Safety Board .................................................................................5-6
5.3.2 LED’s on the Detector Power Supply.................................................................5-8
5.3.3 LED’s on the Detector EDC Boards ...................................................................5-8
5.3.4 LED’s on the Motion Controllers........................................................................5-9
5.4 Test Terminals................................................................................................................5-14
5.4.1 Gantry................................................................................................................5-14
5.4.2 Detector.............................................................................................................5-16
5.5 False Collisions..............................................................................................................5-19
5.5.1 Locating the Cause of a False Collision............................................................5-19
5.6 Diagnostic Software Utilities .........................................................................................5-25
5.6.1 Motion Controller Diagnostics..........................................................................5-25
5.6.2 EDC Module Diagnostics..................................................................................5-34

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5.6.3 FireViewer.........................................................................................................5-40
5.6.4 Acquisition PC Error Logs................................................................................5-41
5.6.5 Determining the Cause of a Runaway Condition..............................................5-42
5.7 Importing and Exporting Study Files.............................................................................5-44
5.7.1 Exporting Study Files to a Folder .....................................................................5-44
5.7.2 Importing Study Files from a Folder.................................................................5-47
5.8 Setting Up FTP and Telnet.............................................................................................5-50
5.8.1 Windows 2000 ..................................................................................................5-50
5.8.2 Windows XP .....................................................................................................5-55
5.9 Remote Log On..............................................................................................................5-57
5.9.1 FTP Logon ........................................................................................................5-57
5.9.2 Telnet Logon .....................................................................................................5-57
5.10 Detector Calibration Files ..............................................................................................5-58
6Repair Procedures .................................................................................................................6-1
6.1 Introduction......................................................................................................................6-2
6.2 Gantry Repairs .................................................................................................................6-2
6.2.1 General ................................................................................................................6-2
6.2.2 Tools....................................................................................................................6-2
6.2.3 Removing Series III Base Cover.........................................................................6-3
6.2.4 Replacing Absolute Encoder...............................................................................6-3
6.2.5 Replacing Cables in Conduits .............................................................................6-3
6.2.6 Replacing a Motion Controller............................................................................6-4
6.2.7 Replacing the Power Supply ...............................................................................6-5
6.3 Detector Repairs...............................................................................................................6-6
6.3.1 General ................................................................................................................6-6
6.3.2 Tools....................................................................................................................6-6
6.3.3 Removing and Remounting the Detector Cover .................................................6-6
6.3.4 Replacing Detector Power Supply and EDC Board............................................6-7
6.3.5 Replacing PMT’s.................................................................................................6-8
6.3.6 Replacing the Crystal ........................................................................................6-10
6.3.7 Replacing the Collimator ID Cable...................................................................6-12
6.3.8 Aligning Collision Sensors on the Detector Cover ...........................................6-12
7Software Update Procedures ................................................................................................ 7-1
7.1 Introduction......................................................................................................................7-2
7.2 Gantry Software Updates .................................................................................................7-2
7.2.1 Closing Down Acquisition Software...................................................................7-2
7.2.2 Determining which COM Port to Use.................................................................7-2
7.2.3 Upgrading EDC Firmware ..................................................................................7-3
7.2.4 Collimator ID Programming .............................................................................7-12
7.2.5 Upgrading Motion Controller Firmware...........................................................7-14
7.3 Acquisition PC Software Updates..................................................................................7-18
7.3.1 Upgrading CardioMD Acquisition Software ....................................................7-18
7.3.2 Performing a Complete Installation of the CardioMD Acquisition Software...7-19
7.3.3 Configuring Antivirus Software........................................................................7-22

