7T Angiography (image) University of Pittsburgh Share Print E-Mail Caption 7T angiography in late life depression patients with the "Tic-Tac-Toe" RF coil system and without the use of invasive contrast agents. While not feasible at 3T, 7T super high resolution acquisitions (voxel size is 0.2 mm in all directions) significantly improve the conspicuity of small arterioles. Credit University of Pittsburgh Radiofrequency Research Facility 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.