Abstract: Conventional laparoscopic is incapable of visualizing internal structures located beneath the mesenteric. Augmented reality (AR) techniques can overlay the anatomy of vascular on laparoscopic images and assist surgeons in performing operation. This study proposes an image navigation system that utilizes preoperative CT images and combines infrared binocular optical tracking devices to locate laparoscopes and patients, achieving an AR navigation system on traditional imaging devices. The system underwent rigorous testing within our novel prosthetic design, which closely mimics the mesenteric architecture. Subsequent to this, comprehensive animal studies were executed to achieve preclinical validation of the system’s efficacy and safety. The average target registration error of fiducials and angles was 5.44 mm and 3.31°, respectively. The average time to identify the AMA was 219 ± 208 seconds, with a vascular bifurcation point error(VBPE) of 8.15 ± 1.29mm. The user study showed good surgical performance of the system. Both the ex and in vivo experiments indicated that navigation system showed promise and had the potential to be highly useful in laparoscopic colectomy.
Loading