Table 3.

Scores of VSS and multimodal ultrasound parameters.

	0	1	2	3	4		5
Vancouver Scar Scale
Pigmentation	normal	hypopigmentation	mixed pigmentation	hyperpigmentation
Vascularity	normal	pink	red	purple
Pliability	normal	supple	yielding	firm		ropes	contracture
Height	normal	<2 mm	2–5 mm	>5 mm
Multimodal ultrasound parameters
Echogenicity		isoechoic	hypoechoic	markedly hypoechoic
Blood flow grading		no presence of vessels	low presence of vessels	high presence of vessels
K Cs max		<7.070	≥7.070
SO2 within the keloid		>81.04 %	≤81.04 %

Cs: surface wave speed, K: keloid, SO₂: oxygen saturation.