摘要:目的 通過(guò)對(duì)壺腹周圍癌的磁共振胰膽管MRCP和MRI征象特征分析,提高對(duì)壺腹周圍癌認(rèn)識(shí)水平。方法 對(duì)經(jīng)磁共振檢查并由病理證實(shí)的20例壺腹周圍癌的影像特征進(jìn)行分析歸納總結(jié)。結(jié)果 20例壺腹周圍癌共同的MRI表現(xiàn)為低位膽道梗阻和連接區(qū)的軟組織腫塊,不同來(lái)源的腫瘤在部位、大小、MRI強(qiáng)化、MRCP表現(xiàn)有不同特征,本組20例壺腹周圍癌MRI診斷全部符合,與手術(shù)病理結(jié)果一致者18例(90%),未明確鑒別診斷者2例(10%)。結(jié)論 常規(guī)MRI結(jié)合MRCP對(duì)壺腹周圍癌有較高的診斷和鑒別診斷價(jià)值。
關(guān)鍵詞:壺腹周圍癌;MRI;MRCP
The MRI and MRCP diagnosis of vater ampulla carcinoma
LUO You-chen,WANG Guang-jian
(People's Hospital of Pengzhou City, Pengzhou 611930,Sichuan,China)
Abstract:Objective Use MRCP and MRI characteristic analysis to improve the knowledge and diagnosis of vater ampulla carcinoma.Methods Images of 20 cases of vater ampulla carcinoma were get and analysised.Results 20 cases vater ampulla carcinoma, the MRI appearance is lower biliary obstruction and connective parenchyma mass, different tumors have different MRI strenghth,MRCP appearance, location, and largeness from different sources. All the 20 cases were in accordance with the diagnosis of MRI standard of vater ampulla carcinoma, and 18 cases (90%) were in agree with pathological diagnosis, 2 cases were undefined (10%).ConclusionConventional MRI and MRCP have good diagnosis and differential diagnosis value for vater ampulla carcinoma.
Key words:periampullary carcinoma; MRI; MRCP
壺腹周圍部也稱胰膽管十二指腸連接區(qū)(pancreaticobiliaryductal and duodenal union,PDDU),范圍小、解剖結(jié)構(gòu)復(fù)雜,壺腹周圍癌組織來(lái)源多樣,早期明確診斷一直是影像學(xué)診斷的難點(diǎn)之一。本文對(duì)經(jīng)磁共振檢查并由病理證實(shí)的20例壺腹周圍癌的影像的分析,旨在提高診斷認(rèn)識(shí)水平。
1 資料與方法
1.1 一般資料 收集我院2010年l1月~2013年行上腹部磁共振檢查、經(jīng)手術(shù)病理證實(shí)的壺腹周圍癌20例,其中胰頭癌11例、膽總管下端癌4例、十二指腸乳突癌5例;20例壺腹周圍癌中男性9例,女性11例;年齡36~85歲,平均年齡60.75歲。主要臨床表現(xiàn)為黃疸、食欲不振、上腹不適和疼痛、皮膚瘙癢及消瘦等癥狀。
1.2 方法 使用Siemens Symphony 1.5T超導(dǎo)型MRI掃描儀,體部相陣控線圈。對(duì)比劑為釓-二乙三胺五乙酸(Gd-DTPA),劑量0.1mmol/kg,靜脈團(tuán)注,注射流率2~3ml/s。檢查前所有患者均空腹10~14h,取仰臥位,先行上腹部橫斷面和冠狀面T2WI、T1WI平掃及T1WI脂肪抑制序列掃描、厚層投射直接成像磁共振胰膽管水成像掃描。并對(duì)其中18例病例于注射對(duì)比劑后于動(dòng)脈期、靜脈期及平衡期分別行T1WI脂肪抑制序列橫斷面及冠狀面增強(qiáng)掃描。……