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Table 1: 
Patient demographic and clinical information
Subject Age (yr), Sex Primary Tumor (grade) RT Type, Dose, Timing (completed prior to imaging) Steroids at Imaging
A 31, M AA (III) 60-Gy 3D conformal (9 mo) Yes
25-Gy salvage IMRT (2 mo) 
B 58, M GBM (IV) 54-Gy 3D conformal (22 mo) Yes
12-Gy gamma knife (5 mo) 
C 36, M GBM (IV) 60-Gy IMRT (3 mo) None
D 56, M GBM (IV) 60-Gy IMRT (23 mo) Yes
30-Gy IMRT (10 mo) 
E 45, F GBM (IV) 60-Gy 3D conformal (26 mo) None
F^a Excluded due to motion 
G 50, M GBM (IV) 37.5-Gy whole brain RT (8 mo) Yes
30-Gy IMRT (5 mo) 
H^b 38, M Ana. GG (III) 59.4-Gy IMRT (28.5 mo) Yes
12-Gy gamma knife (15.5 mo) 
I 59, M GBM (IV) 59.4-Gy IMRT (13 mo) None
J^a Excluded due to motion 
K 62, M GBM (IV) 54-Gy 3D conformal (12 mo) None
L^b 38, M Ana. GG (III) 54-Gy IMRT (24 months) None
12-Gy gamma knife (11 mo) 
M 43, M GBM (IV) 60-Gy 3D conformal (8 mo) Yes
10-Gy gamma knife (7 mo) 

Note:—RT indicates radiation therapy; AA, anaplastic astrocytoma; GBM, glioblastoma multiforme; Ana. GG, anaplastic ganglioglioma; IMRT, intensity modulated radiation therapy.


^a Excluded from analysis due to motion during scanning.


^b A single patient who underwent 2 separate surgeries 4.5 months apart.

Subject	Age (yr), Sex	Primary Tumor (grade)	RT Type, Dose, Timing (completed prior to imaging)	Steroids at Imaging
A	31, M	AA (III)	60-Gy 3D conformal (9 mo)	Yes
			25-Gy salvage IMRT (2 mo)
B	58, M	GBM (IV)	54-Gy 3D conformal (22 mo)	Yes
			12-Gy gamma knife (5 mo)
C	36, M	GBM (IV)	60-Gy IMRT (3 mo)	None
D	56, M	GBM (IV)	60-Gy IMRT (23 mo)	Yes
			30-Gy IMRT (10 mo)
E	45, F	GBM (IV)	60-Gy 3D conformal (26 mo)	None
F^a			Excluded due to motion
G	50, M	GBM (IV)	37.5-Gy whole brain RT (8 mo)	Yes
			30-Gy IMRT (5 mo)
H^b	38, M	Ana. GG (III)	59.4-Gy IMRT (28.5 mo)	Yes
			12-Gy gamma knife (15.5 mo)
I	59, M	GBM (IV)	59.4-Gy IMRT (13 mo)	None
J^a			Excluded due to motion
K	62, M	GBM (IV)	54-Gy 3D conformal (12 mo)	None
L^b	38, M	Ana. GG (III)	54-Gy IMRT (24 months)	None
			12-Gy gamma knife (11 mo)
M	43, M	GBM (IV)	60-Gy 3D conformal (8 mo)	Yes
			10-Gy gamma knife (7 mo)