Table 2 Test–retest reliability of STL measurements. STL landmark measurements of four cases that were performed a second time by the same observer with an interval of one month between the measurements. mean m1: mean of first measurement, mean m2: mean of second measurement, range min: lowest difference between the two measurements, range max: highest difference between the two measurements, range mean: average difference between the two measurements ICC: intra class correlation coefficient, CI: confidence interval

From: Accuracy of pelvic bone segmentation for 3d printing: a study of segmentation accuracy based on anatomic landmarks to evaluate the influence of the observer