排粪造影中五项肛管直肠形态学测量的可重复性
Reproducibility of five anorectal morphologic measurements in defecography.
作者信息
Yang X, Partanen K, Farin P, Ji H, Soimakallio S
机构信息
Department of Clinical Radiology, Kuopio University Hospital, Finland.
出版信息
Acad Radiol. 1994 Nov;1(3):224-8. doi: 10.1016/s1076-6332(05)80719-6.
RATIONALE AND OBJECTIVES
We evaluated the inter- and intraobserver reproducibility of measuring five morphologic parameters of the anorectum in defecography (evacuation proctography).
METHODS
Measurements from 42 defecographic studies were statistically analyzed. The parameters measured during resting, squeezing, and straining included two anorectal angles (posterior and axis), maximal width of the anal canal, maximal width of the rectal lumen, and size of the rectocele.
RESULTS
The results demonstrated only fair interobserver agreement (kappa = 0.22-0.38) for almost all measurements of the five morphologic parameters. There were high correlations (kappa = 0.62-1.00) among most intraobserver measurements.
CONCLUSION
For defecographic measurement, the five parameters we studied have relatively poor clinical value because of high inter- and intraobserver inconsistency.
原理与目的
我们评估了排便造影（排空直肠造影）中测量直肠肛管五个形态学参数时观察者间及观察者内的可重复性。
方法
对42项排便造影研究的测量结果进行了统计学分析。在静息、挤压和用力排便时测量的参数包括两个直肠肛管角（后角和轴角）、肛管最大宽度、直肠腔最大宽度以及直肠膨出大小。
结果
对于五个形态学参数的几乎所有测量，结果仅显示出一般的观察者间一致性（kappa = 0.22 - 0.38）。大多数观察者内测量之间存在高度相关性（kappa = 0.62 - 1.00）。
结论
对于排便造影测量，由于观察者间和观察者内的高度不一致性，我们研究的这五个参数临床价值相对较差。
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