皮肤扩张术计算机辅助测量与设计系统的研究与应用

Computer-aided tissue expansion 3D profilometry and surgery planning system

目的 探索与评价计算机辅助三维形貌测量技术在皮肤扩张术方面的应用。方法 应用自行开发的皮肤扩张术计算机辅助三维形貌测量与设计系统 ,利用近景立体摄影技术对临床病例的扩张部位进行三维数据采集与处理 ,得到三维数字模型 ,并计算表面积等 ,与手工测量结果进行比较验证。利用该软件计算任意曲线长度和任意区域面积功能 ,辅助手术设计。结果 计算机测量结果误差小于 5 % ,具有很高的精确性和可重复性 ;自 1999年 3月起在临床初步应用 11例共16个扩张部位 ,效果较为满意。结论 该系统可为皮肤扩张术扩张皮瓣移转的时机选择、切口设计、结果预测等提供参考依据。

Objective\ To develop and evaluate the computer aided system in measurement of expanded skin and preoperative planning. Methods\ Stereophotogrammetric technique was used to gain the 3D image pairs, from which the contours of the expanded sites were restored. The 3D surface data were provided to the specially developed“computer aided tissue expansion 3D profilometry and surgery planning system', to calculate the expansion area and help the preoperative design. Results\ The system has been applied clinically in 16 tissue expansion sites of 11 patients with fairly good results since March 1999. Compared with the traditional method, this system is accurate, repeatable and feasible. Conclusion\ This technique is useful and promising for improving the operation of tissue expansion.\;