Diagnostic value of MR ADC combined with DCE-MRI for parotid lymphoma of parotid gland
10.3969/j.issn.1672-8270.2024.11.009
- VernacularTitle:磁共振表观弥散系数值联合动态增强磁共振成像在腮腺腺淋巴瘤中的诊断价值
- Author:
Zhuangjun CHEN
1
;
Lu WANG
;
Chuncai LIN
;
Wenrong HUANG
;
Lili FU
Author Information
1. 海南西部中心医院放射科 儋州 571700
- Keywords:
Parotid lymphoma of parotid gland;
Magnetic resonance;
Apparent diffusion coefficient(ADC);
Dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI);
Diagnostic value
- From:
China Medical Equipment
2024;21(11):45-50
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore diagnostic value of magnetic resonance apparent diffusion coefficient(ADC)combined with dynamic enhanced magnetic resonance imaging(DCE-MRI)for parotid lymphoma of parotid gland.Methods:Clinical data of 74 patients with tumors of parotid gland who admitted to Hainan Western Central Hospital from September 2021 to September 2023 were selected to carry out retrospective analysis,and they were divided into malignant tumor group(15 cases)and benign tumor group(59 cases)according to the diagnosis of surgical pathology.And then,the benign tumor group was further divided into two subgroups according to the result of surgical pathology,which included pleomorphic adenoma group(35 cases)and"parotid lymphoma of parotid gland"group(24 cases).The differences in ADC values and DCE-MRI parameters(Ve,Kep,Ktrans)were compared between malignant tumors and benign tumors,and between pleomorphic adenoma and parotid lymphoma of parotid gland.The efficacies of ADC values and DCE-MRI parameters in diagnosing malignant tumors were analyzed by means of the receiver operating characteristics(ROC)curve.Results:The ADC value,Ve value and Kep of benign tumor group were respectively(1.17±0.41)×10-3 mm2/s,(0.46±0.15)and(1.56±0.57)min,which were significantly higher than those[0.86±0.19× 103mm2/s,0.35±0.08,and 0.80±0.27 min]of malignant tumor group(t=2.841,2.733,5.004,P＜0.05),respectively.Results of binary logistic regression analysis showed that ADC,Ve and Kep were respectively influence factors on benign and malignant parotid tumors(OR=0.045,0.001,0.004,P＜0.05).ROC curve analysis showed that the AUC values of single ADC,Ve,Kep,and the combination of them were respectively 0.726,0.715,0.903 and 0.915 in diagnosing benign and malignant parotid tumors.There was not significant difference in Ktrans value between pleomorphic adenoma group and"parotid lymphoma of parotid gland"group(P＞0.05).The ADC value and Ve value of"parotid lymphoma of parotid gland"group were lower than those of pleomorphic adenoma group,while Kep value of"parotid lymphoma of parotid gland"group was higher than that of pleomorphic adenoma group,and the differences of them between two groups were significant(t=4.568,4.897,4.805,P＜0.05),respectively.Binary logistic regression analysis showed that ADC,Ve and Kep were influential factors of occurring parotid lymphoma of parotid gland(OR=0.042,0.000,13.452,P＜0.05),respectively.ROC curve analysis showed that the AUC values of single ADC,Ve and Kep,and the combined diagnosis of them were respectively 0.742,0.784,0.763 and 0.959 for parotid lymphoma of parotid gland.Conclusion:Magnetic resonance ADC value and DCE-MRI parameter have favorable value in identifying benign and malignant parotid tumors,and in identifying and diagnosing parotid lymphoma of parotid gland and pleomorphic adenoma,and the combined diagnosis has higher diagnostic value.
