Passive proton therapy vs. IMRT planning study with focal boost for prostate cancer

Radiation Oncology

Table 6 Planned dose in other normal tissues

		Rt FH			Lt FH			PB		Ext-PCTV
Patient	Plans	D _max ^a	D _mean ^a	ID ^b	D _max ^a	D _mean ^a	ID ^b	D _mean ^a	ID ^b	D _mean ^a	ID ^b
1	Proton	32.1	29.9	20.8	50.0	41.4	28.9	64.7	1.6	3.4	838.2
1	IMRT	41.1	31.2	21.7	35.4	25.2	17.6	56.6	1.4	5.9	1479.3
2	Proton	30.7	23.4	30.7	48.1	34.0	43.2	43.9	1.8	3.8	325.6
2	IMRT	39.6	15.1	19.8	43.0	12.9	16.3	27.0	1.1	5.8	497.4
3	Proton	32.9	20.4	37.0	50.2	29.3	50.8	34.0	0.9	5.8	992.8
3	IMRT	47.4	23.4	42.4	54.5	20.8	35.9	17.7	0.5	8.5	1445.7
4	Proton	32.9	24.3	49.1	49.0	33.6	69.8	11.2	0.9	4.5	952.6
4	IMRT	42.1	18.9	38.1	43.4	18.4	38.1	5.8	0.5	7.1	1511.3
5	Proton	31.6	20.9	27.4	47.9	27.9	35.4	40.3	1.6	8.9	757.3
5	IMRT	35.9	16.7	21.9	43.8	14.3	18.2	22.3	0.9	12.1	1033.3
6	Proton	32.5	24.3	44.6	49.2	35.5	63.9	6.6	0.4	4.5	745.6
6	IMRT	44.8	21.3	39.1	45.2	21.3	38.4	4.1	0.3	6.6	1092.7
7	Proton	32.9	24.1	45.1	49.6	33.2	59.2	27.8	2.1	3.7	786.8
7	IMRT	41.9	20.5	38.3	42.0	17.4	31.1	20.9	1.6	6.0	1298.5
8	Proton	39.7	20.5	32.6	51.7	31.7	50.3	0.6	0.0	3.7	744.5
8	IMRT	44.4	19.5	31.0	43.2	19.7	31.2	2.0	0.1	6.2	1268.8
9	Proton	29.7	19.7	33.3	49.6	29.3	50.9	1.3	0.0	3.6	735.4
9	IMRT	41.9	16.5	27.9	42.0	19.7	34.2	3.1	0.1	6.0	1222.3
10	Proton	32.9	22.9	32.7	49.2	31.1	42.9	55.6	3.5	5.9	837.0
10	IMRT	49.4	23.6	33.7	49.7	24.4	33.7	47.8	3.0	8.8	1249.1

In left femoral head, D _max exceeded 50 Gy in one patient (#3) for both proton and IMRT plans, and in another patient (#8) only for the proton plan. The RTOG dose constraint of the penile bulb (D _mean ≤ 52.5 Gy) was not met in one patient (#1) for both plans and in another patient (#10) for the proton plan only
^aIn Gy
^bIntegral dose in Gycm³

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