Imaging Diagnosis of Hepatic Metastases of Pancreatic Carcinomas : Significance of Transient Wedge-shaped Contrast Enhancement Mimicking Arterioportal Shunt

胰腺癌肝转移的影像诊断：模拟动脉门静脉分流术的短暂楔形增强的意义

• 批准号: 16591191
• 负责人: GABATA Toshifumi
• 金额: $ 1.02万
• 依托单位: Kanazawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16591191/
• 关键词: pancreatic carcinoma; liver metastasis; arterioportal shunt; dynamic CT; dynamic MRI; CTAP; CTHA; 楔状濃染

OBJECTIVE. We aimed to evaluate the imaging findings of hepatic metastases from pancreatic carcinomas, especially wedge-shaped enhancement and its etiology.MATERIALS AND METHOD. Dynamic CT and MR images were performed in 87 patients with liver metastases from pancreatic carcinomas, and CT during arterial portography (CTAP) and CT during hepatic arteriography (CTHA) in 51 patients.RESULTS. In 37 patients, more than one metastatic lesions accompanied with wedge-shaped enhancement on dynamic studies and CHTA, and wedge shaped perfusion defect on CTAP. Six patients showed multiple wedge-shaped enhancement which was initially diagnosed as multiple arterioportal shunts (AP shunts). However, metastatic tumors appeared within the area of wedge-shaped enhancement on follow-up CT and/or MR images After all, 43 of 87 patients (49%) had AP shunt like contrast enhancement adjacent to liver metastases.CONCLUSION. Liver metastases from pancreatic carcinomas frequently show transient wedge-shaped enhancement, and should not be misdiagnosed as nontumorous arterioportal shunts.

OBJECTIVE.我们的目的是评估胰腺癌肝转移的影像学表现，特别是楔形强化及其病因。本文报告87例胰腺癌肝转移患者的动态CT和MR检查结果，其中51例同时行门脉动脉造影（CTAP）和肝动脉造影（CTHA）。37例患者在动态扫描和CHTA上有1个以上的转移灶伴楔形强化，CTAP上有楔形灌注缺损。6例患者表现为多发楔形强化，最初诊断为多发动脉-门静脉分流（AP分流）。然而，转移性肿瘤出现在楔形增强区域内的后续CT和/或MR图像。毕竟，87例患者中有43例（49%）有AP分流样增强邻近肝肿瘤。胰腺癌肝转移常表现为一过性楔形强化，不应误诊为非肿瘤性动静脉分流。

项目成果

Intraluminal duodenal diverticulum : MR findings

十二指肠腔内憩室：MR 结果

• 发表时间: 2006
• 期刊: Abdom Imaging 31
• 作者: Takamatsu S;Gabata T;Matsui O
• 通讯作者: Matsui O

Focal sparing of fatty liver in segment II associated with aberrant left gastric vein.

与胃左静脉异常相关的第 II 段脂肪肝的局灶性保留。

• 发表时间: 2004
• 期刊: Br J Radiol 77
• 作者: Terayama N;Matsui O;Gabata T;et al.
• 通讯作者: et al.

MRI findings of primary biliary cirrhosis: correlation with Scheuer histologic staging

• DOI: 10.1007/s00261-004-0228-x
• 发表时间: 2005-01-01
• 期刊: ABDOMINAL IMAGING
• 作者: Kobayashi, S;Matsui, O;Nakanuma, Y
• 通讯作者: Nakanuma, Y

Successful cystic fenestration for a macrocystic serous cystadenoma of the pancreas causing obstructive jaundice : report of a case.

成功进行囊性开窗治疗引起梗阻性黄疸的胰腺大囊性浆液性囊腺瘤：病例报告。

• 发表时间: 2006
• 期刊: Surgical Today 36
• 作者: Watanabe H;Otsubo K;Gabata T;他
• 通讯作者: 他

Solid serous cystadenoma of the pancreas: MR imaging with pathologic correlation

• DOI: 10.1007/s00261-004-0286-0
• 发表时间: 2005-10-01
• 期刊: ABDOMINAL IMAGING
• 作者: Gabata, T;Terayama, N;Minato, H
• 通讯作者: Minato, H