Term
| Give an example of an agent used to provide negative contrast enhancement. |
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Definition
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Term
| Give an example of an agent used to provide positive contrast enhancement. |
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Definition
Barium
Water soluble salts
Oil soluble agents |
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Term
| What type of imaging is best used for identifying vessels and other hollow viscera? |
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Definition
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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 |
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Definition
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Term
| Which imaging device uses pulsed radiofrequency beams in the presence of high magnetic fields? |
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Definition
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Term
| What is the difference in the signal intensity an MRI receives? |
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Definition
| Hydrogen density & Magnetic relaxation times (return time from tissues) |
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