Published in Blood Weekly, April 10th, 2003
According to recent research from England, "Velocity-driven adiabatic fast passage (AFP) is commonly employed for perfusion imaging by continuous arterial spin labeling (CASL). The degree of inversion of protons in blood determines the sensitivity of CASL to perfusion."
"For this study, a computer model of the modified Bloch equations was developed to establish the optimum conditions for velocity-driven AFP.
"Natural variations in blood velocity over the course of the cardiac cycle were found to result in significant variations in the degree of inversion. ...
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