Increasing the signal-to-noise ratio in DENSE MRI by combining displacement-encoded echoes

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Daniel KimL Axel

Abstract

A new technique was developed to increase the signal-to-noise ratio (SNR) in displacement encoding with stimulated echoes (DENSE) MRI. This signal-averaged DENSE (sav-DENSE) technique is based on the SNR advantage of extracting a pair of DENSE images with uncorrelated noise from the complex complementary spatial modulation of the magnetization image, and combining them during image reconstruction. Eleven healthy volunteers were imaged at three short-axis locations with the use of sav-DENSE, cine DENSE, and myocardial tagging pulse sequences. In this study, sav-DENSE increased the SNR by 15-34% as compared to cine DENSE. Circumferential strain values measured by sav-DENSE and myocardial tagging were strongly correlated (slope = 0.95, intercept = -0.02, R = 0.92) and within the 95% limits of agreement. The breath-hold sav-DENSE technique yielded relatively accurate and precise quantification of 2D intramyocardial function, with a 40.2-ms temporal resolution and a 3.5 x 3.5 mm2 spatial resolution.

References

Jul 1, 1991·Journal of Magnetic Resonance Imaging : JMRI·N J PelcG H Glover
Jun 1, 1989·Radiology·L Axel, L Dougherty
Jul 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·S E FischerP Boesiger
Nov 1, 1993·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·G C McKinnon
Aug 1, 1993·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·S E FischerP Boesiger
Nov 26, 1999·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·N F OsmanJ L Prince
Jul 31, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·N F OsmanJ L Prince
Sep 11, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A H Aletras, H Wen
Jul 12, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·David A FeinbergVan J Wedeen
Oct 3, 2003·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Daniel KimFrederick H Epstein
Jan 1, 1994·IEEE Transactions on Medical Imaging·M A GuttmanE R McVeigh

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Citations

May 10, 2005·Medical Image Analysis·Leon AxelDaniel Kim
May 19, 2011·Circulation. Cardiovascular Imaging·Wael AlJaroudiThomas Marwick
Jul 30, 2011·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·El-Sayed H Ibrahim
Jul 9, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Li FengDaniel Kim
Nov 7, 2008·Echocardiography·Jana G DelfinoStamatios Lerakis
Dec 20, 2008·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Michaela SoellingerPeter Boesiger
Jun 16, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·David BrotmanSmita Sampath
Aug 27, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jia Zhong, Xin Yu
Jul 25, 2012·Journal of Magnetic Resonance Imaging : JMRI·Robin M SimpsonDavid N Firmin
Jul 13, 2006·IEEE Transactions on Bio-medical Engineering·Ahmed S FahmyNael F Osman
Oct 15, 2011·IEEE Transactions on Medical Imaging·Hui Wang, Amir A Amini
Jan 31, 2015·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Gregory J WehnerBrandon K Fornwalt
May 5, 2017·Journal of Magnetic Resonance Imaging : JMRI·Teodora Chitiboi, Leon Axel
Nov 11, 2006·Journal of Magnetic Resonance Imaging : JMRI·Joost P A KuijerRob M Heethaar
Nov 4, 2009·Nature Reviews. Cardiology·Niti R AggarwalPanithaya Chareonthaitawee
Jan 13, 2006·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ahmed S FahmyNael F Osman
Apr 6, 2006·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Volker HeroldPeter M Jakob
Sep 2, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Blaise Simplice Talla NwotchouangFrancis Loth
Sep 21, 2018·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Valentina O PuntmannUNKNOWN SCMR Clinical Trial Writing Group

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