Figure 2
From: A novel method for efficient delivery of stem cells to the ischemic brain
Two insertion routes of the ICA injection needle are shown. (A) Insertion of the ICA injection needle into the internal carotid artery (ICA) via the external carotid artery (ECA) stump. Pull the ECA to make it straight to the ICA. Insert the needle into the ECA and advance the needle into the ICA and the pterygopalatine artery (PPA). (B) Insertion of the ICA injection needle into the ICA via the common carotid artery (CCA). Pull the CCA to make it straight to the ICA. Insert the needle into the CCA and advance the needle into the ICA and the PPA.