MR elastography for evaluation of obstructive chronic pancreatitis
10.13929/j.1003-3289.201709088
- VernacularTitle:MR弹性成像评价梗阻型慢性胰腺炎
- Author:
Yanqing LIU
1
;
Yu SHI
;
Qiyong GUO
;
Min WANG
;
Lizhuo CANG
;
Ruoyun JI
Author Information
1. 中国医科大学附属盛京医院放射科
- Keywords:
Pancreatitis,chronic;
Elasticity imaging techniques;
Magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2018;34(3):367-371
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of 3.0T MR elastography (MRE) in diagnosis of obstructive chronic pancreatitis.Methods Totally 32 patients (lesion group) with suspected obstructive chronic pancreatitis who underwent pancreaticoduodenectomy and 32 volunteers (normal control group) were enrolled.MRE was performed,and pancreatic stiffness value was measured.The consistency between two observers and the repeatability of the same observer were evaluated.The difference of pancreatic stiffness value was compared between the two groups.The efficacy of pancreatic stiffness value in diagnosis of obstructive chronic pancreatitis was analyzed with ROC curve.Results The consistency between two observers and the repeatability of the same observer were excellent (all ICC＞0.9).The pancreatic stiffness value of normal control group and lesion group was (1.21±0.11)kPa and (1.51±0.24)kPa,respectively (t=-6.077,P ＜0.001).The area under ROC curve of pancreatic stiffness value in diagnosis of chronic pancreatitis,mild and moderate to severe,mild to moderate and severe was 0.900,0.941 and 0.960,respectively (all P＜0.001).Conclusion MRE can objectively measure pancreatic stiffness and noninvasively assess the severity of chronic pancreatitis.
