Objective: To compare the application of fluorescein videoangiography (FL-VA) and indocyanine green videoangiography (ICG-VA) in intracranial aneurysm surgery.
Methods: 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.
Results: 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.
Conclusions: 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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