Internal carotid artery volume flow correlates to rCBF measurements

Rothoerl, Ralf Dirk and Schebesch, Karl Michael and Woertgen, Chris and Brawanski, Alexander (2003) Internal carotid artery volume flow correlates to rCBF measurements. ACTA NEUROCHIRURGICA, 145 (11). pp. 943-947. ISSN 0001-6268

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Abstract

Background. There is no simple, cost effective bedside method available for measuring global cerebral blood flow (CBF) rapidly and repeatedly. Method. Based on the ultrasound technique a device was developed to measure flow volume per unit of time in the internal carotid artery. The system utilizes dual beam, angle-independent Doppler technology, and employs simultaneous sampling and full spectrum determination. The aim of this study was to evaluate this device in comparison with cerebral blood flow measurements using the well established Xenon(133) clearence technique. Findings. 10 patients suffering from SAH were included. 20 measurements were performed. CBF was measured employing the Xenon(133) clearence technique. Velocity profiles across the ICA were obtained with the high-resolution FlowGuard Doppler ultrasound flow system (Cardiosonix Ltd., Israel). According to the statistical analysis the ICA flow correlated significantly to the mean rCBF15 index of the hemisphere (p<0.0001). Conclusions. This new device seems to be promising for monitoring cerebral blood flow in critically ill neurological and neurosurgical patients.

Item Type: Article
Uncontrolled Keywords: CEREBRAL BLOOD-FLOW; CIRCULATION; AUTOREGULATION; AGREEMENT; volume flow; internal carotid artery; cerebral blood flow
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Neurochirurgie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 27 Aug 2021 09:40
Last Modified: 27 Aug 2021 09:40
URI: https://pred.uni-regensburg.de/id/eprint/38421

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