心肌组织特征超声显像评价临床急性病毒性心肌炎  

Ultrasound Characteristics of Clinical Acute Viral Myocarditis

作　　者：陈袆 沈学东[1] 杨英珍[1] 虞敏[1] 

机构地区：[1]上海医科大学中山医院,上海市心血管病研究所200032

出　　处：《中国超声医学杂志》2000年第8期568-570,共3页Chinese Journal of Ultrasound in Medicine

基　　金：国家九五攻关课题项目!合同编号(969060213)

摘　　要：目的 :急性病毒性心肌炎局部心肌组织的病理改变会引起心肌组织密度的变化。本研究采用计算机辅助的声学组织密度定量技术测量急性病毒性心肌炎患者的声学组织密度参数 ,评价该技术在临床急性病毒性心肌炎辅助诊断中的价值。方法 :5 5例急性病毒性心肌炎患者作为病例组 ,2 7例正常人为对照组。行常规二维超声检查 ,录像记录左室二尖瓣和乳头肌水平短轴切面。取舒张末期图像 ,计算机对图像进行视频分析 ,左心室分成室间隔、前壁、侧壁及后壁四个节段 ,得出每个区域心肌灰阶的均值、离散度、中位数、最小值、最大值等指标。以心腔血流的灰阶水平作为本底对数据进行校正。结果 :二尖瓣和乳头肌切面 ,病例组在室间隔、左心室前壁、侧壁和后壁的各声学组织密度参数 (灰阶均值、灰阶离散度、最大灰阶值、灰阶极差 )均高于对照组 ,两组之间的差别具有显著性 ( p均 <0 .0 5 )。结论 :定量声学组织密度参数可将急性病毒性心肌炎患者与正常人区别 ,该技术可望成为一种可靠、简便。Objectives:To evaluate the alterations of myocardial echodensity in patients with acute viral myocarditis(AVM).Methods:Fiftyfive AVM patients and twentyseven normal subjects were studied by echocardiographyHewlett Packard Sonos 2500 echocardiographic system and 2MHz transducer were used for image acquisitionAdobe Photoshop 305 software supported by Windows 97 was used for image analysisThe mean grayscale,standard deviation, minimal grayscale and maximal grayscale of the left ventricle were acquired and analyzedResults:The mean grayscale,standard deviation,minimal grayscale and maximal grayscale of AVM patients were significantly greater than those of normal subjects(p<005)Conclusions:The Quantitative analysis of echodensity can be used as an effective method to detect AVM patievts from healthy people,and it may be helpful to improve the sensitivity of diagnosis.

关 键 词：急性病毒性心肌炎 超声组织定征 声学组织定量 

分 类 号：R445.1[医药卫生—影像医学与核医学]