Reference-free single-pass EPI Nyquist ghost correction using annihilating filter-based low rank Hankel matrix (ALOHA)

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Juyoung LeeJong Chul Ye

Abstract

MR measurements from an echo-planar imaging (EPI) sequence produce Nyquist ghost artifacts that originate from inconsistencies between odd and even echoes. Several reconstruction algorithms have been proposed to reduce such artifacts, but most of these methods require either additional reference scans or multipass EPI acquisition. This article proposes a novel and accurate single-pass EPI ghost artifact correction method that does not require any additional reference data. After converting a ghost correction problem into separate k-space data interpolation problems for even and odd phase encoding, our algorithm exploits an observation that the differential k-space data between the even and odd echoes is a Fourier transform of an underlying sparse image. Accordingly, we can construct a rank-deficient Hankel structured matrix, whose missing data can be recovered using an annihilating filter-based low rank Hankel structured matrix completion approach. The proposed method was applied to EPI data for both single and multicoil acquisitions. Experimental results using in vivo data confirmed that the proposed method can completely remove ghost artifacts successfully without prescan echoes. Owing to the discovery of the annihilating fil...Continue Reading

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Citations

Jan 13, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Berkin BilgicKawin Setsompop
Jan 21, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Alexander LoktyushinKlaus Scheffler
Mar 2, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Merry ManiMathews Jacob
Feb 11, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Mengye LyuEd X Wu
Feb 8, 2019·NMR in Biomedicine·Samantha J HoldsworthKawin Setsompop
Nov 6, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jessica A McKayPatrick J Bolan
Dec 4, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Merry ManiMathews Jacob
Sep 24, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Yilong LiuEd X Wu
Aug 24, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Merry ManiVincent Magnotta
Oct 17, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Julianna D IanniWilliam A Grissom
Aug 31, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Hyun-Seo AhnJong Chul Ye
Jul 20, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Juyoung LeeJong Chul Ye
Mar 29, 2019·BMC Biomedical Engineering·Jong Chul Ye
Jul 29, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Kyong Hwan JinJong Chul Ye
Dec 18, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Rodrigo A LobosJustin P Haldar

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