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Error Analysis of a Quantitative Cerebral Blood Flow Measurement Using H215O Autoradiography and Positron Emission Tomography, with Respect to the Dispersion of the Input Function
1986
Journal of Cerebral Blood Flow and Metabolism
The effect of the inaccuracy of the input func tion on CBF measured by the H2150 autoradiographic method was investigated. In H2150 autoradiography the measured input function usually includes a larger disper sion than the true input function, as well as the absolute time axis having been already lost. The time constant of the external dispersion that occurred in our continuous sampling system was evaluated as 10-12 s when the dis persion function was approximated by a monoexponen tial
doi:10.1038/jcbfm.1986.99
pmid:3489723
fatcat:u7r4m7tj2vgxra3lnnsebcqtna