Table 2.

Summary statistics for the automated approach compared with the gold standard

Similarity MetricLeft KidneyRight KidneyTotal Kidney VolumeLiver Volume
Jaccard0.92±0.03 [0.82/0.97]0.91±0.04 [0.79/0.97]0.92±0.03 [0.80/0.97]0.90±0.03 [0.75/0.97]
Dice0.96±0.02 [0.90/0.99]0.95±0.02 [0.88/0.98]0.96±0.02 [0.89/0.98]0.95±0.02 [0.86/0.98]
Sensitivity0.96±0.03 [0.88/0.98]0.99±0.02 [0.84/0.99]0.96±0.02 [0.87/0.99]0.94±0.03 [0.85/0.98]
Precision0.96±0.02 [0.90/0.99]0.99±0.03 [0.84/0.99]0.96±0.02 [0.87/0.99]0.96±0.02 [0.87/0.99]
Mean surface distance, mm0.48±0.27 [0.16/1.72]0.56±0.33 [0.16/1.87]0.52±0.30 [0.16/1.79]0.71±0.38 [0.17/2.92]
Hausdorff distance, mm7.04±4.70 [1.90/23.1]7.89±5.52 [2.13/25.6]8.71±6.04 [2.30/25.4]12.0±6.34 [2.82/27.1]
  • Shown are the results for total kidney volumes as well as the liver volumes (data are given as mean ± SD, with minimum/maximum values between brackets). Mean surface distance and Hausdorff distance are reported in terms of voxel distance.