| Presentation | 2015-03-16 Study on spectral reconstruction using optimization with their sparsity in MR spectroscopy Takenori OIDA, Tomokazu MURASE, Masahiro UMEDA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Magnetic resonance spectroscopy (MRS) is one of the chemical analyses with nuclear magnetic resonance (NMR), which is able to measure the NMR spectra non-invasively. In general, although spectra reconstructions with fast Fourier transformation have been utilized in MRS measurements, long acquisition time has been required to obtain high resolution in frequency domain. However, long acquisition time may cause artifacts and low signal-to-noise ratio. In this study, we proposed a spectra reconstruction method with compressed sensing using L1-norm optimization. MR signals obtained from 100 mM myo-Inositol phantom were compressed, and their spectra were reconstructed by FISTA, which is one of the L1-norm optimization algorithms, and zero-filled FFT. These results showed that the acquisition time was able to be reduced by FISTA with suppressing spread of the spectra. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | magnetic resonance spectroscopy (MRS) / compressed sensing (CS) / sparse model |
| Paper # | MBE2014-117,NC2014-68 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2015/3/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on spectral reconstruction using optimization with their sparsity in MR spectroscopy |
| Sub Title (in English) | |
| Keyword(1) | magnetic resonance spectroscopy (MRS) |
| Keyword(2) | compressed sensing (CS) |
| Keyword(3) | sparse model |
| 1st Author's Name | Takenori OIDA |
| 1st Author's Affiliation | Graduate School of Engineering, Kyoto University() |
| 2nd Author's Name | Tomokazu MURASE |
| 2nd Author's Affiliation | Meiji University of Integrative Medicine |
| 3rd Author's Name | Masahiro UMEDA |
| 3rd Author's Affiliation | Meiji University of Integrative Medicine |
| Date | 2015-03-16 |
| Paper # | MBE2014-117,NC2014-68 |
| Volume (vol) | vol.114 |
| Number (no) | 515 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |