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Table 2 Absolute and relative CTP values among patients with and without DCI

From: Prognostic factors of delayed cerebral ischemia after subarachnoid hemorrhage including CT perfusion: a prospective cohort study

VariableDCINo-DCIp value
CBF33.2 (10.542.4 ± 16.00.105
CBV2.48 ± 0.62.37 ± 0.80.709
MTT5.0 ± 1.03.9 ± 1.00.005a
TTP17.6 ± 4.918.0 ± 5.10.801
CBF difference19.4 (17.8)9.0 (7.9)0.187
CBV difference− 0.3 (1.3)− 0.2 (0.5)0.826
MTT difference0.68 (0.8)0.4 (0.8)0.147
TTP difference− 0.7 (6.1)0.2 (1.2)0.255
CBF ratio0.8 (0.4)0.9 (0.1)0.067
CBV ratio0.8 (0.8)1.0 (0.2)0.178
MTT ratio1.2 (0.3)1.1 (0.3)0.245
TTP ratio1.0 (0.4)1.0 (0.1)0.067
  1. Data expressed in mean (standard deviation)
  2. CBF cerebral blood flow, CBV cerebral blood flow, DCI delayed cerebral ischemia, MTT mean transit time, TTP time to peak
  3. aStatistically significant