Does computed tomography permeability predict hemorrhagic transformation after ischemic stroke?

Table 2 The permeability surface area product based on the computed tomography perfusion at the time of hospital presentation

Patients (n = 42)	Permeability surface area product			Relative permeability
	Normal side	Affected side	P value
No hemorrhage (27; 64.3%)	2.32 + 1.38	2.34 + 1.65	0.49	1.04 ± 0.53
Hemorrhage (15; 35.7%)	1.84 + 1.06	3.21 + 1.88	0.002	1.83 ± 0.78
P value	0.18	0.26		0.003