Figure 5. Comparison of the OAR mean dose between the conventional VMAT TBI and SIMBa techniques.

For each of the evaluated sites, the statistical differences were evaluated using a paired sample t-test with a significance level of 0.05. Each site was found to be significantly different with a maximum p-value of <0.008.

VMAT: volumetric modulated arc therapy; SIMBa: simultaneous integrated marrow and body approach; TBI: total body irradiation; OAR: organ at risk