Meeting Banner
Abstract #3813

Direct Coronary Artery Motion Tracking from Cartesian 2D Fat Image Navigator for Motion Corrected Coronary MRA

Keigo Kawaji1, 2, Pascal Spincemaille2, Thanh D. Nguyen2, Nandadeepa Thimmappa2, Mitchell A. Cooper1, 2, Martin R. Prince2, Yi Wang1, 2

1Biomedical Engineering, Cornell University, Ithaca, NY, United States; 2Radiology, Weill Cornell Medical College, New York, NY, United States

Direct measurement of coronary artery motion can be determined from a Cartesian 2D fat image navigator, which uses a spatial-spectral selective excitation to excite the epicardial fat surrounding the coronary arteries. In this study, we demonstrate the feasibility of motion correction on all acquired data in a 3D SSFP CMRA sequence without respiratory gating using coronary artery displacements derived from the 2D Fat image navigator.

Keywords

accuracy accurate additionally angiography applying approved arteries artery artifacts assessed binomial biomedical blinded blurring branches breath cardiac cardiovascular centric clearly college combining compensation completed concept coronal coronary corrected correction correlation cross depends diagnostic direct directly displacements echoes effective efficient encode encodes engineering established estimating every excellent excitation excited experienced experimental explained extracted extraction fair fairly fast feasibility gating generated good hand healthy heart heartbeat heartbeats held immune improved improvements included includes incorporated investigation kaiser long manner manually martin mass matching measured medical minute minutes motion native navigator navigators nominal notable overall oversampling particularly pascal poor preceded primarily prince proof prospective protocol pulse pulses quality radiologist radiology ramp readout recognized reconstructed reconstruction reconstructions reformatted repeated resolution respiratory retrospective reverse saturation scale scanned scanner score selected selective setup severe significantly slice space spatial spectral spectrally spiral spoiler substantial substantially successfully suffered suggests suited surrounding template theorem thick track tracking train view volumes volunteers