TABLE 2:

Frequency of focal lesions

	Total Lesions	Range	Median + SD
T1	326	0–31	2.5 + 6.8*
T2 hypo	168.5	0–12	1.0 + 3.6*
T2 hyper	65	0–10	0 + 2.25*
T2*	608	0–61	3.75 + 13.9

Note.—T1 indicates T1-weighted MR imaging; T2 hypo, T2-weighted MR imaging hypointensities; T2 hyper, T2-weighted MR imaging hyperintensities; T2*, T2*-weighted MR imaging.