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vi CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
7.4 Checking Installed Software Versions...........................................................................7-24
8Installation..............................................................................................................................8-1
8.1 Installation Requirements.................................................................................................8-3
8.1.1 Introduction.........................................................................................................8-3
8.1.2 Ideal Floor Space Allocation...............................................................................8-3
8.1.3 Minimum Floor Space Allocation.......................................................................8-3
8.1.4 Ceiling Height ...................................................................................................8-11
8.1.5 Ancillary Services .............................................................................................8-11
8.1.6 Miscellaneous....................................................................................................8-11
8.1.7 Environment......................................................................................................8-12
8.1.8 Safety.................................................................................................................8-12
8.2 Shipping, Handling, Installation and Storage.................................................................8-13
8.2.1 Shipping Containers and Weights.....................................................................8-13
8.2.2 Passageway Clearances.....................................................................................8-13
8.2.3 Equipment Storage ............................................................................................ 8-15
8.2.4 Power Requirements .........................................................................................8-16
8.2.5 Environmental Specifications ...........................................................................8-17
8.2.6 Networking and Cables .....................................................................................8-17
8.2.7 CardioMD Floor Levelness...............................................................................8-19
8.3 Installation......................................................................................................................8-21
8.3.1 Installation Overview ........................................................................................8-21
8.3.2 Tools..................................................................................................................8-23
8.3.3 Installation Procedure........................................................................................8-24
8.3.4 Software Setup ..................................................................................................8-75
8.4 Final System Calibration and Performance Testing.......................................................8-87
8.4.1 Checking Status LED’s .....................................................................................8-87
8.4.2 E-Stop Function ................................................................................................8-88
8.4.3 Detector Calibration ..........................................................................................8-88
9Spare Parts .............................................................................................................................9-1
9.1 Spare Parts Listing ...........................................................................................................9-2
9.1.1 Detector...............................................................................................................9-2
9.1.2 Collimators..........................................................................................................9-3
9.1.3 Gantry..................................................................................................................9-3
9.1.4 Tower Acquisition PC.........................................................................................9-5
9.1.5 Laptop Acquisition PC........................................................................................9-5
9.1.6 Accessories and Options .....................................................................................9-5
9.1.7 Covers .................................................................................................................9-6
9.1.8 Service Tools and Spares to Service Tools .........................................................9-7
9.2 Location of Spare Parts....................................................................................................9-8
9.2.1 Detector...............................................................................................................9-8
9.2.2 Collimators........................................................................................................9-13
9.2.3 Gantry................................................................................................................9-14
9.2.4 Acquisition PC ..................................................................................................9-23
9.2.5 Accessories........................................................................................................9-27
9.2.6 Covers ...............................................................................................................9-28
9.2.7 Service Tools.....................................................................................................9-30

Table of Contents
1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual vii
9.3 Installation Procedures...................................................................................................9-36
9.3.1 Collimators........................................................................................................9-36
10 NEMA Performance Measurement....................................................................................10-1
10.1 Introduction....................................................................................................................10-2
10.2 NEMA Energy Resolution .............................................................................................10-4
10.2.1 Test Requirements.............................................................................................10-4
10.2.2 Test Procedure...................................................................................................10-4
10.3 NEMA Uniformity.........................................................................................................10-7
10.3.1 Test Requirements.............................................................................................10-7
10.3.2 Test Procedure...................................................................................................10-7
10.4 NEMA Spatial Resolution and Linearity .......................................................................10-9
10.4.1 Test Requirements.............................................................................................10-9
10.4.2 Test Procedure...................................................................................................10-9
10.5 NEMA Multiple Window Spatial Registration (MWSR)............................................10-12
10.5.1 Test Requirements...........................................................................................10-12
10.5.2 Test Procedure.................................................................................................10-12
11 Planned Maintenance ..........................................................................................................11-1
11.1 Introduction....................................................................................................................11-2
11.2 Planned Maintenance Schedule......................................................................................11-2
11.3 Planned Maintenance Procedures ..................................................................................11-3
11.3.1 Inspection Check List from the Operator’s Manual.........................................11-3
11.3.2 Inspection of Image Quality..............................................................................11-3
11.3.3 Check of Motion Limits....................................................................................11-3
11.3.4 Lubrication ........................................................................................................11-4
11.3.5 Deleting Old Log Files......................................................................................11-5
12 CardioMD AC Option ......................................................................................................... 12-1
12.1 Introduction....................................................................................................................12-3
12.2 Overview........................................................................................................................12-3
12.2.1 AC Option Bracket............................................................................................12-4
12.2.2 Line Source Compartment ................................................................................12-4
12.2.3 Line Source Housing with Shutter and Attenuator ...........................................12-6
12.3 Detailed Description ......................................................................................................12-8
12.3.1 AC Option Block Diagram................................................................................12-8
12.3.2 Overview of Modifications ...............................................................................12-8
12.3.3 AC Option Bracket..........................................................................................12-12
12.3.4 Line Source Compartment ..............................................................................12-16
12.3.5 CardioMD Detector and Table Console..........................................................12-26
12.4 Calibration....................................................................................................................12-27
12.4.1 Point Source Holder ........................................................................................12-27
12.5 Repair Procedures ........................................................................................................12-29
12.5.1 Dismounting Transmission Scanners ..............................................................12-29
12.5.2 AC Option Bracket Repairs.............................................................................12-34

