ARRT MRI EXAM STUDY GUIDE

ARRT MRI EXAM STUDY GUIDE

COMPLETE ANSWERS 100% CORRECT (LATEST 2024 / 2025 )

• In the TMJ's, the articular disc lies between what two anatomical structures?: Mandibular

fossa and mandibular condyle

• The insular cortex is primarily responsible for:: Motor control; cognitive function
• Which cranial nerve is responsible for Bell's Palsy?: Cranial nerve VII (the facial nerve)
• To accurately depict the VII and VIII cranial nerves, the patient would centered at the level

of the:: External auditory meatus

• The dural venous sinuses that drain into the internal jugular vein are the:: Sigmoid sinus
• When positioning a patient for a brain MRI, the centering should be placed at what

anatomical landmark?: Nasion

• If the third ventricle is dilated, but the fourth ventricle is not, there would then be

pathology associated with:: Aqueduct of Sylvius

• A depression in the base of the skull where the pituitary gland is located is called the .:

Sella turcica

• Which fissure divides the frontal and parietal lobes from the temporal lobes?: sylvan

fissure

10. The runs the length of the falx cerebri.: Superior sagittal

sinus

11. How do the vertebral arteries enter the cranium?: foramen magnum

• What would be the most useful sequence for evaluation of an acute stroke?: diffusion

weighted

• When performing an MRI to confirm a suspected pituitary microadenoma, contrast is

injected and imaging is performed:: Rapidly

• Lesions appear as compared to the enhanced

pituitary gland in contrast MR imaging: low signal intensity

• 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

• If a sequence with a matrix of 256 x 512 is adjusted to 512 x 512,: The SNR will decrease

and the scan time will increase

• 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 5 is minutes,

approximately.: 3

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