[1]舒健,赵建农,郭大静,等.多层螺旋CT肝脏体积测量的可重复性研究[J].第三军医大学学报,2009,31(11):1077-1079.
 SHU Jian,ZHAO Jian-nong,GUO Da-jing,et al.Reproducibility of measurement of liver volume using multi-slice spiral CT[J].J Third Mil Med Univ,2009,31(11):1077-1079.
点击复制

多层螺旋CT肝脏体积测量的可重复性研究(/HTML )
分享到:

《第三军医大学学报》[ISSN:1000-5404/CN:51-1095/R]

卷:
31卷
期数:
2009年第11期
页码:
1077-1079
栏目:
论著
出版日期:
2009-06-15

文章信息/Info

Title:
Reproducibility of measurement of liver volume using multi-slice spiral CT
作者:
舒健赵建农郭大静罗银灯
重庆医科大学附属第二医院放射科
Author(s):
SHU Jian ZHAO Jian-nong GUO Da-jing LUO Yin-deng
Department of Radiology,  Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
关键词:
计算机体层成像肝脏体积可重复性
Keywords:
CT liver volume reproducibility
分类号:
R322.47;R814.42
文献标志码:
A
摘要:
目的   评价多层螺旋CT肝脏体积测量的可重复性和一致性。   方法   将20例上腹部螺旋CT扫描患者的扫描数据传输至工作站进行肝脏体积重组、测量。由3位有经验的放射科医师独立进行,每位观察者对患者均测量2次。观察者内或观察者间的差异用重复测量的方差分析比较,相互关系用组内相关系数(ICC)描述。观察者间的可靠性分析用Cronbach’s alpha系数描述。   结果   观察者A 2次测得肝脏体积为(1 265.53±421.43)cm3和(1 272.30±414.73)cm3,两者间差值率为(0.80±2.20)%(P=0.15, ICC=0.998 8);观察者B 2次测量的体积为(1 299.97±403.48)cm3和(1 310.23±404.04)cm3,差值率为(0.90±1.90)%(P=0.07,ICC=0.998 3); 观察者C 2次测量的体积为(1 282.18±425.91)cm3和(1 289.73±424.66)cm3,差值率为(0.70±2.60)%(P=0.19,ICC=0.998 3)。3个观察者所测肝脏体积的值分别是(1 268.91±418.07)、(1 305.10±403.59)cm3和(1 285.97±425.10)cm3P=0.07,ICC=0.986 9,Cronbach’s alpha系数=0.995 6)。   结论   多层螺旋CT肝脏体积测量具有较高的一致性和可重复性。
Abstract:
Objective   To evaluate the reproducibility and agreement in the measurement of liver volume with multi-slice spiral computed tomography (CT).     Methods   Spiral CT was performed in 20 cases (14 healthy volunteers and 6 patients with cirrhosis). Images were transferred to a workstation, and volumes were measured by three observers with 5-year abdominal CT experience. Each observer performed the measurements in all subjects twice. Intra-observer and inter-observer variability was calculated using analysis of variance of the repeatedly measured results. The agreement was analyzed with the intra-class correlation coefficient (ICC).  Reliability analysis in inter-observer was performed with Cronbach’s alpha coefficient.    Results   Data measured by Observer A were (1 265.53±421.43)cm3 and (1 272.30± 414.73)cm3 [difference: (0.80±2.20)%, P=0.15, ICC=0.998 8], Observer B (1 299.97±403.48)cm 3and (1 310.23±404.04)cm3 [difference: (0.90±1.90)%,   P=0.07, ICC=0.998 3], Observer C (1 282.18±425.91)cm3 and (1 289.73±424.66)cm3 [difference: (0.70±2.60)%,  P=0.19, ICC=0.998 3], respectively. The mean liver volumes by the three observers were (1 268.91±418.07)cm3, (1 305.10±403.59)cm3, and (1 285.97±425.10)cm3, respectively (P=0.07, ICC=0.986 9, Cronbach’s alpha coefficient=0.995 6).    Conclusion    High reproducibility and agreement in the measurement of liver volume can be achieved with multi-slice spiral CT.
更新日期/Last Update: 2009-05-21