Fig. 2. Changes in cerebral blood flow (CBF) across bilateral anterior and posterior circulations before and after a 12-h –6° head-down tilt (HDT) bed rest (BR). (IMAGE)

Beijing Institute of Technology Press Co., Ltd

Fig. 2. Changes in cerebral blood flow (CBF) across bilateral anterior and posterior circulations before and after a 12-h –6° head-down tilt (HDT) bed rest (BR).

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Fig. 2. Changes in cerebral blood flow (CBF) across bilateral anterior and posterior circulations before and after a 12-h –6° head-down tilt (HDT) bed rest (BR). The mean CBF measured by 3-dimensional pseudocontinuous arterial spin labeling of magnetic resonance imaging technology decreased significantly after 12-h HDT across all 4 vascular territories. A, anterior; P, posterior; L, left; R, right. ***P ≤ 0.001; ****P ≤ 0.0001.

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