Abstract
To compare the application of fluorescein videoangiography (FL-VA) and indocyanine green videoangiography (ICG-VA) in intracranial aneurysm surgery. A total of 65 patients who underwent aneurysm clipping in our hospital from January 2019 to January 2020 were included in the study. FL-VA and ICG-VA were used during the surgery to determine whether the aneurysm is completely clipped and the artery bearing the aneurysm and the perforating artery around the aneurysm are unobstructed. All 65 patients underwent both FL-VA and ICG-VA intraoperatively after aneurysm clipping. FL-VA was applied first. In 30 cases, FL-VA and ICG-VA provided the same results. In 10 cases, FL-VA performed obviously better over ICG-VA in visualizing small perforating arteries (2 cases of internal carotid artery-posterior communicating artery aneurysms and 3 cases of anterior communicating artery aneurysm) and evaluating whether the aneurysm was completely clipped (3 cases of middle cerebral artery aneurysm, 1 case of internal carotid artery-posterior communicating artery aneurysms and 1 case of distal anterior cerebral artery aneurysm). In the remaining 25 cases, ICG-VA was repeatedly applied in a short period of time due to quick clearance of indocyanine green from the blood vessels, but this couldn't be done with FL-VA. Compared with ICG-VA, FL-VA can provide better visualization of perforating artery, and can determine whether the aneurysm was completely clipped more accurately. However FL-VA couldn't be repeatedly applied during a short period of time.
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