The value of diagnosis and differential diagnosis of gallbladder wall thickening diseases with DWI
10.3969/j.issn.1002-1671.2017.08.013
- VernacularTitle:DWI在胆囊壁增厚性病变中的诊断价值
- Author:
Sheng ZHAO
;
Hua SUN
;
Li GUO
;
Kui LONG
;
Weihua LI
- Keywords:
magnetic resonance imaging;
diffusion-weighted imaging;
gallbladder carcinoma;
color fusion images;
visual assessment
- From:
Journal of Practical Radiology
2017;33(8):1209-1212
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the usefulness of diffusion-weighted imaging(DWI) in the diagnosis and differential diagnosis of gallbladder wall thickening diseases.Methods 42 patients with gallbladder wall thickening (16 patients with carcinoma and 26 patients with benign lesion) were included in this study.All patients performed conventional MRI and DWI.The diagnostic performances of three methods (conventional MRI,visual assessment of color fusion image from DWI and T2WI,and ADC measurement) were evaluated by two radiologists.Results The area under the receiver operating characteristic curve were 0.570,0.849,0.901 for conventional MRI,visual assessment and ADC measurement respectively.The accuracy,sensitivity and specificity were 59.5%,62.5%,57.7% for conventional MRI,85.7%,81.2%,88.5% for visual assessment of color fusion image,and 83.3%,80.0%,85.2% for ADC measurement,respectivily.The mean ADC value of gallbladder cacinoma[(1.15±0.35)×10-3mm2/s]was significantly less than that of gallbladder benign lesion [(1.99±0.61)×10-3mm2/s](P<0.01).Conclusion The DWI(visual assessment of color fusion image and ADC measurement)might be a useful tool for diagnosis and differential diagnosis of the gallbladder wall thickening diseases.
