Journal of Computer Aided Surgery Vol.8 No.4

J JSCAS vol.8, No.4, pp.401-407, 2006

低侵襲手術支援システムによる日本―韓国間遠隔手術実験
A Remote Surgery Experiment between Japan-Korea using the Minimally Invasive Surgical System

荒田純平、高橋弘樹、割澤伸一、小西晃造、田上和夫、家入里志、清水周次、中島直樹、岡村耕二、 Young Soo Kim、Sung Min Kim、Joon-Soo Hahm、橋爪誠、光石衛

Jumpei Arata, Hiroki Takahashi, Shin’ichi Warisawa, Kozo Konishi, Kazuo, Tanoue, Satoshi Ieiri, Shuji Shimizu, Naoki Nakashima, Koji Okamura, Young Soo Kim, Sung Min Kim, Joon-Soo Hahm, Makoto Hashizume, Mamoru Mitsuishi

Abstract
In this paper, a remote surgery experiment, which was conducted between Japan and Korea by using the developed minimally surgical system is described. A research Internet, APII (Asia-Pacific Information Infrastructure), which consists of an optical submarine cable network, KJCN (Korea-Japan Cable Network) was used as an information transmission channel. In the experiment, a laparoscopic cholecystectomy was successfully performed on a pig. The network time-delays of robot and images were 6.5 ms and 435 ms respectively.

Key words
Remote surgery, Surgical robot and Minimally invasive surgical system.

J JSCAS vol.8, No.4, pp.409-415, 2006

心表面冠動脈運動の定量的解析～拍動下心臓手術のための心表面運動三次元デジタル解析システムの開発～
Three-Dimensional Quantification of Cardiac Surface Motion; A Newly Developed 3-Dimensional Digital Motion-Capture and Reconstruction System for Beating Heart Surgery

渡辺俊樹、織田村元樹、岡田昌史、中村仁彦、尾股定夫、横山斉

Toshiki Watanabe, MD, Motoki Odamura, PhD, Masahumi Okada, PhD, Yoshihiko Nakamura, PhD, Sadao Omata, PhD , Hitoshi Yokoyama, MD

Abstract
OBJECTIVE: This study was aimed to characterize quantitatively the three regional cardiac surface motions before and after stabilization using a stabilizer (Octopus 4.3, Medtronics Inc.) by our newly developed“ 3-dimensional digital motion-capture and reconstruction system” in an animal experiment setting. METHODS: Ten pigs underwent full sternotomy. Three tiny metallic markers (diameter 2 mm) coated with a reflective material were attached on three regional cardiac surfaces (LAD, RCA and LCX). These makers were captured by two high-speed digital video cameras (955 frames/ s) as 2-dimensional data, and reconstructed to 3-dimensional data points. RESULTS: Virtual 3-dimensional images of the beating heart surface were successfully reconstructed and details of the three regional cardiac surfaces were obtained. CONCLUSIONS: This system is useful for a precise 3-D quantification of the heart surface movement, and development of a better stabilizer for beating heart surgery.

Key words
Beating heart surgery, Cardiac surface motion, Stabilizer, 3-dimensional analysis, Motion capture.

J JSCAS vol.8, No.4, pp.417-424, 2006

胸腹部大動脈置換術用ナビゲーションシステムの臨床応用
Clinical Application of a Surgical Navigation System for Thoracoabdominal Aortic Replacement

植松美幸、青見茂之、鈴川浩一、西井規子、中村亮一、村垣善浩、伊関洋、上杉繁、梅津光生

Miyuki Uematsu, Shigeyuki Aomi, Hirokazu Suzukawa, Noriko Nishii, Ryoichi Nakamura, Yoshihiro Muragaki, Hiroshi Iseki, Shigeru Wesugi, Mitsuo Umezu

Abstract
We have been developing a surgical navigation system for the graft replacement of thoracoabdominal aortic aneurysm. The system supports surgeons to detect the most important intercostal artery among the amount of cavities of the aorta. The world’s first clinical trial was performed in July 2006 at Tokyo Women’s Medical University. Up to now, the system has been utilized for nine clinical cases. For all cases, the system was assisted for surgeon.s decision-making. Good clinical course without paraplegia. This system is highly effective for surgeons and patients to perform the safety and assure surgery.

Keywords
Aortic root replacement, Adamkiewicz artery, Surgical navigation system.