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TABLE 2: Results of the assessment of parameters 1–5
Parameter PD (n = 27) PSP (n = 25)
1) Upper midbrain profile sign 
 Convex 24 8
 Linear 3 11
 Concave 0 6
2) Global midbrain atrophy 
 Normal 21 8
 Mild 6 8
 Moderate 0 6
 Severe 0 3
3) Tegmental T2 hyperintensity 
 Yes 0 7
 No 27 18
4) Putaminal T2 hypointensity 
 Yes 4 6
 No 23 19
5) Putaminal proton-density hyperintensity 
 Yes 0 0
 No 27 25

Parameter	PD (n = 27)	PSP (n = 25)
1) Upper midbrain profile sign
Convex	24	8
Linear	3	11
Concave	0	6
2) Global midbrain atrophy
Normal	21	8
Mild	6	8
Moderate	0	6
Severe	0	3
3) Tegmental T2 hyperintensity
Yes	0	7
No	27	18
4) Putaminal T2 hypointensity
Yes	4	6
No	23	19
5) Putaminal proton-density hyperintensity
Yes	0	0
No	27	25