METHOD AND SYSTEM FOR DETERMINING SPEED OF A LIQUID BY MRI

摘要

The invention relates to a method for determining the speed of a liquid flowing in a tube by magnetic resonance imaging. The capture of an image is carried out through a gradient echo sequence according to a repetition time (TR). The method comprises the steps of: - defining (30) a cross-section of the tube having a predetermined thickness (Tck) to carry out imaging of a section of the tube corresponding to the cross-section; - parameterizing (32) the cross-section thickness (Tck) and the repetition time (TR) such that the critical speed, defined as division of the cross-section thickness (Tck) by the repetition time (TR), is less than the minimum estimated speed of said liquid; - capturing (34) an image of said section, and - estimating (36) the speed of a liquid in each point of the image as an inverse function of the image point signal intensity.