The Publication Database hosted by SPL
|
All Publications
Upload
Advanced Search
Gallery View
Download Statistics
Help
Import
Log in
Implementation of Wavelet-encoded MR Imaging
|
|
Institution: |
Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115. |
Publisher: |
J Magn Reson Imaging |
Publication Date: |
Jul-1993 |
Volume Number: |
3 |
Issue Number: |
4 |
Pages: |
649-655 |
Citation: |
J Magn Reson Imaging. 1993 Jul-Aug;3(4):649-55. |
PubMed ID: |
8347959 |
Keywords: |
Adaptive-resolution imaging, Mathematical model, Rapid imaging, Pulse sequences, Wavelet encoding |
Appears in Collections: |
SPL, NCIGT |
Sponsors: |
R01CA45743 (CA) funded by NCI |
Generated Citation: |
Panych L.P., Jakab P.D., Jolesz F.A. Implementation of Wavelet-encoded MR Imaging. J Magn Reson Imaging. 1993 Jul-Aug;3(4):649-55. PMID: 8347959. |
| Downloaded: | 927 times. [view map] |
| Paper: | Download, View online |
| Export citation: |
Reconstructions of images from wavelet-encoded data are shown. The method of MR wavelet encoding in one dimension was proposed previously by Weaver and Healy. The technique relies on selective excitation with wavelet-shaped profiles generated by special radio-frequency waveforms. The result of the imaging sequence is a set of inner products of the image with orthogonal functions of the wavelet basis. Inversion of the wavelet data is accomplished with an efficient algorithm with processing times comparable with those of a fast Fourier transform. The experiments show that wavelet encoding by selective excitation of wavelet-shaped profiles is feasible. Wavelet-encoded images are compared with phase-encoded images that have a similar signal-to-noise ratio, and there is no discernible degradation in image quality due to the wavelet encoding. Potential benefits of wavelet encoding are briefly discussed.
Additional Material
1 File (478.289kB)
Panych-JMRI1993-fig8.jpg (478.289kB)