Table 3. Comparison between the early vascular phase of contrast-enhanced ultrasound and the arterial phase of dynamic CT in the evaluation of vascularity in local recurrence tumours.

		Early vascular phase of CEUS
		Hyper		Iso		Total
Arterial phase of dynamic CT	High density	22	(96%)	1	(4%)	23
	Isodensity	2	(100%)	0		2
	Low density	0		1	(100%)	1
	Total	24	(92%)	2	(8%)	26

Hyper, hyperenhancement; iso, iso-enhancement; CEUS, contrast-enhanced ultrasound.