Fig. 1: Difference in cerebral blood flow after 1 h and 21 h of the intervention. | npj Microgravity

Fig. 1: Difference in cerebral blood flow after 1 h and 21 h of the intervention.

From: External to internal cranial perfusion shifts during simulated weightlessness: Results from a randomized cross-over trial

Fig. 1

The numbers in panel a and b indicate the difference in flow in each respective position in comparison to the baseline data. The external system comprises the external carotid (red). The internal system includes the internal carotid artery (red) and jugular vein (blue). Algebraic signs refer to the physiological flow direction of each vessel. Figure panels c and d show anatomical MRI images of one of the subjects on the first interventional day in each of the respective body positions. †P < 0.05; *P < 0.001 (linear mixed effect models were used for statistical analysis). Panel a and b created with BioRender.com).

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