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find Author "张俊安" 2 results
  • Three-Dimensional Classification of Portal Venous System and Its Relationship with The Distribution of Left-Sided Colorectal Liver Metastasis

    目的 分析门静脉系统三维解剖结构及其与左侧结直肠癌肝转移灶分布的关系。方法 选取2009年11月至2012年9月期间笔者所在医院行上腹部CT检查的181 例患者作为研究对象,观察其CT影像学资料并重建门静脉系统三维图像,进行门静脉系统解剖结构分型,并分析其中61例左侧结直肠癌伴肝转移患者的CT或MR二维图像及其临床资料,记录肿瘤原发部位,观察肝转移病灶的位置、数目以及门静脉系统的解剖类型。结果 肠系膜上静脉(SMV)和脾静脉(SV)汇合成门静脉主干(MPV),在肝门处分为门静脉右支(RPV)和门静脉左支(LPV) 进入肝脏(A型)者占83.98% (152/181),其中肠系膜下静脉(IMV)汇入SMV (A1亚型) 65例 (35.91%),IMV汇入SV (A2亚型)64例(35.36%),IMV汇入门静脉角(A3亚型) 23例(12.71%);其他变异(B、C和D型)者29例,占16.02%。61例左侧结直肠癌伴肝转移患者中,IMV汇入门静脉角者12例,其肝转移灶均分布在肝左右叶(100%);而IMV汇入SMV或SV者49例,其肝转移灶分布在肝左右叶者30例(61.22%),分布在肝左或右叶者19例(38.78%),两种IMV汇入门静脉类型其肝转移灶分布构成比的差异有统计学意义(P<0.05)。在39例IMV汇入SV的患者中,肝内门静脉为2支型(A2亚型)者28例,其肝转移灶分布在肝左右叶者21例(75.00%),分布在肝左或右叶者7例(25.00%);而肝内门静脉为3支型(B2+C2亚型)的11例中,肝转移灶分布在肝左右叶者3例(27.27%),分布在肝左或右叶者8例(72.73%),两者的肝转移灶分布构成比的差异也有统计学意义(P<0.01)。结论 门静脉系统的解剖结构复杂多变,与左侧结直肠癌肝转移病灶的分布密切相关。

    Release date:2016-09-08 10:24 Export PDF Favorites Scan
  • Application of 3D Printing Technology in Hepatic Resection

    ObjectiveTo explore clinical value of 3D printing technology in hepatic resection. MethodsFrom March to May 2015, multidetector-row computed tomography images of 12 patients, including hepatic carcinoma in 6, hepatic hemangioma in 3, intra-and extra-hepatic bile duct stones in 3, were used for 3D hepatic reconstruction, the final segmentation data were converted to stereolithography files for 3D printing, 50%-70% scale of the full-sized liver model was fabricated by polylactic acid to be used to analyze its anatomical structure, design surgical planning, select the optimal operative route and simulate hepatic resection. Hepatic resection was performed by referring to the 3D printing model. ResultsThe hepatic resections were successful without complications by referring to the preoperative 3D printing models, the average blood loss was 340(100-1000) mL. ConclusionHepatic resection is more accurate and safe by 3D printing technology.

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