Comparative Effect of Multi-Dose Contrast Median on Contrast-Enhanced Computed Tomography Workflow of Nurses and Hospital Efficiency: A Multi-CenterReal-World Prospective Observational Study in China

Table 3

The daily per capita operating time of patients using different specifications of contrast agents.

Specification (ml)	Type of power injectors	Cases	Daily per capita operating time (s)	Market share of different PIs (%)	Daily per capita operating time	t	P
100	Syringeless	560	64.81	20	80.67	6.28	<0.001
	Dual-syringe	227	84.64	80
200	Syringeless	80	45.18	20	63.81
	Dual-syringe	302	68.47	80
500	Syringeless	—	43.56	20	50.22	—	—
	Dual-syringe	—	51.89	80		—	—

: adjusted by market share of PIs.