Certification Board Of Cardiovascular Computed Tomography

Sample Question 2

Answer to Sample Question 2

Which of the following examinations is generally thought to produce the lowest radiation effective dose (E)?

  1. Coronary CT angiography with field of view focused on the heart, but without ECG dose modulation.
  2. Myocardial perfusion imaging utilizing a dual isotope protocol with 30 mCi Tc99m and 3mCi of Tl201.
  3. Myocardial perfusion imaging utilizing a two day protocol with Tc99m (30mCi for both injections).
  4. Diagnostic invasive coronary angiography via the femoral approach.