【摘要】 目的:探讨心肌桥-壁冠状动脉(myocardial bridge and mural coronary artery,MB-MCA)邻近血管折曲成角改变与壁冠状动脉长度、深度的关系,以及MB-MCA形态学与临床的相关性。方法:回顾性分析93例行64层螺旋CT冠状动脉CTA检查发现MB-MCA的患者(部分病例同时行冠状动脉血管造影检查),测量壁冠状动脉的长度、深度,分析其与邻近血管折曲成角改变的关系及与临床的相关性。结果:MB-MCA邻近段常有折曲成角改变62.2%(61/98),其与壁冠状动脉的深度无相关性,与壁冠状动脉的长度呈负相关(P<0.01);单纯性心肌桥症状的有无与壁冠状动脉的深度、长度、邻近段折曲改变均无相关性。结论:MB-MCA邻近段的折曲成角改变对长度较短的壁冠状动脉的存在有提示作用,此特点有利于64层螺旋CT提高对MB-MCA的诊断准确性。更多还原

【Abstract】 Purpose:To study the relevancy between tortuousness of vessels proximal or distal to myocardial bridge and mural coronary artery (MB-MCA) and the length,depth of MCA.And to evaluate the clinical relevancy of morphology of MB-MCA.Methods:Ninety-three patients with MB-MCA were evalated retrospectively by 64-slice CT(part of cases underwent coronary angiography). The length and depth of MB-MCA were measured and its relationship with tortuousness of proximal or distal vessels and clinical relevancy was studied.Results:The proximal or distal vessels to MB-MCA showed tortuousness in 62.2% cases (61/98). It was not relevant with the depth of MCA and negative relevant with the length of MCA (P<0.01). The clinical symptoms were not relevant with either the length and depth of MCA or tortuousness of proximal or distal vessels in patients with isolated MB. Conclusion:The tortuousness of proximal or distal vessels may indicate the presence of short MCA. Hence,the recognition of it may improve the diagnostic accuracy of MB-MCA by 64-slice CT.更多还原