Differential diagnosis of gallbladder adenomatous lesions with MRI
10.3969/j.issn.1002-1671.2015.05.017
- VernacularTitle:胆囊腺瘤性病变的 MRI 表现分析
- Author:
Bin SONG
;
Jingjing XU
;
Bei ZHANG
- Publication Type:Journal Article
- Keywords:
gallbladder neoplasms;
adenoma;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2015;(5):772-776
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of MR imaging in distinguishing adenomas from malignant tumors in gallbladder. Methods Clinical data and MR imaging features of 40 lesions in 37 patients with gallbladder adenomas (GA)confirmed by pathology were collected and reviewed retrospectively.Results The univariate analysis demonstrated that age (P =0.044),size (P =0.001), ratio of high-intensity signals on T2 WI (P =0.013),lobular margin (P <0.000 1),and tumor shapes (P =0.001)were statistically significantly different between adenomas and the malignancy.The Logistic regression analysis showed that only two parameters were significantly different for the prediction of malignant tumors of gallbladder,including lobular margin (P=0.002)and size (P=0.046).Further analysis with ROC curve showed that a threshold value of lesion diameter to distinguish the benign and malignancy could be at 1.59 cm. Conclusion Both lobular margin of GA and maximal diameter are independent factors in predicting the nature of GA,and the former exhibits more significant.Low ratio of high signal intensity in T2 WI and type circular shape are the contradictory factor for predic-ting adenocarcinoma of gallbladder.MRI is useful in the identification of patients with GA and gallbladder carcinoma developed from GA.
