Table 4. Correlation of hemispheric CTASI rHU with CTP parameters and final infarction volume.

Hemispheric CTASI rHU (N = 79)	Total Ischemic Volume [mL]	Ischemic Core Volume [mL]	Final Infarction Volume [mL]
Pearson Correlation Coefficient (95%-CI)	-0.661 (-0.770 –-0.515)	-0.317 (-0.503 –-0.103)	-0.289 (-0.503 –-0.042)
P-Value	<0.001	0.004	0.023

Pearson’s correlation coefficient was calculated for the indicated parameters. Abbreviations: CTASI, CT angiography source images; rHU, relative Hounsfield units; CTP, CT perfusion, CI, Confidence interval. P values <0.05 indicate statistical significance.