Assessment of blood flow in perforating arteries during intracranial aneurysm surgery with intraoperative videoangiography using indocyanine green

Procedural Paradigm in Intraoperative Aneurysm Clipping with Microdoppler Ultrasound, Near-Infrared Indocyanine Green Videoangiography and Intraoperative Angiography

“…Limitations of this method are that the anatomy outside the microscope´s view is not possible to be seen compared to intraoperative angiography which shows the vascularisation of a whole hemisphere [11]. Vessels covered by the aneurysm or by brain tissue cannot be observed by ICG-VA [6,16,17]. Atheromatous vessel walls or thrombosed aneurysms obliterate ICG-VA view too [16].…”

Intraoperative Flow Measurement by Microflow Probe During Surgery for Brain Arteriovenous Malformations

“…This is a well-known issue already reported in aneurysm surgery where ICG-VA proved more useful. 18 Second, assessment must be done in fragile venous drainages that can be potentially injured during the maneuver. However, gentle temporary pressure on the bleeding vessel, sometimes associated with low-power coagulation, achieved hemostasis without vessel sacrifice in all patients in our cohort.…”

Indocyanine Green Angiography in Endoscopic Third Ventriculostomy

“…ICG was approved by the US Food and Drug Administration in 1956 for the evaluation of cardiocirculatory and liver function, and later on, in 1975 for ophthalmic angiography. 37 To date, ICG angiography has become an established tool in several surgical fields including vascular neurosurgery. [15][16][17][18][19][20][21][22][23][24][25][26][27][28]37 To the best of our knowledge, this is the first report that describes the administration of ICG in ETV to visualize the basilar artery and its perforators before fenestration of the third ventricular floor.…”