Meeting Banner
Abstract #0665

Highly Accelerated 4D MR Flow Measurements in Congenital Heart Disease

MAGNA25Daniel Giese1, 2, Gerald Greil1, Tobias Schaeffter1, Sebastian Kozerke1, 2

1Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom; 2Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

Especially due to its long acquisition times, 4D Flow MRI often remains compromised in a clinical routine setting. Scan acceleration techniques have been proposed to alleviate this issue. In the present work we demonstrate the potential of using highly undersampled 4D Flow MRI reconstructed using k-t PCA in imaging of congenital heart disease patients (CHD). Patients with different pathologies were scanned and initial results prove that volume flow compares well with fully sampled 2D Flow MRI and that particle tracking exhibits additional clinically valuable information.

Abstract PDF Presentation Video

Keywords

abnormal abnormalities accelerated acceleration accordance achievable acquisition address agreement allowing analyzed anatomies anesthesia aorta applicable applied appropriate arrows arteries artery artifacts ascending assessment bifurcation biomedical blood blurring cardiac chosen circular clinical college combination component congenital connecting contour contrast corrected cover curves dataset demonstrating depict depicted descending details deviation diastole disease displays division early efficiency encoded encoding engineering entering excluding feasibility flow folding fully furthermore gating general geometry gold good gray great heart highly incompetence initial institute intact investigates king kingdom limit limitations linear long measured minutes navigator nominal noticeable offsets ongoing particle particles pathologies patient patients patterns post potential practice previously principal procedure profiles promising proposed pulmonary qualitative recently reconstructed reduce reduced reformatting regression released repair required residual resolution resolved retrograde retrospective routine sampled sciences shunt software static still strong successfully syndrome systole table temporal tissue trace traces tracking transform type vascular velocity ventricular vessels visibly volumes walker whereas wide yielded