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. 2017 Mar 27;17(1):13–20. doi: 10.2463/mrms.mp.2016-0074

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© 2017 Japanese Society for Magnetic Resonance in Medicine

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Fig. 2. — Comparison of rest cerebral blood flow (CBF) (A), cerebral vascular reserve (CVR) (B) and both combined (C) in the territory of middle cerebral artery (MCA) between the native and non-native, retrograde, flow in the affected-side the ophthalmic artery (OphA). Rest cerebral blood flow to normal control (RCBF_MCA), the ratio of rest CBF in the affected-side MCA territory to the default value obtained from healthy participants; CVR_MCA, The cerebral vascular reserve in the affected-side MCA territory calculated by dividing (stress CBF – rest CBF) by the rest CBF. High-risk patients were defined based on the previous large cohort study (RCBF_MCA < 80% and CVR_MCA < 10%).