Monitoring of Balloon Test Occlusion of the Internal Carotid Artery by Parametric Color Coding and Perfusion Imaging Wit
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O r i g i n a l A rt i c l e
Monitoring of Balloon Test Occlusion of the Internal Carotid Artery by Parametric Color Coding and Perfusion Imaging Within the Angio Suite: First Results T. Struffert · Y. Deuerling-Zheng · T. Engelhorn · S. Kloska · P. Gölitz · A. Bozzato · M. Kapsreiter · C. M. Strother · A. Doerfler
Received: 5 November 2012 / Accepted: 29 January 2013 © Springer-Verlag Berlin Heidelberg 2013
Abstract Background Temporary balloon test occlusion (BTO) might be performed prior to procedures in which occlusion of the internal carotid artery (ICA) might be necessary. We tested the hypothesis that parametric color coding (PCC) of angiographic series (digital subtraction angiography (DSA)) along with the assessment of cerebral blood volume (CBV) in the angiography suite would simplify and enhance the identification of candidates who are most likely to tolerate occlusion. Materials and Methods Fifteen patients underwent angiographic series (DSA) and perfusion imaging before and during BTO. Pre- and postocclusion DSA acquisitions were evaluated for venous delay by conventional methods (“eye balling”) and by PCC measurements. Comparison of CBV values between the left and right hemisphere in 6 defined regions was performed. Results Values of venous delay by eye balling and PCC showed a high correlation (r = 0.87, p
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