Abstract

We propose a fast implementation for iterative MR image reconstruction using Graphics Processing Units (GPU). In MRI, iterative reconstruction with conjugate gradient algorithms allows for accurate modeling the physics of the imaging system. Specifically, methods have been reported to compensate for the magnetic field inhomogeneity induced by the susceptibility differences near the air/tissue interface in human brain (such as orbitofrontal cortex). Our group has previously presented an algorithm for field inhomogeneity compensation using magnetic field map and its gradients. However, classical iterative reconstruction algorithms are computationally costly, and thus significantly increase the computation time. To remedy this problem, one can utilize the fact that these iterative MR image reconstruction algorithms are highly parallelizable. Therefore, parallel computational hardware, such as GPU, can dramatically improve their performance. In this work, we present an implementation of our field inhomogeneity compensation technique using NVIDA CUDA(Compute Unified Device Architecture)-enabled GPU. We show that the proposed implementation significantly reduces the computation times around two orders of magnitude (compared with non-GPU implementation) while accurately compensating for field inhomogeneity.

Original languageEnglish (US)
Title of host publication2010 7th IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro, ISBI 2010 - Proceedings
Pages820-823
Number of pages4
DOIs
StatePublished - Aug 9 2010
Event7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Rotterdam, Netherlands
Duration: Apr 14 2010Apr 17 2010

Publication series

Name2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings

Other

Other7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010
CountryNetherlands
CityRotterdam
Period4/14/104/17/10

Fingerprint

Computer-Assisted Image Processing
Image reconstruction
Magnetic Fields
Magnetic fields
Physics
Prefrontal Cortex
Imaging systems
Magnetic resonance imaging
Brain
Air
Tissue
Hardware
Equipment and Supplies
Graphics processing unit
Processing
Compensation and Redress

Keywords

  • Conjugate gradient
  • CUDA
  • Field inhomogeneity
  • GPU
  • Iterative reconstruction
  • MRI

ASJC Scopus subject areas

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

Cite this

Zhuo, Y., Wu, X. L., Haldar, J. P., Hwu, W. M., Liang, Z. P., & Sutton, B. P. (2010). Accelerating iterative field-compensated MR image reconstruction on GPUs. In 2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings (pp. 820-823). [5490112] (2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings). https://doi.org/10.1109/ISBI.2010.5490112

Accelerating iterative field-compensated MR image reconstruction on GPUs. / Zhuo, Yue; Wu, Xiao Long; Haldar, Justin P.; Hwu, Wen Mei; Liang, Zhi Pei; Sutton, Bradley P.

2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings. 2010. p. 820-823 5490112 (2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings).

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

Zhuo, Y, Wu, XL, Haldar, JP, Hwu, WM, Liang, ZP & Sutton, BP 2010, Accelerating iterative field-compensated MR image reconstruction on GPUs. in 2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings., 5490112, 2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings, pp. 820-823, 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010, Rotterdam, Netherlands, 4/14/10. https://doi.org/10.1109/ISBI.2010.5490112
Zhuo Y, Wu XL, Haldar JP, Hwu WM, Liang ZP, Sutton BP. Accelerating iterative field-compensated MR image reconstruction on GPUs. In 2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings. 2010. p. 820-823. 5490112. (2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings). https://doi.org/10.1109/ISBI.2010.5490112
Zhuo, Yue ; Wu, Xiao Long ; Haldar, Justin P. ; Hwu, Wen Mei ; Liang, Zhi Pei ; Sutton, Bradley P. / Accelerating iterative field-compensated MR image reconstruction on GPUs. 2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings. 2010. pp. 820-823 (2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings).
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