Goei R, Ronnen H R, Kessels A H, Kragten J A
Department of Radiology, De Wever Hospital, Heerlen, The Netherlands.
Rofo. 1997 Jan;166(1):36-9. doi: 10.1055/s-2007-1015374.
To determine the efficiency of ultrasonographic measurements of the inferior vena cava (IVC) and hepatic vein (HV) in the detection of elevated systemic venous pressure due to right heart failure.
Measurements of the Collapsibility Index (CI) of the Inferior vena cava (IVC) and hepatic vein (HV) was obtained from 95 persons without right failure. The CI values of 32 patients with clinically documented right heart failure and the data of a subgroup of 24 patients who received therapy, were statistically compared to those of the group without right heart failure.
There were statistical significant differences between the CI of the persons without and the patients with right heart failure and between the patients before and after therapy (two-sample T-test: p < 0.05). The position of the ROC curve indicates that measurements of the CI of the IVC and HV enables to distinguish very well patients with right heart failure from those without right heart failure. If the cut-off CI value between normal and abnormal of the IVC was set at 0.22, the sensitivity was 78% and the specificity 98%. When the cut-off value of the CI of the HV was set at 0.25 the sensitivity was 78% and the specificity 96%. There was good interobserver agreement with regard to the CI values of the IVC (correlation coefficient 0.65), but poor interobserver agreement with regard to the CI values of the HV (correlation coefficient 0.35).
Ultrasonographic measurement of the CI of the inferior vena cava is particularly useful to exclude systemic venous congestion in right heart failure and to monitor the effect of therapy.
确定超声测量下腔静脉（IVC）和肝静脉（HV）在检测右心衰竭所致体循环静脉压升高方面的效率。
对95例无右心衰竭患者进行下腔静脉（IVC）和肝静脉（HV）的塌陷指数（CI）测量。将32例临床确诊为右心衰竭患者的CI值以及24例接受治疗患者亚组的数据与无右心衰竭组进行统计学比较。
无右心衰竭者与右心衰竭患者的CI之间以及治疗前后患者的CI之间存在统计学显著差异（双样本T检验：p < 0.05）。ROC曲线位置表明，IVC和HV的CI测量能够很好地区分右心衰竭患者和无右心衰竭患者。如果将IVC正常与异常的CI临界值设定为0.22，敏感性为78%，特异性为98%。当HV的CI临界值设定为0.25时，敏感性为78%，特异性为96%。IVC的CI值观察者间一致性良好（相关系数0.65），但HV的CI值观察者间一致性较差（相关系数0.35）。
超声测量下腔静脉的CI对于排除右心衰竭中的体循环静脉淤血以及监测治疗效果特别有用。
