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Surg Neurol Int. 2013 Sep 25;4:122. doi: 10.4103/2152-7806.118936. eCollection 2013.

Intraoperative dynamic assessment of the posterior communicating artery and its branches by indocyanine green videoangiography.

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  • 1Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53792, USA.



True hemodynamic assessment of the posterior communicating artery (PComA) by preoperative angiography in terms of its perforators and configuration (adult vs. fetal vs. transitional) can be challenging in the surgical treatment of aneurysms involving the PComA, posterior cerebral artery, and basilar artery. Indocyanine green videoangiography (ICG-VA) is a widely accepted new technique in the surgical treatment of intracranial aneurysms to assess the patency of the parent artery, branches, and residual flow within the aneurysm after clipping.


Here we report two cases in which ICG-VA was utilized to assess either the direction of flow in the PComA or preservation of the PComA perforators with temporary clip application before dividing the PComA.


Our experience is that ICG-VA can be used to assess the main trunk, and perforating branches of the PComA providing real-time, dynamic intraoperative information of the surgical field. Therefore we suggest that ICG-VA may increase the safety of surgical treatment of aneurysm involving PComA.


Aneurysm; basilar artery; indocyanine green videoangiography; perforating arteries; posterior communicating artery

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