Related Experiment Video
Updated: Feb 3, 2026
08:16
High-resolution Structural Magnetic Resonance Imaging of the Human Subcortex In Vivo and Postmortem
Published on: December 30, 2015
15.8K
Imaging the bifid mandibular canal using high resolution MRI.
Peerapong Wamasing1, Chutamas Deepho1,2, Hiroshi Watanabe1
11 Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University , Tokyo , Japan.
Dento Maxillo Facial Radiology
|October 23, 2018
Summary
Bifid mandibular canals (BMCs) were found in 6.4% of cases using high-resolution MRI. Conventional imaging like panoramic radiography and CT did not reliably detect BMCs, suggesting MRI is superior for assessment.
Area of Science:
- Radiology
- Anatomy
- Medical Imaging
Background:
- Bifid mandibular canals (BMCs) are anatomical variations of the mandibular neurovascular bundle.
- Accurate identification of BMCs is crucial for dental procedures and understanding anatomical variations.
Purpose of the Study:
- To investigate the incidence of bifid mandibular canals (BMCs) using high-resolution MRI.
- To compare the diagnostic efficacy of MRI with panoramic radiography (PR) and CT for BMC detection.
Main Methods:
- Retrospective analysis of 249 hemi-mandible MRI datasets acquired with a 3D-VIBE sequence.
- Classification of BMCs into Type 0 (none), Type 1 (one accessory canal), and Type 2 (two accessory canals).
- Comparison of MRI findings with PR and CT scans for BMC identification.
Main Results:
- The incidence of BMCs (Types 1 and 2) was 6.4% (16 out of 249 cases).
- Nutrient canals (NCs) were identified in a majority of cases (58.4-97.6% incidence).
- Only one BMC was identified by CT; none were detected by PR.
Conclusions:
- High-resolution MRI reveals a 6.4% incidence of bifid mandibular canals.
- MRI is more effective than PR and CT for detecting BMCs.
- MRI is recommended for accurate assessment of BMCs and associated nutrient canals.
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