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Intraoperative Brain Surface Blood Flow Monitoring Using IRIS V Thermographic Imaging System in Patients with Moyamoya Disease Atsuhiro NAKAGAWA 1,2 , Miki FUJIMURA 1 , Tomohiro OHKI 3 , Hideaki SUZUKI 1 , Kazuyoshi TAKAYAMA 4 , Teiji TOMINAGA 1 1Department of Neurosurgery,Tohoku University Graduate School of Medicine 2Department of Neurosurgery,Sendai City Hospital 3Interdisciplinary Shock Wave Research Laboratory,Institute of Fluid Science,Tohoku University 4Nanomedicine,Tohoku University Biomedical Engineering Research Organization Keyword: dynamic infrared imaging , infrared camera , intraoperative monitoring , thermal artery imaging , focal hyperperfusion pp.1017-1025
Published Date 2006/10/1
DOI https://doi.org/10.11477/mf.1436100291

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 Surgical revascularization for moyamoya disease prevents cerebral ischemic attacks by improving CBF. But little is known about the changes of intraoperative cerebral hemodynamics and its effect on postoperative neurological status including symptomatic cerebral hyperperfusion. To address this issue,we applied a novel infrared camera system (IRIS-V thermographic system) for real-time,visual monitoring of surface CBF during surgery in patients with moyamoya disease. Seven patients (8 sides,male:female= 3:4,7-62 years old) with moyamoya disease were included in the study. After STA-MCA anastomosis,STA were occluded transiently and recanalized,and whole sequence was recorded by IRIS-V system. Correlation between clinical,radiological findings and infrared imaging were investigated. Patency of bypass was confirmed by this camera during surgery in all cases. The intraoperative imaging patterns were divided into two groups. Group A: Change of brain surface color (++) (3 cases). Group B: Change of brain surface color (-) (4 cases). Transient symptomatic hyperperfusion occurred in all patients in Group A,whereas all patients in Group B showed non-symptomatic transient focal hyperperfusion on SPECT. No patient suffered permanent neurological deterioration compared to preoperative status. Characteristic pattern of the intraoperative cerebral hemodynamics as delineated by IRIS-V could be the optimal predictor for postoperative transient symptomatic hyperperfusion after direct bypass in patients with moyamoya disease.


Copyright © 2006, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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