E Bainville | PubMed Health

PubMed1995

Computer generated visual assistance during retroperitoneoscopy.

In this paper we present a system of computer assisted surgery, the function of which is to enhance the real time feedback between the patient's body, the surgical tools and the surgeon. We show using such a system during some surgical operations--in our case, retroperitoneoscopy. After giving the requirements for such a system, we describe the components currently used in our experiments. We detail the different problems and our current solutions; photographs of an experiment carried out on a cadaver and of classical operations are shown in this paper.

Computer Simulation↗

PubMed1995

[Place of computer-assisted surgery in the evaluation of lymphatics metastases in pelvic cancers. Exploration by retroperitoneoscopy].

Extraperitoneal pelvioscopy is a surgical endoscopy without insufflation which enables exploration of the extraperitoneal space in order to obtain biopsy specimens of adenopathies and tumors. 189 extraperitoneal endoscopy have been performed since 1976. When made through an iliac approach, the Extraperitoneal Endoscopy explores iliac and pelvic lymph nodes. It is an indication when checking the extension of uterine, prostatic and bladder cancers. Recently, a system of computerized assistance has been added to the initial method. Its aim is to guide the movements of the surgical tool when the indication is difficult: overweight patient, small tumors, risky tumoral environment. The basic principle is to show recalculated RMI or CT scan sections of the patient during the intervention, on which appear in real time the positions of the endoscope and that of the target to biopsy. The authors describe the technical ways of the method, the system of tridimensional localisation included in the operating room and the sort of interface given to the surgeon. In the future, the realisation of a simulator of intervention will allow diffusion and teaching of this intervention.

Equipment Design↗