数字医学技术在肝胆管结石诊治中的应用价值

目的 研究数字化医学技术在肝胆管结石诊断及治疗中的应用价值.方法 收集2008年2月至9月南方医科大学珠江医院肝胆一科收治的14例肝胆管结石患者的64排螺旋CT扫描数据,其中男性3例,女性11例,年龄37～65岁,平均48岁.将收集的数据导入医学图像处理软件进行程序分割、三维重建.重建后的模型再导人到FreeForm Modeling System,并利用自主研发的仿真器械进行仿真手术研究.术前根据三维重建及仿真手术的结果选择合适的手术方式,并与术中所见相比较,术后通过逆行T管造影检查结石是否有残余,评价三维重建及仿真手术的价值.结果 14例肝胆管结石三维重建模型中显示左肝胆管结石7例,右肝胆管结石2例,左右肝胆管结石5例.其中6例合并肝外胆管结石;胆管绝对狭窄6例,相对狭窄8例.三维模型诊断与临床诊断一致.术前仿真多种手术方式,仿真手术过程使用的仿真器械有力反馈的感觉.结论 数字医学技术有助于诊断结石的分布、胆道狭窄部位及程度.仿真手术可指导手术方式的选择,从而降低手术风险.

Study on the applied value of digital medical technology in diagnosis and treatment of the hepatolithiasis

Objective To study the value of digital medical technology in diagnosis and treatment of the hepatolithiasis. Methods 64-slice spiral computer tomography (CT) scan data of 14 cases (11 female, 3 male; median age, 48 years) with hepatolithiasis admitted from February to September 2008 were collected. The data were imported into medical image proceeding system (MIPS) for sequence segmenting and three-dimensional (3D) reconstruction. The reconstructed models were imported into FreeForm Modeling System for performing simulation surgery with simulation surgical instruments. According to the results of 3D reconstruction and simulation surgery, reasonable operation strategies were chosen. Finally, the value of clinical application of simulation surgery was evaluated according to the findings of clinical operation on hepatolithiasis patients and postoperative T-tube angiography. Results The 3D reconstructed models of 14 cases with hepatolithiasis revealed 7 cases of left liver hepatolithiasis,2 cases of right liver hepatolithiasis,5 cases of bilateral hepatolithiasis, including 6 cases of hepatolithiasis with common bile duct calculi ,6 cases of biliary system models with absolute stricture, 8 cases with relative stricture. The results were of agreement with clinical diagnosis. A variety of operation plannings were simulated before operation. Simulation equipment used in process of simulation surgery was a powerful sense of feedback. Conclusions Digital medical technology is helpful to understand the calculi distribution, bile ducts stricture and deformity. Through preoperative training, simulation surgery are able to guide for choosing operative strategies. It reduces the operation risks.