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Intraoperative 3-D image acquisition and augmented reality for laparoscopic/thoracoscopic surgical navigation system

用于腹腔镜/胸腔镜手术导航系统的术中 3D 图像采集和增强现实

基本信息

批准号：
16300172
负责人：
KAKEJI Yoshihiro
金额：
$ 9.93万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2007
项目状态：
已结题

项目摘要

Intraoperative 3-D image acquisition and augmented reality for laparoscopic surgical navigation system1.Intraoperative tracker calibration using a magneto-optic hybrid tracker for 3-D ultrasound-based navigation in laparoscopic surgery (2004)The accuracy of magnetic trackers is affected by magnetic field distortion that results from the close proximity of metal objects and electronic equipment, which is unavoidable in the operating room. We developed a calibration method for intraoperative magnetic distortion that can be applied to laparoscopic 3-D US data acquisition.2.In vivo experiment (2004)We evaluated the accuracy of laparoscopic 3-D US reconstruction by animal experiments. Using a pig, calibration data and 3-D US volumes were acquired under laparoscopic control. A wedge-shaped landmark attached to the distal end of the holder was placed dorsal to the pig liver, and the landmark holder was fixed by the endoscopic holder. The positional error caused by magnetic distortion was redu … More ced to 2.9 mm.3.Estimation of intraoperative lung deformation for computer assisted thoracoscopic surgery (2005〜2007)In the thoracoscopic surgery, predicting the cancer position based on intraoperative thoracoscopic images and preoperative CT images often becomes a difficult task because the lung collapse causes significantly large deformation of the lung. We propose a CT-based thoracoscopic surgical navigation system, involving the intraoperative correction of large large deformation. Animal and clinical experiments were performed to evaluate the prediction accuracy of the cancer position.4.Sentinel node navigation system (2005〜2007)After the gastric submucosal injection of contrast enhance agent (Super-Paramagnetic Iron Oxide: SPIO) for magnetic resonance imaging (MRI), optimal conditions were investigated for sentinel node navigation system for gastric cancer.5.Navigation system for ureter in rectosigmoid resection (2006〜2007)To avoid the intraoperative injury of ureters, we have developed the navigation system for ureters which were superimposed onto live endoscopic images intraoperatively. Less

腹腔镜手术导航系统的术中 3-D 图像采集和增强现实1.腹腔镜手术中使用磁光混合跟踪器进行基于 3-D 超声的导航的术中跟踪器校准（2004）磁跟踪器的精度受到金属物体和电子设备靠近导致的磁场失真的影响，这在手术中是不可避免的。手术室。我们开发了一种术中磁畸变的校准方法，可应用于腹腔镜3-D US数据采集。2.体内实验（2004）我们通过动物实验评估了腹腔镜3-D US重建的准确性。使用猪，在腹腔镜控制下获取校准数据和 3-D US 体积。将附着在支架远端的楔形标志放置在猪肝背侧，并且通过内窥镜支架固定标志支架。磁畸变引起的位置误差减少到2.9 mm。3.计算机辅助胸腔镜手术术中肺变形的估计（2005〜2007）在胸腔镜手术中，由于肺塌陷导致肺明显较大变形，根据术中胸腔镜图像和术前CT图像预测癌症位置往往成为一项艰巨的任务。我们提出了一种基于CT的胸腔镜手术导航系统，涉及术中大变形的矫正。通过动物实验和临床实验评价癌位预测的准确性。4.前哨淋巴结导航系统(2005〜2007)胃粘膜下注射造影增强剂(超顺磁性氧化铁：SPIO)进行磁共振成像(MRI)后，探讨胃癌前哨淋巴结导航系统的最佳条件。5.输尿管癌前哨导航系统直肠乙状结肠切除术（2006〜2007）为了避免术中损伤输尿管，我们开发了输尿管导航系统，在术中叠加到实时内窥镜图像上。较少的