
12 FUJIFILM Digital Mammography System FDR MS-3500 Operation Manual 897N102525N
For Safe Operation
1
1.5 Precautions in Using FDR MS-3500
1.5.1 Exposure Unit
Minimizing exposure
• Use this equipment only for breasts. If used for other body parts, the patient may be subject to an
unnecessary X-ray dose or be injured.
• Before making an X-ray exposure, check if the patient has breast (mammary) implants. Inform the patient
of risks in an X-ray exposure of the breasts implants. Breast (mammary) implants affect the AEC function
by blocking X-rays or shifting breast tissues. For an exposure of the patient with breast (mammary)
implants, use manual mode. Take great care while compressing the patient’s breasts because the bag(s)
used for implants may break when compressed.
• Stand at the rear of the protective shield (optional) while making X-ray exposures. When making an X-ray
exposure without using the protective shield (optional), install the protective window or take other
measures to protect the room adjacent to the study room.
• If not using the protective shield (optional), wear protective clothing (0.5 mm Pb equivalent) or stay in the
low level radiation area 1.5 m or more away at the rear of the patient back.
• Wear a lm badge or pen dosimeter to monitor exposure doses you receive.
• Make sure that the X-ray radiation eld is appropriate before making an X-ray exposure. Otherwise, a
misdiagnosis or an unnecessary increase in X-ray radiation dose may result.
• Make sure that no body part other than the breast to be exposed is in the radiation field. Adjust the
equipment if necessary so that the radiation eld covers only the breast to be exposed, using the light
eld lamp as a guide. Otherwise, the patient may subject to unnecessary X-ray exposure.
• Specify the correct compression force for an exposure. Otherwise, image quality degrades, resulting in a
misdiagnosis or an unnecessary increase in X-ray radiation dose.
• Before making an X-ray exposure, make sure that the exposure orientation of the patient (right-left CC,
right-left MLO, etc.) is correct both in an actual orientation and in the setting for the exposure menu
selected in the AWS. Otherwise, image quality degrades, resulting in a misdiagnosis or an unnecessary
increase in X-ray radiation dose.
• The damaged equipment should be ensured that the damaged equipment has no adverse effect on X-ray
exposures. Otherwise, a misdiagnosis or an unnecessary increase in X-ray radiation dose may result.
• Never apply a strong impact to the exposure table. Otherwise, a misdiagnosis or an unnecessary
increase in X-ray radiation dose may result.
• Only qualied technologists are allowed to make X-ray exposures.
Preventing accidents
• Keep the exposure table, compression plate or other parts touched by patients or technologists clean. If
the parts are soiled with the blood, etc. of an injured patient, infection may result. Disinfect the soiled
parts immediately with a disinfectant or other cleaning solution.
• Before making an X-ray exposure, make sure that there is no sign of abnormality on the exposure table.
A aked or scratched surface could injure the patient.
• Before using the compression plate, make sure that it is not worn out. If the plate has any crack, replace
it with the new one. Otherwise, the plate may break while it is used and the sharp edges could injure the
patient.
• Before adjusting the compression force on breasts, make sure that no part or all of the patient’s body is
at the risk of hitting the equipment or being caught by the equipment.
• Pay attention to the patient’s behavior to prevent the patient from hanging onto or leaning against the
swivel arm. Otherwise, the patient may be injured or the arm may be deformed.
• Before adjusting the angle or height of the swivel arm, make sure that a part or all of the patient’s body is
not at the risk of hitting the arm or being caught by the part.
• Before rotating the swivel arm, make sure that the patient is away from the exposure stand.
• Check the conditions of the patient (whether she has an implanted pacemaker/defibrillator or breast
implants, etc.) before executing a study.
• When compression of the breast is completed, the foot switch should be moved away from the patient
and technologist. If the foot switch is accidentally operated, it may endanger the patient or technologist.
• During an X-ray exposure, a technologist or doctor should be where the emergency stop button is within
their reach.
• Install the magnication table horizontally. If slanted, the stainless stay will fall down under its own weight
and could cause injury to the patient or technologist.