ALL IN ONE PACKAGE DEAL FOR MRSO EXAMS WITH COMPLETE SOLUTIONS

1. The quench vent in the MR room should be inspected by who? a. facility engineers b. manufacturer engineers c. MR tech d. MRMD {Correct answer} b. manufacturer engineers 2. The quench vent outside the MR facility is inspected by who? a. facility engineers b. manufacture engineer c. MR tech...

1. 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 anwer b. Lenz's force 2. What is the FDA SAR limit for the whole body in first level controlled operating mode? a. 8 W...

1. Static field metrics 1T = 10,000G (0.5mT = 5G) 2. Who published guide- lines titled "Criteria for Significant Risk" that specifies what qualifies as significant risk of ex- posure to magnetic field associated with MRI. FDA 3. FDA guidelines state EX- POSURE to a static field that does not p...

1. Which of the following are physiologic factors that occur from an anaphy- lactic reaction? Select all that apply a. Elevated creatinine levels b. Vasodilation c. Bronchial smooth muscle contraction d. Increased vascular permeability correct ans b, c, d 2. A non-emergent quench can take approx...

MAGNETIC RESONANCE SAFETY OFFICER (MRSO) - RADIO FREQUENCY - MODULE 4 1. Purpose of RF (B1) field: excite hydrogen protons 2. RF energy is absorbed by tissues: within the volume of the RF transmit coil. This is a thermogenic process. 3. Thermogenic process: Results in production of heat. Ex: RF e...

1. 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 suit- ably trained individuals could also fill this role. Multiple MRSOs could be appointed, provided only one is in charge at a ...

1. The control room is found where? a. Zone I b. Zone II c. Zone III d. Zone IV: C. Zone III 2. 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: b. Lenz's force 3. W...

1. 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 {correct answer} b. Golay coil ("saddle coil") 2. Which of the following is able to handle the most RF heating? a. elderly b. adult c. obe...

1. All MR medical directors must report incidents to which of the following? a. FDA Medwatch Program b. ACR MR safety board c. None of the choices d. All of the choices {Correct selected answer} a. FDA Medwatch Program 2. Which of the following is not true? a. Screening process for non-MR pers...

1. 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 {Correct answer} b. Faraday's law of induction (describes the induction of electrical current in the presence of a changing magnetic field). Len...

1. How do magnetic flux lines travel? A. North to South B. South to North C. East to West D. West to East: { correct answer }A North to South 2. Which of the following can be potential safety concerns to a patient in the static magnetic field? A. Electrically conductive materials B. Ferrous o...

1. 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: Correct answer B. Single shot fast spin echo 2. During acquisition, it is noticed that the T wave of the cardiac cycle is elevated....

1. Zero Boil-Off: System that reduces/eliminates the need to recharge Helium in a magnet. 2. Quench: Quickly eliminating the magnetic field. Not immediate, takes 3 to 5 minutes to completely eliminate magnetic field. Loud Noise as Helium rushes out of Quench Vent. Can cause crack in the wire (ver...