Cerebral Arterial Blood R2* & Volume Measurements During Stimulation

Tae Kim¹, Soeng-Gi Kim¹

cerebral arterial blood R₂^* and volume, and their changes during stimulation was measured by arterial spin labeling technique with a short labeling duration of 700 ms. R₂^* of arterial blood (53.5 15.3 s^-1) is larger than tissue R₂^* (37.1 7.1 s^-1) at 9.4 T, and the R₂^* change in arterial blood is not significant during stimulation. Arterial blood volume increased from 0.64 0.23 ml/100g to 0.93 0.23 ml/100g during stimulation.