权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

3-D Visualization and Modeling of Costal Cartilages from Ultrasonography Data for Microtia Auricular Reconstruction

根据超声检查数据对肋软骨进行 3D 可视化和建模，用于小耳畸形耳廓重建

基本信息

批准号：
06671225
负责人：
KANEKO Tsuyoshi
金额：
$ 0.83万
依托单位：
Keio University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

项目摘要

(1) Development of a system for 3-D visualization and modeling of costal cartilages from ultrasonography data.Our system consists of GE Tokogawa Medical Systems RT4600 with 7.5MHz probe, linear scanner (1cm/sec), S-VHS video system, image generater on PC,Photoshop^< (R) > on Macintosh^< (R) > IIci for ROI extraction and then are converted to STL files for laserlithography using "VocEdit^< (R) > system (Inks Co.Ltd)" on Silicon Graphics IRIS Indigo^< (R) >. This system also enables 3-D visualization with liquid crystal shutter glasses (Crystal Eyes^< (R) > by Stereo Graphics Co.). The life-sized 3-D models are made using laserlithography system of 3D Systems^< (R) >.(2) Result of our 3-D visualization and modeling systemBoth 3-D imaging and medeling wes done for 4 patints and an imaging was done for one. Preopratine surgical simulation was done for these cases. Direct comparison with actual cartilages during oprtation showed that this method yieled good correlation in shape. Those models were good reproduction of actual cartilages.(3) Development of a new method of harvesting of costal cartilages With the combination of presurgical simulation using costal cartilage model and our method of assembling 3-D framework, a new method of harvesting was invented. Twelve patients was operated and in most of the cases 8th coctal cartilage was left in tact and thus the possible deformity of donor site can be avoided.

(1)开发基于超声数据的肋软骨三维可视化建模系统。我们的系统包括带有7.5 MHz探头的GE Tokogawa Medical Systems RT4600，线性扫描仪(1厘米/秒)，S-VHS视频系统，PC上的图像生成器，Macintosh^&lt；(R)&gt；IIci上的Photoshop^&lt；(R)&gt；用于提取ROI，然后使用Silicon Graphics IRIS Indigo&lt；(R)&GT；上的“vocEdit^&lt；(R)&gt；System(Inks Co.Ltd.)”转换为STL文件进行激光光刻。该系统还可以使用液晶快门眼镜(由Stereo Graphics Co.生产的Crystal Eyes^&lt；(R)&gt；)实现3D可视化。真人大小的三维模型是使用3D Systems的激光光刻系统制作的。(2)我们的三维可视化和建模系统的结果是对4个模板进行了三维成像和建模，其中一个模板进行了成像。对这些病例进行了普罗匹林手术模拟。与手术中实际软骨的直接比较表明，该方法在形状上具有良好的相关性。建立了一种新的肋软骨采集方法，将术前模拟肋软骨模型和我们的三维支架组装方法相结合，发明了一种新的肋软骨采集方法。手术治疗12例，大部分保留8号软骨，避免了供区可能出现的畸形。