CAMRT MRI EXAM COMPLETE 250
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CAMRT MRI EXAM
QUESTION: The 3-year-old son of a co-worker has a recent MR exam for an injury. The co-
worker, who is a nurse, would like to know the results. She asks the MR technologist to show
them the images on PACS. What should the MR technologist do?
a) discretely show the images to the co-worker in a private location
b) discretely read the radiologist's report to the co-worker in a private location
c) suggest the co-worker contact the referring physician for the results
d) give the co-worker their login information, allow the co-worker to view the images
themselves - ANSWER-c) suggest the co-worker contact the referring physician for the results
The physician is responsible for communicating patient results.
QUESTION: What should the MR technologist do to correct the artifact of toes wrapping to the
heel of a foot in a sag image of the foot while maintaining the spatial resolution?
a) decrease bandwidth
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b) place spatial pre-saturation pulse anterior to FOV
c) increase the FOV
d) change the phase direction - ANSWER-b) place spatial pre-saturation pulse anterior to FOV
This will maintain the resolution and correct for the aliasing artifact. Increasing the FOV will
decrease the spatial resolution.
QUESTION: What is the typical appearance of hemangiomas in the liver on post-contrast T1W
imaging?
a) peripheral enhancement of the lesion on the arterial phase imaging with contrast filling on
delayed imaging
b) immediate contrast filling of the lesion on arterial phase imaging with variable contrast filling
on delayed imaging
c) immediate contrast filling of the lesion on arterial phase imaging with contrast washout on
delayed imaging
d) peripheral enhancement of the lesion on arterial phase imaging with contrast washout on
delayed imaging. - ANSWER-a) peripheral enhancement of the lesion on the arterial phase
imaging with contrast filling on delayed imaging.
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Hemangiomas appear as peripherally enhancing lesions on early post-contrast T1W images with
increasing signal over 15-30 minutes post-contrast
QUESTION: The MR technologist prepares an outpatient for a TOF MRA of the brain to visualize
the circle of Willis. There is no signal appearing from any of the arteries on the images. What is
the most likely cause of this?
a) The patient has blockages in the neck wessels restricting arterial flow to the brain
b) a saturation band is located inferior to the slice stack
c) a saturation band is located superior to the slice stack
d) the patient has Takayasu's arteritis - ANSWER-b) a saturation band is located inferior to the
slice stack
The arterial flow is being saturated, rather than the venous flow.
QUESTION: A patient with a history of Hills-Sachs deformity arrives for a scan. What would be
the superior and inferior borders for slice prescription?
a) from the deltoid insertion to the glenoid fossa
b) from the acromio-clavicular joint to the glenoid fossa
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c) from the superior border of the olecranon process to the radial tuberocity
d) from the deltoid tuberosity to the radial fossa - ANSWER-b) from the acromio-clavicular joint
to the glenoid fossa
This coverage will include the entire rotator cuff muscles of the shoulder
QUESTION: A 1-year-old patient is having an MRI examination of their brain. The radiologist has
requested a T1W sequence to assess signal differences in grey matter and white matter. What
should the MR technologist use for optimal demonstration?
a) TR 6000 ms, TE 60 ms, TI 150 ms
b) TR 3000ms, TE 15 ms, TI 600ms
c) TR 400 ms, TE 10 ms
d) TR 8000ms, TE 60ms, TI 1800 ms - ANSWER-b) TR 3000ms, TE 15 ms, TI 600ms
This is a T1W IR. In very young patients grey and white matter have similar T1 relaxation times,
and their CNR is small on T1 SE sequences. These differences are better demonstrated on a
T1W IR
An 89 yr old patient arrives to the MRI department for a routine knee scan. They complete the
screening form indicating that they have never had any type of surgery. While helping the
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