Esaote O-scan eXP, User Manual

Page: 45 / 242

350004900 Rev. 07 13 / 48
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Instructions for Safe Use
Pre-screening of MR Personnel
The user must make a careful evaluation of the risks associated with the
personal and clinical history of MR personnel, their psychological and
physical conditions and professional tasks assigned before entering the
controlled access area.
The evaluation should identify any contraindications that would preclude
personnel access to the controlled access area and therefore
examinations, and any special precautions that should be taken before
and/or during the examination.
The personnel are subject to the same conditions as regards
contraindications and/or special precautions as specified for the patients
(see paragraph “Pre-screening of patients” in this chapter).
Emergency medical procedure
The User must define and be prepared to implement emergency medical
procedures to assist patients during MR examinations. The procedure
must take into account the presence of magnetic and RF fields and/or
implement a method to quickly remove the patient from the magnetic and
RF field area.
In the event of an emergency the radio frequency impulses and
generation of the magnetic field can be blocked in different ways as
follows.
1 Via software: click with the right mouse button on Output o Scan in
the user interface and select Abort o All in the context menu
displayed: all scans will be interrupted.
2
Turn off the wall-mounted main switch. In this case the system is
completely shut down and therefore the thermal control is also turned
off; to re-activate the system, it is necessary to turn on the mains
switch and the system switch and wait for the magnet to return to its
working temperature.
After performing one of the above procedures, the user should remove the
patient from potential influence of the magnetic field as described in the
procedure in the chapter “Positioning Protocols”, paragraph “Removing
the Patient in an Emergency” in this manual.
N o t e
If the emergency stop procedures requiring deactivation of a switch
are used, the file system may be damaged and data, images or
programs may be lost.