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7 Cards in this Set
- Front
- Back
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What isotopes are used in SPECT?
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-Technetium 99m
-incorporates into a wide range of radiopharmaceuticals -Thallium 201 -Behaves like K+ |
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What do ECT images give a picture of?
How? |
Organ function, not strict anatomy
By detecting gamma rays emitted from radioactive atoms. |
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What are PET scans effective in diagnosing?
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Cancers and what stage they are in.
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USG
How are the images produced? What are the determining factors? |
Based on acoustic impedance
Reflection, absorption or scattering |
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Give an equation explaining acousic impedance.
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I=v*d
v=velocity of sound propagation in a given tissue d=density of tissue |
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USG
How are penetration depth and frequency related? |
The higher frequency, the lower the penetration.
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How shoud one not sterilize imaging transducers?
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Heating them, because they will lose their ability if heated above the Curie temperature.
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