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TotalSegmentator MRI, 50 structures

Axial T1-weighted gradient-echo MR of one adult's upper abdomen (fat, fat-suppressed, in phase or opposed phase), with the TotalSegmentator MRI dataset's masks of the structures it holds (University Hospital Basel).

10 test casesabdomenimage MR
Read before comparing (3)
  • Cases. The fixed images of TotalSegMRI's pairs: a test pair's image is a test case, a development pair's a development case. The moving images are left out.
  • Outside models. TotalSegmentator's own MR models were trained on this dataset, so their line on it is not a fair comparison.
  • Values. As delivered: 16-bit integers with no common scale (maxima 311 to 1265 on the test pairs). No mask is given.
AccuracyCost
#MethodDiceSurface DiceHD95 mmTime sRAM GBGPU GBImages
1KonfAI segmentation app · MRSegmentator, KonfAI appGPUapp37 of 42 structures0.183 ±0.2390.105 ±0.148119.47 ±41.362.78.6
2KonfAI segmentation app · IMPACTSeg body, KonfAI appGPUapp1 of 42 structures0.011 ±0.0190.000 ±0.001117.89 ±179.311.73.3

The order averages each method's ranks on Dice, Surface Dice, HD95 mm, so the first one is not always the best in every column. ± is the 95% interval of the mean over the 10 cases. Two neighbours are tied when a paired Wilcoxon test on the shared cases does not find the upper one better on Dice (5%): the places a method could hold are then shown under its own. The best value of each column is in colour. Click a row to see its images, a column title to sort by it. Time and memory measured on Laptop.

Dice: how much the organ contours overlap, 1 is perfect. Surface Dice: the share of the contours' surfaces within a tolerance of each other, 1 is perfect. HD95: distance between the contours' surfaces.

Case by case

Click a score to look at that result: the image, the truth in green and the method's map in red. Underlined scores have their image; for the others you see the case without the result.

About the data

The first test case of TotalSegmentator MRI, 50 structures
The first test caseClick to look at every case.
Truth
contours by a program, verified by people the dataset's masks of the 50 structures of TotalSegmentator's task total_mr on each image, merged into one map (a voxel two masks claim goes to the smaller structure); the two images of a test pair hold 22 to 26 of them in common
Licence
CC BY 4.0
9 cases for tuning, never tested

s0181_s0222/fixed, s0252_s0171/fixed, s0201_s0241/fixed, s0242_s0158/fixed, s0166_s0159/fixed, s0254_s0197/fixed, s0293_s0199/fixed, s0155_s0207/fixed, s0289_s0270/fixed