Diagnostics
Three-Part MRI Morphology of the Human Masseter Muscle: A Part-Dominance Classification
Par Okoń A, Landfald IC, Podgórski M et 3 autres.
Contenu en anglais
Résumé
Background
A simple MRI-based framework for describing part-specific dominance patterns in the human masseter muscle is lacking. This study aimed to characterize its MRI-visible parts and develop a preliminary part-dominance classification.
Methods
This retrospective cross-sectional study analysed 58 clinical MRI examinations, comprising 116 masseter muscles with complete bilateral visualization. The three MRI-visible parts were identified on T2-weighted 3D coronal source images. Thickness and length were measured using a predefined study procedure, and each muscle was assigned a part-dominance type according to which part was thickest.