摘要
目的探讨磁共振扩散加权成像(DWI)在胰腺癌与胰腺炎中的鉴别诊断价值。方法对胰腺癌组(n=18)、胰腺炎组(n=12)均行磁共振常规扫描和扩散加权成像(DWI,b值取0,600s/mm2),分析2组病变DWI信号特点,并测定2组表观扩散系数(ADC)值。定量分析比较2组间ADC值有无统计学差异。结果胰腺癌组、胰腺炎组ADC值分别为(1.82±0.13)×10-3 mm2/s、(1.95±0.21)×10-3 mm2/s,胰腺癌组ADC值低于胰腺炎组(t=2.10,P<0.05)。结论DWI有助于胰腺癌与胰腺炎的鉴别诊断,可作为常规MRI的重要补充检查方法。
Objective To investigate the value of MR di{fusion-weighted in discriminating pancreatic carcinoma and focal pancreatitis. Methods 18 patients with pancreatic carcinoma, 12 with focal pancreatitis were performed with routine MRI scanning and echo-planar DWI（EPI/DWI） with the b value of 0,600 s/mm2. Signal intensities on DWI were compared and apparent diffusion coeffient （ADC） values of normal pancreatic tissue and lesional tissue were calculated. ADC values be- tween the group of pancreatic carcinoma, focal pancreatitis were qualitatively analyzed and compared. Results The ADC values of the group of pancreatic carcinoma, focal pancreatitis were （1.82±0.13））〈 10 amm2/s, （1.95±0.21））〈 10 mm2/s, respectively. The ADC values of pancreatic carcinoma group was lower than the focal pancreatitis group （ t =2.10, P 0.05）. Conclusion DWI provides an important supplement to the routine MRI in the differentiation of pancreatic carcino- ma and focal pancreatitis.
出处
《医学影像学杂志》
2012年第12期2060-2063,共4页
Journal of Medical Imaging
关键词
胰腺肿瘤
胰腺炎
磁共振成像
扩散加权成像
表观扩散系数
Pancreatic neoplasms
Pancreatitis
Magnetic Resonance imaging
Diffusion-weighted imaging
Apparentdiffusion coefficient
