Fisher M, Ahmadi J, Zee C S, Weiner J M
Angiology. 1987 Feb;38(2 Pt 1):116-20. doi: 10.1177/000331978703800204.
We evaluated interobserver and intraobserver variability in the arteriographic assessment of the carotid bifurcation. Two neuroradiologists evaluated area stenosis and lumen surface morphology for 60 biplane carotid arteriograms in two reading sessions. Absolute interobserver differences for area stenosis averaged 8.8%, and interobserver differences were statistically significant for arteries of at least 50% stenosis. Analysis of observations for lumen surface morphology revealed statistically significant interobserver differences, averaging 29.5% disagreement. Intraobserver differences were not statistically significant. Observer variability for arteriography should be considered in the process of evaluating patients for carotid endarterectomy.
我们评估了在颈动脉分叉部动脉造影评估中观察者间和观察者内的变异性。两名神经放射科医生在两个读片环节中对60例双平面颈动脉造影片的狭窄面积和管腔表面形态进行了评估。狭窄面积的观察者间绝对差异平均为8.8%，对于至少50%狭窄的动脉，观察者间差异具有统计学意义。对管腔表面形态观察结果的分析显示观察者间存在统计学上的显著差异，平均分歧率为29.5%。观察者内差异无统计学意义。在评估患者是否适合进行颈动脉内膜切除术的过程中，应考虑动脉造影的观察者变异性。
