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Fig. 6 | BMC Musculoskeletal Disorders

Fig. 6

From: Computer-navigated, stereotactic navigation for percutaneous radiofrequency ablation of osteoid osteomas: dose comparison and procedure times

Fig. 6

Total administered radiation dosage is higher when using stereotactic navigation than without navigation. The plausible distributions of mean values consistent with the data are shown for the average total radiation dosage A 428 mGy*cm with stereotactic navigation and B 230 mGy*cm without navigation assistance. There is also greater variability in administered radiation dosage with a wider distribution of the standard deviation with stereotactic navigation seen in C versus without navigation as seen in D. E shows the pairwise differences of these sampled means with statistically significantly more radiation delivered when using stereotactic navigation. The 95% HDI excludes zero and only 4.4% of the HDI lies within the ROPE. F The strong effect size also excludes zero with only 1.7% of the 95% HDI within the ROPE, indicating the significant difference between the groups. G summarizes the average values of the mean, standard deviation, difference of means, and effect size for the radiation dosage of the entire procedure as well as per ablation. The data per ablation differ slightly because three patients had two tumors which were ablated within the same procedure

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