Please use this identifier to cite or link to this item: http://ahro.austin.org.au/austinjspui/handle/1/9895
Title: A digital map of middle cerebral artery infarcts associated with middle cerebral artery trunk and branch occlusion.
Authors: Phan, Thanh G;Donnan, Geoffrey A;Wright, Peter M;Reutens, David C
Affiliation: Neuroimaging Division, National Stroke Research Institute and The University of Melbourne, Austin & Repatriation Medical Centre, Melbourne, Australia.
Issue Date: 7-Apr-2005
Citation: Stroke; A Journal of Cerebral Circulation 2005; 36(5): 986-91
Abstract: Knowledge of the topographic distribution of infarcts of the middle cerebral artery (MCA) may give insight into the limits of the arterial territory and infarct mechanism and may influence the decision to use thrombolytic therapy. We describe the creation of a digital atlas of MCA (DA-MCA) infarction associated with MCA branch and trunk occlusion using magnetic resonance (MR) techniques.Hemispheric infarcts, with evidence of MCA trunk or branch occlusion, were manually segmented into binary images, linearly registered into a common stereotaxic coordinate space, and averaged to yield the probability of involvement by infarction at each voxel. Comparisons were made with existing maps of the MCA territory.Twenty-eight patients with median age of 74 years (range, 26 to 87 years) were studied. On the DA-MCA, the highest frequency of infarction was within the striatocapsular region, centrum semiovale, and the insula. The mean and maximal MCA infarct volumes were 195.5 cm3 and 366.3 cm3, respectively. Comparison with published maps showed that the most common difference from the DA-MCA was in the superomedial extent of the MCA territory. Some maps showed the MCA territory reaching the interhemispheric fissure, whereas in the DA-MCA it did not. There was a lower variability in the anterior boundary of the MCA territory compared with its posterior counterpart.We have created a digital atlas of MCA infarction using MR imaging techniques. This approach may be useful to establish the distribution of the MCA and other arterial territories and the border zones between them with greater certainty.
Internal ID Number: 15817891
URI: http://ahro.austin.org.au/austinjspui/handle/1/9895
DOI: 10.1161/01.STR.0000163087.66828.e9
URL: http://www.ncbi.nlm.nih.gov/pubmed/15817891
Type: Journal Article
Subjects: Adult
Aged
Echo-Planar Imaging.methods
Female
Humans
Image Interpretation, Computer-Assisted
Infarction, Middle Cerebral Artery.complications.diagnosis
Male
Middle Aged
Stroke.etiology
Appears in Collections:Journal articles

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