CAJ | 학술논문

目的：观察64排螺旋CT对心肌桥显示情况，分析心肌桥与冠状动脉粥样硬化的相关性。方法选择2011年2月至2013年6月间我院心内科存在心肌桥患者99例为研究对象，均接受64排螺旋CT冠状动脉成像检查。对心肌桥进行定位、计数、长度/厚度测量，观察相应冠状动脉发生动脉硬化情况。结果64排螺旋CT共检查心肌桥109处，其中LAD中段比例最高(63.3%)，心肌桥平均长度(17.4±2.5) mm，厚度(2.5±0.8) mm。桥前段冠状动脉硬化(87.3%)比较显著高于桥后段(12.7%)，差异具有统计学意义(χ2=79.1，P<0.05)。完全型心肌桥发生冠状动脉硬化(80.3%)显著高于不完全型心肌桥(45.8%)，差异具有统计学意义(χ2=14.0，P<0.05)。发生冠状动脉硬化者心肌桥长度为(17.6±2.6) mm，与未发生冠状动脉硬化者的(17.1±2.2) mm比较，差异无统计学意义(t=1.8，P>0.05)。结论64排螺旋CT可以清晰显示心肌桥，以LAD中段最常见；冠状动脉硬化与心肌桥存在关联性。
목적：관찰64배라선CT대심기교현시정황，분석심기교여관상동맥죽양경화적상관성。방법선택2011년2월지2013년6월간아원심내과존재심기교환자99례위연구대상，균접수64배라선CT관상동맥성상검사。대심기교진행정위、계수、장도/후도측량，관찰상응관상동맥발생동맥경화정황。결과64배라선CT공검사심기교109처，기중LAD중단비례최고(63.3%)，심기교평균장도(17.4±2.5) mm，후도(2.5±0.8) mm。교전단관상동맥경화(87.3%)비교현저고우교후단(12.7%)，차이구유통계학의의(χ2=79.1，P<0.05)。완전형심기교발생관상동맥경화(80.3%)현저고우불완전형심기교(45.8%)，차이구유통계학의의(χ2=14.0，P<0.05)。발생관상동맥경화자심기교장도위(17.6±2.6) mm，여미발생관상동맥경화자적(17.1±2.2) mm비교，차이무통계학의의(t=1.8，P>0.05)。결론64배라선CT가이청석현시심기교，이LAD중단최상견；관상동맥경화여심기교존재관련성。
Objective To investigate the value of 64 slice spiral CT in myocardial bridge (MB), and analyze the correlation between myocardial bridge and coronary atherosclerosis. Methods Ninety-nine patients with MB were chosen as research objects, which received 64 slice spiral CT coronary artery imaging. The localization, count, length and thickness of MB were measured, and the corresponding coronary artery atherosclerosis was analyzed. Results 64 slice spiral CT examination showed 109 MBs, in which LAD accounted for the highest proportion (63.3%) with an average length of (17.4±2.5) mm and thickness of (2.5±0.8) mm. The occurrence rate of coronary atherosclerosis proximal to MB was significantly higher than that of coronary atherosclerosis distal to MB (87.3%vs 12.7%,χ2=79.1, P<0.05). The occurrence of coronary atherosclerosis in complete MB was significantly higher than that in incomplete MB (80.3%vs 45.8%,χ2=14.0, P<0.05). The length of MB in patients with coronary arteriosclerosis was not statistically significantly different from that in patients without coronary arteriosclerosis [(17.6 ± 2.6) mm vs (17.1 ± 2.2) mm, t=1.8, P<0.05]. Conclusion 64 slice spiral CT could show MB clearly, in which LAD was the most common. There was a close relationship between coronary atherosclerosis and MB.