2003 Fiscal Year Final Research Report Summary

Fundamental examination to evaluate intravascular hemodynamics by MR imaging

Research Project

Project/Area Number	13670945
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Radiation science
Research Institution	Kagawa University
Principal Investigator	OHKAWA Motoomi Kagawa University, Faculty of Medicine, Professor, 医学部, 教授 (70028629)
Co-Investigator(Kenkyū-buntansha)	NAKANO Satoru Kagawa University, Faculty of Medicine, Staff, 医学部, 助手 (60311825)
Project Period (FY)	2001 – 2003
Keywords	MR Imaging / Blood Flow / Carotid artery / Turbulent Flow / Vortical Flow
Research Abstract	It is known that there is a zone of recirculation and zone of stasis in the blood flow of the origin of the arteria carotis interna. We evaluated whether these hemodynamic changes were observable by MRI. It was examined with time-of-flight (TOF), hydrography, and phase contrast (PC) and tagging as a scanning sequence of the MRI. TOF showed eddy flow but distortion of the image could not be ignored. With hydrography the existence of a zone of stasis could be observed. PC and tagging could observe the direction and speed of the blood flow in the intravascular small space. It is considered that related evaluation between the vascular lesion and the hemodynamics will be possible in the future with the use of additional examinations.

(2 results)