What is CCTA and when is it reasonable for patients with known SIHD?
CTCA is a Computed Tomography Coronary Angiography, and it is reasonable for patients with known SIHD who have new or worsening symptoms not consistent with Unstable Angina (UA), irrespective of their ability to exercise, in the absence of known moderate or severe calcification and intent to assess coronary stent $3 mm in diameter.