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AII _ Oncology Exam
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Exam of 4 pages for the course ARRT CI Exam Study Guide at ARRT CI Exam Study Guide (AII _ Oncology Exam)
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AII / Oncology ExamAbscess - ANS-Begins with a small pocket of inflammation/infection increasing
permeability of capillaries.
Carrier Free means: - ANS-A radioisotope of an element in its pure form.
Gallium67 is carrier free
Collimator for Gallium67 - ANS-Medium or high
Photopeaked for both 93 and 184 kEvs
Collimator for Indium111 - ANS-Medium or high
Photopeaked for 173 & 247**
Ga67 imaging times: Abdominal Abscess, Inflammation, Tumor - ANS-Abscess = 6hrs
Inflammation = 24hrs
Tumor = 48hrs
Gallium is an iron analog that binds to what? - ANS-Binds to lactoferrin (in leukocytes)
in the bloodstream & transferrin receptors on viable tumor cells
Gallium is for chronic infections and Indium is for... - ANS-Acute infections
Gallium is specific or nonspecific? - ANS-nonspecific
(only highly specific for sarcoidosis when imaging shows BOTH a panda face & lambda
chest signs)
Gallium67 doses (inflammation & tumor/SPECT) - ANS-Inflammation = 5mCi
Tumor/SPECT = 10mCi
Gallium67 energy type and kEVs (4) - ANS-GAMMA
"100, 200, 300, 400"
-93** (primary)
-185
-300
-394 (least)
Gallium67 is preferred for osteomyelitis of: - ANS-spine and sarcoidosis
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