国际医药卫生导报2015，Vol.21Issue(11)：1512-1516,1538,6.DOI:10.3760/cma.j.issn.1007-1245.2015.11.009
磁共振弥散加权成像对腮腺良恶性肿瘤鉴别诊断的价值
Magnetic resonance diffusion weighted imaging differentially diagnosing benign and malignant parotid tumors
曾向廷 1郑少燕 1吴先衡 1张慧红 1周研1
作者信息
摘要
Abstract
Objective To investigate the differential diagnostic value of magnetic resonance diffusion weighted imaging (MRDWI) for parotid masses.Methods MRI and DWI data of 64 patients (76 lesions) pathologically proven with parotid gland tumors were retrospectively analyzed.The apparent diffusion coefficient (ADC) values of region of interest (ROI) in the masses were measured on MRDWI.All data were statistically analyzed.The data between each two groups were compared using two independent samples t test,and P ＜0.05 was considered to indicate a statistical difference.Results The mean values of ADC were (0.998±0.264)× 103mm2/s,(0.753±0.135)× 10-3mm2/s,and (1.215±0.197) × 103mm2/s in 15 cases of carcinomas,cases of Warthin tumors and benign lymphoepithelial lesions,and others benign tumors in these 76 masses,respectively,with statistical differences between each two groups (P ＜0.05).Given ADC threshold value was 0.795× 10-3 mm2/s in differentially diagnosing carcinomas from Warthin tumors and lymphoepithelial lesions,the sensitivity and specificity in diagnosing malignant tumors were 66.7％ and 72.7％.Given ADC threshold value was 1.10× 10-3 mm2/s in differentially diagnosing carcinomas from other benign tumors,the sensitivity and specificity in diagnosing malignant tumors were 66.7％ and 64.7％.Given ADC threshold value was 1.064× 10-3 mm2/s in differentially diagnosing Warthin tumors and benign lymphoepithelial lesions from other benign tumors,the sensitivity and specificity in diagnosing Warthin tumors and benign lymphoepithelial lesions were 97.7％ and 94.1％.Conclusion Measuring the ADC values on DWI contributes to the diagnosis of parotid masses.关键词
腮腺肿瘤/弥散加权成像/表观弥散系数/磁共振成像Key words
Parotid tumors/Diffusion-weighted imaging/Apparent diffusion coefficient/Magnetic resonance imaging引用本文复制引用
曾向廷,郑少燕,吴先衡,张慧红,周研..磁共振弥散加权成像对腮腺良恶性肿瘤鉴别诊断的价值[J].国际医药卫生导报,2015,21(11):1512-1516,1538,6.
