Current and evolving stent evaluation by coronary computed tomographic angiography.
OBJECTIVE
To demonstrate the variety of stent abnormalities that may be evaluated by coronary computed tomographic angiography (CTA).


BACKGROUND
The application of CTA to the evaluation of coronary stents has focused almost entirely on the detection of in-stent restenosis.


METHODS
All CTA performed for stent evaluation at a single institution were reviewed.


RESULTS
In addition to in-stent restenosis, stent fracture, and overlap failure, a multiplicity of stent-related problems not previously addressed by CTA was categorized and illustrated: late stent thrombosis, jailed branches, edge stenosis, bifurcation stents, inadequate stent expansion, stent aneurysms, peri-stent plaque, and stenting into bridged myocardium.


CONCLUSIONS
CTA may be used to evaluate the full range of stent-related problems. This work provides the framework for future studies validating these applications.
Lenox Hill Heart and Vascular Institute, Department of Cardiovascular Medicine, New York, New York, USA. hhecht@aol.com
Harvey S
HS
Hecht
Christopher
C
Gade
D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000295:instrumentation*; D017023:Coronary Angiography / Q000379:methods*; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging / Q000628:therapy*; D023903:Coronary Restenosis / Q000000981:diagnostic imaging* / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009519:New York City; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D011475:Prosthesis Failure; D015607:Stents; D013927:Thrombosis / Q000000981:diagnostic imaging* / Q000209:etiology; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome