Conference proceeding
HYPR: constrained reconstruction for enhanced SNR in dynamic medical imaging
Proceedings of SPIE, Vol.6913(1), pp.691305-691309
Medical Imaging 2008: Physics of Medical Imaging
03/06/2008
DOI: 10.1117/12.771413
Abstract
During the last eight years our group has developed radial acquisitions with angular undersampling factors of several hundred that accelerate MRI in selected applications. As with all previous acceleration techniques, SNR typically falls as least as fast as the inverse square root of the undersampling factor. This limits the SNR available to support the small voxels that these methods can image over short time intervals in applications like time-resolved contrast-enhanced MR angiography (CE-MRA). Instead of processing each time interval independently, we have developed constrained reconstruction methods that exploit the significant correlation between temporal sampling points. A broad class of methods, termed HighlY Constrained Back PRojection (HYPR), generalizes this concept to other modalities and sampling dimensions.
Details
- Title: Subtitle
- HYPR: constrained reconstruction for enhanced SNR in dynamic medical imaging
- Creators
- C Mistretta - University of Wisconsin–MadisonO Wieben - University of Wisconsin–MadisonJ Velikina - University of Wisconsin–MadisonY Wu - University of Wisconsin–MadisonK Johnson - University of Wisconsin–MadisonF Korosec - University of Wisconsin–MadisonO Unal - University of Wisconsin–MadisonG Chen - University of Wisconsin–MadisonS Fain - University of Wisconsin–MadisonB Christian - University of Wisconsin–MadisonO Nalcioglu - University of California, IrvineR. A Kruger - OptoSonicsW Block - University of Wisconsin–MadisonA Samsonov - University of Wisconsin–MadisonM Speidel - University of Wisconsin–MadisonM Van Lysel - University of Wisconsin–MadisonH Rowley - University of Wisconsin–MadisonM Supanich - University of Wisconsin–MadisonP Turski - University of Wisconsin–MadisonYan Wu - University of Wisconsin–MadisonJ Holmes - University of Wisconsin–MadisonS Kecskemeti - University of Wisconsin–MadisonC Moran - University of Wisconsin–MadisonR O'Halloran - University of Wisconsin–MadisonL Keith - University of Wisconsin–MadisonA Alexander - University of Wisconsin–MadisonE Brodsky - University of Wisconsin–MadisonJ. E Lee - University of Wisconsin–MadisonT Hall - University of Wisconsin–MadisonJ Zagzebski - University of Wisconsin–Madison
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.6913(1), pp.691305-691309
- Conference
- Medical Imaging 2008: Physics of Medical Imaging
- DOI
- 10.1117/12.771413
- ISSN
- 0277-786X
- Language
- English
- Date published
- 03/06/2008
- Academic Unit
- Electrical and Computer Engineering; Roy J. Carver Department of Biomedical Engineering; Radiology; Health and Human Physiology
- Record Identifier
- 9984275054402771
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