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CT REGISTRY REVIEW QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

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  • CT REGISTRY
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  • CT REGISTRY

CT REGISTRY REVIEW QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

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  • August 18, 2024
  • 27
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CT REGISTRY
  • CT REGISTRY
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CT REGISTRY REVIEW QUESTIONS
AND ANSWERS WITH SOLUTIONS 2024
Which of the following is a typical protocol for a CT study of the brain for a patient with a history of
dizziness? - ANSWER 2.5-mm × 2.5-mm sections through the posterior fossa, 5 mm × 5 mm to vertex



Which of the following describes the scout (localizer) projection used to prescribe an axial CT acquisition
of the brain? - ANSWER lateral



Glioma is a general term used to describe a group of primary tumors. Consisting of malignant glial cells,
gliomas occur in the: - ANSWER brain



Which of the following areas of the head commonly becomes calcified?

1. Thalamus

2. Pineal gland

3. Choroid plexus - ANSWER Pineal gland and the choroid plexus



Following the injection of intravenous contrast media during a CT examination of the brain, which of the
following anatomic areas does not enhance? - ANSWER Posterior horn of lateral ventricle



Which of the following conditions or indications would not require the injection of iodinated contrast
material for proper visualization during a CT examination of the brain? - ANSWER S/P MVA 3 days ago;
R/O subdural hematoma



Which of the following statements regarding the pituitary gland is false?

A. It is sometimes referred to as the hypophysis cerebri.



B. It is seated within the sella turcica.



C. The infundibulum attaches it to the hypothalamus.

,D. It is responsible for the production of epinephrine. - ANSWER It is responsible for the production of
epinephrine. --The pituitary gland is responsible for the production of several hormones, including
somatotropin and prolactin. It is the adrenal glands that play a role in the production and secretion of
epinephrine (adrenaline).



Which of the following correctly describes the patient position relative to the gantry for a CT study of the
brain? - ANSWER Supine, head first



Cerebrospinal fluid (CSF) is produced in the: - ANSWER choroid plexuses.



A stereotactic unit would be used for which of the following specialized CT examinations? - ANSWER C.
CT-guided biopsy of the brain



In which of the following cranial nerves would an acoustic neuroma be found? - ANSWER Eighth



Which of the following types of pathologic conditions cannot be easily diagnosed from a CT scan of the
brain?

A. Astrocytoma



B. Traumatic hemorrhage



C. Cerebral infarct



D. Alzheimer's disease - ANSWER D. Alzheimer's disease



In an effort to reduce radiation exposure to the orbits during a CT examination of the brain, the gantry
may be angled: - ANSWER C. 15 degrees superior to the infraorbital-meatal line (IOML).



The abnormal accumulation of cerebrospinal fluid on the ventricles of the brain is called: - ANSWER D.
hydrocephalus.

, Unless the use of iodinated contrast media is contraindicated, which of the following pathologic
conditions require(s) the administration of such media for optimal visualization on CT examination?

1. Suspected neoplasm

2. Arteriovenous malformation (AVM)

3. Acute hemorrhage - ANSWER 1. Suspected neoplasm

2. Arteriovenous malformation (AVM)



High-resolution CT examinations of the temporal bones and internal auditory canal should include which
of the following technical parameters?

1. 5- to 7-mm section width

2. Small (less than 10 cm) targeted DFOV

3. Soft-tissue kernel - ANSWER 2. Small (less than 10 cm) targeted DFOV



Which of the following technical parameters is NOT a necessary component of a high-resolution CT
examination of the internal auditory canals (IAC)?

A. 1-mm section width



B. Targeted 10-cm DFOV



C. Sagittal MIP images



D. Bone algorithm - ANSWER C. Sagittal MIP images



Multiplanar reformation (MPR) images along the long axis of the optic nerve would be best described by
which of the following anatomic planes? - ANSWER C. Oblique sagittal



Which of the following may be used to reduce metal streak artifact on coronal-plane CT images of the
orbits?

1. Retrospective reconstruction of targeted images with reduced display field of view (DFOV)

2. Metallic artifact reduction (MAR) software to improve image quality

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