Abstract: A magnetic resonance method and device for characterizing the pattern of flow of a flowing fluid including the steps of flowing the fluid through a conduit, wherein a segment of the conduit defines a measurement volume, subjecting the flowing fluid in the measurement volume to a magnetic field gradient generally in the direction of flow of the fluid, wherein the magnetic field gradient in the direction of flow comprises a generally fixed value in the measurement volume, and a magnetic resonance pulse, acquiring at least one odd echo from the magnetic resonance pulse, wherein the echo comprises signals from streamlines in the flowing fluid in the measurement volume, processing the signals to determine a flow behaviour index for the flowing fluid, determining an average velocity of the flowing fluid, and calculating velocity as a function of the radius of the conduit using the flow behaviour index and the average velocity and relating the function to a pattern of flow to characterize the pattern of flow exhibit

Abstract: A magnetic resonance method and device for method for characterizing the pattern of flow of a flowing fluid including processing at least one odd echo acquired from radio frequency pulses of a measurement volume containing a flowing fluid, wherein the echo includes signals from streamlines in the flowing fluid in the measurement volume, processing the signals to concurrently determine a signal magnitude and a net phase accumulation and using the signal magnitude and the net phase accumulation to determine a flow behaviour index and an average velocity for the flowing fluid, and calculating velocity as a function of the radius of the conduit using the flow behaviour index and the average velocity and relating the function to a pattern of flow to characterize the pattern of flow exhibited by the flowing fluid.

Abstract: A method and system for generating a magnetic resonance pulse sequence for the investigation of a sample by magnetic resonance, including generating a selective scan comprising an adiabatic inversion magnetic resonance pulse sequence wherein the magnetization is inverted from z to ?z inside a frequency band, following the selective scan with a non-selective scan comprising a CPMG magnetic resonance pulse sequence wherein the magnetization is maintained along z, obtaining a first signal from the selective scan, obtaining a second signal from the non-selective scan, and subtracting the first and second signals to obtain a resulting signal with only selected frequency components for slice selective investigation of the sample.