Method of and device for determining a nuclear magnetization dis

Details Method of and device for determining a nuclear magnetization dis Method of and device for determining a nuclear magnetization dis

1984-05-25

1986-11-04

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324311, 324309, G01R 3320

Patent

active

046212353

ABSTRACT:
During measurement cycles for generating and sampling FID signals in NMR imaging devices, a 180.degree. pulse and subsequently a 90.degree. excitation pulse are added to the pulse sequence. The 180.degree. pulse produces an additional echo signal. During (the maximum of) the echo signal, the 90.degree. pulse is generated. The waiting period occurring before the beginning of a next measurement cycle can thus be substantially reduced without giving rise to a significant signal loss in the echo signals to be generated during said cycle. In addition to a reduction of the measurement time, NMR images with different contrasts (other intensity distribution) can be provided.

REFERENCES:
patent: 4471306 (1984-09-01), Edelstein

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