Do not leave a patient unattended in the magnet room.
The MRI Stop Scan button must be given to all patients who are not under general anesthesia. Pressing the
button immediately interrupts treatment. Additionally, two Stop Sonication buttons are available on the
Exablate system:
◼ One is on the operator's console.
◼ One is controlled by the staff member in the treatment room.
If the patient is not under general anesthesia, instruct him to press the MRI Stop Scan button when feeling
pain or heat.
The patient will require hearing protection.
The Exablate Prostate console controls the connection between the ultrasound transducer and the rest of
the system. The system power should be turned off before leaving the console to prevent undesired
activation of the transducer.
The Sonication Power-On light in the magnet room indicates that the transducer is applying ultrasound
energy. This light must be in clear view of the nurse and the console operator. Never move the patient or
place your hand near the transducer while the sonication power-on light is on.
The patient is not always in view of the console operator. Be sure that medical personnel are in the magnet
room during the procedure.
Verify that the patient’s fingers and clothing (hospital gowns) do not get caught in the equipment during
positioning or cradle motion.
During treatment, frequently ask the patient if he/she is in any pain or discomfort.
To increase patient comfort and reduce the risk of patient hypothermia, body warmth should be maintained
by accessories or systems provided by the site.
The use of any medication and/or imaging contrast should be applied after considering possible effects on
ultrasound energy absorption or thermal imaging.
The Exablate system creates heat in the target, which may cause thermal ablation based on temperature
rise levels and duration. Such ablation (referred to as thermal dose) will be created by temperature of 43°C
for 240 minutes, by 54°C for 3 seconds, or by 57°C for one second [Sapareto and Dewey]. Carefully examine
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