Table 2:

Initial conventional MR imaging and ASL findings after admission in patients with HSE

Case No.	Lesion Location^{^a}	T2WI	T1WI	CE	Perfusion^{^b}
1	L. T	Slight hyper/hypo	Slight hypo/hyper	NA	Obvious hyper
2	L. T, I	Slight hyper	Slight hypo/hyper	Gyriform enhancement	Obvious hyper
3	L. T, I	Slight hyper	Slight hypo/hyper	Patchy enhancement	Obvious hyper
4	R. F, T	Slight hyper	Slight hypo	None	Obvious hyper
5	L. F, I, and Bil. T	Slight hyper/hyper	Slight hypo/hyper	Gyriform enhancement	Obvious hyper
6	Bil. T, and R. P	Slight hyper/hyper	Slight hypo/hyper	None	Slight hypo
7	L. F, P, O, and Bil. I, T	Slight hyper	Iso	Patchy enhancement	Slight hyper/hyper
8	Bil. T, and L. I	Slight hyper	Slight hypo	None	Obvious hyper
9	Bil. F, T, I	Slight hyper	Slight hypo	None	Obvious hyper
10	Bil. F and cingulate gyrus	Slight hyper	Iso	None	Obvious hyper
11	R. F, and Bil. T, I	Slight hyper	Iso	None	Obvious hyper (multiple lesions)
12	Bil. F, T, I, and cingulate gyrus	Slight hyper	Slight hypo	Patchy enhancement	Obvious hyper
13	R. T, and Bil. I	Slight hyper	Slight hypo	Slight meningeal enhancement	Regional hyper
14	L. T, I	Slight hypo/hyper	Slight hypo/hyper	Gyriform enhancement	Regional hyper
15	L. T, I	Slight hyper/hyper	Slight hypo/hypo	Slight gyriform enhancement	Obvious hypo
16	R. T, I	Slight hyper/hyper	Slight hypo/hypo	Slight enhancement	Obvious hypo
17	R. T, I	Slight hyper	Slight hypo	None	Obvious hyper

Note:— R indicates right; L, left; Bil., bilateral; F, frontal lobe; T, temporal lobe; P, parietal lobe; O, occipital lobe; I, insular lobe; hyper, hyperintensity or hyperperfusion; hypo, hypointensity or hyperperfusion; Iso, isointensity; CE, contrast enhancement; NA, not applicable.
↵a Abnormal signals on T2 FLAIR.
↵b Perfusion performance on the first ASL examination.