Table 3.

Comparison of Clinical, sonographic and Doppler response

Modality		Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Clinical		45.8	92.3	84.6	64.9
USG		33.3	88.5	72.7	59.0
Cummulative color Doppler score	>5	91.7	38.5	57.9	83.3
	>7	66.7	61.5	61.5	66.7
	>9	66.7	76.9	72.7	71.4
RI score	>1	91.7	53.8	64.7	87.5
	>2	66.7	69.2	66.7	69.2
	>3	66.7	76.9	72.7	71.4
PI score	>1	83.3	38.5	55.6	71.4
	>2	66.7	61.5	61.5	66.7
	>3	66.7	76.9	72.7	71.4
Vmax score	>1	100	7.7	50.0	100
	>2	91.7	38.5	57.9	83.3
	>3	66.7	76.5	72.7	71.4