. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: Oper Neurosurg (Hagerstown). 2015 Aug 1;12(1):49–60. doi: 10.1227/NEU.0000000000000986

Table 2.

MRI Pre- and Post-Operative Timeline

	Cs-131 Patients		SRS Patients		p-value^*
	Median timing of scan relative to surgery ± SD (range)	N (cases)	Median timing of scan relative to surgery ± SD (range)	N (cases)
MRI-pre	0 days before ± 0.9 (0-3)	30	0 days before ± 1.9 (0-10)	30	.424
MRI-1	2 days after ± 0.9 (1-5)	30	1 days after ± 1.0 (0-5)	28	.094
MRI-2	36 days after ± 9.7 (17-57)	21	36 days after ± 10.3 (19-59)	23	.466
MRI-3	105 days after ± 18.5 (74-136)	17	109 days after ± 17.0 (83-140)	20	.383

This p-value is the result of a Mann-Whitney test.

Cs-131= Cesium 131; SRS= Stereotactic radiosurgery