超声背向散射参数对正常人心肌的组织定征分析  

Tissue characterization analysis of normal myocardium using ultrasonic integrated backscatter parameters

作　　者：张琦[1] 谢建华 姜智明[3] 

机构地区：[1]第二军医大学长海医院超声科,上海200433 [2]解放军第10医院特诊科,甘肃武威733000 [3]南通市第二人民医院超声科,江苏南通226002

出　　处：《中国临床医学影像杂志》2002年第1期14-16,共3页Journal of China Clinic Medical Imaging

摘　　要：目的:测定与分析正常心肌背向散射参数,为评价不同心肌病变提供参考。方法:对30例正常人心肌各节段进行背向散射参数联机分析,分别获得背向散射积分校正值(IBS%)及背向散射积分心动周期变化幅度值(CVIB),并同时测量室间隔、左室后壁的收缩期室壁增厚率(ΔT%)。结果:①各节段CVIB值比较:左室后壁中间部(LVPW-M)明显高于室间隔中间部(IVS-M)、左室前壁中间部(LVAW-M)及左室侧壁中间部(LVLW-M)(P<0.01～0.05);②各节段IBS%值比较:LVPW-M、IVS-M明显高于LVLW-M、LVAW-M(P<0.01);③LVPW、IVS基底部与中间部的CVIB、IBS%值无明显差异(P<0.05);④LVPW,IVS的CVIB与ΔT%呈平行关系,均表现为LVPW明显高于IVS(P<0.01)。结论:正常人的心肌各节段CVIB、IBS%的测量为临床进行各种病变心肌的组织定征及定量分析提供参考依据。Objective:To measure and analyze integrated backscatter parameters in normal myocardium for providing refer-ence data to estimate different myocardial diseases.Methods:We examined30normal volunteers using on-line analysis inte-grated backscatter(IBS)and got IBS%and CVIB values of all myocardial segments.In the same time we measured wall thick-ening rates(ΔT%)of IVS and LVPW.Results:①Comparing CVIB values of all myocardial segments we found that the CVIB value of LVPW-M was significant higher than that of IVS-M,LVAW-M and LVLW-M(P<0.01～0.05);②Comparing IBS%values of all myocardial segments we found that IBS%values of LVPW-M and IVS-M were significant higher than that of LVAW-M and LVLW-M(P<0.01);③Comparing CVIB and IBS%values of basal LVPW and IVS with medial LVPW and IBS showed no significant difference(P<0.05);④CVIB value paralleledΔT%and showed LVPW was significant higher than IVS (P<0.01).Conclusion:Measurement of CVIB and IBS%in normal myocardium can provide reference indexes for tissue characterizing and analyzing quantitatively different myocardial diseases in clinical practice.

关 键 词：心肌 超声检查 背向散射参数 正常人 组织定征 定量分析 

分 类 号：R445.1[医药卫生—影像医学与核医学] R542.2[医药卫生—诊断学]