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. 2016 Dec 19;1(4):147–153. doi: 10.1136/svn-2016-000024

Table 2.

The CTP parameters of patients with carotid artery stenosis regarding as high risk of hyperperfusion pre-pro procedure (n=41)

Preoperation After stage 1 After stage 2 P1 P2
CBF 0.85±0.05 0.98±0.06 1.01±0.07 <0.001 <0.001
CBV 0.98±0.02 0.993±0.022 0.990±0.021 0.70 0.85
MTT 1.15±0.05 1.05±0.05 1.01±0.05 <0.001 <0.001
TTP 1.20±0.06 1.04±0.06 0.99±0.06 <0.001 <0.001

Values are in mean (SD). Numbers in parentheses are the median and range.

CBF, cerebral blood flow; CBV, cerebral blood volume; CTP, CT perfusion; MTT, mean transit time; P1, preoperation compared with stage 1; P2, stage 1 compared with stage 2; TTP, time to peak.