Table 1 Summary of the results of the quantitative and qualitative analyses

Quantitative analysis (CNR)

S-FDCT

C-FDCT

MDCT

2.41 (1.66–3.21)

0.96 (0.46–1.70)

3.43 (2.83–4.17)

versus

C-FDCT

p < 0.001

versus

MDCT

p < 0.001

versus

MDCT

p < 0.001

Qualitative analysis (1-to-5 score)

S-FDCT

C-FDCT

MDCT

Basal ganglia

2.00 (2.00–3.00)

1.50 (1.00–2.00)

5.00 (4.00–5.00)

versus

C-FDCT

p = 0.045

versus

MDCT

p < 0.001

versus

MDCT

p < 0.001

Supratentorial cortex

2.00 (1.66–2.50)

1.00 (1.00–2.00)

5.00 (5.00–5.00)

versus

C-FDCT

p = 0.044

versus

MDCT

p < 0.001

versus

MDCT

p < 0.001