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. 2014 Feb 28;2:9. doi: 10.1186/2050-5736-2-9

Figure 9.

Figure 9

Facet joint demo model for human treatment. Axial T2-weighted planning image on the left and sagittal T2-weighted planning image on the right. The blue dashed line demonstrates a narrower beam pass when using apodization technique. This allows better optimization of the transducer orientation since it minimizes the beam pass zone intersection with the vertebral spinous process.