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The cerebral venous oxygen saturation in hypoxic regions measured by different resolutions at admission and discharge of patients with acute ischemic stroke (5 × 5 ROI size: 3.59 × 3.59 × 1.6 mm3; 10 × 10 ROI size: 7.18 × 7.18 × 1.6 mm3; 20 × 20 ROI size: 14.36 × 14.36 × 1.6 mm3).
