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. Author manuscript; available in PMC: 2015 Aug 25.
Published in final edited form as: Med Image Comput Comput Assist Interv. 2003 Nov;2878:375–382. doi: 10.1007/978-3-540-39899-8_47

Fig. 2.

Fig. 2

Boundary Condition template for (a) neutral head orientation and (b) patient’s head turned 60° in the OR. Surface 1 is stress-free at atmospheric pressure; surface 2 slides along the cranail wall but not along the normal direction and surface 3 is fixed at atmospheric pressure. The amount of intraoperative CSF drainage determines the drainage boundary condition.