MATLAB code for Automatic Thresholding of lumbar back muscle The algorithm is based on the following two papers. If you use the code or the radiofrequency RF data (which contains data from some patient trials of liver ablation), please cite this paper:

M. Fortin*, M. Omidyeganeh*, Y. Xiao*, M. O. Ahmad, M. Crites-Battie, H. Rivaz, Evaluation of an automated thresholding algorithm for the quantification of paraspinal muscle composition from MRI images, Springer BioMedical Engineering Online,
pdf, BioMed Central