Fine setting of phase shift angles using frequency-shifted signals
β Scribed by G. A. Makarov
- Publisher
- Springer US
- Year
- 1985
- Tongue
- English
- Weight
- 264 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0543-1972
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A new model-free method is presented that automatically corrects for phase shifts, frequency shifts, and additional lineshape distortions of one single resonance peak across a series of in vivo NMR spectra. All separate phase and frequency variations are quickly and directly derived from the common
## Abstract ## Purpose To improve the immunity of the proton resonance frequency shift (PRFS) method of MRI temperature mapping against magnetic field disturbances. Since PRFS is a phaseβsensitive method, it misinterprets magnetic field disturbances as artifact temperature changes. If not correcte