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Utility of Thin-Slice CT in Identifying Hyperdense Artery Sign. 75 year old male with acute onset right sided hemiparesis and aphasia. A. Non-contrast CT with 5mm slice thickness shows no evidence of hyperdense artery sign on the left (arrow). B. 0.5mm slice thickness reconstruction shows a hyperdense left MCA (arrow). C. The occlusion was confirmed on CT angiography (arrow).
