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Magnetic resonance method and device for measuring a periodically varying fluid flow in an object

, : Magnetic resonance method and device for measuring a periodically varying fluid flow in an object. Official Gazette of the United States Patent & Trademark Office Patents 1261(3), Aug 20

The invention relates to a method for in vivo measurement of a periodically varying fluid flow in an object by means of magnetic resonance. The method includes a step for applying first and second additional magnetic field gradients in order to shift the phase of a reference magnetization, which phase shift relates to a net flow of the fluid during an interval between the application of the additional magnetic field gradients. According to the invention, near a phase of a period of the periodically varying fluid flow an excitation RF pulse is generated, the first additional gradient is applied and a first additional RF pulse is generated and near a corresponding phase of a second period of the periodically varying fluid flow a second additional RF pulse is generated and the second additional gradient is applied.


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