[1]张雪梅,王健,黎川,等.心肌桥的双源CT诊断及临床意义[J].第三军医大学学报,2008,30(20):1897-1899.
 ZHANG Xue-mei,WANG Jian,LI Chuan,et al.Myocardial bridge: diagnosis with dual-source CT and clinical significance[J].J Third Mil Med Univ,2008,30(20):1897-1899.
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心肌桥的双源CT诊断及临床意义(/HTML )
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《第三军医大学学报》[ISSN:1000-5404/CN:51-1095/R]

卷:
30卷
期数:
2008年第20期
页码:
1897-1899
栏目:
论著
出版日期:
2008-10-30

文章信息/Info

Title:
Myocardial bridge: diagnosis with dual-source CT and clinical significance
作者:
张雪梅王健黎川李丹
第三军医大学西南医院放射科
Author(s):
ZHANG Xue-mei WANG Jian LI Chuan LI Dan
Department of Radiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
关键词:
心肌桥冠状动脉CT血管成像
Keywords:
myocardial bridge coronary artery CT angiography
分类号:
R541.1;R814.42;R814.43
文献标志码:
A
摘要:
目的    探讨心肌桥(myocardial bridge, MB)在双源CT冠状动脉血管成像(dual-source CT coronary angiography, 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2 cm以内有无冠状动脉硬化将所有MB分为2组,比较2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(19.5±8.2)mm,平均深度(1.5±0.8)mm。所有壁冠状动脉段(MCA)未发现明显粥样硬化斑块,相邻2 cm以内冠状动脉段发现动脉硬化斑块75例(38.5%),其中近端66例(33.8%),远端9例(4.6%)。有动脉硬化斑块形成者其发病年龄显著高于无粥样硬化斑块形成者(P<0.05),2组壁冠状动脉的深度及长度无显著差异(P>0.05)。    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为MB长期累积效应所致。
Abstract:
Objective    To study the prevalence and morphological features of myocardial bridge (MB) on dual-source computed tomographic coronary angiography (DSCTCA), and to determine the relationship between MB and the neighboring coronary atherosclerosis.     Methods    Totally 835 consecutive patients with suspected coronary disease or for physical examination underwent DSCTCA for the presence of MB. The number, length, and depth of MB were observed and evaluated. All cases of MB were divided into two groups according the presence or absence of atherosclerosis in the coronary artery 2 cm neighboring to MB. The patients’ age as well as the length and depth of MB were compared between two groups.     Results    One hundred and ninety-five MB segments were identified in 182 of 835 (21.8%) patients. Of 195 segments, 183 located in left anterior descending coronary artery (LAD) (93.8%). The mean length of MB segments was (19.5±8.2) mm, and the mean depth (1.5±0.8) mm. No evidence of atherosclerosis was found in the mural coronary artery. In a 2-cm-long segment immediately proximal or distal to MB, atherosclerotic plaqueswere found in 75 (38.5%), including 66 proximal segments (33.8%) and 9 distal segments (4.6%). The patients’ age in the group with atherosclerosis was significantly older than that in the group without atherosclerosis (P<0.05). No significant difference in the length or depth of MB segment was found between two groups.     Conclusion    DSCTCA can efficiently detect MB with a high detection rate and clearly show the morphological features of MB in vivo. Coronary atherosclerosis neighboring to MB may result from the persistent effect of MB.

参考文献/References:

张雪梅, 王健, 黎川, 等. 心肌桥的双源CT诊断及临床意义[J]. 第三军医大学学报, 2008, 30(20):1897-1899.

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更新日期/Last Update: 2008-10-10