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viii CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
12.5.3 Line Source Compartment Repairs .................................................................12-38
12.6 Installation....................................................................................................................12-88
12.6.1 Preparing for the Installation...........................................................................12-88
12.6.2 Electrical Installation.......................................................................................12-91
12.6.3 Mechanical Installation ...................................................................................12-99
12.6.4 Software Installation .....................................................................................12-105
12.6.5 Getting Ready to Use the CardioMD AC Option..........................................12-109
12.7 AC Option Spare Parts...............................................................................................12-109
12.7.1 Spare Parts Listing ........................................................................................12-109
12.7.2 Location of Spare Parts .................................................................................12-111
12.7.3 AC Option Accessories .................................................................................12-115
12.8 Planned Maintenance .................................................................................................12-116
12.8.1 Lubrication ....................................................................................................12-116

Introduction
1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual ix
INTRODUCTION
This Service Manual for the CardioMD Dual Detector camera provides a detailed description of
the camera, enabling trained service personnel to install, update, trouble-shoot and repair the
CardioMD system.
This manual describes Series III CardioMD systems (the most recent version of the system), as
well as earlier systems (Series I and II). If in doubt, check the serial number label on the rear of
the system’s gantry to see the version of the system.
Information that applies only to CardioMD Series I and II systems is marked with this symbol.
Information that applies only to CardioMD Series III systems is marked with this symbol.
The manual comprises the following sections:
Chapter 1 covers safety concerns that must be taken into consideration when operating the
CardioMD system.
Chapter 2 gives a short overview of the CardioMD system.
Chapter 3 gives a more detailed description of the different components comprising CardioMD.
Chapter 4 details how to calibrate both the motion axes and the CardioMD detectors.
Chapter 5 gives guidance to diagnosing CardioMD in case of faults.
Chapter 6 specifies repair procedures.
Chapter 7 gives guidance on software firmware updating and programming.
Chapter 8 includes information for installing CardioMD at customer sites.
Chapter 9 holds a list of field replaceable units.
Chapter 10 details how to measure NEMA performance on the CardioMD system.
Chapter 11 specifies requirements for planned maintenance on CardioMD.
Chapter 12 describes the CardioMD AC Option in detail and provides instructions for installation,
repairs and updates of the AC Option.
I, II
III

Introduction
x CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1

1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual 1-1
1SAFETY
Contents
1.1 Safety Concerns ....................................................................................................................1-2
2.1 Introduction...........................................................................................................................1-2
3.1 Safe Operating Practices .......................................................................................................1-2
1.3.1 Operator Safety.........................................................................................................1-2
1.3.2 Equipment Safety .....................................................................................................1-2
1.3.3 IEC Symbols Used ...................................................................................................1-2
1.3.4 Definitions................................................................................................................1-3
1.3.5 Restrictions On Use..................................................................................................1-3
1.3.6 Hazards.....................................................................................................................1-4
1.3.7 Emergency Stop .......................................................................................................1-5

Safety Concerns
1-2 CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
1.1 Safety Concerns
This chapter contains important information concerning potential hazards and general safety
precautions. The meaning of the safety instructions is to draw attention to potential hazards that
will or may occur if instructions are ignored. These hazards may lead to accidents or serious injury
to the patient, operator or service personal.
2.1 Introduction
The CardioMD System incorporates many safety features to protect the patient and the operator.
However, as with all medical devices of this nature, safe use of the system relies on the knowledge
and judgment of medical professionals.
3.1 Safe Operating Practices
1.3.1 Operator Safety
Do not attempt to operate the system until you fully understand the safety considerations and
procedures presented in this manual.
To avoid the possibility of getting pinched, keep hands and arms clear of the detector head during
positioning and operation.
1.3.2 Equipment Safety
Do not attempt to operate the system if any of the Emergency Stop buttons described in this
manual are not functioning properly.
High voltage and mechanical hazards may be encountered when covers are removed.
Always inspect the system for hazardous conditions or equipment malfunction prior to operation.
Watch out for abnormal or inconsistent camera control operation, such as intermittent pushbutton
operation or interlock switch failure.
Always make sure that collimators are installed securely.
Confirm that the movement paths of the detectors are clear before performing SPECT
acquisitions, manually moving the detectors or initiating preprogrammed setups.
1.3.3 IEC Symbols Used
The following symbols are used on the system and in this manual:
Alternating current
WARNING. Indicates where not following the procedure exactly as
described may be dangerous and possibly cause bodily injury or death.
Please consult accompanying documents for detailed instructions before
proceeding.
RADIATION. Indicates where not following the procedure exactly as
described may lead to exposure to radiation and possibly cause bodily injury
or death. Please consult accompanying documents for detailed instructions
before proceeding
CAUTION
RADIOACTIVE
MATERIAL

