Magnetic Resonance Method Using a Phase-modulated Pulse Train with a Constant Small Flip Angle

The method for performing magnetic resonance measurements on a sample according to the present invention, in which a first predetermined number of pulse trains each comprising a second predetermined number of pulses spaced by a predetermined time interval (?t) are applied for excitation each having a constant amplitude, is characterized in that the pulse trains are modulated by a bent function, wherein after each pulse data is sampled. Preferably a square number m 2 of pulses is generated being constant in power, and the Walsh transform of the sequence of their phases is constant in power, too. This means that the power of the excitation in time and frequency domain is constant. The method according to the invention allows the reduction of battery capacity for mobile NMR applications and to undercut SAR values due to the small excitation power necessary to create time signals 5 with reasonable signal to noise ratio.

Attached files:


Patents:
WO 2,010,043,548

Inventor(s): BLUEMICH BERNHARD [DE]; GREFERATH MARCUS [IE]; BYRNE EIMEAR [IE]; GONG QINGXIA [DE]

Type of Offer: Sale



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