Durrani A F, Preminger G M
Research Fellow, Division of Urologic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC.
Surg Technol Int. 1994;3:141-7.
Video imaging technology has significantly enhanced the performance of minimally invasive surgical procedures. However, a major limiting factor for the endoscopic surgeon is to work in a 3-dimensional field while viewing a two-dimensional video image. Advances in electronic video imaging have resulted in satisfactory image quality yet the lack of depth perception with standard 2-dimensional video system results in the surgeon having to rely on indirect evidence to assess the third dimension. To gauge depth, one may have to rely on touching the tissues with endoscopic instruments or estimate the relative movement of the instruments in relation to the intra-abdominal organs. These maneuvers result in a reduction in the speed of surgery and may cause unnecessary tissue trauma. Recently a number of manufacturers have developed three-dimensional (3-D) video systems which significantly improve visualization and enhance the ability of the surgeon to perform delicate endoscopic dissection and suturing. These 3-D video systems may also improve the education of surgeons-in-training as they would have a better understanding of 3-dimensional anatomy during laparoscopic surgery.
视频成像技术显著提高了微创手术的性能。然而，对于内镜外科医生来说，一个主要的限制因素是在观看二维视频图像的同时在三维视野中工作。电子视频成像技术的进步带来了令人满意的图像质量，但标准二维视频系统缺乏深度感知，导致外科医生不得不依靠间接证据来评估第三维度。为了测量深度，可能不得不依靠用内镜器械触摸组织，或者估计器械相对于腹腔内器官的相对运动。这些操作会降低手术速度，并可能造成不必要的组织创伤。最近，一些制造商开发了三维（3-D）视频系统，显著改善了可视化效果，增强了外科医生进行精细内镜解剖和缝合的能力。这些3-D视频系统也可能改善对外科住院医生的培训，因为他们在腹腔镜手术期间能更好地理解三维解剖结构。
