MRSO EXAM BUNDLE WITH ALL CORRECT SOLUTIONS

Peripheral nerve stimulation can be described by which of the following? a. Faraday's law of induction b. Ohm's law c. Lenz's law d. Planks Law - Answer b. Faraday's law of induction (describes the induction of electrical current in the presence of a changing magnetic field). Lenz's force...

Purpose of RF (B1) field - excite hydrogen protons RF energy is absorbed by tissues - within the volume of the RF transmit coil. This is a thermogenic process. Thermogenic process - Results in production of heat. Ex: RF energy absorption MRI local and whole-body tissue heating is due to - magnet...

Purpose of RF (B1) field - excite hydrogen protons RF energy is absorbed by tissues - within the volume of the RF transmit coil. This is a thermogenic process. Thermogenic process - Results in production of heat. Ex: RF energy absorption MRI local and whole-body tissue heating is due to - magnet...

physical effects of STATIC FIELDS - translation rotation lenz physical effects of TIME-VARYING FIELDS - motion noise induced currents (on object/in person) lenz translation rotation everything NOT MR SAFE needs to be behind... - 5 gauss line earth's magnetic fiels - 0.5 gauss 1.5T = ___ ...

What is the name of the gradient coil used to produce sagittal and coronal images? a. Transverse coil b. Golay coil c. Maxwell coil d. Receiver coil - Answer b. Golay coil ("saddle coil") Which of the following is able to handle the most RF heating? a. elderly b. adult c. obese adult d. n...

Which of the following describe when a non-ferrous object is repulsed by static magnetic field? a. Fourier transformation b. Lenz's force c. Ohm's law d. Larmor equation - Answer b. Lenz's force What is the FDA SAR limit for the whole body in first level controlled operating mode? a. 8 W/kg...

The control room is found where? a. Zone I b. Zone II c. Zone III d. Zone IV - Answer C. Zone III Which of the following describe when a non-ferrous object is repulsed by static magnetic field? a. Fourier transformation b. Lenz's force c. Ohm's law d. Larmor equation - Answer b. Lenz's f...

What pulse sequence will produce the most patient heating? A. Inverse recovery sequence B. Single shot fast spin echo C. Conventional spin echo D. Gradient Echo - Answer B. Single shot fast spin echo During acquisition, it is noticed that the T wave of the cardiac cycle is elevated. What is thi...

MR Safety Officer responsibilities - The role of MRSO is often carried out by the senior Radiographer (in the USA this will generally be an MR technologist), but other suitably trained individuals could also fill this role. Multiple MRSOs could be appointed, provided only one is in charge at a gi...