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CT Registry Review Questions with 100% Verified Correct Answers 2024/2025 Which of the following is a typical protocol for a CT study of the brain for a patient with a history of dizziness? - Correct Answer 2.5-mm × 2.5-mm sections through the posterior fossa, 5 mm × 5 mm to vertex Which of t...

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  • August 18, 2024
  • 25
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • which of the following is a typical protocol for a
  • which of the following describes the scout locali
  • glioma is a general term used to describe a group

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  • CT Registry

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CT Registry Review Questions with 100% Verified
Correct Answers 2024/2025
Which of the following is a typical protocol for a CT study of the brain for a patient with a history of
dizziness? - Correct 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? - Correct Answer lateral



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



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

1. Thalamus

2. Pineal gland

3. Choroid plexus - Correct 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? - Correct 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? - Correct 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. - Correct 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? - Correct Answer Supine, head first



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



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



In which of the following cranial nerves would an acoustic neuroma be found? - Correct 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 - Correct 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: - Correct 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: - Correct
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 - Correct 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 - Correct 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 - Correct 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? - Correct 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

3. Construction of coronal multiplanar reformation (MPR) images from the acquired axial-plane
images - Correct Answer 2. Metallic artifact reduction (MAR) software to improve image quality

3. Construction of coronal multiplanar reformation (MPR) images from the acquired axial-plane
images



Coronal imaging through the paranasal sinuses is typically performed with the plane of imaging: -
Correct Answer D. perpendicular to the hard palate.

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