Value of MRI multi-parameter imaging in differential diagnosis of benign parotid tumors
10.3969/j.issn.1002-1671.2023.12.005
- VernacularTitle:MRI多参数成像在腮腺良性肿瘤鉴别诊断中的价值
- Author:
Xuebing LI
1
;
Jiaoyun WANG
;
Jin WANG
;
Lili GUO
;
Ziyi WANG
Author Information
1. 晋城市人民医院核医学科,山西 晋城 048026
- Keywords:
magnetic resonance imaging;
pleomorphic adenoma;
diffusion weighted imaging;
diagnostic value
- From:
Journal of Practical Radiology
2023;39(12):1931-1935
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of multi-parameter features based on MRI in the differential diagnosis of benign parotid tumors.Methods Retrospective analysis was conducted on the MRI data of 144 lesions in 123 patients.According to the pathological results,all cases were divided into pleomorphic adenoma(PA)group(n=90)and non-PA group(n=33).The gender,location,MRI signal and dynamic enhancement types of the two groups were compared and analyzed.Results There were all significant differences in age,gender,cystic degeneration,T1WI,T2WI signals,types of time-signal intensity curve(TIC),lesion location,edge and apparent diffusion coefficient(ADC)values between PA and non-PA groups(P＜0.05).Gender(female),T2 high signal and ADC values were in good agreement with the pathological results in PA(Kappa value was 0.62,0.62,0.78,respectively,P＜0.05).The receiver operating characteristic(ROC)curve showed that ADC value and Tpeak had good differential diagnostic value.Area under the curve(AUC)(AUCADC and AUCTpeak)were 0.97[95％confidence interval(CI)0.92-1.00]and 0.76(95％CI 0.52-0.97),respectively.Cut-off value of ADC was 1.03×10-3 mm2/s,and sensitivity and specificity was 85.71％and 100.00％,respectively.Cut-off value of Tpeak was 102 s,and sensitivity and specificity was 71.43％and 75.00％,respectively.When the two parameters were combined for differential diagnosis,the AUC was 0.92(95％CI 0.92-1.00),and the sensitivity and specificity was 92.86％and 87.50％,respectively.Conclusion The comprehensive analysis of multi-parameter imaging features based on MRI can improve the accuracy of differential diagnosis of benign parotid tumors and help to formulate individualized treatment plans.
