Data-driven Nyquist ghost correction for hyperpolarized 13C EPSI and EPI

Abubakr Eldirdiri; Stefan Posse; Lars G. Hanson; Andreas Clemmensen; Adam E. Hansen; Jan Henrik Ardenkjær-Larsen; Charles H. Cunningham

Abstract

Echo-planar readout is often used in hyperpolarized imaging because of its rapid sampling of the k-space. This scheme, however, suffers from Nyquist ghosting artifacts. We present a data-driven approach to correct Nyquist ghosting in hyperpolarized C-EPSI and EPI . The method exploits the sparsity of the spectra in hyperpolarized C imaging spectroscopy, and estimates the phase discrepancies from the odd and even data in C-EPSI. The method was demonstrated in phantoms and in vivo. We show that it performs better than the H reference-based reconstruction, and it eliminates the need for reference scans, which may be an unnecessary source of error

Original language	English
Publication date	2019
Publication status	Published - 2019
Event	ISMRM 27th Annual Meeting & Exhibition - Montréal, Canada Duration: 11 May 2019 → 16 May 2019 https://www.ismrm.org/19m/

Conference

Conference	ISMRM 27th Annual Meeting & Exhibition
Country/Territory	Canada
City	Montréal
Period	11/05/2019 → 16/05/2019
Internet address	https://www.ismrm.org/19m/

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https://orbit.dtu.dk/en/publications/data-driven-nyquist-ghost-correction-for-hyperpolarized-13c-epsi-

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Eldirdiri, A., Posse, S., Hanson, L. G., Clemmensen, A., Hansen, A. E., Ardenkjær-Larsen, J. H., & Cunningham, C. H. (2019). Data-driven Nyquist ghost correction for hyperpolarized 13C EPSI and EPI. Abstract from ISMRM 27th Annual Meeting & Exhibition, Montréal, Quebec, Canada. https://orbit.dtu.dk/en/publications/data-driven-nyquist-ghost-correction-for-hyperpolarized-13c-epsi-

Eldirdiri, A, Posse, S, Hanson, LG , Clemmensen, A , Hansen, AE, Ardenkjær-Larsen, JH & Cunningham, CH 2019, 'Data-driven Nyquist ghost correction for hyperpolarized 13C EPSI and EPI', ISMRM 27th Annual Meeting & Exhibition, Montréal, Canada, 11/05/2019 - 16/05/2019. <https://orbit.dtu.dk/en/publications/data-driven-nyquist-ghost-correction-for-hyperpolarized-13c-epsi->

@conference{0295441c0d11425296d59837b65a280f,

title = "Data-driven Nyquist ghost correction for hyperpolarized 13C EPSI and EPI",

abstract = "Echo-planar readout is often used in hyperpolarized imaging because of its rapid sampling of the k-space. This scheme, however, suffers from Nyquist ghosting artifacts. We present a data-driven approach to correct Nyquist ghosting in hyperpolarized C-EPSI and EPI . The method exploits the sparsity of the spectra in hyperpolarized C imaging spectroscopy, and estimates the phase discrepancies from the odd and even data in C-EPSI. The method was demonstrated in phantoms and in vivo. We show that it performs better than the H reference-based reconstruction, and it eliminates the need for reference scans, which may be an unnecessary source of error",

author = "Abubakr Eldirdiri and Stefan Posse and Hanson, {Lars G.} and Andreas Clemmensen and Hansen, {Adam E.} and Ardenkj{\ae}r-Larsen, {Jan Henrik} and Cunningham, {Charles H.}",

year = "2019",

language = "English",

note = "ISMRM 27th Annual Meeting & Exhibition ; Conference date: 11-05-2019 Through 16-05-2019",

url = "https://www.ismrm.org/19m/",

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TY - ABST

T1 - Data-driven Nyquist ghost correction for hyperpolarized 13C EPSI and EPI

AU - Eldirdiri, Abubakr

AU - Posse, Stefan

AU - Hanson, Lars G.

AU - Clemmensen, Andreas

AU - Hansen, Adam E.

AU - Ardenkjær-Larsen, Jan Henrik

AU - Cunningham, Charles H.

PY - 2019

Y1 - 2019

N2 - Echo-planar readout is often used in hyperpolarized imaging because of its rapid sampling of the k-space. This scheme, however, suffers from Nyquist ghosting artifacts. We present a data-driven approach to correct Nyquist ghosting in hyperpolarized C-EPSI and EPI . The method exploits the sparsity of the spectra in hyperpolarized C imaging spectroscopy, and estimates the phase discrepancies from the odd and even data in C-EPSI. The method was demonstrated in phantoms and in vivo. We show that it performs better than the H reference-based reconstruction, and it eliminates the need for reference scans, which may be an unnecessary source of error

AB - Echo-planar readout is often used in hyperpolarized imaging because of its rapid sampling of the k-space. This scheme, however, suffers from Nyquist ghosting artifacts. We present a data-driven approach to correct Nyquist ghosting in hyperpolarized C-EPSI and EPI . The method exploits the sparsity of the spectra in hyperpolarized C imaging spectroscopy, and estimates the phase discrepancies from the odd and even data in C-EPSI. The method was demonstrated in phantoms and in vivo. We show that it performs better than the H reference-based reconstruction, and it eliminates the need for reference scans, which may be an unnecessary source of error

M3 - Conference abstract for conference

T2 - ISMRM 27th Annual Meeting & Exhibition

Y2 - 11 May 2019 through 16 May 2019

ER -

Data-driven Nyquist ghost correction for hyperpolarized 13C EPSI and EPI

Abstract

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