Self-navigated motion correction using moments of spatial projections in radial MRI

E. Brian Welch, Phillip J. Rossman, Joel P. Felmlee, Armando Manduca

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

1 Citation (Scopus)

Abstract

Interest in radial MRI, also known as projection reconstruction (PR) MRI, has increased recently for uses such as fast scanning and undersampled acquisitions. Additionally, PR acquisitions have intrinsic advantages over standard two-dimensional Fourier transform (2DFT) imaging with respect to motion of the imaged object. It is well known that alignment of each spatial domain projection's center of mass (calculated using each projection's 0 th and 1 st moments) to the center of the field of view corrects shifts caused by in-plane translation. Here we report a previously unrealized ability to determine the in-plane rotational motion of an imaged object using the 2 nd moments of the translation-corrected spatial domain projections. The correction requires only the PR data itself and a new projection view angle acquisition time order. The proposed view angle time order allows the acquisition to be "self-navigating" with respect to both in-plane translation and rotation. Image reconstruction using the aligned projections and detected acquisition angles can eliminate or significantly reduce image artifacts due to such motion. We describe the theory of the correction technique and demonstrate its effectiveness using a computer-controlled motion phantom executing 2-D in-plane translations and a customized pulse sequence capable of introducing known in-plane rotational errors.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJ.M. Fitzpatrick, M. Sonka
Pages719-725
Number of pages7
Volume5370 II
DOIs
StatePublished - 2004
EventProgress in Biomedical Optics and Imaging - Medical Imaging 2004: Imaging Processing - San Diego, CA, United States
Duration: Feb 16 2004Feb 19 2004

Other

OtherProgress in Biomedical Optics and Imaging - Medical Imaging 2004: Imaging Processing
CountryUnited States
CitySan Diego, CA
Period2/16/042/19/04

Fingerprint

Magnetic resonance imaging
projection
moments
acquisition
Image reconstruction
Fourier transforms
Scanning
Imaging techniques
image reconstruction
field of view
center of mass
artifacts
alignment
scanning
shift
pulses

Keywords

  • Motion artifacts
  • Motion correction
  • Projection reconstruction
  • Radial MRI

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Welch, E. B., Rossman, P. J., Felmlee, J. P., & Manduca, A. (2004). Self-navigated motion correction using moments of spatial projections in radial MRI. In J. M. Fitzpatrick, & M. Sonka (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5370 II, pp. 719-725) https://doi.org/10.1117/12.536913

Self-navigated motion correction using moments of spatial projections in radial MRI. / Welch, E. Brian; Rossman, Phillip J.; Felmlee, Joel P.; Manduca, Armando.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / J.M. Fitzpatrick; M. Sonka. Vol. 5370 II 2004. p. 719-725.

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

Welch, EB, Rossman, PJ, Felmlee, JP & Manduca, A 2004, Self-navigated motion correction using moments of spatial projections in radial MRI. in JM Fitzpatrick & M Sonka (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5370 II, pp. 719-725, Progress in Biomedical Optics and Imaging - Medical Imaging 2004: Imaging Processing, San Diego, CA, United States, 2/16/04. https://doi.org/10.1117/12.536913
Welch EB, Rossman PJ, Felmlee JP, Manduca A. Self-navigated motion correction using moments of spatial projections in radial MRI. In Fitzpatrick JM, Sonka M, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5370 II. 2004. p. 719-725 https://doi.org/10.1117/12.536913
Welch, E. Brian ; Rossman, Phillip J. ; Felmlee, Joel P. ; Manduca, Armando. / Self-navigated motion correction using moments of spatial projections in radial MRI. Proceedings of SPIE - The International Society for Optical Engineering. editor / J.M. Fitzpatrick ; M. Sonka. Vol. 5370 II 2004. pp. 719-725
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