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. Author manuscript; available in PMC: 2021 Jun 15.
Published in final edited form as: J Neurosci Methods. 2011 Dec 13;204(2):389–397. doi: 10.1016/j.jneumeth.2011.11.031

Figure 6. Blood Vessel Avoidance.

Figure 6.

(a) Output of the automatic blood detection algorithm in a T1-weighted scan. (b) Coronal view (AP +16) showing two ROIs selected for targeting (denoted as red blobs) and detected blood vessels (highlighted in cyan). Notice that the slice is aligned to stereotactic coordinates and that a major blood vessel in the Superior Temporal Sulcus is present directly above the ROI in the left hemisphere. (c,d) Projected blood patterns on the brain surface. 3D maps were generated by casting rays from the ROI (left, right) and highlighting in red rays that cross through blood vessels. (e) Safe chamber placement selected for targeting the left ROI. (f) View aligned to chamber coordinates. Notice that the electrode track (highlighted in magenta) hits the ROI but does not pass through any blood vessels.