Method and apparatus to correct noise effects in quantitative techniques in magnetic resonance imaging

US10234528B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Brian Dale · Euclid, US
• Stephan Kannengiesser · Erlangen, DE
• Berthold Kiefer · Erlangen, DE
• Marcel Dominik Nickel · Herzogenaurach, DE
• Xiaodong Zhong · Marietta, US

Key dates

• Filing date: Sep 18, 2015
• Grant date: Mar 19, 2019
• Expiry date: Mar 23, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56341
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a method to correct noise effects in magnetic resonance (MR) images, which is executed in a processor (computer), the processor executes a fitting algorithm in order to calculate initial values for each of selected variables in signal model that models noise effects in a modeled, noise-containing MR image. The processor then iteratively executes the same or a different fitting algorithm, in order to generate final values for each of the selected variables. The processor is provided with an actual, acquired MR image that contains noise, and the processor uses the final values of the selected variables to calculate synthetic signal intensities in the MR image, thereby producing a synthetic MR image with no noise bias effects of errors. This synthetic image is made available in electronic form at an output of the processor, as a data file.