儿童扩张型心肌病心腔血液超声背向散射参数的研究  

Research on parameters of ultrasonic integrated backscatter of cardiac blood in children with dilated cardiomyopathy

作　　者：牛琳[1] 陆颖静[1] 徐大地[1] 张永为[1] 

机构地区：[1]上海交通大学儿童医院心内科,上海200040

出　　处：《上海交通大学学报（医学版）》2009年第9期1101-1103,共3页Journal of Shanghai Jiao tong University:Medical Science

摘　　要：目的描述扩张型心肌病(DCM)患儿的心腔血液超声背向散射参数的特点。方法使用Philips Sonos7500型彩色多普勒超声诊断仪,对20例DCM儿童(DCM组)和20例健康儿童(对照组)应用超声背向散射积分(IBS)技术,采集心腔血液IBS数据。结果与对照组比较,DCM组左室长轴切面各腔室(左房、左室、右室)血液IBS周期变化幅度(CVIB)明显减低,两组比较差异均有统计学意义(P<0.01)。DCM组患儿左室不同节段血液平均IBS值(AII)和CVIB差异有统计学意义(P<0.01)。结论DCM儿童心腔血液背向散射参数与正常儿童存在差异。对于DCM患者,进行背向散射参数分析时,不宜将左室血液作为标化物。Objective To describe the characteristics of ultrasonic integrated backscatter（IBS）of cardiac blood in children with dilated cardiomyopathy（DCM）.Methods Philips Sonos 7500 equipped with an acoustic densitometry software system was used.The subjects included 20 children with DCM and 20 normal children.The IBS parameters of the cardiac blood were collected.Results Compared to normal children,the cyclic variation of integrated backscatter（CVIB）of blood in the left atria（LA）,left ventricle（LV）,and right ventricle（RV）were decreased significantly（P〈0.01）in children.There was significant difference between the blood AII and CVIB in different segments of the LV.ConclusionThere is significant difference in IBS parameters of blood between children with DCM and normal children.Blood in LV is not a suitable calibration reference in integrated backscatter analysis for patients with DCM.

关 键 词：扩张型心肌病 心脏超声 背向散射 血液 

分 类 号：R725.4[医药卫生—儿科]