Whole body MRI intensity standardization

Florian Jäger, László Nyúl, Bernd Frericks, Frank Wacker, Joachim Hornegger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

A major problem of segmentation of magnetic resonance images is that intensities are not standardized like in computed tomography. This article deals with the correction of inter volume intensity differences that lead to a missing anatomical meaning of the observed gray values. We present a method for MRI intensity standardization of whole body MRI scans. The approach is based on the alignment of a learned reference and the current histogram. Each of these histograms is at least 2-d and represents two or more MRI sequences (e.g., T1- and T2-weighted images). From the matching a non-linear correction function is gained which describes a mapping between the intensity spaces and consequently adapts the image statistics to a known standard. As the proposed intensity standardization is based on the statistics of the data sets only, it is independent from spatial coherences or prior segmentations of the reference and newly acquired images. Furthermore, it is not designed for a particular application, body region or acquisition protocol. The method was evaluated on whole body MRI scans containing data sets acquired by T1/FL2D and T2/TIRM sequences. In order to demonstrate the applicability, examples from noisy and pathological image series acquired on a whole body MRI scanner are given.

Original languageEnglish
Title of host publicationBildverarbeitung fur die Medizin 2007
Subtitle of host publicationAlgorithmen - Systeme - Anwendungen, BVM 2007 - Proceedings des Workshops
PublisherKluwer Academic Publishers
Pages459-463
Number of pages5
ISBN (Print)3540710906, 9783540710905
DOIs
Publication statusPublished - 2007
EventWorkshops Bildverarbeitung fur die Medizin: Algorithmen - Systeme - Anwendungen, BVM 2007 - Workshop on Image Processing for Medicine: Algorithms - Systems - Applications, BVM 2007 - Munich, Germany
Duration: Mar 25 2007Mar 27 2007

Publication series

NameInformatik aktuell
ISSN (Print)1431-472X

Other

OtherWorkshops Bildverarbeitung fur die Medizin: Algorithmen - Systeme - Anwendungen, BVM 2007 - Workshop on Image Processing for Medicine: Algorithms - Systems - Applications, BVM 2007
CountryGermany
CityMunich
Period3/25/073/27/07

ASJC Scopus subject areas

  • Modelling and Simulation

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  • Cite this

    Jäger, F., Nyúl, L., Frericks, B., Wacker, F., & Hornegger, J. (2007). Whole body MRI intensity standardization. In Bildverarbeitung fur die Medizin 2007: Algorithmen - Systeme - Anwendungen, BVM 2007 - Proceedings des Workshops (pp. 459-463). (Informatik aktuell). Kluwer Academic Publishers. https://doi.org/10.1007/978-3-540-71091-2_92