PURPOSE: To determine the value of magnetic resonance (MR) imaging in predicting resectability of head and neck neoplasms around the carotid arteries. MATERIALS AND METHODS: Forty-nine patients (28 male patients and 21 female patients aged 17-79 years; mean, 57.3 years) with head and neck masses and clinical evidence of carotid wall invasion underwent MR imaging. T1- weighted, T2-weighted, and gadolinium-enhanced T1-weighted images were analyzed to determine circumferential involvement of 53 arteries by tumor. RESULTS: More than 270° of circumferential involvement was considered suggestive of unresectability of the malignant neoplasm; 270° or less was considered lack of invasion. The sensitivity of MR imaging for determination of unresectable disease was 100% (12 of 12 cases), specificity was 88% (36 of 41), and accuracy was 91% (48 of 53). Accuracy was 100% for squamous cell carcinoma (n = 29). CONCLUSION: Tumor that encompasses more than 270° of the carotid artery probably cannot be removed from the artery. Tumor that involves 270° or less of the artery can be removed.
- Carotid arteries, MR
- Carotid arteries, surgery
- Head and neck neoplasms
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging