T Skyhøj Olsen

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Regional cerebral blood flow (rCBF) was measured in 23 patients with brain tumors using the 133Xe intra-carotid injection method and a 254 channel gamma camera. The glioblastomas (4) and astrocytomas (4) all showed hyperemia in the tumor and tumor-near region. This was also seen in several meningiomas (4 of 7 cases) in which most of the tumor itself did not(More)
Regional cerebral blood flow (rCBF) following carotid arteriography was studied in thirteen patients with classic migraine. Using the 133xenon intraarterial injection method, rCBF was measured in 254 areas in one hemisphere. Nine patients developed a characteristic attack following arteriography and were examined by a series of rCBF studies, spaced by(More)
This study investigates whether the cerebral blood flow reduction occurring in attacks of classic migraine is sufficient to cause neurologic deficits. Regional cerebral blood flow measured with the xenon 133 intracarotid injection technique was analyzed in 11 patients in whom a low-flow area developed during attacks of classic migraine. When measured with(More)
The CBF studies performed so far during attacks of migraine, may be interpreted as favouring "the vascular theory." This applies to migraine with aura as well as to migraine without aura. Migraine without aura may be due to mild focal CBF reduction--too mild to be detected by the available CBF techniques (i.e. 20% or less) and too mild to produce ischemia(More)
A very simple and low-cost brain dedicated, rapidly rotating Single Photon Emission Tomograph SPECT is described. Its use in following patients with ischemic stroke is illustrated by two middle cerebral artery occlusion cases, one with persistent occlusion and low CBF in MCA territory, and one with early lysis of the occlusion having high CBF (massive(More)
Measurements of CSF-albumin, and S/CSF-albumin in two groups of patients with small and large infarcts failed to show BBB damage to albumin in about one half of the patients. No significant difference was found between the two groups of patients in regard to the above-mentioned parameters. The localization of the infarcts (close to the CSF or deep in the(More)
Cerebral angiography was carried out in two diabetic patients in the evaluation of minor vascular ischemic episodes. A transient acute renal failure following cerebral angiography was accompanied by a transient comatose episode with severe unilateral neurological deficits. A functional depression of the injected hemisphere due to a contrast induced(More)
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