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目的探讨超声心动图对心肌致密化不全(noncompaction of the ventricular myocardium,NVM)的诊断价值及临床意义。方法彩色多普勒超声心动图对临床心功能不全及心脏扩大的患者进行多切面的探查,以获取心脏形态、结构及血流信号。结果 28例超声诊断为NVM,其中26例为左心室受累,2例右心室受累,采用詹尼(Jenni)等提出的诊断标准,其内容包括:(1)不合并其他心脏畸形(孤立性心肌致密化不全);(2)左室部分室壁增厚分为两层,致密层较薄而非致密层较厚;(3)收缩末期非致密化层/致密化层比例>2;(4)UCG可见心室与小梁隐窝间有血流交通。病变部位:位于心尖部,合并下壁6例,合并侧壁5例,心室壁均未见血栓形成。结论 NVM具有特征性声像图表现,是诊断NVM的可靠首选的检查手段。
Objective To investigate the diagnostic value and clinical significance of echocardiography in noncompaction of the ventricular myocardium (NVM). Methods Color Doppler echocardiography was performed on multiple sections in patients with clinical cardiac insufficiency and cardiac enlargement to obtain cardiac morphology, structure, and blood flow signals. Results Twenty-eight cases were diagnosed as NVM by ultrasonography. Among them, 26 cases had left ventricular involvement and 2 cases had right ventricular involvement. The diagnostic criteria proposed by Jenni et al. Included: (1) no other cardiac malformations (isolated myocardium Densification incomplete); (2) left ventricular wall thickening is divided into two layers, the dense layer is thinner than the thicker layer thicker; (3) end systolic non-densified layer / densification ratio> 2; (4) UCG visible blood flow between the ventricle and trabecular crypt. Lesions: Located in the apex, the merger of the lower wall in 6 cases, 5 cases of merged side wall, no ventricular wall thrombosis. Conclusion NVM has characteristic sonography, which is a reliable and preferred method of diagnosis for NVM.