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首页> 外文OA文献 >Efficacy of multidetector-row computed tomography as a practical tool in comparison to invasive procedures for visualization of the biliary obstruction
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Efficacy of multidetector-row computed tomography as a practical tool in comparison to invasive procedures for visualization of the biliary obstruction

机译：多排行计算机断层扫描与胆道梗阻可视化侵入性程序相比的实用工具功效

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Introduction: Recently, multidetector computed tomography (MDCT) has been introduced into clinical practice. MDCT has become the noninvasive diagnostic test of choice for detailed evaluation of biliary obstruction. Aim: the main objective of the present study was to evaluate the diagnostic value of MDCT compared to invasive procedures for detecting biliary obstruction causes. Material and Methods: Since February 2009 until May 2011 fifty biliary obstruction patients based on clinical, laboratory or ultrasonographic findings, were evaluated by Multidetector-row computed tomography. The causes of biliary obstruction, which was identified using MDCT were classified into three categories: calculus, benign stricture, and malignancy. Final diagnosis was conducted based on percutaneous transhepatic cholangiography (PTC), endoscopic retrograde cholangiopancreatography, biopsy, or surgery. The MDCT diagnosis and were compared with the final diagnosis. Results: A correct diagnosis of causes of biliaryobstruction was made on the basis of MDCT findings for 44 of the total 50 patients. Two patients with chronic pancreatitis were incorrectly diagnosed with a pancreatic head adenocarcinoma on the basis of MDCT findings. One patient with biliary stone was incorrectly diagnosed with a periampullary adenocarcinoma on the basis of MDCT findings. The Sensitivity, specificity and accuracy of MDCT in the diagnosis of causes of biliary obstruction were 94.12% and87.87% and94.6% respectively. Conclusion: Based on the findings of this study MDCT has an excellent image quality, providing valuable information about the biliary tree and other abdominal organs. The use of advanced image processing, including maximum intensity projection and multiplanar reconstruction (especially coronal or sagittal reformatted images), allows superior visualization of the biliary tree and vascular structures. Three-dimensional reconstruction images complement axial images by providing a more anatomically meaningful display of the lesion and its relationship to adjacent structures, and accurate determining the craniocaudal extent of the lesion. High accuracy, wide availability and ease of use, make the MDCT the imaging modality of choice for evaluation of biliary obstruction. © 2016 Abdolmajid Taheri, Ayoob Rostamzadeh, Alireza Gharib and Daryoush Fatehi.
机译：简介：最近，多探测器计算机断层扫描（MDCT）已被引入临床实践。 MDCT已成为对胆道梗阻进行详细评估的首选非侵入性诊断测试。目的：本研究的主要目的是评估MDCT的诊断价值，并与侵入性检查方法相比较，以检测胆道阻塞的原因。材料与方法：自2009年2月至2011年5月，对50例基于临床，实验室或超声检查结果的胆道梗阻患者进行了多排行计算机断层扫描评估。使用MDCT识别的胆道阻塞原因可分为三类：牙结石，良性狭窄和恶性肿瘤。最终诊断是基于经皮经肝胆管造影（PTC），内窥镜逆行胰胆管造影，活检或手术进行的。将MDCT诊断并与最终诊断进行比较。结果：根据MDCT结果对50例患者中的44例做出了正确的胆道阻塞原因诊断。根据MDCT的发现，两名慢性胰腺炎患者被误诊为胰头腺癌。根据MDCT结果，一名胆结石患者被误诊为壶腹周围腺癌。 MDCT诊断胆道梗阻的敏感性，特异性和准确性分别为94.12％，87.87％和94.6％。结论：基于本研究的结果，MDCT具有出色的图像质量，可提供有关胆管树和其他腹部器官的有价值的信息。包括最大强度投影和多平面重建（尤其是冠状或矢状重组格式的图像）在内的高级图像处理的使用，可以使胆管树和血管结构具有出色的可视性。三维重建图像通过提供病变的更解剖学意义及其与相邻结构的关系，并准确确定病变的颅尾范围，来补充轴向图像。高精度，广泛的可用性和易用性使MDCT成为评估胆道梗阻的首选影像学检查手段。 ©2016 Abdolmajid Taheri，Ayoob Rostamzadeh，Alireza Gharib和Daryoush Fatehi。

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