Published August 16, 2026 | Version 1.4

MuscleMap Toolbox — Contrast-Agnostic Wholebody Muscle Segmentation Model Weights

Description

Pre-trained model weights for the MuscleMap Toolbox (https://musclemap.github.io/MuscleMap/), an open-source toolbox for automated muscle segmentation and quantitative analysis in MRI and CT.

Model: Contrast-agnostic computer-vision model trained on T1w, T2w, Dixon, STIR, DWI, T2Star, SPIR, and CT images. Segments 113 muscles and bones across the whole body including neck, shoulder, thorax, abdomen, pelvis, thigh, and leg.

Current version: v1.4

Usage: Model weights are downloaded automatically on first use by the MuscleMap Toolbox. See GitHub (https://github.com/MuscleMap/MuscleMap) or the MuscleMap website (https://musclemap.github.io/MuscleMap/) for installation instructions.

Cite: McKay MJ, Weber KA 2nd, Wesselink EO, et al. MuscleMap: An Open-Source, Community-Supported Consortium for Whole-Body Quantitative MRI of Muscle. J Imaging. 2024;10(11):262. https://doi.org/10.3390/jimaging10110262

Files

contrast_agnostic_wholebody_model.json

Files (104.9 MB)

Name Size
md5:b586ac488b2e40a4e8624a9a1c52d6b5
10.6 kB Preview Download
md5:910b722aeb641c380404c99ec6d1af97
104.9 MB Download
md5:e388417c03884fc1359c86602aa735f4
1.1 kB Download

Additional details

Software

Repository URL
https://github.com/MuscleMap/MuscleMap
Programming language
Python
Development Status
Active

References

  • McKay MJ, Weber KA 2nd, Wesselink EO, et al. MuscleMap: An Open-Source, Community-Supported Consortium for Whole-Body Quantitative MRI of Muscle. J Imaging. 2024;10(11):262. https://doi.org/10.3390/jimaging10110262
  • Wesselink EO, Elliott JM, McKay M, et al. Segment-Any-Muscle: Towards an Open-Source, Contrast-Agnostic Computer-Vision Muscle Segmentation Model for MRI and CT. Abstract, ISMRM 2025, Honolulu, Hawaii.