High-contrast high-resolution imaging of posttraumatic mandibular nerve by 3DAC-PROPELLER magnetic resonance imaging: correlation with the severity of sensory disturbance

Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Makoto TerumitsuTsutomu Nakada

Abstract

Magnetic resonance neurography reveals abnormal morphologies of regenerated nerves and overgrown connective tissue in injured trigeminal nerves, suggesting neuroma formation. We hypothesized that such deformities and scar formation contribute to pain symptoms. High-contrast high-resolution magnetic resonance imaging was utilized to evaluate the inferior alveolar nerve and lingual nerve following traumatic injury in 19 patients. The relationship between the morphologic classification and severity of the sensory disorder was assessed. In all cases, 3-dimensional anisotropy contrast periodically rotated overlapping parallel lines with enhanced reconstruction (3DAC-PROPELLER) successfully revealed the inner structures within the lesion. The isolated type represented the normal course of the nerve isolated from scar-like tissue (8 cases), whereas the deformity type included the deformed nerve either within scar-like tissue or by itself, unassociated with surrounding scar-like tissue (9 cases). In the remaining 2 cases, the nerve tissue and scar-like tissue were incorporated. Patients with the deformity type exhibited significantly more severe pain symptoms compared with patients with the isolated type. Overgrown connective tissue do...Continue Reading

Citations

Jan 30, 2021·The British Journal of Radiology·Fréderic Van der CruyssenJan Casselman
May 4, 2021·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Chuan ZhangHan-Feng Yang
Aug 29, 2021·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·John R ZunigaAvneesh Chhabra
Jun 16, 2018·Dental Clinics of North America·Husniye Demirturk KocasaracDonald R Nixdorf

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