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

Table 1

CTPI parameters before and after treatment in the antitumor angiogenesis+chemotherapy group ().

Group		BF (mL/min·100 g^-1)	BV (mL·100 g^-1)	PBV (mL/L)	PS (mL/100 g·min^-1)	TTS (s)	TTP (s)
Before treatment	36
After treatment	36
		2.837	2.031	2.748	0.486	3.423	0.385
		<0.05	<0.05	<0.05	>0.05	<0.05	>0.05

Note: BF: blood flow; BV: blood volume; PBV: Pallak blood volume; TTS: time to start; PS: permeability-surface area product; TTP: time to peak.