Page 114 - Zoo Animal Learning and Training
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               Figure 11.7  The completed craniectomy. (A) Elevation of bone flap using periosteal elevator. (B) The bone flap has been removed, exposing the underlying dura.

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               Figure 11.8  (A) Incising the dura and arachnoid. (B) The completed dural flap, exposing the cortical tissue.































                                                                  Figure 11.10  Ultrasonic aspirator hand‐piece employed by the surgeon to
                                                                  begin removal of the mass after visualizing it on the ultrasound screen.
               Figure 11.9  Operating room set‐up for ultrasonography. The ultrasound is
               shrouded in a sterile sleeve and placed softly on the cortical tissue using a
               saline interface. The surgeon is able to see the screen in real time to visualize
               the mass and surrounding vasculature.
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