{
  "abstract": "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. Results: Three distinct parts were identified in all 116 muscles. The inferior part was thickest in 81 muscles (69.8%), the coronoid part in 31 (26.7%), and the middle part in 4 (3.4%). The inferior part was also the longest segment. Conclusions: In this dataset, the human masseter muscle showed a three-part MRI morphology. The findings provide a basis for a preliminary part-dominance classification for anatomical and radiological description. Functional, biomechanical, and clinical correlations require prospective validation.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Clinical Anatomy, Mazovian Academy in Płock, Plac Dąbrowskiego 2, 09-402 Płock, Poland; (A.O.); (I.C.L.)",
    "Department of Radiology and Diagnostic Imaging, , 90-419 Lodz, Poland; (M.P.); (R.F.)",
    "School of Medicine, Faculty of Health Sciences, , 11527 Athens, Greece"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Adrian Okoń"
    },
    {
      "affs": [
        0
      ],
      "name": "Ingrid C. Landfald"
    },
    {
      "affs": [
        1
      ],
      "name": "Michał Podgórski"
    },
    {
      "affs": [
        1
      ],
      "name": "Roman Frach"
    },
    {
      "affs": [
        2
      ],
      "name": "George Triantafyllou"
    },
    {
      "affs": [
        0
      ],
      "name": "Łukasz Olewnik"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0225kfmbwvh6t.bib",
  "cited_by": 0,
  "doi": "10.3390/diagnostics16203398",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13702961/?tool=EBI",
  "id": "0225kfmbwvh6t",
  "issns": [
    "2075-4418"
  ],
  "landing_url": "https://europepmc.org/article/PMC/PMC13702961",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "R5-920"
    ],
    [
      "openalex",
      "3603|Temporomandibular Joint Disorders"
    ]
  ],
  "openalex": "W7222940564",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13702961/pdf/?tool=EBI",
  "pmcid": "PMC13702961",
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/0225kfmbwvh6t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:46Z",
      "native_id": "PMC:PMC13702961",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13702961"
    },
    {
      "first_seen": "2026-10-31T14:21:26Z",
      "native_id": "01b25ecbab674633aa03f8f9bb6acac5",
      "source": "doaj",
      "url": "https://doi.org/10.3390/diagnostics16203398"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "lcc:R5-920",
      "subfield": "general"
    }
  ],
  "title": "Three-Part MRI Morphology of the Human Masseter Muscle: A Part-Dominance Classification",
  "title_text": "Three-Part MRI Morphology of the Human Masseter Muscle: A Part-Dominance Classification",
  "type": "peer-reviewed",
  "updated_at": "2026-10-31T14:21:26Z",
  "url": "https://research.draconitic.com/paper/0225kfmbwvh6t",
  "venue": "Diagnostics (Basel, Switzerland)",
  "versions": []
}