A novel semi-automatic post-processing method dedicated to real-time dynamic MRI aiming at a fast and reliable quantification of abdominal wall muscles deformations. The described method combines a highly accurate supervised 2D+t segmentation procedure of the abdominal wall muscles (mean Dice similarity coefficient of 0.95 ± 0.03), the quantification of muscles deformations based on masks registration and the mapping of deformations within muscle compartments leveraging a dedicated parcellation. The present genuine method provides a quantitative analytical frame that could be used in further studies for a better understanding of abdominal wall deformations in physiological and pathological situations.
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