室间隔内强回声带的超声观察及心肌结构分析  

Observation of bright band in interventricular septum with echocardiography and analysis of myocardial structure

作　　者：郭宝生[1] 任卫东[1] 唐力[1] 晏华[2] 陈昕[1] 富维强[1] 喻晓娜[1] 

机构地区：[1]中国医科大学附属第一医院心血管检查科,辽宁沈阳110001 [2]沈阳市大众医院超声科,辽宁沈阳110031

出　　处：《中国医学影像技术》2008年第1期85-87,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的通过对室间隔内强回声带的超声观察,探讨室间隔心肌结构及其成像基础,为室间隔研究提供结构基础及显像方法。方法51例健康志愿者为研究对象,用二维超声观察左室长轴切面、左室短轴切面及心尖四腔切面的室间隔,以室间隔内强回声带的中线为室间隔左、右室侧的分界线,测量各切面室间隔左室侧厚度(TLV)及右室侧厚度(TRV)并计算二者比值。结果超声明确显示室间隔内带状强回声并将室间隔分为左、右室侧,前室间隔处TLV较TRV明显增厚,中后室间隔TLV及TRV基本相等。离体加温后猪心脏的室间隔可轻易徒手将其分为两层,两层厚度特点与超声检测结果一致。结论室间隔在结构上可分为两层即室间隔的左室侧及右室侧;超声可显示室间隔两层间的界面即强回声带并准确测量室间隔左、右室侧厚度。Objective To study myocardial structure of interventricular septum （IVS） and its imaging basis by the echocardiographic observation of bright band in IVS, offering structural basis and imaging method for the study of IVS. Methods Fifty-one healthy volunteers were regarded as the subjects. The IVS was observed at long axis view of left ventricle, short axis view of left ventricle and apical 4-chamber view. The central line of bright band in IVS was thought as the dividing line, thus the thicknesses of left and right ventricular sides of IVS （TLV and TRV, respectively） were measured at these three scanned planes, and the ratio of TLV to TRL was calculated. Results The bright band of IVS that divided the IVS into left and right ventricular sides was clearly shown with echocardiography. At anterior IVS, TLV was thicker than TRV; at middle and posterior IVS, TLV and TRV were roughly the same. With naked hands, the IVS of boiled swine＇s heart could easily be divided into two parts, of which the characteristics in thickness were unanimous to the results of echocardiographic examination of 51 healthy volunteers. Conclusion IVS could be divided into two structural layers, the left and right ventricular sides; with echocardiography, the interface of the two layers of IVS can be shown, i. e. , the bright band, and the thicknesses of left and right ventricular sides can be accurately measured.

关 键 词：室间隔 强回声带 心肌结构 超声心动图 

分 类 号：R445.1[医药卫生—影像医学与核医学] R331.31[医药卫生—诊断学]