Related Experiment Video
Updated: Jan 6, 2026

Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection
Published on: August 15, 2025
Diameter of External Carotid Arteries in Patients With Mandibular Osteoradionecrosis
Naoya Ishibashi1, Toshiya Maebayashi2, Takuya Aizawa2
1Department of Radiology, Nihon University School of Medicine, Tokyo, Japan ishibashi.naoya@nihon-u.ac.jp.
Background/Aim:
To evaluate the association between osteoradionecrosis (ORN) of the mandible and stenosis of the external carotid artery after radiation therapy (RT) for head and neck cancer.
Patients And Methods:
The computed tomography images of 42 patients (36 men, six women; median age, 64.5 years) treated with RT for head and neck cancer between January 2011 and December 2015 were reviewed. The cross-sectional diameters of the bilateral external carotid arteries were measured on contrast-enhanced images taken after completion of RT.
Results:
Nine of the 42 included patients (21.4%) developed ORN after a median interval of 34 months from completion of RT. Univariate analysis revealed that external carotid artery diameter ≤ the median diameter was significantly associated with ORN development (p=0.008 and 0.013). In multivariate analysis, left external carotid artery diameter ≤ the median was significantly associated with ORN development (p=0.023).
Conclusion:
External carotid artery stenosis was significantly associated with ORN development.
More Related Videos
09:11Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability
Published on: February 23, 2016
06:53A Rat Carotid Artery Pressure-Controlled Segmental Balloon Injury with Periadventitial Therapeutic Application
Published on: July 9, 2020
Related Concept Videos
Arteries of the Head and Neck
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Aneurysm III: Interprofessional Care