Table 1.

Prostate class solution for each treatment phase.

	First phase	Second phase	Third phase
Number and energy of fields	10 18 MV fields	7 18 MV fields
Gantry angles	0° 30° 55° 95° 145° 180° 215° 265° 305° 330°	0° 52° 95° 155° 205° 265° 308°
Total segments	SIMRT: 32 + 5 on average to tailor the plan to the particular patient. SIBIMRT: 32 + 5 previous segments + 6 to boost prostate.	SIMRT: 19 + 3 on average to tailor the plan to the particular patient. SIBIMRT: 19 + 3 previous segments + 3 to boost prostate.	SIMRT: 19 + 3 on average to tailor the plan to the particular patient.
Types of segments	Irradiate the whole planning target volume and improve homogeneity. Block the intersection between PTV and organs at risk to achieve dose constraints. Increase fluency near the OAR to compensate for fluency lost due to previous segments. Compensate for the shape of the contour of the patient and for the heterogeneities. ONLY FOR SIBIMRT: Segments to boost prostate.
Segments weights	Based on the work of Arrans et al. [15]