UMEM Educational Pearls

Category: Vascular

Title: ECG gating CTs for Aortic Dissection Rule Out

Keywords: ECG, Aortic Dissection (PubMed Search)

Posted: 12/4/2007 by Rob Rogers, MD (Updated: 7/10/2020)
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ECG gating CTs for aortic dissection/aneurysm rule out

  • Increasing evidence supports the use of ECG gating when performing CTs to rule out aortic pathology-dissection and aneurysm.
  • The most common artifact on CT is a "psuedo-dissection" flap caused by excessive motion at the aortic root. Administering beta blockers before CT will limit this motion and decrease the chance of this false positive.

AJR 2007