TABLE 1:

Patient characteristics and primary motor cortex volume of activation measurements

Patient No./Age (y)/Sex	Histologic Diagnosis	Prior Surgery	VoA (NT)	VaO (T)	Ratio (NT/T)
1/70/F	GBM	No	1345	3433	0.39
2/79/M	GBM	No	285	459	0.62
3/51/M	GBM	No	4271	4999	0.85
4/61/M	GBM	No	2246	2341	0.96
5/48/F	GBM	No	4762	4414	1.08
6/43/M	GBM	No	6819	5142	1.33
7/69/M	GBM	No	3449	2215	1.56
8/57/M	GBM	No	4825	3038	1.59
9/58/F	GBM	No	791	490	1.61
10/39/F	GBM	No	2658	1503	1.77
11/72/F	GBM	No	1202	380	3.17
12/48/M	GBM	No	5743	1234	4.65
13/65/M	Metastasis	No	411	4888	0.08
14/44/M	Metastasis	No	949	3971	0.24
15/56/F	Metastasis	No	4113	4888	0.84
16/61/F	Metastasis	No	1819	1582	1.15
17/62/F	Metastasis	No	2452	2041	1.20
18/56/F	Metastasis	No	4588	3575	1.28
19/57/F	Metastasis	No	3939	3056	1.29
20/57/M	Metastasis	No	1440	617	2.33
21/53/F	Metastasis	No	2120	870	2.44
22/57/F	Metastasis	No	2626	775	3.39
23/48/M	Metastasis	No	3212	759	4.23
24/52/M	Oligodendroglioma, G-III	No	633	1503	0.42
25/76/M	Astrocytoma, G-III	No	2167	696	3.11
26/43/M	Astrocytoma, G-II	No	1139	4825	0.24
27/36/F	Oligodendroglioma, G-II	No	4588	5585	0.82
28/47/F	Astrocytoma, G-II	No	5031	5031	1.00
29/36/F	Oligoastrocytoma, G-II	No	4351	3196	1.36
30/85/F	Meningioma	No	1756	2136	0.82

Avg values of patients without prior surgery (n = 30)			2858	2655	1.08
31/52/M	GBM	Yes	6913	1883	3.67
32/37/F	GBM	Yes	6154	1471	4.18
33/68/F	GBM	Yes	4050	664	6.10
34/53/M	Metastasis	Yes	807	601	1.34
35/58/F	Metastasis	Yes	5648	2136	2.64
36/46/F	Metastasis	Yes	4082	190	21.50
37/48/M	Astrocytoma, G-III	Yes	823	1867	0.44
38/23/F	Astrocytoma, G-III	Yes	2832	1060	2.67
39/45/F	Oligodendroglioma, G-III	Yes	2927	63	46.25
40/31/M	Astrocytoma, G-II	Yes	2974	823	3.62
41/19/F	Oligodendroglioma, G-II	Yes	2152	253	8.50
42/39/F	Atypical meningioma	Yes	1218	633	1.93
43/35/M	Low-grade hemangiopericytoma	Yes	4161	1946	2.14
Avg values of patients with prior surgery (n = 13)			3442	1045	3.29

Note.—VoA indicates volume of activation (mm³); NT, nontumor side; T, tumor side; GBM, glioblastoma multiforme.