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AJNR - American Journal of Neuroradiology

Published ahead of print on July 24, 2008
doi: 10.3174/ajnr.A1234

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Chronic Middle Cerebral Artery Occlusion: A Hemodynamic and Metabolic Study with Positron-Emission Tomography

M. Tanaka^a,b, E. Shimosegawa^a, K. Kajimoto^a, Y. Kimura^a, H. Kato^a, N. Oku^a, M. Hori^b, K. Kitagawa^c and J. Hatazawa^a

^a Departments of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Osaka, Japan
^b Departments of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
^c Departments of Neurology, Osaka University Graduate School of Medicine, Osaka, Japan

View larger version (55K): [in this window] [in a new window]   Fig 1. Locations of regions of interest: cortical territories of the ACA, MCA, PCA, and the corona radiata. The watershed areas between the ACA and MCA (AWS) and the watershed areas between the MCA and PCA (PWS) were excluded from the analysis.

View larger version (15K): [in this window] [in a new window]   Fig 2. Angiographic assessment of the patients. This diagram shows schematic representations of the circle of Willis and the major intracranial vessels in each patient. Black lesions indicate the location of the stenosis or occlusion. Acom indicates the anterior communicating artery; Pcom, the posterior communicating artery; Rt; right, Lt; left; M1-M3, collaterals reconstituting the M1, M2, or M3 segments; None, little or no significant reconstitution of the territory of the occluded vessel.