MURAGAKI Yoshihiro    Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine    Position   Visiting Professor
Language	English
Title	A surgical navigation system for aortic vascular surgery: A practical approach
Conference	35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Presentation Type	Speech
Publisher and common publisher	◎UEMATSU Miyuki, ICHIHASHI Takuya, ASATO Kenya, NAKAOKA Ryusuke, MATSUOKA Atsuko, AOMI Shigeyuki, IIMURA Hiroshi, SUZUKI Takashi, MURAGAKI Yoshihiro, ISEKI Hiroshi
Date	2013/07
Venue (city and name of the country)	Osaka, Japan
Society abstract	Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE 5327-5330
Summary	Abstract In aortic vascular surgery, a navigation system must represent the anatomical map of individual patient in order to detect the important artery. To provide a proper fit for positions along the dorsoventral axis, the spinous process was added to a currently used anatomical point set consisting of four anterior body landmarks. In addition, we attempted to reduce the registration error by compensating for alignment errors resulting from variations in tissue thickness at each landmark. The alignment values were examined using a human phantom consisting of a skeleton model with subcutaneous tissue in the semilateral position. Using this method, a phantom simulation and five clinical trials were performed. Target errors were evaluated at the orifice of the intercostal artery. In the phantom simulation, the error at the target point was 4.1 ± 2.7 mm. However, for one patient undergoing thoracoabdominal aortic aneurysm replacement surgery, the target error was 8.0 mm using the proposed method.