MuscleMap toolbox — Abdomen template

Template NIfTI files for the MuscleMap Toolbox (https://github.com/MuscleMap/MuscleMap), an open-source toolbox for automated muscle segmentation and quantitative analysis in MRI and CT. Template: Anatomical reference template for the lumbar paraspinal region, including 8 muscle labels (left and right multifidus, erector spinae, psoas major, and quadratus lumborum). Files: abdomen_template.nii.gz (template image), abdomen_template_dseg.nii.gz (combined segmentation), abdomen_template_dseg_label-1.nii.gz through abdomen_template_dseg_label-8.nii.gz (per-muscle segmentations). Usage: Template files are used by mm_register_to_template to spatially normalize lumbar paraspinal muscle segmentations to a common template space. Requires Spinal Cord Toolbox v6.5 (https://spinalcordtoolbox.com/). See GitHub (https://github.com/MuscleMap/MuscleMap) for installation and usage instructions. Cite: Weber KA 2nd, Wesselink EO, et al. Three-dimensional spatial distribution of lumbar paraspinal intramuscular fat revealed by spatial parametric mapping. Eur Spine J. 2025;34(1):27-35. https://doi.org/10.1007/s00586-024-08559-1