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. 2024 Jun 20;16(6):e62784. doi: 10.7759/cureus.62784

Figure 3. The differences in margin addition functions between two planning systems in a 20-mm sphere model.

Figure 3

The images show the target contours superimposed onto non-contrast-enhanced computed tomography (CT) images (A-F); axial images (A-C); coronal images (D-F); by MIM Maestro (A, D); by Monaco (B, E); and the superimposed images (C, F).

Isotropic 2-mm margins were added to the 20-mm sphere model by MIM Maestro and Monaco, respectively. The 2-mm margin unevenness is more noticeable in Monaco than in MIM Maestro. Additionally, the 2-mm margin-added volume by Monaco is slightly larger than that by MIM Maestro.

GTV: gross tumor volume; GTV + 2 mm: GTV evenly expanded by 2 mm; MIM: MIM Maestro.