QUESTIONS AND CORRECT ANSWERS
C. Acoustic Neuroma - CORRECT ANSWER When scanning Internal Auditory Canals
(Temporal Bones) what indication requires IV contrast?
A. Cholesteatoma
B. Mastoiditis
C. Acoustic Neuroma
D. Ear Infections
B. Pituitary - CORRECT ANSWER What gland lies within the sella of the sphenoid bone and
is usually imaged with IV contrast?
A. Clinoid
B. Pituitary
C. Thymus
D. Medulla
A. Optic Nerve - CORRECT ANSWER The axial images on an orbit CT scan best visualize the
lateral rectus muscles and what?
A. Optic Nerve
B. Mastoid air cells
C. Auricle
D. Orbital Roof
C. Prone - CORRECT ANSWER In order to better visualize air-fluid levels within the sinuses,
the patient should be scanned in what position?
A. Supine
B. Feet First
C. Prone
D. Head First
, A. Helical/1.25mm slices/coronals/axials - CORRECT ANSWER A patient presents to the ER
with severe facial trauma. Which criteria below is the best possible Maxiofacial CT protocol?
A. Helical/1.25mm slices/coronals/axials
B. Prone/5mm slices/coronals
C. Supine/1.25mm slices/axials
D. Prone/2mm slices/standard algorithm
D. Cellulits - CORRECT ANSWER What indication recommends that IV contrast be
administered during orbital CT scan?
A. Trauma
B. Grave's Disease
C. Foreign Body
D. Cellulitis
A. Routine Brain - CORRECT ANSWER What head CT protocol is usually always scanned
serial/conventional rather than helical for fine detail and the best images quality possible?
A. Routine brain
B. CTA brain
C. Orbits
D. Maxillofacial
B. CTA COW - CORRECT ANSWER What CT head exam's quality is strictly dependent on
matching the time windows for contrast enhancement and starting the scan?
A. Pituitary
B. CTA COW
C. IAC's
D. TMJ's
D. Supraobital Meatal Line - CORRECT ANSWER To help reduce radiation exposure to the
lens of the eyes it is recommended to program the CT slices of a routine brain CT parallel to what?
A. Orbital Meatal Line
B. Zygomatic Arch