Screenshot of CAVI Measurement (IMAGE) RUDN University Caption Except for the index itself, the system also calculates the vascular age and ankle-brachial index (the ratio between blood pressure on the ankle and the arm) for the right and left sides. Therefore this method gives additional information about the state of the vascular wall. Credit Courtesy of Elena Troitskaya Usage Restrictions None License Licensed content 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.