KHẢO SÁT MỘT SỐ MỐC GIẢI PHẪU TRÊN HÌNH ẢNH HỌC ẢNH HƯỞNG ĐẾN PHẪU THUẬT CẤY ỐC TAI TẠI BỆNH VIỆN TAI MŨI HỌNG THÀNH PHỐ HỒ CHÍ MINH NĂM 2024 - 2025

Abstract

Objective: To survey some important anatomical landmarks on CT Scan images that affect cochlear implant surgery at Ear Nose Throat Hospital of Ho Chi Minh City. Methods: A descriptive case series study of 35 patients indicated for cochlear implant surgery at Ear Nose Throat Hospital of Ho Chi Minh City from December 2024 to June 2025. Results: Among the patients, 71.42% (50/70) had good mastoid pneumatization, 47.14% (33/70) had a low tegmen tympani, and 54.29% (38/70) had an anteriorly protruding sigmoid sinus. Regarding the facial recess, 71.42% (50/70) had a wide facial recess, while 52.86% (37/70) had pneumatization of the facial recess. The majority of patients (75.71% - 53/70) had a normal cochlear aqueduct position, while 77.14% (54/70) had a round window ridge shaped like the letter "O." For the cochlea, 88.57% (62/70) of patients had normal cochlear development, with only a small percentage (8.57% - 6/70) having incomplete type I cochlear development. Regarding the semicircular canal, 90% (63/70) had a normal structure, while 4.28% (3/70) had a dilated vestibular aqueduct. Notably, all patients (100% - 70/70) had a normal internal auditory canal, with no cases of narrowing. Conclusion: The study shows that using CT scans to evaluate anatomical landmarks is necessary to optimize the cochlear implant surgery process. Diagnosing and assessing anatomical abnormalities helps doctors prepare better and select the appropriate surgical method, thereby improving treatment outcomes and minimizing complications.