Method and MR apparatus for dynamic frequency detection in...

Details Method and MR apparatus for dynamic frequency detection in... Method and MR apparatus for dynamic frequency detection in...

2007-05-08

2007-05-08

Arana, Louis M. (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S306000

Reexamination Certificate

active

11119470

ABSTRACT:
In a method for dynamic frequency detection of the resonance frequency in magnetic resonance spectroscopy, by measuring navigator signals at the same point in time in each of a number of successive sequence passes, and by comparing the navigator signals, a frequency shift of the resonance frequency is determined on the basis of which the respective individual spectrum obtained from each sequence repetition is corrected with respect to the measured frequency shift.

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“Phase Coherent Averaging in Magnetic Resonance Spectroscopy Using Interleaved Navigator Scans: Compensation of Motion Artifacts and Magnetic Field Instabilities,” Thiel et al., Magnetic Resonance in Medicine, vol. 47 (2002) pp. 1077-1082.

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