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Cardiac CT angiography after coronary artery surgery in children using 64-slice CT scan.

Abstract：

OBJECTIVE:The purpose of this study was to compare the diagnostic accuracy of 64-slice CT with that of invasive angiography in the detection of graft and/or coronary angioplasty stenosis in children who had undergone coronary artery surgery. POPULATION AND METHODS:Fifteen consecutive children (8 male and 7 female; age 9.2+/-6.1 years) underwent 64-slice CT because of chest pain or ECG changes mean 4.8+/-3.7 years after surgical coronary artery surgery; 10 patients had coronary angioplasty using a patch from the saphenous vein, four had mammary artery bypass, and one had saphenous vein bypass. Six main segments of the coronary arteries and all the bypass graft considered as a single segment were analyzed and compared with invasive angiography used as the reference standard. RESULTS:CT correctly identified the four children with coronary angioplasty and mammary graft lesions that were confirmed by conventional angiography: one patient had a significant stenosis (>50% stenosis) at the mammary bypass graft anastomosis site; three other had non-significant stenosis (<50% stenosis) including a mild lesion of the saphenous vein patch in two patients and a mild lesion at the anastomosis site of the mammary bypass in one. All segments identified as normal by CT in the other 11 children were also found to be normal by conventional angiography. CONCLUSION:In centers expert in this technique, 64-slice CT scanning is a promising, rapid, and useful diagnostic technique for evaluating both coronary angioplasty and bypass graft lesions in children who had undergone coronary artery surgery.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Marini D,Agnoletti G,Brunelle F,Sidi D,Bonnet D,Ou P

doi

10.1016/j.ejrad.2008.06.008

subject

Has Abstract

pub_date

2009-09-01 00:00:00

pages

492-7

issue

3

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(08)00336-7

journal_volume

71

pub_type

临床试验,杂志文章

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