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Accelerating non-contrast-enhanced MR angiography with inflow inversion recovery imaging by skipped phase encoding and edge deghosting (SPEED).

Publication ,  Journal Article
Chang, Z; Xiang, Q-S; Shen, H; Yin, F-F
Published in: J Magn Reson Imaging
March 2010

PURPOSE: To accelerate non-contrast-enhanced MR angiography (MRA) with inflow inversion recovery (IFIR) with a fast imaging method, Skipped Phase Encoding and Edge Deghosting (SPEED). MATERIALS AND METHODS: IFIR imaging uses a preparatory inversion pulse to reduce signals from static tissue, while leaving inflow arterial blood unaffected, resulting in sparse arterial vasculature on modest tissue background. By taking advantage of vascular sparsity, SPEED can be simplified with a single-layer model to achieve higher efficiency in both scan time reduction and image reconstruction. SPEED can also make use of information available in multiple coils for further acceleration. The techniques are demonstrated with a three-dimensional renal non-contrast-enhanced IFIR MRA study. RESULTS: Images are reconstructed by SPEED based on a single-layer model to achieve an undersampling factor of up to 2.5 using one skipped phase encoding direction. By making use of information available in multiple coils, SPEED can achieve an undersampling factor of up to 8.3 with four receiver coils. The reconstructed images generally have comparable quality as that of the reference images reconstructed from full k-space data. CONCLUSION: As demonstrated with a three-dimensional renal IFIR scan, SPEED based on a single-layer model is able to reduce scan time further and achieve higher computational efficiency than the original SPEED.

Duke Scholars

Published In

J Magn Reson Imaging

DOI

EISSN

1522-2586

Publication Date

March 2010

Volume

31

Issue

3

Start / End Page

757 / 765

Location

United States

Related Subject Headings

  • Young Adult
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Renal Circulation
  • Nuclear Medicine & Medical Imaging
  • Models, Biological
  • Male
  • Magnetic Resonance Angiography
  • Kidney
  • Image Interpretation, Computer-Assisted
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Chang, Z., Xiang, Q.-S., Shen, H., & Yin, F.-F. (2010). Accelerating non-contrast-enhanced MR angiography with inflow inversion recovery imaging by skipped phase encoding and edge deghosting (SPEED). J Magn Reson Imaging, 31(3), 757–765. https://doi.org/10.1002/jmri.22069
Chang, Zheng, Qing-San Xiang, Hao Shen, and Fang-Fang Yin. “Accelerating non-contrast-enhanced MR angiography with inflow inversion recovery imaging by skipped phase encoding and edge deghosting (SPEED).J Magn Reson Imaging 31, no. 3 (March 2010): 757–65. https://doi.org/10.1002/jmri.22069.
Chang, Zheng, et al. “Accelerating non-contrast-enhanced MR angiography with inflow inversion recovery imaging by skipped phase encoding and edge deghosting (SPEED).J Magn Reson Imaging, vol. 31, no. 3, Mar. 2010, pp. 757–65. Pubmed, doi:10.1002/jmri.22069.
Journal cover image

Published In

J Magn Reson Imaging

DOI

EISSN

1522-2586

Publication Date

March 2010

Volume

31

Issue

3

Start / End Page

757 / 765

Location

United States

Related Subject Headings

  • Young Adult
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Renal Circulation
  • Nuclear Medicine & Medical Imaging
  • Models, Biological
  • Male
  • Magnetic Resonance Angiography
  • Kidney
  • Image Interpretation, Computer-Assisted