Figure 4.

A: One way sensitivity of conventional radiotherapy using $100,000/QALY. 4B: One way sensitivity of SBRT using $100,000/QALY. Table 1The tornado diagrams demonstrate the impact each variable’s range has on the overall outcome of side-effect reduction threshold for cost-effectiveness. Variables at the top have the largest impact on the results while variables at the bottom have the smallest impact. * Range is reported in Table 1. CT-IGRT, CT-guided radiotherapy; GI, gastrointestinal; GU, genitourinary; MR-IGRT, MRI-guided radiotherapy; QALY, quality adjusted life year