article · Journal of Magnetic Resonance Imaging · 1997

Multistep phase difference phase contrast imaging

Cited by 12Abstract and details only

Abstract

A new technique for multistep phase-contrast image processing is presented. The N-step method consists of simply forming the linear average of the N-1 adjacent phase-difference signals. It has similar noise reduction properties as other multistep techniques, but the simplicity of the noise variance of the N-step technique allows intuitive insight into phase-difference phase-contrast processing and noise reduction, which can aid in the design of efficient and improved phase-contrast imaging sequences. As well, the computational simplicity of the N-step phase-difference technique compared with any other known multistep technique is advantageous. Like other multistep techniques, it has far more efficient noise reduction properties than simple two-step, multiple average phase-contrast imaging, even when normalized for total scan time. A three-step phase-difference velocity image has 50% less variance than an image acquired with two steps and two scans averaged but is obtained in 25% less scan time. Given its advantages, it should now be the chosen technique for increasing velocity-to-noise and contrast-to-noise ratios in all phase-difference phase-contrast clinical applications.

Cite this paper

APA 7

Lamothe, M. J. R., & Rutt, B. K. (1997). Multistep phase difference phase contrast imaging. Journal of Magnetic Resonance Imaging, 7(5), 838–842. https://doi.org/10.1002/jmri.1880070510

MLA 9

Lamothe, M. J. Reina, and Brian K. Rutt. “Multistep phase difference phase contrast imaging.” Journal of Magnetic Resonance Imaging, vol. 7, no. 5, 1997, pp. 838–42, https://doi.org/10.1002/jmri.1880070510.

Chicago

Lamothe, M. J. Reina, and Brian K. Rutt. 1997. “Multistep phase difference phase contrast imaging.” Journal of Magnetic Resonance Imaging 7 (5): 838–42. https://doi.org/10.1002/jmri.1880070510.

Harvard

Lamothe, M.J.R. and Rutt, B.K. (1997) ‘Multistep phase difference phase contrast imaging’, Journal of Magnetic Resonance Imaging, 7(5), pp. 838–842. Available at: https://doi.org/10.1002/jmri.1880070510.

BibTeX

@article{lamothe1997multistep,
  title = {{Multistep phase difference phase contrast imaging}},
  author = {Lamothe, M. J. Reina and Rutt, Brian K.},
  journal = {Journal of Magnetic Resonance Imaging},
  volume = {7},
  number = {5},
  pages = {838--842},
  year = {1997},
  doi = {10.1002/jmri.1880070510}
}

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