[Retracted] A Cohort Study to Evaluate the Efficacy and Value of CT Perfusion Imaging in Patients with Metastatic Osteosarcoma after Chemotherapy

Table 4

BV and BF reduction rates between patients with remission and those without remission after treatment ().

Group		BV (mL·100 g^-1)		Reduction rate (%)	BF (mL/min·100 g^-1)		Reduction rate (%)
		Before treatment	After treatment		Before treatment	After treatment
Remission	62
Not alleviated	18
		1.578	6.178	9.975	0.045	2.748	7.657
		>0.05	<0.01	<0.01	>0.05	<0.01	<0.01

Note: BF: blood flow; BV: blood volume.