Auto-calibrated dynamic parallel MRI with phase-sensitive data

Jong Bum Son, Jim Ji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A number of MRI applications rely on dynamic phase information embedded in the acquired images. Such applications often require multiple acquisitions, leading to possibly long scan time and low temporal resolution. Previously, SENSE method has been used for phase-sensitive data to shorten acquisition time. However, SENSE can be subject to artifacts due to inaccurate coil sensitivities and low SNR. In this paper, dynamic phase data are derived from self-calibrated parallel MRI and an optimal method is used to combine phase information from multiple receiver channels. Simulation results using 4-channel prostate imaging data show that it is possible to get a factor of 3 speedup and the new method is more accurate than the SENSE method in reconstructing the phase information, thus has potential to improve phase-sensitive MRI applications such as phase contrast velocity mapping, temperature mapping for thermal therapy, and Dixon water/fat imaging.

Original languageEnglish
Title of host publication28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
Pages751-754
Number of pages4
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 - New York, NY, United States
Duration: 30 Aug 20063 Sep 2006

Other

Other28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
CountryUnited States
CityNew York, NY
Period30/8/063/9/06

Fingerprint

Magnetic resonance imaging
Imaging techniques
Oils and fats
Fats
Water
Temperature
Hot Temperature

Keywords

  • Image reconstruction
  • Parallel MRI
  • Phase sensitive MRI
  • Phase-contrast MRA
  • Temperature mapping

ASJC Scopus subject areas

  • Bioengineering

Cite this

Son, J. B., & Ji, J. (2006). Auto-calibrated dynamic parallel MRI with phase-sensitive data. In 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 (pp. 751-754). [4029665] https://doi.org/10.1109/IEMBS.2006.260695

Auto-calibrated dynamic parallel MRI with phase-sensitive data. / Son, Jong Bum; Ji, Jim.

28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06. 2006. p. 751-754 4029665.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Son, JB & Ji, J 2006, Auto-calibrated dynamic parallel MRI with phase-sensitive data. in 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06., 4029665, pp. 751-754, 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06, New York, NY, United States, 30/8/06. https://doi.org/10.1109/IEMBS.2006.260695
Son JB, Ji J. Auto-calibrated dynamic parallel MRI with phase-sensitive data. In 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06. 2006. p. 751-754. 4029665 https://doi.org/10.1109/IEMBS.2006.260695
Son, Jong Bum ; Ji, Jim. / Auto-calibrated dynamic parallel MRI with phase-sensitive data. 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06. 2006. pp. 751-754
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