Figure 3From: Extravasation into brain and subsequent spread beyond the ischemic core of a magnetic resonance contrast agent following a step-down infusion protocol in acute cerebral ischemiaTemporally acquired 10 post-contrast Look-Locker (L-L) T 1 -weighted images (T 1 WI) obtained over about 25Â min following a bolus injection of Gd-DTPA. The images demonstrate a region of enhancement that increased in size and signal intensity over the first 5 scans and then decreased over time. The color scale bar on top represents lowest to highest values in arbitrary units from left to right (black to white).Back to article page