3-D Rendering of Intraventricular Blood Removal (video) University of Chicago Medical Center Share Print E-Mail Loading video... Caption Intraventricular blood (red) is cleared from the ventricles by administration of tPA and a brain catheter (yellow). Images are 3-D renders of CT scans from a CLEAR III subject. Credit CLEAR III Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.