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ID:31074747
大小:549.00 KB
页数:6页
时间:2019-01-06
《心肌桥的双源ct诊断及临床意义》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、心肌桥的双源CT诊断及临床意义张雪梅王健黎川李丹(第三军医大学附属西南医院放射科,重庆400038)摘要:目的探讨心肌桥(MB)在双源CT冠状动脉血管成像(DSCTCA)中的检出率及形态特征,明确心肌桥与邻近冠状动脉硬化的关系方法对835例常规体检或怀疑冠心病者行双源螺旋CT冠状动脉血管成像,观察MB的检出率、位置、长度及深度,并按MB近远端2cm以内有无冠状动脉硬化将所有MB分为2组,比较两组发病年龄以及MB的长度和深度。结果835例中发现182例(21.8%)共195段MB,其中183段(93.8%)位于左前降支。MB平均长度19.5mm±8.2mm,平均深度1
2、.5mm±0.8mm。所有壁冠状动脉段(MCA)未发现明显粥样硬化癍块,相邻2cm以内冠状动脉段发现动脉硬化癍块75例(38.5%),其中近端66例(33.8%),远端9例(4.6%)。有动脉硬化癍块形成者其发病年龄显著高于无粥样硬化癍块形成者(p<0.05),两组壁冠状动脉的深度及长度无显著差异。结论DSCTCA对MB的检出率较高,且能清楚显示MB的活体形态特征;邻近冠状动脉硬化可能MB长期累积效应所致。关键词:心肌桥;冠状动脉;CT血管成像中图法分类号:文献标识码:AMyocardialbridging:diagnosiswithdual-sourceCTand
3、clinicalsignificanceZHANGXue-mei,WANGJian,LIChuan,LIDan(DepartmentofRadiology,SouthwestHospital,thethirdmilitarymedicaluniversity,Chongqing400038,China)Abstract:ObjectiveTostudytheprevalenceandmorphologicalfeaturesofMBondual-sourcecomputedtomographiccoronaryangiography(DSCTCA),andtodet
4、erminetherelationshipbetweenMBandtheneighboringcoronaryatherosclerosis.MethodsEighthundredandthirty-fiveconsecutivepatientswithsuspectedcoronarydiseaseorforphysicalexaminationwerestudiedwithDSCTCAforthepresenceofmyocardialbridging(MB).Thenumber,length,anddepthofMBwereobservedandevaluat
5、ed.AllcaseswithMBweredividedintotwogroupsaccordingthepresenceorabsenceofatherosclerosisinthecoronaryartery2cmneighboringtotheMB.ThepatientageaswellasthelengthanddepthofMBwerecomparedbetweentwogroups.ResultsOnehundredandninety-fiveMBsegmentswereidentifiedin182of835(21.8%)patients.Of195s
6、egments,182werelocatedinmidleftanteriordescendingcoronaryartery(LAD)(93.8%).ThemeanlengthofMBsegmentswas19.5mm±8.2mm,andthemeandepth1.5mm±0.8mm.Noevidenceofatherosclerosiswasdetectedinthemuralcoronaryartery.Ina2-cm-longsegmentimmediatelyproximalordistaltotheMB,atheroscleroticplaqueswer
7、efoundin75作者简介:张雪梅(1972-),女,重庆市人,汉族,学士学位,主治医师,主要从事心血管疾病影像诊断,发表论文6篇。电话:(023)68765419,E-mail:yuyu20050730@tom.com(38.5%),including66proximalsegments(33.8%)and9distalsegments(4.6%)Thepatientageinthegroupwithatherosclerosiswassignificantlyhigherthaninthegroupwithoutatherosclerosis.Nosign
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