Extravasated contrast volumetric assessment on computed tomography angiography in gastrointestinal bleeding: A useful predictor of positive angiographic findings

Table 3 Arterial and venous volumes, bleeding rate, and time interval between computed tomography angiography and catheter angiography of general population

Parameter	General population
Time interval between CTA and DSA, median (interquartile range) (h)	4 (2-9)
Bleeding arterial volume, median (interquartile range) (mL)	0.46 (0.21-0.76)
Bleeding venous volume, median (interquartile range) (mL)	1.83 (0.66-2.83)
Bleed rate, median (interquartile range) (mL/min)	2.04 (0.05-3.09)

CTA: Computed tomography angiography; DSA: Digital subtraction angiography.