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A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans.

Publication ,  Journal Article
Aganj, I; Lenglet, C; Yacoub, E; Sapiro, G; Harel, N
Published in: Magnetic resonance in medicine
April 2012

Hardware constraints, scanning time limitations, patient movement, and signal-to-noise ratio (SNR) considerations, restrict the slice-selection and the in-plane resolutions of MRI differently, generally resulting in anisotropic voxels. This nonuniform sampling can be problematic, especially in image segmentation and clinical examination. To alleviate this, the acquisition is divided into (two or) three separate scans, with higher in-plane resolutions and thick slices, yet orthogonal slice-selection directions. In this work, a noniterative wavelet-based approach for combining the three orthogonal scans is adopted, and its advantages compared with other existing methods, such as Fourier techniques, are discussed, including the consideration of the actual pulse response of the MRI scanner, and its lower computational complexity. Experimental results are shown on simulated and real 7 T MRI data.

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Published In

Magnetic resonance in medicine

DOI

EISSN

1522-2594

ISSN

0740-3194

Publication Date

April 2012

Volume

67

Issue

4

Start / End Page

1167 / 1172

Related Subject Headings

  • Signal-To-Noise Ratio
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Imaging, Three-Dimensional
  • Image Processing, Computer-Assisted
  • Image Enhancement
  • Humans
  • Fourier Analysis
  • Brain Mapping
 

Citation

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MLA
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Aganj, I., Lenglet, C., Yacoub, E., Sapiro, G., & Harel, N. (2012). A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans. Magnetic Resonance in Medicine, 67(4), 1167–1172. https://doi.org/10.1002/mrm.23086
Aganj, Iman, Christophe Lenglet, Essa Yacoub, Guillermo Sapiro, and Noam Harel. “A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans.Magnetic Resonance in Medicine 67, no. 4 (April 2012): 1167–72. https://doi.org/10.1002/mrm.23086.
Aganj I, Lenglet C, Yacoub E, Sapiro G, Harel N. A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans. Magnetic resonance in medicine. 2012 Apr;67(4):1167–72.
Aganj, Iman, et al. “A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans.Magnetic Resonance in Medicine, vol. 67, no. 4, Apr. 2012, pp. 1167–72. Epmc, doi:10.1002/mrm.23086.
Aganj I, Lenglet C, Yacoub E, Sapiro G, Harel N. A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans. Magnetic resonance in medicine. 2012 Apr;67(4):1167–1172.
Journal cover image

Published In

Magnetic resonance in medicine

DOI

EISSN

1522-2594

ISSN

0740-3194

Publication Date

April 2012

Volume

67

Issue

4

Start / End Page

1167 / 1172

Related Subject Headings

  • Signal-To-Noise Ratio
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Imaging, Three-Dimensional
  • Image Processing, Computer-Assisted
  • Image Enhancement
  • Humans
  • Fourier Analysis
  • Brain Mapping