Abstract
Of the 47 patients with focal cerebral ischemia (FCI), 26 patients had completed stroke, 5 suffered from severe head injury, and 16 patients had anterior circulation aneurysms. Twenty-one stroke patients underwent bypass surgery and all traumatic patients underwent cerebral revascularization by omental graft. Aneurysm patients were surgically treated by neck clipping. In seven of them, aneurysm were occluded by nonferromagnetic (NFM) Ni-Ti alloy clips. In each case, comparative magnetic resonance imaging (MRI), computerized tomography (CT), and angiography (AG) findings were evaluated both before and after operation. MRI was much more sensitive than CT for detecting the ischemic tissue in all groups of patients. The difference in infarct area appreciated by MRI and CT in stroke patients turned out to be determined by the time between the onset of ictus and examination. MRI was particularly valuable for following up patients with FCI after cerebral revascularization by bypass surgery and omental graft. MRI was capable of replacing both postoperative AG and CT in patients operated on with NFM clips.
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Krivoshapkin, A.L., Streltsova, G.P. & Jacobson, M.G. Clinical magnetic resonance imaging study of focal cerebral ischemia. MAGMA 2, 323–326 (1994). https://doi.org/10.1007/BF01705263
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DOI: https://doi.org/10.1007/BF01705263