Rodolfo Maduri1, Jacques Guyotat2, Francesco Signorelli3,4. 1. Department of Clinical Neurosciences, Service of Neurosurgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland. 2. Department of Neurosurgery, Hôpital Neurologique et Neurochirurgical "P. Wertheimer", 59, boulevard Pinel, 69500, Bron-Lyon, France. 3. Department of Neurosurgery, Hôpital Neurologique et Neurochirurgical "P. Wertheimer", 59, boulevard Pinel, 69500, Bron-Lyon, France. signorelli2007@gmail.com. 4. Department of Experimental and Clinical Medicine, University "Magna Græcia", Catanzaro, Italy. signorelli2007@gmail.com.
Abstract
BACKGROUND: Indocyanine green video-angiography (IG-VA) is applied for intraoperative localisation and verification of surgical disconnection of intracranial dural arteriovenous fistulas (iDAVFs). METHOD: We describe the technique of semiquantitative flow analysis using Flow800 software that implements conventional IG-VA. Our method relies on simple comparison of the fluorescence curves of the exposed vessels, allowing precise localisation of the DAVF draining vein and verification of its surgical disconnection. CONCLUSIONS: Semi-quantitative flow analysis with Flow800 software during IG-VA is a reproducible technique that may overcome the limitations of conventional IG-VA in the surgical treatment of DAVFs.
BACKGROUND:Indocyanine green video-angiography (IG-VA) is applied for intraoperative localisation and verification of surgical disconnection of intracranial dural arteriovenous fistulas (iDAVFs). METHOD: We describe the technique of semiquantitative flow analysis using Flow800 software that implements conventional IG-VA. Our method relies on simple comparison of the fluorescence curves of the exposed vessels, allowing precise localisation of the DAVF draining vein and verification of its surgical disconnection. CONCLUSIONS: Semi-quantitative flow analysis with Flow800 software during IG-VA is a reproducible technique that may overcome the limitations of conventional IG-VA in the surgical treatment of DAVFs.