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. 2020 Nov 23;7(2):51–61. doi: 10.14338/IJPT-XX-000XX.1

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Figure 6. — Treatment plans created on stopping-power-ratio (SPR) and single-energy computed tomography (SECT) images for lung-exhale (left), muscle (middle), and bone 800 (right) plugs to deliver a uniform dose to the planning treatment volume located at a depth of 3 cm beyond each plug in the water phantom. Bottom row shows the percentage of difference relative to the prescription dose (dose Rx) of the calculated (based on SPR and SECT) and measured dose ([D_measured − D_calculated]/D_Rx) for lung-exhale, muscle, and bone 800.