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If the TR in a gradient echo sequence is less than the T2 (or T2*), the resulting condition is
known as:
A. Spin down
B. Steady state
C. Spin dephasement
D. Thermal equilibrium Correct Answ_Steady state
Which type of blood cell is responsible for phagocytosis?
A. Leukocyte
B. Erythrocyte
C. Lymphocyte
D. Platelet Correct Answ_Leukocyte
Which of the following, in an MRA sequence, aids in minimizing the loss of signal due to
dephasing within a voxel:
A. Long TE
,B. Short TR
C. Smaller voxel size
D. Short TE
E. C and D Correct Answ_C and D
In order to acquire an intracranial arterial blood flow sequence, a presaturation pulse would be
applied in which location?
A. Below the heart
B. Anterior to brain
C. Inferior to slice group
D. Superior to slice group Correct Answ_Superior to slice group
Which of the following best describes an EPI sequence?
A. A 180° pulse followed by a 90°/180° combination
B. A 90° pulse followed by a 180° pulse
C. A train of gradient echoes
D. A train of spin echoes Correct Answ_A train of gradient echoes
,In a contrast enhanced MR angiography of the abdominal arteries, the IV gadolinium would
enhance in which order?
A. Superior mesenteric, inferior mesenteric, celiac, renal
B. Inferior mesenteric, superior mesenteric, renal, celiac
C. Celiac, superior mesenteric, inferior mesenteric, renal
D. Celiac, superior mesenteric, renal, inferior mesenteric Correct Answ_Celiac, superior
mesenteric, renal, inferior mesenteric
When imaging the female pelvis, the most optimal view for evaluation of the uterus is the:
A. Axial
B. Coronal
C. Sagittal
D. None of the above Correct Answ_Sagittal
Another term used for "fever" is:
A. Hypothermia
B. Apnea
C. Dystonia
, D. Febrile Correct Answ_Febrile
When parallel imaging techniques are utilized, a low resolution __________ is acquired prior to
the acquisition.
A. Geometric accuracy pulse
B. Calibration scan
C. Presaturation pulse
D. Contrast test bolus Correct Answ_Calibration scan
Reducing the flip angle yields images with what change in image contrast?
A. More T2 information
B. Less T2 information
C. More T1 information
D. Less T1 information
E. None of the above Correct Answ_Less T1 information
An adverse reaction or complication caused by treatment from a healthcare professional is
called: