Table 3:

Change of PCT parameters between immediately before and the day after the IAN intervention^*

	Preintervention	1 Day Postintervention	P†
MTT	3.27 (2.99–3.84)	2.72 (2.24–3.38)	.17
Tmax	1.66 (1.43–2.29)	1.55 (1.12–1.94)	.03
CBF	13.67 (10.86–15.45)	13.90 (9.52–25.96)	.15
CBV	4.0 (3.51–5.87)	3.74 (2.97–5.59)	.52

Note:—CBF indicates cerebral blood flow; CBV, cerebral blood volume; MTT, mean transit time; Tmax, selective time to peak of brain parenchyma.

^*Data are presented as medians (interquartile range).

^†With the signed rank test for paired samples.