Impairment factors for evaluating the patency of drug-eluting stents and bare metal stents in coronary arteries by 64-slice computed tomography versus conventional coronary angiography

International Journal of Cardiology
Koki NakamuraIssei Komuro

Abstract

To identify, using logistic regression models, factors impairing evaluation of patency of drug-eluting stents (DES) and bare metal stents (BMS) in coronary arteries by 64-slice MSCT versus conventional coronary angiography (CAG). We evaluated 75 stents (16 DES and 59 BMS; 57 in males) implanted in 49 consecutive subjects (35 males; aged 68+/-10 years) by enhanced ECG-gated MSCT (Light Speed VCT, General Electrics) and CAG. Stents were classified by implantation site: (1) right coronary artery, (2) left anterior descending branch (LAD), and (3) left circumflex branch. Logistic regression models were used to predict agreement of findings between CT and CAG and impossibility of evaluating stent patency by CT, using age, sex, body mass index (BMI), heart rate, stent type, stent size, diabetes mellitus, and hypertension. By CAG, patency was confirmed in 15 DES (94%) and 54 BMS (91%); significant in-stent restenosis of >/=50% was observed in 1 DES (6%) and 4 BMS (7%), and total occlusion in 1 BMS (2%). By CT, patency was confirmed in 69% DES and 78% BMS; 5 BMS (8%) revealed a low CT area inside the stent with significant in-stent restenosis, and 2 BMS (3%) revealed total occlusion. Patency of 31% DES and 22% BMS was unconfirmed by CT...Continue Reading

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Citations

Sep 22, 2012·ISRN Cardiology·Andreas H Mahnken
Jul 19, 2014·Legal Medicine·Klára TörőAgnes Nemeskéri
Sep 4, 2015·The International Journal of Cardiovascular Imaging·James K MinKen O'Day
Feb 27, 2010·The American Journal of Cardiology·Daniele AndreiniAntonio Luca Bartorelli
Jun 23, 2009·The American Journal of Cardiology·Dharam J KumbhaniMilind Y Desai
Mar 11, 2009·Journal of Cardiovascular Computed Tomography·Gilbert L RaffUNKNOWN Society of Cardiovascular Computed Tomography
Dec 6, 2008·European Journal of Radiology·Zhonghua Sun, Abdulrahman Marzouq D Almutairi

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