2002 Fiscal Year Final Research Report Summary

Development of combined system between open MR and Xray angiography

Research Project

Project/Area Number	12670863
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Radiation science
Research Institution	The University of Tokyo
Principal Investigator	AOKI Shigeki The University of Tokyo, Faculty of Medicine, Associated Professor, 医学部附属病院, 助教授 (80222470)
Co-Investigator(Kenkyū-buntansha)	ARAKI Takuji The University of Yamanashi, Faculty of Medicine, Research Associate, 医学部附属病院, 助手 (60252045)
Project Period (FY)	2000 – 2002
Keywords	Brain / MRI / Angiography
Research Abstract	We developed an open MR-X ray fluoroscopic combination system since 2001. It consists of a 0.3T open MR imager (Hitachi) with rotating bed, and a C-arm X-ray fluoroscopic system with DSA capability. The rotating bed enables us to examine both MRI and X-ray fluoroscopy with the same position of the patient against the bed. After fundamental feasibility studies and permission from institutional review board, we used this system in combined MR-Xray IVR for head and neck pathology successfully. Intra-arterially injected contrast-enhanced MR angiography (IA-MRDSA) was also performed clinically. We also developed single-shot diffusion-weighted images and perfusion MR on 0.3T open MR system. They were feasible and could detect subacute infarction.