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Questions and Answers
What is the primary purpose of gated radionuclide angiography (RNA)?
What is the primary purpose of gated radionuclide angiography (RNA)?
- To evaluate liver function
- To measure left ventricular ejection fraction and evaluate left ventricular regional wall motion (correct)
- To visualize coronary arteries
- To diagnose cardiac valve diseases
What is required to label the blood for RNA?
What is required to label the blood for RNA?
- 123I-labeled serum proteins
- 18F-labeled platelets
- 99mTc-labeled red blood cells (correct)
- 99mTc-labeled white blood cells
How many frames are typically used in a gated acquisition?
How many frames are typically used in a gated acquisition?
- 24-30 frames
- 32-40 frames
- 8-10 frames
- 16-20 frames (correct)
What resets the gate during a gated acquisition?
What resets the gate during a gated acquisition?
How long does the scanning process typically take?
How long does the scanning process typically take?
How is the pediatric dose of 99mTc-Iabeled red blood cells adjusted?
How is the pediatric dose of 99mTc-Iabeled red blood cells adjusted?
What is the principle of thallium-201 myocardial perfusion study?
What is the principle of thallium-201 myocardial perfusion study?
What is the approximate percentage of the injected dose of 201-TI that is taken up by the myocardium at rest?
What is the approximate percentage of the injected dose of 201-TI that is taken up by the myocardium at rest?
What is the purpose of a first-pass flow study with 99mTc sestamibi?
What is the purpose of a first-pass flow study with 99mTc sestamibi?
Why is 99mTc sestamibi used in place of 201-TI in obese patients?
Why is 99mTc sestamibi used in place of 201-TI in obese patients?
What is the minimum dose recommended for pediatric patients for a 201-TI study?
What is the minimum dose recommended for pediatric patients for a 201-TI study?
What is the adult dose for a stress study with 201-TI?
What is the adult dose for a stress study with 201-TI?
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