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PDDCA, head and neck organs at risk

Head and neck CT of one patient treated by radiotherapy, with nine organs at risk contoured by hand (PDDCA, MICCAI 2015).

10 test caseshead and neckimage CTresearch only
Read before comparing (1)
  • Images. Each moving image keeps its native voxels, spacing and direction; the starting alignment PDDCA's pairs share, found from the intensities, changes only its origin.
AccuracyCost
#MethodDiceSurface DiceHD95 mmTime sRAM GBGPU GBImages
11–2KonfAI segmentation app · TotalSegmentator (craniofacial_structures), the authors' packageGPUapp1 of 9 structures0.654 ±0.2470.630 ±0.2502.89 ±0.593814.54.6
21–2KonfAI segmentation app · TotalSegmentator (head_glands_cavities), the authors' packageGPUapp6 of 9 structures0.566 ±0.0700.511 ±0.07313.63 ±1.512612.73.3

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 Workstation.

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

Test cases
The 10 test cases are the fixed images of PDDCA's test pairs. The 10 development cases are the fixed images of its six development pairs and four of their moving images, taken in the order of sha256("2026:PDDCA_Seg:<pair>/<side>"). Each pair joins two different patients, no patient is on both sides, and both sides stay excluded from training.
Truth
contours by experts the dataset's manual contours of nine organs at risk: 1 brainstem, 2 optic chiasm, 3 mandible, 4 left and 5 right optic nerve, 6 left and 7 right parotid, 8 left and 9 right submandibular gland
Licence
none stated: PDDCA calls itself 'A Public Domain Database for Computational Anatomy' and says its CT were 'made available to the public domain' through TCIA (Head-Neck Cetuximab)
10 cases for tuning, never tested

0522c0002_0522c0190/fixed, 0522c0002_0522c0190/moving, 0522c0009_0522c0003/fixed, 0522c0014_0522c0329/fixed, 0522c0014_0522c0329/moving, 0522c0077_0522c0441/fixed, 0522c0253_0522c0330/fixed, 0522c0253_0522c0330/moving, 0522c0457_0522c0328/fixed, 0522c0457_0522c0328/moving