Nuclear magnetic resonance (NMR) multi-slice imaging...

Details Nuclear magnetic resonance (NMR) multi-slice imaging... Nuclear magnetic resonance (NMR) multi-slice imaging...

2005-05-03

2005-05-03

Shrivastav, Brij B. (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S307000

Reexamination Certificate

active

06888349

ABSTRACT:
A multi-slice NMR imaging method for recording N slices (N>1) from a measuring object, wherein for complete image reconstruction, an acquisition in m (m>1) repetition steps with different spatial encoding is used, with a magnetization preparation in the form of a saturation pulse which is selective with respect to chemical shift and which is applied P times (1≦P<N) in each repetition step such that through each of these chemical shift selective saturation pulses the spins to be saturated of one of the N slices in the measuring object are optimally saturated and consequently the signals of N-P slices are saturated only sub-optimally, is characterized in that the temporal sequence of the saturation pulses and/or the sequence of the acquisition of the differently spatially encoded signals of the individual slices is permuted such that after termination of the acquisition, for each slice the signals with identical spatial encoding were recorded in the same fashion also with respect to saturation preparation. This produces uniform fat or water suppression for all slices.

REFERENCES:
patent: 6272369 (2001-08-01), Tan
Magnetic Resonance in Medicine 43:577-582 (2000) “TSE-Sequences With Spin-Echo Contrast”.

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