T-1- and T-2*-dominant extravasation correction in DSC-MRI: Part II-predicting patient outcome after a single dose of cediranib in recurrent glioblastoma patients

Kyrre E. Emblem*, Atle Bjornerud, Kim Mouridsen, Ronald J. H. Borra, Tracy T. Batchelor, Rakesh K. Jain, A. Gregory Sorensen

*Bijbehorende auteur voor dit werk

    OnderzoeksoutputAcademicpeer review

    31 Citaten (Scopus)

    Samenvatting

    A 'vascular normalization index' (VNI) based on the changes in the magnetic resonance imaging (MRI) parameters K-trans and cerebral blood volume (CBV), combined with blood sampling, has been shown to correlate with patient outcome in recurrent glioblastoma after a single dose of antiangiogenic therapy. Here, by applying a novel contrast agent extravasation correction method insensitive to variations in tissue mean transit time, we show that a similar VNI parameter can be derived from a single dynamic susceptibility contrast MR acquisition rather than the three parameters shown previously. Our results show that this new VNI parameter, which combines changes in tumoral CBV and an apparent transfer constant from our leakage correction method, may provide prognostic information in an even simpler manner than prior efforts. Journal of Cerebral Blood Flow & Metabolism (2011) 31, 2054-2064; doi:10.1038/jcbfm.2011.39; published online 20 April 2011

    Originele taal-2English
    Pagina's (van-tot)2054-2064
    Aantal pagina's11
    TijdschriftJournal of Cerebral Blood Flow and Metabolism
    Volume31
    Nummer van het tijdschrift10
    DOI's
    StatusPublished - okt-2011

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