Other

General Electric Company

Andrew E Arai

Steven D Wolff

Frederick H Epstein

Thomas K Foo

Jeffrey A Feinstein

Carl C Gaither

An MRI scan is conducted in which velocity encoded NMR data is acquired for a slice through the heart. Velocity images and magnitude images are reconstructed at multiple cardiac phases and masks are formed using the magnitude images. The masks are applied to the velocity images to isolate the left ventricle, and rigid body motion is calculated and subtracted from the masked velocity images to indicate deformation of the left ventricle.

Method for extracting deformations from velocity-encoded magnetic

A method is disclosed to reconstruct multiphase MR images that accurately depict the entire cardiac cycle. A segmented, gradient-recalled-echo sequence is modified to acquire data continuously. Images are retrospectively reconstructed by selecting views from each heartbeat based on cardiac phase rather than the time elapsed from the QRS complex. Cardiac phase is calculated using a model that compensates for beat-to-beat heart rate changes.

Retrospective ordering of segmented MRI cardiac data using cardiac phase

Growing community of inventors

Kensington, MD, United States of America

Andrew E Arai