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Radiographic Anatomy
RUSM Semester 1
6
Anatomy
Graduate
05/12/2012

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Cards

Term
Give an example of an agent used to provide negative contrast enhancement.
Definition
Air, CO2
Term
Give an example of an agent used to provide positive contrast enhancement.
Definition
Barium
Water soluble salts
Oil soluble agents
Term
What type of imaging is best used for identifying vessels and other hollow viscera?
Definition
CT scan
Term
Which of the following structures will apear black on a CT scan?

A. Muscle
B. Bone
C. Airfilled lung
D. Clotted blood
E. Brain Tissue
Definition
C. Airfilled lung
Term
Which imaging device uses pulsed radiofrequency beams in the presence of high magnetic fields?
Definition
MRI
Term
What is the difference in the signal intensity an MRI receives?
Definition
Hydrogen density & Magnetic relaxation times (return time from tissues)
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