Table 2.

Radiation parameters

Patient number	Location	GTV	CTV margin (cm)	PTV margin (cm)	PTV volume (cm3)	Type	Number of fractions planned	Total dose planned (cGy)	Number of fractions delivered	Completed radiation
1		Enhancing	2 + FLAIR	0.3	667	IMRT	15	3750	15	Y
2		FLAIR + enhancing	0.5	0.3	487	IMRT	20	4000	20	Y
3		Enhancing	2.5 + FLAIR	0.3	398	IMRT	20	4000	20	Y
4		FLAIR + enhancing	1	0.3	398	IMRT	15	3750	15	Y
5		FLAIR + enhancing	1	0.3	397	IMRT	20	4000	13	N
6		Enhancing	1	0.3	195	IMRT	15	3750	15	Y
7		FLAIR + enhancing	0	0.5	225	IMRT	15	3750	15	Y
8		FLAIR + enhancing	0	0.5	145	IMRT	20	4000	20	Y
9		Enhancing mass	0.5	0	36	IMRT	15	3750	15	Y
10		Enhancing	0.5	0.3	190	IMRT	15	3750	15	Y
11		FLAIR + enhancing	1	0.3	442	VMAT	15	3750	15	Y
12		Enhancing	0	0.3	148	IMRT	10	3500	10	Y
13		Enhancing	0	0.3	181	VMAT	15	3750	15	Y
14		Enhancing	1	0.3	245	IMRT	22	4400	22	Y
15		FLAIR + enhancing	0	0.3	394	IMRT	15	3750	5	N
16		FLAIR + enhancing	0	0.3	216	IMRT	15	3750	15	Y
17		FLAIR + enhancing	1	0.7	443	VMAT	30	5400	5	N
18		FLAIR + enhancing	0	0.3	81.4	IMRT	15	3750	15	Y
19		FLAIR + enhancing	0	0.3	100	VMAT	15	3750	15	Y
20		FLAIR + enhancing	0	0.3	118	VMAT	15	3750	2	N
21*	Splenium	FLAIR + enhancing	0	0.3	34	VMAT	14	3500	9	N
21	Brachium pontis	FLAIR + enhancing	0	0.1	0.3	SRS	5	2000	2	N
22		Enhancing	0.5	0.3	112	VMAT	15	3750	15	Y

KEY: IMRT static field intensity modulated radiation therapy, VMAT volumetric modulated arc therapy, SRS stereotactic radiosurgery, FLAIR fluid attenuation inversion recovery

^*Patient 21 had two separate lesions radiated in two discontiguous fields on trial. All other patients had one contiguous radiation field