Abstract #1901

Visualization of Intraparotid Facial Nerve and Tumor Relationship: Feasibility and Accuracy Assessment

Xiaoxue Fan¹, Changwei Ding¹, Qian Wang¹, Chen Zhang², Yuanrui Li³, Guyue Zhao¹, Xiulan Ma⁴, and Yang Hou¹

¹Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China, ²MR Research Collaboration, Siemens Healthineers, Beijing, China, ³Digital Technology (Shanghai), Siemens Healthineers, SHENYANG, China, ⁴Department of Otolaryngology, Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China

Synopsis

Keywords: Head & Neck/ENT, Head & Neck/ENT

Motivation: Determining the degree of compression of the intraparotid facial nerve by the parotid tumor is helpful in formulating preoperative planning.

Goal(s): To assess the degree of compression exerted by the tumor on the IFN with a constructive interference in steady-state (CISS) sequence.

Approach: CISS sequences were used to determine the location of parotid tumors and their contact with the facial nerve.

Results: The accuracy of CISS images in determining tumor location was found to be 91.4%. Furthermore, CISS images demonstrated excellent concordance with surgical results (κ = 0.96) in evaluating the extent of tumor compression on nerves.

Impact: The CISS sequence improves the accuracy of parotid tumor localization and is reliable in assessing the relationship between the tumor and the facial nerve; knowing this relationship helps reduce the risk of facial nerve injury during surgery.

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