Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
568-06-008 ISMRM Abstract

Power spectral density in ESPIRiT for faster coil sensitivity estimations in MRI

Primary: Acquisition & Reconstruction - Subsampling: Parallel imaging, compressed sensing and low-rank modeling
Secondary: Acquisition & Reconstruction - Image Reconstruction: Non-AI
568-06-008 · Image Reconstruction II · Wednesday, 13 May, 4:55 PM–5:50 PM · Digital Posters Row I
Keywords: Image Reconstruction Power spectral density Faster coil sensitivity estimation Undersampled MRI Reconstruction
Accepted
Ilseok Lee1,2, Jörn Huber1, Laurent Ruck3, Armin M NAGEL3, Simon Konstandin 1
1Fraunhofer Institute for Digital Medicine MEVIS, Bremen, Germany
2University of Bremen, Bremen, Germany
3Uniklinikum Erlangen, Erlangen, Germany
Presenting Author: Simon Konstandin

Synopsis

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References

1. Uecker M, Lai P, Murphy M, Virtue P, Elad M, Pauly J, Vasanawala S, Lustig M. ESPIRiT—an eigenvalue approach to autocalibrating parallel MRI: Where SENSE meets GRAPPA. Magn Reson Med. 2014;71(4):990‐1001. https://doi.org/10.1002/mrm.24751. [doi]
2. Khintchine A. Korrelationstheorie der stationären stochastischen Prozesse. Math Ann.1934;109:604‐615. https://doi.org/10.1007/BF01449156. [doi]
3. Aulin T, Sundberg C. Calculating digital FM spectra by means of autocorrelation. IEEE Trans Commun. 1982;30(5):1199‐1208. https://doi.org/10.1109/tcom.1982.1095574. [doi]
4. Klein B, Philipp S, Krämer I, Kasemann C, Güsten R, Menten K. The APEX digital fast Fourier transform spectrometer. Astron Astrophys. 2006;454(2):L29‐L32. https://doi.org/10.1051/0004-6361:20065415. [doi]
5. Nagel A, Laun F, Weber M, Matthies C, Semmler W, Schad L. Sodium MRI using a density-adapted 3D radial acquisition technique. Magn Reson Med. 2009;62(6):1565‐1573. https://doi.org/10.1002/mrm.22157. [doi]
6. Ruck L, Egger N, Wilferth T, Schirmer J, Gast L, Nagelstraßer S, Wildenberg S, Bitz A, Lanz T, Platt T, Konstandin S, Kopp C, Uder M, Nagel A. Interleaved 23Na/1H MRI of the human heart at 7 T using a combined 23Na/1H coil setup and 1H parallel transmission. Magn Reson Med. 2025;94(1):231‐241. https://doi.org/10.1002/mrm.30426 [doi]
7. Uecker M, Ong F, Tamir J, Bahri D, Virtue P, Cheng J, Zhang T, Lustig M. Berkeley Advanced Reconstruction Toolbox. Proc Int Soc Magn Reson Med. 2015;23:2486. Toronto, Canada.9. https://doi.org/10.5281/ZENODO.592960. [doi]
8. Welch P. The use of Fast Fourier Transform for the estimation of power spectra: A method based on time averaging over short, modified periodograms. IEEE Trans Audio Electroacoust. 1967;15(2):70‐73. https://doi.org/10.1109/tau.1967.1161901. [doi]
9. Blackman R, Tukey J. The Measurement of Power Spectra from the Point of View of Communications Engineering — Part I. Bell Syst Tech J. 1958;37:185‐282. https://doi.org/10.1002/j.1538-7305.1958.tb03874.x. [doi]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/568-06-008