GIÁ TRỊ CỦA CỘNG HƯỞNG TỪ 1.5 TESLA TRONG ĐÁNH GIÁ GIAI ĐOẠN TIS, T1, T2 CỦA UNG THƯ THANH MÔN TRƯỚC PHẪU THUẬT

Abstract

Objective: This study aims to evaluate the value of 1.5 Tesla Magnetic Resonance Imaging (MRI) in assessing the invasion of submucosal structures (anterior commissure, paraglottic space, thyroid cartilage, supraglottis, and subglottis) and in staging T classification in 35 patients with early-stage glottic cancer (Tis, T1, T2). Subjects and Methods: A retrospective cross-sectional study was conducted on 35 patients with early-stage glottic cancer who underwent MRI and surgery at Hanoi Oncology Hospital from January 2022 to February 2025. MRI and histopathological results were analyzed to assess tumor location, invasion extent, and T staging. Results: The average age of the patients was 63.46 ± 7.13 years, with 100% being male, 97.1% having a history of smoking, and 85.7% having a history of alcohol consumption. The most common symptom was hoarseness (91.4%). 80% of tumors were unilateral (32.3% in the left vocal cord, 38.7% in the right vocal cord). Compared to histopathology, MRI tended to overestimate the invasion of submucosal structures, with the highest overestimation occurring at the anterior commissure (34.3% vs. 28.6%). However, MRI still demonstrated high accuracy in T classification, correctly staging 82.9% of cases (95% confidence interval: 66–93%). Additionally, there was a strong correlation, with a correlation coefficient of tau-b = 0.75 according to Kendall’s tau-b and rho = 0.77 according to Spearman’s rho. Conclusion: MRI has high accuracy in assessing submucosal invasion and T staging of early-stage glottic cancer (Tis, T1, T2).