Meeting Banner
Abstract #0689

Multi-vendor validation and reproducibility of 4D flow MRI using 4-fold parallel imaging acceleration with and without respiratory gating

Johannes Töger1, Jelena Bock1, Sebastian Bidhult1,2, Karin Markenroth Bloch3,4, Mikael Kanski1, Håkan Arheden1, Frederik Testud5, Andreas Greiser6, Einar Heiberg1,2, and Marcus Carlsson1

1Clinical Physiology, Department of Clinical Sciences, Skane University Hospital, Lund University, Lund, Sweden, 2Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden, 3Lund University Bioimaging Center, Lund University, Lund, Sweden, 4Philips Healthcare, Lund, Sweden, 5Siemens Healthcare AB, Malmö, Sweden, 6Siemens Healthcare GmbH, Erlangen, Germany

4D-flow sequences on two 1.5T scanners from different vendors (Philips Achieva dStream and Siemens MAGNETOM Aera) were validated head-to-head. 4D-flow in a pulsatile flow phantom showed high accuracy and precision compared to reference laser particle image velocimetry for both scanners. 2D-flows in ascending and descending aorta and pulmonary trunk were compared to 57 4D-flow scans in 10 subjects. Lower bias for flow volumes was found on Aera (-4.7±12.5%) compared to Achieva (-18.0±20.1%). Kinetic energy showed lower bias for repeated examinations at the same scanner compared to different scanners the same day. 4D-flow without respiratory gating on Aera showed acceptable quality.

This abstract and the presentation materials are available to members only; a login is required.

Join Here

Abstract Presentation Video