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Signal‐to‐noise measurements in magnitude images from NMR phased arrays
Open accessAbstract
A method is proposed to estimate signal‐to‐noise ratio (SNR) values in phased array magnitude images, based on a region‐of‐interest (ROI) analysis. It is shown that the SNR can be found by correcting the measured signal intensity for the noise bias effects and by evaluating the noise variance as the mean square value of all the pixel intensities in a chosen background ROI, divided by twice the number of receivers used. Estimated SNR values are shown to vary spatially within a bound of 20% with respect to the true SNR values as a result of noise correlations between receivers.
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Cited by
Dietrich, O., Raya, J. G., Reeder, S. B., Reiser, M. F., & Schoenberg, S. O. (2007) · Journal of Magnetic Resonance Imaging · doi:10.1002/jmri.20969 · Cited by 992
Advances in diffusion MRI acquisition and processing in the Human Connectome Project
Sotiropoulos, S. N., Jbabdi, S., Xu, J., Andersson, J. L., Moeller, S., Auerbach, E. J., Glasser, M. F., Hernandez, M., Sapiro, G., Jenkinson, M., et al. (2013) · NeuroImage · doi:10.1016/j.neuroimage.2013.05.057 · Cited by 891
Diffusion MRI noise mapping using random matrix theory
Veraart, J., Fieremans, E., & Novikov, D. S. (2016) · Magnetic Resonance in Medicine · doi:10.1002/mrm.26059 · Cited by 773
Pushing the limits of in vivo diffusion MRI for the Human Connectome Project
Setsompop, K., Kimmlingen, R., Eberlein, E., Witzel, T., Cohen-Adad, J., McNab, J. A., Keil, B., Tisdall, M. D., Hoecht, P., Dietz, P., et al. (2013) · NeuroImage · doi:10.1016/j.neuroimage.2013.05.078 · Cited by 545
Clinical intravoxel incoherent motion and diffusion MR imaging: Past, present, and future
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Metadata
- Authors
- Constantinides, C. D., Atalar, E., & McVeigh, E. R.
- Venue
- Magnetic Resonance in Medicine
- Publisher
- Wiley
- Published
- 1997-11
- Volume
- 38
- Issue
- 5
- Pages
- 852-857
- ISSN
- 0740-3194 (ISSN-L)
- 1522-2594
- OpenAlex
- W2167818248
- Cited by
- 510
- References
- 0
- FWCI
- 1.51
- Type
- journal article
- Language
- en
- Open access
- green
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- Constantinides, C. D., Atalar, E., & McVeigh, E. R. (1997). Signal‐to‐noise measurements in magnitude images from NMR phased arrays. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.1910380524
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