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High-Field fMRI

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Abstract

In recent years, functional magnetic resonance imaging (fMRI) has become a widely used approach for neuroscience. However, this method has the potential to be improved with regard to both spatial and temporal resolution. The blood-oxygenation level-dependent contrast (BOLD) represents signal changes in T2- or T2*-weighted images. These sequences are presumed to be well suited to high magnetic field strength, as fMRI sequences benefit from higher signal-to-noise ratio (SNR) and higher signal in BOLD contrast images (Vaughan et al. 2001). However, their sensitivity to susceptibility also causes problems, e.g. in-plane dephasing and signal dropouts near tissue-air boundaries.

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Authors and Affiliations

  1. Department for Radiology, University Clinic for Neuroradiology, Medical University Innsbruck, Anichstr 35, Innsbruck, 6020, Austria

    Elke R. Gizewski MHBA

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  1. Elke R. Gizewski MHBA
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Correspondence to Elke R. Gizewski MHBA .

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Editors and Affiliations

  1. MRI, Bahnhofplatz 3, Zürich, 8001, Switzerland

    Stephan Ulmer

  2. Inst. Neuroradiologie, Universitätsklinikum Schleswig-Holstein, Arnold-Heller-Str. 2, Kiel, 24105, Germany

    Olav Jansen

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Gizewski, E.R. (2013). High-Field fMRI. In: Ulmer, S., Jansen, O. (eds) fMRI. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-34342-1_5

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  • DOI: https://doi.org/10.1007/978-3-642-34342-1_5

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