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Updated: Jul 8, 2026

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Indications for multidetector computed tomographic coronary angiography after catheter-based coronary angiography
Harvey S Hecht1, Vladimir Jelnin, Gary S Roubin
1Lenox Hill Heart and Vascular Institute, 130 E. 77th Street, New York, NY, 10021, USA. hhecht@aol.com
Objectives:
This study was designed to evaluate the indications for performing multidetector computed tomographic coronary angiography (MDCTA) after catheter-based coronary angiography.
Background:
Appropriateness criteria for MDCTA apply exclusively to patient evaluation prior to catheter-based angiography.
Methods:
All MDCTA performed after catheterbased angiography at a tertiary referral center were reviewed.
Results:
Fourteen of a total of 2,000 MDCTAs (0.7%) fulfilled the criteria: 14 were performed after catheter-based angiography. The indications were: 1) inability to selectively cannulate a native vessel or graft; 2) severe pressure damping limiting safe angiography; 3) ostial disease; 4) course of anomalous vessels; 5) relationship of bypass grafts to the sternum; 6) graft morphology; 7) chronic total occlusions. In all cases, the MDCTA enabled definitive treatment.
Conclusions:
In a variety of scenarios, MDCT coronary angiography may provide essential information as an adjunctive tool after catheter-based angiography. Indications for MDCTA should be expanded to accommodate these clinical necessities.
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