Cautions - Rf Coil - QED Shape Coil Operator's Manual

Patients with an inability to maintain reliable communications (for example, young
children) are at increased risk of burn injury because they may not be able to notify the
operator of heat or pain due to excessive heating and tissue damage.
Patients with loss of feeling in any body part are at increased risk of burn injury because
they may not be able to notify the operator of heat or pain due to excessive heating and
tissue damage.
Patients who have difficulty regulating their body temperature or who are particularly
sensitive to increases in body temperature (for example, patients with fever, cardiac
failure, or impaired perspiration) are at increased risk of burn injury or their body
temperature may increase.
Ensure that the patient does not wear clothing that is wet or dampened by perspiration.
The presence of moisture increases the risk of burn injury.
3.5 Cautions – RF Coil
Do not place any disconnected devices (RF coils, cables, etc.) in the gantry during
scanning. Remove unneeded RF coils from the couchtop and confirm that RF coils in use
are connected to the connector port before scanning.
Disconnected RF coils present during scanning can cause a high-frequency induction
current loop to form, resulting in burn injury to the patient. In addition, devices may be
damaged.
Connect only the designated RF coils to the RF coil connection port.
Do not use a defective RF coil, especially if the outer covering has been damaged or if
metal parts are exposed. There is a risk of electric shock.
Do not attempt to change or modify the coil.
Unauthorized modifications could result in
burn injury, electric shock, or decreased
image quality.
Do not cross or loop coil cables. A high-
frequency current may form and burns may occur.
Ensure that the patient does not come into direct contact with the coil cables. Burn
injuries may result due to the electric field that is generated in the RF coil when a high-
frequency magnetic field is transmitted.
Do not allow the patient to form a loop with any body parts. Use pads to ensure that
the patient's hands and legs do not touch the coil, MRI system, patient table, or another
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