Arrt Mri Mock Registry Already Passed

A major advantage of a 2D time of flight over a 3D time of flight sequence is the ability to: A. Determine the precise, accurate percentage of stenosis B. Better image retrograde flow C. Complete image acquisition in twice the time D. Image larger areas without saturation of flowing blood {Ans: Image larger areas without saturation of flowing blood}In order to generate thin slices, a ___________ is used. I. Steep slice selection gradient II. High amplitude slice select gradient III. Low amplitude slice select gradient IV. Narrow transmit bandwidth (tBW) V. Wide transmit bandwidth (tBW) VI. Narrow receiver bandwidth (rBW) {Ans: I. Steep slice selection gradient II. High amplitude slice select gradient IV. Narrow transmit bandwidth (tBW)}Which of the following parameter adjustments reduce the overall SNR in an MR image? I. Decrease TR II.Reduce Phase Matrix III. Reduce Pixel Size IV. Decrease FOV V. Reduce rBW VI. Increase rBW VII. Increase NEX VIII. Decrease NEX IX. Increase ETL X. Decrease ETL {Ans: I, III, IV, VI, VIII and IX}Which of the following is NOT affected by changing the slice thickness? A. The image resolution B. The signal-to-noise ratio C. The anatomical coverage D. The T2 contrast