Parallelized hybrid TGRAPPA reconstruction for real-time interactive MRI.

Haris Saybasili, Peter Kellman, J. Andrew Derbyshire, Elliot R. McVeigh, Michael A. Guttman

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Real-time parallel MRI reconstruction was demonstrated using a hybrid implementation of the TGRAPPA algorithm. The GRAPPA coefficients were calculated in k-space and applied in the image domain after appropriate transformation, thereby achieving improved speed and excellent image quality. Adaptive B1-weighted combining of the per coil images permitted use of pre-calculated composite image domain weights providing significant decrease in computation. The weight calculation was decoupled from the real-time image reconstruction as a parallel processing thread which was updated in an adaptive manner to speed convergence in the event of interactive change in scan plane. The computation was parallelized and implemented on a general purpose multi-core architecture. Reconstruction speeds of 65-70 frames per second were achieved with a matrix of 192 x 144 with 15 coils.

Original languageEnglish (US)
Title of host publicationMedical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
Pages163-170
Number of pages8
Volume11
EditionPt 2
StatePublished - 2008
Externally publishedYes

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Weights and Measures
Computer-Assisted Image Processing

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Saybasili, H., Kellman, P., Derbyshire, J. A., McVeigh, E. R., & Guttman, M. A. (2008). Parallelized hybrid TGRAPPA reconstruction for real-time interactive MRI. In Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention (Pt 2 ed., Vol. 11, pp. 163-170)

Parallelized hybrid TGRAPPA reconstruction for real-time interactive MRI. / Saybasili, Haris; Kellman, Peter; Derbyshire, J. Andrew; McVeigh, Elliot R.; Guttman, Michael A.

Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Vol. 11 Pt 2. ed. 2008. p. 163-170.

Research output: Chapter in Book/Report/Conference proceedingChapter

Saybasili, H, Kellman, P, Derbyshire, JA, McVeigh, ER & Guttman, MA 2008, Parallelized hybrid TGRAPPA reconstruction for real-time interactive MRI. in Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Pt 2 edn, vol. 11, pp. 163-170.
Saybasili H, Kellman P, Derbyshire JA, McVeigh ER, Guttman MA. Parallelized hybrid TGRAPPA reconstruction for real-time interactive MRI. In Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Pt 2 ed. Vol. 11. 2008. p. 163-170
Saybasili, Haris ; Kellman, Peter ; Derbyshire, J. Andrew ; McVeigh, Elliot R. ; Guttman, Michael A. / Parallelized hybrid TGRAPPA reconstruction for real-time interactive MRI. Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Vol. 11 Pt 2. ed. 2008. pp. 163-170
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