Additional Supporting Information may be found in the online version of this article.

ANA_22500_sm_suppinfoappendix1.doc30KSupporting Information Appendix1
ANA_22500_sm_suppinfoappendix2.doc46KSupporting Information Appendix2
ANA_22500_sm_suppinfoFig1.tif910KSupporting Information Figure 1. Graph showing spread of responses to the 14 questions from the modified QUADAS tool applied to all 21 MR and 10 CT papers that provided any perfusion threshold data. Questions are given in the Supporting Information, Appendix 2
ANA_22500_sm_suppinfotable1.rtf1017KSupporting Information Table 1

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