Optimized method for prevention of foldover artifacts in magnetic resonance tomography

US7388376B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Oliver Heid · Erlangen, DE
• Thomas Kluge · Vallendar, DE

Key dates

• Filing date: Nov 2, 2005
• Grant date: Jun 17, 2008
• Expiry date: Apr 13, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56545
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In an MRT method and apparatus with oversampling in at least one phase coding direction of a first region of interest to be visualized, an overview slice image is acquired across the entire subject to be examined in a selected slice, a marking input of the first image region of interest to be measured is detected in the overview slice image, and the first image region is expanded in at least one phase coding direction, dependent on the geometry of the first image region, the overview slice image, as well as the relative position of both image regions relative to one another, such that an expanded, oversampled second image region is obtained that completely contains the first image region and is foldover-free in this first image region.