Image-based EPI real time ghost correction

Shunshan Li, Michael H. Buonocore

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

Abstract

This paper presents a new, real-time, ghost correction method for echo planar imaging (EPI) that has been implemented using the Imaging Calculation Environment (ICE) on a 3T Siemens MRI System. Conventional methods for correcting EPI image ghost are based on image phase correction or on a reference scan. This new method is also based on image phase correction, but uses a new algorithm for automatic determination of the phase correction, which allows entirely automated operation. With implementation of the new correction method in ICE, ghost-corrected images are automatically generated and loaded into the system's image database immediately after completion of each EPI scan. Experiments showed that this real time ghost correction method consistently reduced the ghost intensity in EPI images and improved overall image quality. On average, the ghost to signal ratio (GSR) improved from 13.0% to 3.2% using the new method.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6916
DOIs
StatePublished - 2008
EventMedical Imaging 2008 - Physiology, Function, and Structure from Medical Images - San Diego, CA, United States
Duration: Feb 17 2008Feb 19 2008

Other

OtherMedical Imaging 2008 - Physiology, Function, and Structure from Medical Images
CountryUnited States
CitySan Diego, CA
Period2/17/082/19/08

Keywords

  • EPI ghost correction
  • Image-base algorithm
  • Imaging Calculation Environment (ICE)

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Li, S., & Buonocore, M. H. (2008). Image-based EPI real time ghost correction. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 6916). [69161L] https://doi.org/10.1117/12.768387