Spectrally weighted twisted projection imaging: Reducing T2 signal attenuation effects in fast three-dimensional sodium imaging
✍ Scribed by Fernando E. Boada; Gary X. Shen; Sam Y. Chang; Keith R. Thulborn
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 801 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
Abstract
A scheme for the reduction of T~2~ signal attenuation effects in three‐dimensional twisted projection imaging is presented. By purposely reducing the sample density at the high spatial frequencies, a considerable reduction in readout time is achieved. The reduction in readout time leads to decreased T~2~ signal attenuation which translates into improved signal‐to‐noise ratio (SNR). The SNR improvement is achieved without decreasing the image's resolution since the point spread function depends on the sample weighting as well as the T~2~ attenuation. The results indicate that SNR improvements of up to 40% can be achieved using the proposed scheme.