https://scholars.lib.ntu.edu.tw/handle/123456789/611846
標題: | Comment on 'Estimating a modified Grubb's exponent in healthy human brains with near infrared spectroscopy and transcranial Doppler' | 作者: | Boas D.A. Payne S.J. STEPHEN JOHN PAYNE |
關鍵字: | Blood;Blood vessels;Flow velocity;Hemodynamics;Infrared devices;Metabolism;Near infrared spectroscopy;Oxygen;Blood flow;Blood volumes;Cerebral blood flow;Cerebral blood flow velocities;Cerebral blood volume;Cerebral metabolic rate of oxygen;Functional magnetic resonance imaging;Grubb exponent;Metabolic rates;Transcranial Doppler;Magnetic resonance imaging;oxygen;article;brain blood flow;brain metabolism;Doppler echography;functional magnetic resonance imaging;human;near infrared spectroscopy;nuclear magnetic resonance imaging;priority journal | 公開日期: | 2009 | 卷: | 30 | 期: | 10 | 起(迄)頁: | L9-L11 | 來源出版物: | Physiological Measurement | 摘要: | The relationship between cerebral blood volume (CBV) and blood flow (CBF) has gained widespread interest because of its utility in using functional magnetic resonance imaging and optical imaging methods to estimate the cerebral metabolic rate of oxygen (CMRO2). A recent paper by Leung et al (2009 Physiol. Meas. 30 1-12) nicely presents measurements relating CBV to cerebral blood flow velocity (CBFV) as measured by near infrared spectroscopy and transcranial Doppler, respectively. They suggest that this relationship cannot be inverted to estimate CBF (or CBFV) from CBV, and that doing so to estimate CMRO2 is inappropriate. We argue that these data, and other related published data, do permit the estimation of CBF from CBV and thus enable CMRO2 to be estimated when only measures of CBV and deoxygenated hemoglobin are available. ? 2009 Institute of Physics and Engineering in Medicine. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-70350432960&doi=10.1088%2f0967-3334%2f30%2f10%2fL01&partnerID=40&md5=5646f09e83cd0e15577a24333691b8cb https://scholars.lib.ntu.edu.tw/handle/123456789/611846 |
DOI: | 10.1088/0967-3334/30/10/L01 |
顯示於: | 應用力學研究所 |
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