Method and apparatus for the acquisition of data for magnetic resonance imaging

US6400151B1 · kind B1 · utility

Inventors

• Axel Haase · Veitshöchheim, DE
• Peter Jakob · Würzburg, DE
• Claudia Hillenbrand · Cleveland Heights, US
• Dietbert Hahn · Kronach, DE

Key dates

• Filing date: Jan 13, 2000
• Grant date: Jun 4, 2002
• Expiry date: Jan 13, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5615
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In order to acquire data for an image representation which shows the spatial distribution of the magnetic resonance behavior of an object within a selected localized region, the relevant localized region is arranged in a stationary magnetic field and is subjected to a sequence of high frequency pulses and pulses of magnetic field gradients in different spatial directions, such that a succession of magnetic resonance signals appears. These signals are read out by scanning under the influence of a read gradient and are used as sets of data for the filling of the K-space. In accordance with the invention, at least two different sequences of high frequency pulses and magnetic field gradient pulses are used, which differ in at least one of the features of the signal creation responsible for different aspects of the image quality. These sequences are executed one after another in time, with the magnetic resonance signals read out for the different sequences being collated in different bands of the K-space.