From: Semiautomatic segmentation of the kidney in magnetic resonance images using unimodal thresholding
N | Min | 5th percentile | Mean | 95th percentile | t | Max | SD | p (2-tailed) | MAD | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Accuracy (difference to the reference volume) | Observer 1 (1) | 48 | −11.4 | 2.4 | 4.5 | 6.7 | 4.3 | 30.4 | 7.4 | <0.01 | 6.6 |
Observer 1 (2) | 48 | −7.7 | 0.1 | 1.7 | 3.2 | 2.2 | 15.3 | 5.4 | <0.05 | 5.4 | |
Observer 2 | 48 | −15.5 | −3.6 | −1.6 | 0.3 | −1.7 | 11.2 | 6.7 | 0.095 | 4.4 | |
Total | 144 | −15.5 | 0.4 | 1.5 | 2.7 | 2.6 | 30.4 | 7.0 | <0.01 | 5.5 | |
Inter-observer reliability | Observer 1 (1)/observer 2 | 48 | −13.9 | 4.3 | 6.2 | 8.1 | 6.5 | 24.8 | 6.5 | <0.01 | 7.3 |
Observer 1 (2)/observer 2 | 48 | −7.6 | 1.9 | 3.3 | 4.7 | 4.9 | 13.9 | 4.7 | <0.01 | 4.4 | |
Total | 96 | −13.9 | 3.6 | 4.8 | 5.9 | 7.9 | 24.8 | 5.9 | <0.01 | 6.0 | |
Intra-observer reliability | Observer 1 (1)/observer 1 (2) | 48 | −6.3 | 1.5 | 2.9 | 4.2 | 4.4 | 15.1 | 4.5 | <0.01 | 4.3 |