Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2006-12-20
2009-08-18
Shrivastav, Brij B. (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S309000, C324S314000
Reexamination Certificate
active
07576537
ABSTRACT:
The present invention aims to receive a signal of tissue long in T2 at a relatively high level and suppress artifacts. When a magnetic resonance frequency of a component intended for measurement is assumed to be Ω and the frequency corresponding to a repetition time TR is assumed to be ωo, an RF pulse obtained by modulating a chemical shift SAT pulse for reducing a signal of a frequency Ω with cos (ωo·t) is applied as a leading pulse Po and thereafter a pulse sequence of Balanced SSFP is applied. Since a signal leading to the occurrence of artifacts is reduced owing to the effect of the leading pulse, the artifacts can be suppressed. Since a transient state is long in the same manner as conventional, such a signal of tissue long in T2 can be received at the relatively high level and contrast can be kept high by executing data acquisition in the transient state.
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Armstrong Teasdale LLP
Fetzner Tiffany A
GE Medical Systems Global Technology Company LLC
Shrivastav Brij B.
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