| 杨秀军,缪竞陶,陈海曦,李建奇,诸慧铭,陈丽萍.胆石症的磁共振仿真胆道镜成像研究[J].中国医学影像技术,1999,15(8):601~603 |
| 胆石症的磁共振仿真胆道镜成像研究 |
| MR Virtual Cholangioscopy of Cholecystolithiasis |
| 投稿时间：1999-05-19 |
| DOI： |
| 中文关键词: 胆石症 磁共振成像 诊断,计算机辅助 胆道镜术 |
| 英文关键词:Cholecystolithiasis Magnetic resonance iamaging Diagnosis computer assisted Cholangioscopy |
| 基金项目: |
|
| 摘要点击次数: 1705 |
| 全文下载次数: 820 |
| 中文摘要: |
| 目的 探讨磁共振仿真胆道镜(MRVC)诊断胆石症的价值。方法 30 例胆石症患者行了冠状面二维HT2 FSE序列薄层无间隔扫描,在工作站用导航技术作内镜成像等后处理。7 例胆囊切除术后,4 例胆囊严重萎缩且充满结石者未获胆囊内镜影像。结果 所有段以上胆管(100 %)和21 例胆囊(21/25,84 %)成功地获得了胆道镜样图像。胆石症患者检出率为96.7 % (29/30),长径2 ～20mm 胆道结石均得以清晰显示。源影像见水线征(hydro linesigns)的结石内镜影像上呈边缘光滑且与管壁锐角相交的结节,水线征不完整或消失者呈与管壁钝角相交的结节；多发散在者呈路石样、聚集者呈小石堆样等改变。3 例常规MRI误诊的胆囊结石并胆囊癌有特征性表现而获确诊。发现1 例(3.3 %,1/30)假阳性结果。 |
| 英文摘要: |
| Objective To evaluate the value of MRVC in diagnosis of cholecystolithiasis compared with the findings of surgery and choledochoscope.Methods Thirty patients with cholecystolithiasis proven by surgery underwent MRVC,which reconstructed by navigator software on the workstation using source heavilily T2 weighted image data.Atrophic cholecyst fulled with stones shown on source images,MRVC of gallbladders wrer not created in 4 cases.Choledochoscope was done during operation in 7 cases.Results Stones ranging from 2 to 20mm in diameter were all well depicted on MRVC images except stones in 4 atrophic cholecysts which couldn′t be reformated and sandy calculi in one case.Overall detectibility of patients with cholecystolithiasis was 96.7%(29/30).Stones surrounded by bright lines (“hydro line signs”)shown on source images apeared as sharp margin nodus in an acute angle with the wall or free in the lumen on MRVC.All seven incarcerated calculi were found the hydro line sign disapeared at the side of stone fused with the wall shown on MRVC.MRVC depicted nodi as one by one scattered lining on wall or as a pile of clustering stones abutted on wall.The cholecyst calculi with gallbladder carinoma,which were misdiagnosed by CT and slice MRI in 3 cases presented as nodi abutted on the irregularly bulged wall.The irregular contour and shape of seriously inflamed bile ducts was easily seen on MRVC.There was one false positive result (3.3%).Conclusion MRVC is a noninvasive valuable method in the diagnosis of cholecystolithiasis especially with carcinoma. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
