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Visual grading of 2D and 3D functional MRI compared with image-based descriptive measures

  • Magnetic Resonance
  • Published:
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Abstract

Objective

A prerequisite for successful clinical use of functional magnetic resonance imaging (fMRI) is the selection of an appropriate imaging sequence. The aim of this study was to compare 2D and 3D fMRI sequences using different image quality assessment methods.

Methods

Descriptive image measures, such as activation volume and temporal signal-to-noise ratio (TSNR), were compared with results from visual grading characteristics (VGC) analysis of the fMRI results.

Results

Significant differences in activation volume and TSNR were not directly reflected by differences in VGC scores. The results suggest that better performance on descriptive image measures is not always an indicator of improved diagnostic quality of the fMRI results.

Conclusion

In addition to descriptive image measures, it is important to include measures of diagnostic quality when comparing different fMRI data acquisition methods.

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Authors and Affiliations

  1. Division of Radiological Sciences, Radiology, IMH, Linköping University, Linköping, Sweden

    Mattias Ragnehed, Staffan Wirell, Örjan Smedby & Maria Engström

  2. Center for Medical Image Science and Visualization, CMIV, Linköping University, Linköping, Sweden

    Mattias Ragnehed, Olof Dahlqvist Leinhard, Johan Pihlsgård, Bo Jiang, Örjan Smedby, Maria Engström & Peter Lundberg

  3. Division of Radiological Sciences, Radiation Physics, IMH, Linköping University, Linköping, Sweden

    Olof Dahlqvist Leinhard, Johan Pihlsgård & Peter Lundberg

  4. Department of Radiology, Linköping University Hospital, Linköping, Sweden

    Staffan Wirell, Hannibal Sökjer & Patrik Fägerstam

  5. Department of Medical and Health Sciences, Division of Radiological Sciences/Radiology, Faculty of Health Sciences, Linköping University, 581 85, Linköping, Sweden

    Mattias Ragnehed

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  1. Mattias Ragnehed
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  2. Olof Dahlqvist Leinhard
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  10. Peter Lundberg
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Correspondence to Mattias Ragnehed.

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Ragnehed, M., Leinhard, O.D., Pihlsgård, J. et al. Visual grading of 2D and 3D functional MRI compared with image-based descriptive measures. Eur Radiol 20, 714–724 (2010). https://doi.org/10.1007/s00330-009-1578-0

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  • DOI: https://doi.org/10.1007/s00330-009-1578-0

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