Gabata T, Matsui O, Kadoya M, Yoshikawa J, Miyayama S, Takashima T, Nagakawa T, Kayahara M, Nonomura A
Department of Radiology, Kanazawa University, School of Medicine, Ishikawa, Japan.
Radiology. 1994 Dec;193(3):683-8. doi: 10.1148/radiology.193.3.7972808.
To compare the efficacy of fat-suppressed T1-weighted magnetic resonance (MR) imaging and dynamic MR imaging in the diagnosis of small pancreatic adenocarcinomas.
Pancreatic adenocarcinomas in 15 patients were evaluated with dynamic computed tomography (CT) and five MR imaging sequences that included fat-suppressed T1-weighted technique and dynamic multiplanar gradient-recalled acquisition in the steady state technique.
The difference in contrast-to-noise ratios between tumor and normal pancreas was significantly different (P < .05) between the five MR imaging sequences used. In six patients, the combination of dynamic MR imaging and fat-suppressed imaging was superior to dynamic CT in the detection of tumors. Tumors accompanied by chronic pancreatitis were less distinct on fat-suppressed images but were clearly visible on dynamic MR images. Peripancreatic extension of tumors was better recognized on T1-weighted images and CT scans than on fat-suppressed images.
Fat-suppressed T1-weighted images and dynamic MR images were useful in the detection of pancreatic carcinomas. T1-weighted images and CT scans were superior in the evaluation of tumor extension.
比较脂肪抑制T1加权磁共振成像（MR）和动态MR成像在诊断小胰腺癌中的效能。
对15例胰腺癌患者进行了动态计算机断层扫描（CT）及五种MR成像序列检查，其中包括脂肪抑制T1加权技术和稳态下的动态多平面梯度回波采集技术。
所使用的五种MR成像序列中，肿瘤与正常胰腺之间的对比噪声比差异有统计学意义（P <.05）。在6例患者中，动态MR成像与脂肪抑制成像相结合在肿瘤检测方面优于动态CT。伴有慢性胰腺炎的肿瘤在脂肪抑制图像上不太清晰，但在动态MR图像上清晰可见。肿瘤的胰周浸润在T1加权图像和CT扫描上比在脂肪抑制图像上更容易识别。
脂肪抑制T1加权图像和动态MR图像对胰腺癌的检测有用。T1加权图像和CT扫描在评估肿瘤浸润方面更具优势。