Safety
1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual 1-3
Denotes a hazardous voltage. Indicates where not following the procedure
exactly as described may be dangerous and possibly cause bodily injury or
death.
Denotes protective earth point.
ON / Power.
OFF / Power.
Type B equipment.
1.3.4 Definitions
The safety instructions in this manual are intended for the protection of the patient, operator and
service personnel. They identify hazards that will or may occur if instructions are ignored and are
used as follows:
WARNING
Identifies conditions and actions for which a specific hazard is known to exist
which may cause severe personal injury or substantial property damage if the
instructions are ignored.
Caution. Identifies conditions or actions for which a potential hazard may
exist which will or can cause minor personal injury or property damage if the
instructions are ignored.
Note. A note is used to inform the user of operator information which is
important but not hazard-related.
This symbol indicates information and instructions applying to CardioMD
Series III systems.
This symbol indicates information and instructions applying to earlier versions
of the CardioMD system.
1.3.5 Restrictions On Use
Caution. This equipment is intended for use by trained qualified personnel
only.
Caution. Using controls or adjustments or performing procedures other than
those specified in this manual may result in severe personal injury or
equipment damage.
CAUTION
CAUTION
CAUTION
III
I, II

Safe Operating Practices
1-4 CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
1.3.6 Hazards
Electrical Hazards
WARNING
•The CardioMD system is provided with covers to protect the patient and
operator from electrical shock and mechanical hazards. Make sure that all
covers are properly mounted when returning the system to the customer.
•Only power the acquisition computer from the power supply located in the
gantry base.
•Do not use any other type of mains cable or interconnecting power cables
than those shipped with the system.
Mechanical Hazards
WARNING
•Equipment motion can cause severe injury and equipment damage.
Precautions
To avoid injury or equipment damage:
•Carefully observe all equipment motion as you operate the controls. Uncontrolled or
unmonitored movements can cause the gantry, table or detectors to collide with personnel or
other equipment.
•Check for obstructions before initiating any hand controlled motions such as moving the
detectors. Be careful not to drive the detectors into fixed objects.
•Make sure that no body parts are at risk to become pinched or trapped when the equipment is
moving.
•Do not lean anything against the equipment. Doing so could cause it to tip or fall and may
result in injury or equipment damage.
WARNING
Do not attempt to operate the gantry without collimators secured to the
detectors.

Safety
1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual 1-5
1.3.7 Emergency Stop
Pressing the Emergency Stop button located on the side of the gantry or the one located next to the
acquisition PC will stop and disable all motion.
Figure 1.1 Emergency Stop buttons
Note. The appearance of your system may be slightly different from the systems shown in the photographs of this
manual. However, there is no difference in functionality
Note. E-stop buttons latch mechanically when pressed. To release an E-stop button, turn the
button in the clockwise direction.
Pressing an Emergency Stop button causes the current acquisition to stop. Any acquisition motion,
for example tomography, will cease.
When the Emergency Stop button is released (and power to the rest of the system has not been
interrupted), you can enable hand controlled motion by pressing the hand controller Collision
Override Button once. An interrupted acquisition remains stopped until you instruct the system to
resume or restart the acquisition.
Emergency Stop

Safe Operating Practices
1-6 CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1

