Magnetic resonance imaging method and magnetic resonance imaging apparatus that compensate for slab distortion by selective slab thickness expansion

US10126392B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Guo Bin Li · Glückstadt, DE
• Dominik Paul · Bubenreuth, DE

Key dates

• Filing date: Dec 20, 2012
• Grant date: Nov 13, 2018
• Expiry date: Dec 1, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5617
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A magnetic resonance imaging method and imaging device are disclosed. The magnetic resonance imaging method includes dividing the current slab of an imaging region into an initial number of detection sub-slabs, and expanding the encoded thickness of each detection sub-slab according to a predetermined initial expansion factor, subjecting each expanded detection sub-slab to deformation detection using the first fast spin echo sequence, and determining the position of each imaging sub-slab of the current slab and an expansion factor corresponding to each imaging sub-slab, wherein the readout gradient of the first fast spin echo sequence is applied in the direction of the slice selection gradient, expanding the encoded thickness of each imaging sub-slab of the current slab of the imaging region on the basis of the determined position of each imaging sub-slab and the corresponding expansion factor, and performing an imaging scan of each expanded imaging sub-slab using a second fast spin echo sequence.