原发性扩张型心肌病与孤立性左心室心肌致密化不全的MRI特征

发布时间：2018-04-13 13:00

本文选题：心肌病 + 扩张型　；参考：《中国医学影像技术》2017年08期

【摘要】：目的对比分析原发性扩张型心肌病与孤立性左心室心肌致密化不全的MRI特征。方法对18例原发性扩张型心肌病和10例孤立性左心室致密化不全患者行心脏MRI扫描。对比两者舒张末期最大病变节段非致密心肌厚度(NC)、相应节段舒张末期致密心肌厚度(C)、运动特点、病变节段数、最大病变节段短轴缩短率、病变节段的分布特点。结果 18例原发性扩张型心肌病患者共823个节段,出现非致密心肌的病变节段数为124个;孤立性左心室心肌致密化不全患者共397个节段,其中病变节段数有115个。孤立性左心室心肌致密化不全病变节段的NC、NC/C、NC/(NC+C)均高于原发性扩张型心肌病(P均0.05),其病变节段的短轴缩短率也更高(P0.05)。2组的病变节段均以心尖段心肌病变为主,基底段少有受累或不受累,游离壁中以前壁、侧壁受累居多,室间隔受累较少。结论原发性扩张型心肌病与孤立性左心室心肌致密化不全MRI各具特征,尤其是非致密心肌的分布特点、受累节段数、厚度、NC/C,对临床诊断和鉴别诊断具有重要作用。
[Abstract]:Objective to compare the MRI features of primary dilated cardiomyopathy and isolated left ventricular myocardial densification.Methods MRI was performed in 18 patients with primary dilated cardiomyopathy and 10 patients with isolated left ventricular densification.The results were as follows: (1) compare the maximal end diastolic lesion segment with noncompact myocardial thickness, the corresponding segment end diastolic compact myocardial thickness, the motion characteristics, the number of lesion segments, the shortening rate of the maximum lesion segment, and the distribution characteristics of the lesion segment.Results there were 823 segments in 18 patients with primary dilated cardiomyopathy, 124 lesions with non-compact myocardium and 397 segments with isolated left ventricular densification.The NCnC / Cnc / NC-1 / NCCC) of isolated left ventricular myocardial densification insufficiency was higher than that of primary dilated cardiomyopathy (P < 0.05), and the short axis shortening rate of lesion segment was higher than that of P0.05.2 group, and the main lesion segment was apical cardiomyopathy in the group of P0.05.2.The basal segment was rarely involved or not, the anterior wall was mostly involved in the free wall, the lateral wall was mostly involved, and the interventricular septum was less involved.Conclusion MRI of primary dilated cardiomyopathy and isolated left ventricular myocardial densification is of great importance in clinical diagnosis and differential diagnosis, especially in the distribution of noncompact myocardium, the number of involved segments and the thickness of NC / C.
【作者单位】：金华市中心医院医学影像科;浙江大学医学院附属邵逸夫医院放射科;
【基金】：浙江省医药卫生科技省部共建项目(201463675) 金华市科学技术局社会发展类重点项目(2014-3-009)
【分类号】：R445.2;R542.2

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