1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual 2-1
2SYSTEM OVERVIEW
Contents
2.1 Introduction...........................................................................................................................2-2
2.2 System Components..............................................................................................................2-2
2.2.1 Gantry.......................................................................................................................2-2
2.2.1.1 Motions........................................................................................................2-3
2.2.1.2 Covers..........................................................................................................2-3
2.2.1.3 Patient Table................................................................................................2-5
2.2.1.4 Control System ............................................................................................2-5
2.2.1.5 Power Supply...............................................................................................2-6
2.2.1.6 Emergency Stop Buttons .............................................................................2-6
2.2.1.7 Collision Sensing System............................................................................2-6
2.2.2 Detectors...................................................................................................................2-7
2.2.3 Collimator.................................................................................................................2-7
2.2.4 Hand Controller........................................................................................................2-8
2.2.5 Acquisition PC .........................................................................................................2-8

Introduction
2-2 CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
2.1 Introduction
CardioMD is a nuclear medicine gamma camera system intended for cardiac imaging. A dedicated
acquisition PC executes all acquisition protocols.
Acquisition data from the PC can be sent via DICOM to a workstation for further processing.
For use with the CardioMD system, Philips Medical Systems offer a choice of two processing
stations:
•The Pegasys Ultra™ workstation
•The JETStream® Workspace Cardiology Module.
For further information on these, please refer to the relevant workstation documentation
DICOM (Digital Imaging and Communications in Medicine) is a NEMA standard that defines a
means of exchanging image files and other information between DICOM compliant devices.
DICOM provides image network file transfer capabilities between the CardioMD acquisition PC
and the workstation.
Note. DICOM data transfer between the CardioMD and any workstation other than those
specified above is not a valid configuration and is not supported.
2.2 System Components
The system architecture is illustrated in the schematic block diagram below.
Table
Longitudinal
drive
Detector
Vertical
drive
Detector
Horizontal
drive
Table Pallet
Detector 2
Detector 1
Detector
Rotate
Drive
Motion
Control
Gantry
Interface
AC
Mains
Handset
IEEE 1394
Firewire
Power
Supply
Acq. PC
Power IEEE 1394 Firewire
CANbus
Collimator
Collimator
Safety Module
Gantry
E
Stop
Collision Sensor
Collision Sensor
Sense
Sense
EKG
Acquisition
Station
Handset
Network
Figure 2.1 CardioMD system components
2.2.1 Gantry
The gantry forms the basis of the CardioMD gamma camera. All external devices are connected to
the gantry from where the signals are distributed to the various system components. The gantry
contains most of the system’s electronics, such as power supplies, motors and motion controllers.

System Overview
1MAN0158-H11 04-2005 CSIP Level 1 CardioMD Service Manual 2-3
The main gantry structure consists of a steel structure with a moveable base onto which a pillar
with the detectors is mounted. Next to the pillar base, the patient table is mounted onto a second
steel construction, the table console, which houses the majority of the CardioMD electronics.
2.2.1.1 Motions
The gantry can perform motorized motions driving the detectors horizontally towards and away
from the patient table. The drive performing these motions is referred to as the X drive and is
located in the gantry base behind the pillar holding the detectors. The X motion is controlled by
the connected acquisition PC or the hand controller.
A second drive, the Y drive, is located in the top of the pillar. This drive is used to move the
detectors up and down as controlled from the acquisition PC or hand controller.
The rotate drive is located in the arm connecting the detectors to the pillar. This drive is used to
rotate the detector assembly, under the control of the acquisition PC or hand controller.
The patient table can be moved horizontally along its longitudinal axis. This motion is effected by
the table drive located underneath the table pallet. The table longitudinal motion is used for patient
positioning and is controlled from the hand controller.
2.2.1.2 Covers
The covers of Series III CardioMD systems are slightly different from those of earlier systems, as
shown in Figure 2.2 and Figure 2.3.
The steel gantry construction has four main covers. Removal of these gives access to all gantry
electronics and drives.
•At the rear of the base behind the Y axis pillar (‘the tower’), a cover protects the X drive.
•The tower has a top cover and a side cover protecting the Y drive.
•The console supporting the patient table has a front and a rear cover. Removal of these covers
gives access to the gantry electronics. The table drive is located behind the rear cover.
•The detector arm with the rotate drive has a top and a bottom cover.

System Components
2-4 CardioMD Service Manual 1MAN0158-H11 04-2005 CSIP Level 1
Figure 2.2 CardioMD Series III covers
Tower top cover
X drive cover
Tower side cover
Rotate gear cover
Gantry base cover Detector side cover
Detector 1
Detector 2
Detector side cover
Detector top cover
Table console
front cover
Table console
rear cover
X drive
slide cover
III