Visual Grading of 2D and 3D fMRI compared to image based descriptive measures
2010 (English)In: European Radiology, ISSN 0938-7994, E-ISSN 1432-1084, Vol. 20, no 3, 714-724 p.Article in journal (Refereed) Published
A prerequisite for successful clinical use of functional Magnetic Resonance Imaging (fMRI) is the selection of an appropriate imaging sequence. In this paper, 2D and 3D fMRI sequences were compared using different image quality assessment 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. It was found that 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. In conclusion, in addition to descriptive image measures, it is important to include measures of diagnostic quality when comparing different fMRI data acquisition methods.
Place, publisher, year, edition, pages
Berlin / Heidelberg: Springer , 2010. Vol. 20, no 3, 714-724 p.
National CategoryMedical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-17994DOI: 10.1007/s00330-009-1578-0ISI: 000274544800023PubMedID: 19727748OAI: oai:DiVA.org:liu-17994DiVA: diva2:213956
The original publication is available at www.springerlink.com: Mattias Ragnehed, Olof Dahlqvist Leinhard, Johan Pihlsgård, Staffan Wirell, Hannibal Sökjer, Patrik Fägerstam, Bo Jiang, Örjan Smedby, Maria Engström and Peter Lundberg, Visual Grading of 2D and 3D fMRI compared to image based descriptive measures, 2010, European Radiology, (20), 3, 714-724. http://dx.doi.org/10.1007/s00330-009-1578-0 Copyright: Springer Science Business Media http://www.springerlink.com/2009-04-302009-04-302015-10-09Bibliographically approved