1.5T磁共振在腮腺粘液表皮样癌诊断的应用价值  

The Value of 1.5T MRI in the Diagnosis of Parotid Mucoepidermoid Carcinoma

作　　者：梁权海[1] 郭晓婷 李伟峰[1] 陈泽文[1] 梁长松[1] 陈忠[1] Liang Quanhai;Guo Xiaoting;Li Weifeng;Chen Zewen;Liang Changsong;Chen Zhong(Department of Radiology,The Peoples Hospital of Xinhui District,Jiangmen City,Jiangmen,Guangdong 529100;Department of Imaging Medicine,Jiangmen Vocational College of Traditional Chinese Medicine,Jiangmen,Guangdong 529100)

机构地区：[1]江门市新会区人民医院放射科,广东江门529100 [2]江门中医药职业学院影像医学教研室,广东江门529100

出　　处：《现代医用影像学》2022年第7期1202-1206,共5页Modern Medical Imageology

摘　　要：目的:初步探讨1.5T磁共振在腮腺粘液表皮样癌诊断的价值。方法:将江门市新会区人民医院2018年1月至2020年12月接收的腮腺肿瘤患者43例作为研究对象,经手术病理诊断为腮腺良性肿瘤32例,腮腺粘液表皮样癌11例;采用常规MRI平扫获取的腮腺肿瘤MRI特征,DWI扫描计算表观弥散系数(ADC),三维准连续式动脉自旋标记(3D-pCASL)扫描计算肿瘤血流量(TBF),分析MRI特征、ADC及TBF鉴别诊断腮腺粘液表皮样癌与腮腺良性肿瘤的价值。结果:腮腺良性肿瘤与腮腺粘液表皮样癌的形态、边界、信号及T2WI信号MRI特征比较差异有统计学意义(P<0.05);MRI特征中肿瘤边界不清晰鉴别诊断腮腺粘液表皮样癌的价值最高,敏感度、特异度、准确度、阳性预测值及阴性预测值分别为81.82%、87.50%、86.05%、69.23%、93.33%;腮腺粘液表皮样癌的ADC低于腮腺良性肿瘤;TBF高于腮腺良性肿瘤,差异有统计学意义(P<0.05);TBF鉴别诊断腮腺粘液表皮样癌的价值最高,敏感度、特异度、准确度分别为81.82%、93.75%、90.70%。结论:1.5T MRI的3D-pCASL扫描序列在鉴别诊断腮腺良性肿瘤与腮腺粘液表皮样癌价值较好。Objective:To preliminarily explore the value of 1.5 T MRI in the diagnosis of parotid mucoepidermoid carcinoma.Methods:A total of 43 patients with parotid gland tumors received from the People’s Hospital of Xinhui District,Jiangmen City from January 2018 to December 2020 were selected as the research objects.32 cases were diagnosed as benign tumors of the parotid gland and 11 cases of mucoepidermoid carcinoma of the parotid glands were diagnosed by operation and pathology.MRI features of parotid tumor obtained by plain MRI scan,DWI scan to calculate apparent diffusion coefficient(ADC),Three-dimensional quasi-continuous arterial spin labeling(3 D-pCASL)scan to calculate tumor blood flow(TBF),Analysis the valueof MRI features,ADC and TBF in diagnosis of mucoepidermoid carcinoma of parotid gland and benign tumor of parotid gland.Results:The MRI features of benign tumors of the parotid gland and mucoepidermoid carcinoma of the parotid gland were significantly different in morphology,boundary,signal and T2 WI signal(P<0.05);The unclear tumor boundary in MRI features was the most valuable in the differential diagnosis of mucoepidermoid carcinoma of the parotid gland,The Sensitivity,specificity,accuracy,positive predictive value and negative predictive value were 81.82%,87.50%,86.05%,69.23%,93.33%;The ADC of parotid mucoepidermoid carcinoma were lower than that of parotid benign tumors;The TBF of parotid mucoepidermoid carcinoma were higher than that of parotid benign tumors,the difference were statistically significant(P<0.05);The TBF had the highest value in the differential diagnosis of mucoepidermoid carcinoma of the parotid gland,with sensitivity,specificity,and accuracy of 81.82%,93.75%,and 90.70%,respectively.Conclusion:The 3 D-pCASL scanning sequence of 1.5 T MRI has a good value in the differential diagnosis of parotid benign tumor and mucoepidermoid carcinoma of the parotid gland.

关 键 词：腮腺肿瘤 良性 恶性 粘液表皮样癌 常规扫描 DWI扫描 3D-pCASL扫描 

分 类 号：R739.87[医药卫生—肿瘤] R445.2[医药卫生—临床医学]