AnalyzeDirect

Takasawa M, Jones PS, Guadagno JV, Christensen S, Fryer TD, Harding S, Gillard JH, Williams GB, Aigbirhio FI, Warburton EA, Østergaard L, Baron JC. How reliable is perfusion MR in acute stroke? Validation and determination of the penumbra threshold against quantitative PET. Stroke. March 2008;39(3):870-877.

Full Text – Open Access

Publication Date
March 2008

How Analyze was Used
“Using Analyze 7.0 (AnalyzeDirect Inc, Lenexa, Kan), we symmetrically created 16-mm-diameter circular regions of interest (ROIs) on each patient’s T2 images based on gyral anatomy, after eliminating cerebrospinal fluid voxels by segmentation of the T1-weighted scans in SPM2 and previously published thresholds [Falcao et al. 2004].”

Keywords
Aged
Blood Volume
Brain/metabolism
Cerebrovascular Circulation
Differential Threshold
Female
Humans
Magnetic Resonance Angiography/standards
Male
Oxygen/blood/metabolism
Positron-Emission Tomography (PET)/standards
Stroke/blood/diagnosis/physiopathology
Time Factors

Author Affiliation(s)
Stroke Research Group, Department of Clinical Neurosciences, University of Cambridge, Cambridge, England. (MT, PSJ, JVG, FIA, EAW, JCB)

Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, England. (TDF, SH, JHG, GBW, FIA, JCB)

Department of Radiology, University of Melbourne, Royal Melbourne Hospital, Melbourne, Australia. (SC)

Department of Neuroradiology, Danish National Research Foundations Center of Functionally Integrative Neuroscience, Aarhus University Hospital, Aarhus, Denmark. (LØ)

ID# 1418

Tags: Aged, Blood Volume, Brain/metabolism, Cerebrovascular Circulation, Differential Threshold, Female, Humans, Magnetic Resonance Angiography/standards, Male, Oxygen/blood/metabolism, Positron-Emission Tomography (PET)/standards, Stroke/blood/diagnosis/physiopathology, Time Factors