Value of synthetic MRI in the differential diagnosis of parotid gland tumors
10.3969/j.issn.1002-1671.2024.03.004
- VernacularTitle:合成MRI对腮腺肿瘤性病变的鉴别诊断价值
- Author:
Zanxia ZHANG
1
;
Shujian LI
;
Yong ZHANG
;
Weijian WANG
;
Manli SONG
;
Wenhao WANG
;
Baohong WEN
;
Jingliang CHENG
Author Information
1. 郑州大学第一附属医院磁共振科,河南 郑州 450052
- Keywords:
parotid gland tumor;
magnetic resonance imaging;
differential diagnosis
- From:
Journal of Practical Radiology
2024;40(3):361-364
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the application value of quantitative relaxation parameters based on synthetic MRI technology in the differential diagnosis of parotid gland tumors.Methods Conventional MRI and synthetic MRI data of 59 patients with patho-logically confirmed parotid gland tumors were analyzed retrospectively.T1,T2,and proton density(PD)values of the tumor were extracted from T1,T2 and PD mapping.The differences in quantitative relaxation parameters of pleomorphic adenomas,Warthin tumors,and malignant tumors were further compared.Diagnostic performance of each quantitative relaxation parameter was assessed and com-pared via receiver operating characteristic(ROC)curve and DeLong test.Results T2 value was significantly higher in pleomorphic adenomas than that in malignant tumors(P<0.05).The T1,T2,and PD values of pleomorphic adenomas and malignant tumors were significantly higher than those of Warthin tumors(P<0.05).The area under the curve(AUC)of the T2 value in differentia-ting pleomorphic adenomas from malignant tumors was 0.794.The AUC for T1 value(0.939)in differentiating Warthin tumors from malignant tumors was significantly higher than that of T2(0.873,P=0.341)and PD(0.927,P=0.891)values,without sta-tistically significant difference.The AUC for T2 value(0.968)in differentiating pleomorphic adenomas from Warthin tumors was significantly higher than that of T1(0.931,P=0.360)and PD(0.876,P=0.120)values,without statistically significant difference.Conclusion Quantitative relaxation parameters based on synthetic MRI technology may contribute to differentiating pleomorphic adenomas,Warthin tumors,and malignant tumors of the parotid gland.
