Chen Sheng-jiang, Zhang Zhou-long, Chen Mei, Dong Ping-shuan, Yang Xu-ming, Wang Ke, Li Zhi-juan
Department of Ultrasound, First Affiliated Hospital of Henan University of Science and Technology, Luoyang 471003, China.
Zhonghua Xin Xue Guan Bing Za Zhi. 2010 May;38(5):402-5.
To analyze the echocardiographic standardized myocardial segmentation features in patients with left ventricular noncompaction (LVNC).
Echocardiographic characteristics of 9 patients with LVNC were analyzed and the localization of lesions were determined according to the standardized myocardial segmentation (SMS) recommended by American Heart Association (AHA).
Loose trabeculation in the myocardial lesions were evidenced in all LVNC patients. Communication between deep intertrabecular recess and LV cavity was evident with color flow imaging. According to SMS of AHA, noncompaction of ventricular myocardium was localized in apical segment in all 9 patients, in apical segment of the inferior wall (IW) in 9 patients, in apical segment of the lateral wall (LW) in 7 patients, in middle segment (MS) of IW in 7 patients, in MS of LW in 6 patients. One NC segment was also evidenced in apical segment and MS of septal ventricular wall, basal segment of IW and LW and right ventricular apex, respectively. NC was not found in left ventricular anterior wall.
Echocardiographic standardized myocardial segmentation is helpful to diagnose LVNC and NC was mostly localized in the apical segments of LVNC patients.
分析左心室心肌致密化不全（LVNC）患者的超声心动图标准化心肌节段特征。
分析9例LVNC患者的超声心动图特征，并根据美国心脏协会（AHA）推荐的标准化心肌节段划分（SMS）确定病变部位。
所有LVNC患者心肌病变处均可见疏松的肌小梁。彩色血流成像显示肌小梁间深陷与左心室腔相通。根据AHA的SMS，9例患者心室心肌致密化不全均位于心尖段，9例位于下壁（IW）心尖段，7例位于侧壁（LW）心尖段，7例位于IW中间段（MS），6例位于LW中间段。在室间隔心尖段和中间段、IW和LW基底段以及右心室心尖分别也发现1个致密化不全节段。左心室前壁未发现致密化不全。
超声心动图标准化心肌节段划分有助于诊断LVNC，致密化不全大多位于LVNC患者的心尖段。
