Intuitiveness, quality and utility of intraoperative fluorescence videoangiography: Australian Neurosurgical Experience

Abstract

ICGFV is safe, intuitive and provides neurosurgeons with high quality, valuable, real-time imaging of cerebrovascular anatomy. It can assist in intraoperative surgical management and/or stroke prevention particularly during aneurysm clipping, EC-IC bypass and AVM/DAVF surgery.

Indocyanine Green Videoangiography of Optic Cavernous Angioma -Case Report-

“…ICG-VAG of three cases of intraparenchymal cavernous angiomas found no fluorescence in any of the cavernous malformations or associated venous anomalies. 5) These findings may be useful in the intraoperative differential diagnosis, but experience of more such cases is required. ICG-VAG is currently being evaluated for future application in the differential diagnosis based on im-Neurol Med Chir (Tokyo) 51, April, 2011 Y. Murai et al…”

“…Therefore, a lesion in the brain parenchyma can only be observed if the perilesional tissue is first removed. 5,8) However, procedures such as coagulation, compression, or ablation around the lesion may affect the lesion and/or the imaging findings, so affecting any objective evaluation of the lesion. 5,8,11,18) Since cavernous angiomas are usually located in the brain parenchyma, [15][16][17]19) ICG-VAG images of cavernous angioma that are unaffected by surgical procedures are comparatively rare.…”

“…8,11,13,18) ICG-VAG is useful in cases of aneurysm, vascular reconstruction, and cerebral infarction, [1][2][3][4] and also in some patients with tumorous lesions. 1,5,8,9,11,13,18) In comparison with cerebral angiography, which is a radiographic procedure, ICG-VAG is a fluorescence imaging method and cannot 8,11,13,18) depict the lesion site if the irradiated light is blocked by the brain parenchyma or skin. Therefore, a lesion in the brain parenchyma can only be observed if the perilesional tissue is first removed.…”

“…5,8,11,18) Since cavernous angiomas are usually located in the brain parenchyma, [15][16][17]19) ICG-VAG images of cavernous angioma that are unaffected by surgical procedures are comparatively rare. 5) We recently obtained ICG-VAG findings of an optic chiasmal cavernous angioma without removal of the perilesional tissues because of the location on the surface of the optic nerve.…”

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

“…Microdoppler of the aneurysm after clipping to show any intra-aneurysmal flow can be a step before opening the aneurysm since flow in the aneurysm would prove that the aneurysm is not completely obliterared. The benefit of ICG-VA was given as 26% in one study with a misleading rate of 2% [19]. The simplicity of the method is also of great advantage [20].…”