Detection of vascularity in wrist tenosynovitis: power doppler ultrasound compared with contrast-enhanced grey-scale ultrasound

Table 2 Results of vascularity detection with PDUS and CEUS by using two different scoring systems

	Extent of vascularization		Peri-/intratendinous vessel detection
	PDUS^a	CEUS^a	PDUS^b	CEUS^b
Grade 0	30.8% (8/26)	0.00% (0/26)	30.8% (8/26)	0.00% (0/26)
Grade 1	51.9% (14/26)^c (13/26)^d	40.4% (10/26)^c (11/26)^d	36.5% (10/26)^c (9/26)^d	26.9% (6/26)^c (8/26)^d
Grade 2	17.3% (4/26)^c (5/26)^d	59.6% (16/26)^c (15/26)^d	32.7% (8/26)^c (9/26)^d	73.1% (20/26)^c (18/26)^d

^aCEUS more sensitive (higher grades) than PDUS with P < 0.001. ^bCEUS more sensitive (higher grades) than PDUS with P = 0.001. ^cResults of observer 1. ^dResults of observer 2. CDUS, color Doppler ultrasound; PDUS, power Doppler ultrasound.

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