In this study, three plans were compared to minimize exposure to critical organs such as the eyes, lenses, optic nerves, optic chiasm, brain stem, and pituitary adjacent to the nasal cavity, while ensuring sufficient PTV (Planning Target Volume) dose coverage. The non-coplanar C-arm type Novalis requires direct couch rotation in-room, resulting in treatment and image-guided radiation therapy (IGRT) times of over twice that of Halcyon. On the other hand, the O-ring type Halcyon significantly reduces treatment time with fast internal gantry rotation and rapid CBCT IGRT. Additionally, its dual-layer MLC maximizes normal tissue protection. Among the three treatment plans compared, Halcyon IMRT proved to be the most effective. However, limitations exist in respiratory-gated radiation therapy, as this modality is not feasible with Halcyon equipment, and the high equipment cost may pose challenges for clinical implementation.