Three-dimensional arterial spin labeling and diffusion kurtosis imaging in evaluating perfusion and infarct area size in acute cerebral ischemia

Table 4 Comparison of parameters of different delay time after labeling 2.5s perfusion parameters of average kurtosis/average diffusion coefficient-matched and unmatched infarct lesions (mean ± SD, mL/100 g/min)

Lesion area	MK/MD unmatched (n = 48)	MK/MD matched (n = 36)	t value	P value
Central area	11.50 ± 3.89	12.28 ± 4.03	-0.896	0.373
Peripheral area	25.84 ± 6.03a,d	26.71 ± 5.94a,d	-0.659	0.512
Unmatched area	21.76 ± 5.20a,d	-
Control area	37.85 ± 7.54	38.90 ± 7.41d	-0.636	0.526
F value	41.025	43.008
P value	0.000	0.000

^aP < 0.05 vs the control area.

^dP < 0.05 vs the central area.

MK: Average kurtosis; MD: Average diffusion coefficient.