Noninvasive, accurate morphologic imaging of the coronary arteries is the Holy Grail of emergency medicine, cardiology, and radiology. The coronary arteries are small vessels requiring submillimeter isotropic resolution to resolve distal branches. High temporal resolution is a priori to freeze cardiac motion. Dose-reducing algorithms and low-dose protocols have reduced the coronary CT angiography (CTA) dose to one that is comparable to that of catheter angiography. This article will discuss coronary CTA technique, components of image quality, radiation dosimetry, and exposure.
|Original language||English (US)|
|Number of pages||14|
|Issue number||SUPPL. DEC.|
|State||Published - Dec 1 2007|
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging