ARRT MRI EXAM STUDY GUIDE
COMPLETE ANSWERS 100% CORRECT (LATEST 2024 / 2025 )
1. In theTMJ's, the articular disc lies between what two anatomical structures?: Mandibular
fossa and mandibular condyle
2. The insular cortex is primarily responsible for:: Motor control; cognitivefunction
3. Which cranial nerve is responsible for Bell's Palsy?: Cranial nerve VII (thefacial nerve)
4. To accurately depict the VII and VIII cranial nerves, the patient wouldcentered at the level
of the:: External auditory meatus
5. The dural venous sinuses that drain into the internal jugular vein arethe:: Sigmoid sinus
6. When positioning a patient for a brain MRI, the centering should be placedat what
anatomical landmark?: Nasion
7. If the third ventricle is dilated, but the fourth ventricle is not, there wouldthen be
pathology associated with:: Aqueduct of Sylvius
8. A depression in the base of the skull where the pituitary gland is locatedis called the .:
Sella turcica
9. Which fissure divides the frontal and parietal lobes from the temporallobes?: sylvan
fissure
10. The runs the length of the falx cerebri.: Superiorsagittal
sinus
11. How do the vertebral arteries enter the cranium?: foramen magnum
12. What would be the most useful sequence for evaluation of an acutestroke?: diffusion
weighted
13. When performing an MRI to confirm a suspected pituitary microadenoma,contrast is
injected and imaging is performed:: Rapidly
14. Lesions appear as compared to the enhanced
pituitary gland in contrast MR imaging: low signal intensity
15. When performing MRI to rule out brain tumors, the weighted images ac- quired to
evaluate the extent of lesion involvement, after injection of gadolinium, are:: T1 weighted
16. If a sequence with a matrix of 256 x 512 is adjusted to 512 x 512,: The SNRwill decrease
and the scan time will increase
17. The scan time of a fast spin echo sequence utilizing a TR of 3500ms, a TE of 90ms, a
256x256 matrix, 1NSA, a 220mm FOV and an echo train length of 5is minutes,
approximately.: 3