Intra-arterial haemodynamic changes during cerebral three-dimensional rotational angiography

Three-dimensional rotational angiography (3DRA) is useful for detecting, classifying and planning treatment for intracranial aneurysms. Prolonged contrast material (CM) injection, required for 3DRA, might cause blood pressure changes in the selectively catheterized artery. The purpose of this study...

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Bibliographic Details
Published in:European radiology 2009-02, Vol.19 (2), p.503-508
Main Authors: Waldenberger, Peter, Chemelli, Andreas, Mallouhi, Ammar
Format: Article
Language:English
Subjects:
Adult
Aged
Aneurysm
Aneurysms
Blood Pressure
Carotid arteries
Carotid Arteries - pathology
Catheters
Cerebral Angiography - methods
Diagnostic Radiology
Female
Hemodynamics
Hemodynamics - physiology
Humans
Imaging
Imaging, Three-Dimensional - methods
Internal Medicine
Interventional Radiology
Intracranial Aneurysm - diagnosis
Intracranial Aneurysm - pathology
Intracranial Aneurysm - therapy
Male
Medical imaging
Medicine
Medicine & Public Health
Middle Aged
Neuroradiology
Planning
Pressure
Radiology
Sensors
Subarachnoid Hemorrhage - diagnosis
Subarachnoid Hemorrhage - pathology
Subarachnoid Hemorrhage - therapy
Ultrasound
Vascular-Interventional
Veins & arteries
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Description
Summary:Three-dimensional rotational angiography (3DRA) is useful for detecting, classifying and planning treatment for intracranial aneurysms. Prolonged contrast material (CM) injection, required for 3DRA, might cause blood pressure changes in the selectively catheterized artery. The purpose of this study was to assess the extent and clinical relevance of haemodynamic changes in the selected artery during 3DRA. Twenty-five consecutive patients with intracranial aneurysms were prospectively examined with 3DRA (18 ml, 3 ml/s power injector) for planning treatment. Intra-arterial pressure was measured in the internal carotid or vertebral artery by using a pressure guidewire. Mean and systolic blood pressure acquired by the guidewire (Pd) and fractional flow reserve (FFR) were measured before, during and after CM injection. The extent of Pd and FFR changes was evaluated by Student’s t -test and linear regression analysis and their clinical relevance with the limits-of-agreement analysis. Mean systolic Pd and FFR increased significantly ( P 
ISSN:0938-7994
1432-1084
DOI:10.1007/s00330-008-1161-0