Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints

Xi Peng; Hien Nguyen; Justin Haldar; Diego Hernando; Xian Pei Wang; Zhi Pei Liang

doi:10.1109/IEMBS.2010.5627873

Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints

Xi Peng, Hien Nguyen, Justin Haldar, Diego Hernando, Xian Pei Wang, Zhi Pei Liang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Magnetic field inhomogeneity is a long-standing problem in magnetic resonance imaging (MRI) and spectroscopic imaging (MRSI). Specifically, in MRSI, field inhomogeneity, if not corrected, can cause frequency shifts, line broadening, and lineshape distortions in the spectral peaks. This paper addresses the problem of correcting the field inhomogeneity effects on limited k-space MRSI data. A penalized maximumlikelihood method is proposed, which enables the use of anatomical constraints for improving the correction performance with only limited k-space data. Simulation results are shown to demonstrate the effectiveness of the proposed method.

Original language	English (US)
Title of host publication	2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Pages	883-886
Number of pages	4
DOIs	https://doi.org/10.1109/IEMBS.2010.5627873
State	Published - 2010
Event	2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 - Buenos Aires, Argentina Duration: Aug 31 2010 → Sep 4 2010

Publication series

Name	2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10

Other

Other	2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Country/Territory	Argentina
City	Buenos Aires
Period	8/31/10 → 9/4/10

ASJC Scopus subject areas

Biomedical Engineering
Computer Vision and Pattern Recognition
Signal Processing
Health Informatics

Online availability

10.1109/IEMBS.2010.5627873

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Peng, X., Nguyen, H., Haldar, J., Hernando, D., Wang, X. P., & Liang, Z. P. (2010). Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 (pp. 883-886). Article 5627873 (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10). https://doi.org/10.1109/IEMBS.2010.5627873

Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints. / Peng, Xi; Nguyen, Hien; Haldar, Justin et al.
2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 883-886 5627873 (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Peng, X, Nguyen, H, Haldar, J, Hernando, D, Wang, XP & Liang, ZP 2010, Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints. in 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10., 5627873, 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10, pp. 883-886, 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10, Buenos Aires, Argentina, 8/31/10. https://doi.org/10.1109/IEMBS.2010.5627873

Peng X, Nguyen H, Haldar J, Hernando D, Wang XP, Liang ZP. Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 883-886. 5627873. (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10). doi: 10.1109/IEMBS.2010.5627873

Peng, Xi ; Nguyen, Hien ; Haldar, Justin et al. / Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints. 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. pp. 883-886 (2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10).

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abstract = "Magnetic field inhomogeneity is a long-standing problem in magnetic resonance imaging (MRI) and spectroscopic imaging (MRSI). Specifically, in MRSI, field inhomogeneity, if not corrected, can cause frequency shifts, line broadening, and lineshape distortions in the spectral peaks. This paper addresses the problem of correcting the field inhomogeneity effects on limited k-space MRSI data. A penalized maximumlikelihood method is proposed, which enables the use of anatomical constraints for improving the correction performance with only limited k-space data. Simulation results are shown to demonstrate the effectiveness of the proposed method.",

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AB - Magnetic field inhomogeneity is a long-standing problem in magnetic resonance imaging (MRI) and spectroscopic imaging (MRSI). Specifically, in MRSI, field inhomogeneity, if not corrected, can cause frequency shifts, line broadening, and lineshape distortions in the spectral peaks. This paper addresses the problem of correcting the field inhomogeneity effects on limited k-space MRSI data. A penalized maximumlikelihood method is proposed, which enables the use of anatomical constraints for improving the correction performance with only limited k-space data. Simulation results are shown to demonstrate the effectiveness of the proposed method.

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Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints

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