Meeting Banner
Abstract #4296

Interactive Visualization of 4D Coronary MRI with Prolonged Acquisition Window: GPU-Accelerated Flexible Gridding Reconstruction for Lag-Free Performance

Keigo Kawaji 1 , Sebastien Roujol 1 , Warren J Manning 1,2 , and Reza Nezafat 1

1 Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States, 2 Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States

A novel coronary imaging method that allows cardiac motion assessment within the acquisition window of the k-space segmented volume has recently been proposed using 3D stack-of-stars (SOS) with golden-angle-derived interleaving for encoding temporal information within different segments of the acquisition window. However, non-Cartesian radial reconstructions are typically unsuitable for immediate visualization due to the computationally expensive gridding operation. This step may bottleneck the visualization and disturb the workflow for interactive clinical assessment. We have developed an accelerated reconstruction workflow that uses a graphic processing unit (GPU) for rapid gridding of the acquired radial data, and examine its implementation and performance.

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

Join Here