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. 2011 Oct 25;3(4):3972–3990. doi: 10.3390/cancers3043972

Figure 4.

Figure 4.

An inspection of a central axis slice through the eye level shows that the cribriform plate is not covered as well as the rest of the craniospinal PTV. For this reason we usually build some extra PTV to better control these critical areas (cribriform plate PTV).