What is coronary computed tomography angiography (CCTA) image reconstruction?

Updated: Dec 21, 2017
  • Author: Eugene C Lin, MD; Chief Editor: Eugene C Lin, MD  more...
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Answer

Answer

The coronary arteries are optimally imaged when there is the least cardiac motion. This occurs during so-called rest periods, which is typically in middiastole (diastasis). Coronary motion is also minimal during end-systole (isovolumic relaxation), but this is of shorter duration than diastolic diastasis at low heart rates.

A variety of postprocessing techniques are useful in CCTA. [7] Many interpreting physicians will start with the axial source images and then utilize multiplanar reconstructions in at least 2 planes.


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