Partial fourier partially parallel imaging.
The techniques of partial Fourier (PF) and partially parallel imaging have been combined using a constrained reconstruction technique. The benefits compared with the individual techniques are reduced imaging time and/or an increase in signal-to-noise ratio. Low-resolution phase maps and coil sensiti...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2005
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| _version_ | 1797099620974723072 |
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| author | Bydder, M Robson, M |
| author_facet | Bydder, M Robson, M |
| author_sort | Bydder, M |
| collection | OXFORD |
| description | The techniques of partial Fourier (PF) and partially parallel imaging have been combined using a constrained reconstruction technique. The benefits compared with the individual techniques are reduced imaging time and/or an increase in signal-to-noise ratio. Low-resolution phase maps and coil sensitivities may be obtained using autocalibration or from a prescan followed by additional processing. Minor phase artifacts that are introduced by relying on conjugate symmetry can be reduced using a novel regularization scheme to vary the degree to which PF is used in the reconstruction. A nonrectilinear reconstruction algorithm is presented and the potential for motion artifact reduction is investigated using robust reconstruction. |
| first_indexed | 2024-03-07T05:26:16Z |
| format | Journal article |
| id | oxford-uuid:e0ac9c11-4996-4cb5-a848-53c4c2ceb6fa |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:26:16Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:e0ac9c11-4996-4cb5-a848-53c4c2ceb6fa2022-03-27T09:48:55ZPartial fourier partially parallel imaging.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e0ac9c11-4996-4cb5-a848-53c4c2ceb6faEnglishSymplectic Elements at Oxford2005Bydder, MRobson, MThe techniques of partial Fourier (PF) and partially parallel imaging have been combined using a constrained reconstruction technique. The benefits compared with the individual techniques are reduced imaging time and/or an increase in signal-to-noise ratio. Low-resolution phase maps and coil sensitivities may be obtained using autocalibration or from a prescan followed by additional processing. Minor phase artifacts that are introduced by relying on conjugate symmetry can be reduced using a novel regularization scheme to vary the degree to which PF is used in the reconstruction. A nonrectilinear reconstruction algorithm is presented and the potential for motion artifact reduction is investigated using robust reconstruction. |
| spellingShingle | Bydder, M Robson, M Partial fourier partially parallel imaging. |
| title | Partial fourier partially parallel imaging. |
| title_full | Partial fourier partially parallel imaging. |
| title_fullStr | Partial fourier partially parallel imaging. |
| title_full_unstemmed | Partial fourier partially parallel imaging. |
| title_short | Partial fourier partially parallel imaging. |
| title_sort | partial fourier partially parallel imaging |
| work_keys_str_mv | AT bydderm partialfourierpartiallyparallelimaging AT robsonm partialfourierpartiallyparallelimaging |