Single Image Signal-to-Noise Ratio Estimation for Magnetic Resonance Images
β Scribed by K. S. Sim; M. A. Lai; C. P. Tso; C. C. Teo
- Publisher
- Springer US
- Year
- 2009
- Tongue
- English
- Weight
- 804 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0148-5598
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π SIMILAR VOLUMES
A general theory of signal-to-noise ratio (SNR) in simultaneous acquisition of spatial harmonics (SMASH) imaging is presented, and the predictions of the theory are verified in imaging experiments and in numerical simulations. In a SMASH image, multiple lines of k-space are generated simultaneously
## Abstract Measuring signalβtoβnoise ratio (SNR) for parallel MRI reconstructions is difficult due to spatially dependent noise amplification. Existing approaches for measuring parallel MRI SNR are limited because they are not applicable to all reconstructions, require significant computation time
The fundamental limit for NMR imaging is set by an intrinsic signal-to-noise ratio (SNR) for a particular combination of rf antenna and imaging subjects. The intrinsic SNR is the signal from a small volume of material in the sample competing with electrical noise from thermally generated, random noi