摘要
Abstract
Objective To compare the diagnostic value of 256 - slice spiral CT with that of transcatheter coronary angiography ( CAG ) in diagnosing myocardial bridge and mural coronary artery ( MB - MCA ).Methods Imaging data of 267 patients receiving 256 - slice spiral CTA or CAG were analyzed regressively.The presence of MB - MCA was judged, and its lengths and degrees of stenosis evaluated.Results CTA found 124 MB - MCA segments in 120 patients, including 56 segments of deep - in MB - MCA, 68 segments of superficial MB - MCA.CAG found 117 MB - MCA segments in 108 patients, including 56 segments of deep - in MB - MCA, 61 segments of superficial MB - MCA.Their kappa consistency was good.The lengths of deep - in MB - MCA detected by CTA or CAG were ( 10.83 ± 5.30 ) mm, ( 9.03 ± 4.21 ) mm, respectively, the difference was significant ( P < 0.05 ); The coronary stenosis degrees by CTA or CAG were (51 ±11 )% , ( 52 ± 10 )% , respectively, the difference was not significant ( P > 0.05 ).The lengths of superficial MB - MCA detected by CTA or CAG were ( 7.58 ± 2.12 ) mm, ( 4.54 ± 2.08 ) mm, respectively, the difference was significant ( P < 0.01 ); The coronary stenosis degrees by CTA or CAG were ( 28 ± 10 )% , ( 32.3 ± 11)% , respectively, the difference was not significant ( P > 0.05 ).Conclusion 256 - slice spiral CTA, one of the preferred methods for MB - MCA diagnosis, has good consistency with transcatheter CAG in diagnosis of MB - MCA.关键词
心肌桥/心血管造影术/体层摄影术,螺旋计算机Key words
Myocardial bridging/ Angiocardiography/ Tomography, spiral computed分类
医药卫生
