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Accelerated aortic flow assessment with compressed sensing with and without use of the sparsity of the complex difference image.

Publication ,  Journal Article
Kwak, Y; Nam, S; Akçakaya, M; Basha, TA; Goddu, B; Manning, WJ; Tarokh, V; Nezafat, R
Published in: Magnetic resonance in medicine
September 2013

Phase contrast (PC) cardiac MR is widely used for the clinical assessment of blood flow in cardiovascular disease. One of the challenges of PC cardiac MR is the long scan time which limits both spatial and temporal resolution. Compressed sensing reconstruction with accelerated PC acquisitions is a promising technique to increase the scan efficiency. In this study, we sought to use the sparsity of the complex difference of the two flow-encoded images as an additional constraint term to improve the compressed sensing reconstruction of the corresponding accelerated PC data acquisition. Using retrospectively under-sampled data, the proposed reconstruction technique was optimized and validated in vivo on 15 healthy subjects. Then, prospectively under-sampled data was acquired on 11 healthy subjects and reconstructed with the proposed technique. The results show that there is good agreement between the cardiac output measurements from the fully sampled data and the proposed compressed sensing reconstruction method using complex difference sparsity up to acceleration rate 5. In conclusion, we have developed and evaluated an improved reconstruction technique for accelerated PC cardiac MR that uses the sparsity of the complex difference of the two flow-encoded images.

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Published In

Magnetic resonance in medicine

DOI

EISSN

1522-2594

ISSN

0740-3194

Publication Date

September 2013

Volume

70

Issue

3

Start / End Page

851 / 858

Related Subject Headings

  • Retrospective Studies
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Magnetic Resonance Angiography
  • Humans
  • Cardiac Output
  • Aorta
  • 4003 Biomedical engineering
  • 0903 Biomedical Engineering
 

Citation

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Kwak, Y., Nam, S., Akçakaya, M., Basha, T. A., Goddu, B., Manning, W. J., … Nezafat, R. (2013). Accelerated aortic flow assessment with compressed sensing with and without use of the sparsity of the complex difference image. Magnetic Resonance in Medicine, 70(3), 851–858. https://doi.org/10.1002/mrm.24514
Kwak, Yongjun, Seunghoon Nam, Mehmet Akçakaya, Tamer A. Basha, Beth Goddu, Warren J. Manning, Vahid Tarokh, and Reza Nezafat. “Accelerated aortic flow assessment with compressed sensing with and without use of the sparsity of the complex difference image.Magnetic Resonance in Medicine 70, no. 3 (September 2013): 851–58. https://doi.org/10.1002/mrm.24514.
Kwak Y, Nam S, Akçakaya M, Basha TA, Goddu B, Manning WJ, et al. Accelerated aortic flow assessment with compressed sensing with and without use of the sparsity of the complex difference image. Magnetic resonance in medicine. 2013 Sep;70(3):851–8.
Kwak, Yongjun, et al. “Accelerated aortic flow assessment with compressed sensing with and without use of the sparsity of the complex difference image.Magnetic Resonance in Medicine, vol. 70, no. 3, Sept. 2013, pp. 851–58. Epmc, doi:10.1002/mrm.24514.
Kwak Y, Nam S, Akçakaya M, Basha TA, Goddu B, Manning WJ, Tarokh V, Nezafat R. Accelerated aortic flow assessment with compressed sensing with and without use of the sparsity of the complex difference image. Magnetic resonance in medicine. 2013 Sep;70(3):851–858.
Journal cover image

Published In

Magnetic resonance in medicine

DOI

EISSN

1522-2594

ISSN

0740-3194

Publication Date

September 2013

Volume

70

Issue

3

Start / End Page

851 / 858

Related Subject Headings

  • Retrospective Studies
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Magnetic Resonance Angiography
  • Humans
  • Cardiac Output
  • Aorta
  • 4003 Biomedical engineering
  • 0903 Biomedical Engineering