The effect of pharmacologically increased blood pressure on the brain circulation. Angiographic investigation of arterial diameter and blood flow in patients with normal and pathologic angiograms. (Preliminary report.)
| Autor: | H. Magun, R. Rivoir, P. Huber |
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| Rok vydání: | 1971 |
| Předmět: |
medicine.medical_specialty
Neurology Blood Pressure Cerebral circulation Phenols Internal medicine Phenethylamines medicine Methods Humans Radiology Nuclear Medicine and imaging In patient cardiovascular diseases Sympathomimetics Neuroradiology business.industry Brain Neoplasms Blood flow Cerebral Angiography Cerebrovascular Disorders Blood pressure Carotid Arteries Ethanolamines Regional Blood Flow Continuous noninvasive arterial pressure Cardiology Neurology (clinical) Neurosurgery Cardiology and Cardiovascular Medicine business |
| Zdroj: | Neuroradiology. 3(2) |
| ISSN: | 0028-3940 |
| Popis: | The cerebral angiograms of patients with cerebrovascular diseases and intracranial tumours obtained under normal and pharmacologically increased blood pressure were compared to those from patients without angiographically detectable lesions. Changes in arterial diameter, circulation time and internal carotid blood flow were examined. Arterial diameter was measured by a split-image focusing technique, internal carotid blood flow by a semiquantitative densitometric method. Patients with a normal angiogram and without clinical evidence of a cerebrovascular disease (so called control group) showed a narrowing of the arteries during acute increase of blood pressure, while internal carotid blood flow and circulation time remained virtually constant. The abnormal behaviour of arterial diameter and circulation in patients with recent cerebral lesions, especially cerebrovascular diseases, and in patients with intracranial tumours is discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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