G - Physics – 01 – N
Patent
G - Physics
01
N
324/1
G01N 24/08 (2006.01) G01R 33/58 (2006.01)
Patent
CA 1280161
ABSTRACT Magnetic resonance imaging method, and device for determining the pulseangle of an r.f. electromagnetic pulse. The known magnetic resonance imaging method of determining the r.f. power or pulse angle of an r.f. electromagnetic 90°-pulse or 180°-pulse has the drawback that the measurement inaccuracy is often high, that the experimentation time is comparatively long and that its use is limited to r.f. electromagnetic 90°-pulses or 180°-pulses only. In order to mitigate these drawbacks, it is proposed to determine the pulse angle of an r.f. electromagnetic pulse having a pulse angle a from two out of five echo resonance signals, including one stimulated echo resonance signal, generated by means of three r.f. electromagnetic .alpha.°-pulses, a having an arbitrary value (calibration phase), after which any .beta. can be adjusted by adaptation of the applied r.f. power. Figure 1.
532187
Van Der Meulen Peter
Van Yperen Gerrit H.
Fetherstonhaugh & Co.
N.v. Philips Gloeilampenfabrieken
Van Der Meulen Peter
Van Yperen Gerrit H.
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