Preoperative modeling of costal cartilage for the auricular reconstruction of microtia
Preoperative modeling of costal cartilage for the auricular reconstruction of microtia
复制标题
小耳畸形耳廓重建术前肋软骨建模
DOI：
10.1097/prs.0b013e31821744eb
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发表时间：
2011
影响因子：
3.6
通讯作者：
Kishi K
中科院分区：
文献类型：
--
作者：
Miyamoto J;Miyamoto S;Nagasao T;Kasai S;Kishi K
全耳再造术中存在各种障碍需要克服，例如关于耳位置的决定、皮肤包膜的创建、残余物的处理、三维框架的制造、多阶段手术的透视图等。最大限度救济框架的构建是这些问题中最困难的。因此，术前排练进行准确的肋软骨模型将有利于外科医生。在这项研究中，我们建立了一个系统的三维建模肋软骨术前计算机断层扫描数据与逆向工程技术。1对两例病例进行了肋软骨建模。使用64层多探测器行计算机断层扫描，轴向切片在1.0毫米的间隔用于建模。使用MIMICS 13.1（Materialise Interactive Medical Image Control System; Materialise，Leuven，Belgium）进行分割和体积绘制。因为肋软骨的计算机断层摄影值接近于周围组织的计算机断层摄影值，所以不可能进行诸如皮肤和骨2、3的自动分割。因此，在轴向切片中，手动执行分割。这些数据被转换为立体光刻数据。
There are various obstacles to be overcome in total auricular reconstruction, such as the decision regarding ear position, creation of the skin envelope, handling of remnants, fabrication of a three-dimensional framework, perspective view for multistage operations, and others. The construction of a maximum relief framework is the most difficult of these problems. Preoperative rehearsal performed with an accurate costal cartilage model would therefore be advantageous for surgeons. In this study, we established a system for three-dimensional modeling of costal cartilage from preoperative computed tomographic data with reverse-engineering techniques. 1Costal cartilage modeling was performed for two cases. Using 64-slice multidetector-row computed tomographic scanning, axial slices at 1.0-mm intervals were used for modeling. Segmentation and volume rendering was performed with MIMICS 13.1 (Materialise Interactive Medical Image Control System; Materialise, Leuven, Belgium). Because the computed tomographic value of costal cartilage is close to that of the surrounding tissues, automatic segmentation such as skin and bone 2, 3 is not possible. Therefore, in axial slices, segmentation was performed manually. These data were converted to stereolithographic data.