Pressure measurements in arterial feeders of brain arteriovenous malformations before and after endovascular embolization
| Autor: | F. Kaemmerer, Hans Henkes, Elina Miloslavski, Stefan Brew, T. F. Gotwald, D. Kuehne |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
Intracranial Arteriovenous Malformations Male medicine.medical_specialty medicine.medical_treatment Embolization procedure Hemodynamics Blood Pressure Catheterization medicine Transducers Pressure Humans Radiology Nuclear Medicine and imaging Embolization medicine.diagnostic_test Vascular disease business.industry Arteriovenous malformation Blood flow Cerebral Arteries Middle Aged medicine.disease Embolization Therapeutic Blood pressure Angiography Female sense organs Neurology (clinical) Radiology Cardiology and Cardiovascular Medicine business Blood Flow Velocity |
| Zdroj: | Neuroradiology. 46(8) |
| ISSN: | 0028-3940 |
| Popis: | Arteriovenous malformations (AVMs) are composed of abnormal arterial and venous vessels in the brain causing arteriovenous shunts of arterialized blood directly from pial arteries to draining veins. The hemodynamics of these lesions is not well-understood. Changes in blood flow and pressure are probably related to the natural history of AVMs and may also play a major role in AVM treatment. In this study intra-arterial pressure was measured in feeding arteries of AVMs using a microcatheter that had been placed for subsequent embolization treatment (201 measurements were performed in 95 patients before and after the embolization procedure). Results show a direct relationship between pressure changes and degree of embolization. Since pressure changes during the embolization procedure are relatively small, it seems unlikely that these changes are the direct cause of rupture and periprocedural bleedings. |
| Databáze: | OpenAIRE |
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