孤立性左心室心肌致密化不全磁共振图像的诊断特征

发布时间：2018-06-04 11:40

本文选题：心肌疾病 + 心室功能　；参考：《中国临床医学影像杂志》2015年10期

【摘要】：目的:探讨孤立性左心室心肌致密化不全(Isolated left ventricular noncompaction,ILVNC)心脏MRI的诊断特征。方法:2014年1—12月我院心内科门诊及住院患者共计8 895例行心脏超声心动图检查。排除其他合并疾病考虑ILVNC者行心脏MRI扫描,满足心脏超声及心脏MRI双重诊断标准及临床综合考虑纳入ILVNC组患者6例,分析临床资料及心脏MRI图像特点。结果:6例患者表现进行性心功能不全,伴有左心室扩大。ILVNC的心脏MRI诊断特征:左心室心肌分为两层,非致密化心肌层肌小梁粗大且排列不整齐,舒张末期可见隐窝充盈血液;心肌非致密化受累节段多,心尖部100%受累;舒张末期非致密化心肌与致密化心肌厚度比值超过2.3。结论:基于心脏MRI能够更准确全面展示非致密化心肌层可用于ILVNC诊断与鉴别,需要进一步行多中心大样本研究。
[Abstract]:Objective: to investigate the diagnostic characteristics of isolated left ventricular noncompaction MRI in isolated left ventricular myocardium. Methods: from January to December 2014, a total of 8 895 cases of cardiac echocardiography were performed in our hospital. Cardiac MRI scan was performed in patients who excluded other complicated diseases and considered ILVNC, which satisfied the double diagnostic criteria of cardiac ultrasound and cardiac MRI and included 6 patients in ILVNC group. The clinical data and the characteristics of MRI images were analyzed. Results six patients showed progressive cardiac insufficiency, accompanied by left ventricular enlargement. ILVNC: left ventricular myocardium was divided into two layers. The trabeculae of non-densified myocardial layer were thick and irregular, and the enddiastolic recess was filled with blood. The ratio of non-densified myocardium to densified myocardium was over 2.3 at the end of diastolic period. Conclusion: based on cardiac MRI, the noncompact myocardial layer can be more accurately demonstrated and can be used in diagnosis and differential diagnosis of ILVNC, and further multi-center and large sample studies are needed.
【作者单位】：陕西省人民医院;西安交通大学第一附属医院心内科;
【分类号】：R445.2;R542.2

【参考文献】