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. 2011 Nov 16;6:158. doi: 10.1186/1748-717X-6-158

Table 3.

Mean and standard deviation of isocenter displacement between CT verification and post-treatment CT

Direction (mm) Mean SD Range
Cranio-caudal 0.08 0.2 -0.3 - 0.2
Medio-lateral 0.04 0.14 -0.3 - 0.2
Anterior-posterior 0.06 0.15 -0.5 - 0.4
3D-displacement 0.09 0.28 0-0.6

SD, standard deviation