What are the respiratory motion artifacts on coronary computed tomography angiography (CCTA)?

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

Answer

Most patients can breath-hold for the time necessary to complete a CCTA study. A Valsalva maneuver should be avoided, as this can decrease inflow into the right atrium and decrease contrast enhancement. [4] Respiratory motion artifact can be recognized on the lung windows and is most prominent on coronal and sagittal images.


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