| 正常十二指肠乳头MSCT及与十二指肠乳头癌的对照研究 |
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| 引用本文： | 任俊杰,安晨杰,李晓光,张惠英.正常十二指肠乳头MSCT及与十二指肠乳头癌的对照研究[J].CT理论与应用研究,2022,31(1):111-116. |
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| 作者姓名： | 任俊杰 安晨杰 李晓光 张惠英 |
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| 作者单位： | 华北理工大学附属医院医学影像科,河北唐山063000,唐山市妇幼保健院放射科,河北唐山063000 |
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| 摘 要： | 目的:探讨正常十二指肠乳头及十二指肠乳头癌的CT表现,以期为十二指肠乳头癌提供更多影像信息.方法:回顾性分析40例正常十二指肠乳头及经病理证实的12例十二指肠乳头癌的CT资料,所有检查者均行低张下多层螺旋CT扫描,比较分析其CT表现.结果:正常十二指肠乳头以类圆形居多(62.5％,25/40),主要位于十二指肠降段中下...
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| 关 键 词： | 体层摄影术 X线计算机 十二指肠肿瘤 十二指肠乳头 |
| 收稿时间： | 2020-12-19 |
Comparative Study of Multi-slice CT between Normal Duodenal Papilla and Duodenal Papillary Carcinoma |
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| REN Junjie,AN Chenjie,LI Xiaoguang,ZHANG Huiying.Comparative Study of Multi-slice CT between Normal Duodenal Papilla and Duodenal Papillary Carcinoma[J].Computerized Tomography Theory and Applications,2022,31(1):111-116. |
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| Authors: | REN Junjie AN Chenjie LI Xiaoguang ZHANG Huiying |
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| Abstract: | Objective: In order to provide more imaging information for duodenal papillary carcinoma, we explored the CT manifestations of the normal duodenal papilla and duodenal papillary carcinoma. Methods: We performed retrospective analysis on the CT data of 40 cases with normal duodenal papilla and 12 cases with duodenal papillary carcinoma confirmed by pathology, all the cases underwent hypotonic multi-slice spiral CT for the contrastive analysis of the CT manifestations. Results: Most of the normal duodenal papillas had round shapes, and were mainly located in the posterior-lateral inner wall of the middle-lower descending part of duodenum (100%, 40/40), whose maximum diameter was (8.31±1.29) mm. Enhanced scan resulted in obvious enhancement in arterial phase, continued enhancement in portal venous phase and decreased enhancement in equilibrium phase, whose density was still higher that that of plain scan. In the cases with duodenal papillary carcinoma, we saw lobular, round or oval soft tissue masses in the duodenal papilla region, whose maximum diameter was (21.47±2.49) mm. MPR and CPR showed that gourd-shaped (Inverted "3") soft tissue masses protruded into the duodenal lumen. Enhanced scan resulted in homogeneous mild-moderate enhancement in arterial phase, increased enhancement in venous phase and decreased enhancement in equilibrium phase. The intrahepatic and extrahepatic bile ducts expanded, gallbladders magnified while the common bile duct and pancreatic duct expanded and got cut off at the papillary tumor, which showed “double duct sign”. Conclusion: The structure of ampulla under the filling state of hypotonic duodenum can be clearly displayed. The combination of multiplanar reconstruction (MPR) and curved surface reconstruction (CPR) is helpful to the diagnosis of duodenal papillary carcinoma |
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