Figure 5: Bar graph shows diagnostic accurate rate for CEUS group (black) and US group (light gray) in lung lesions with different size. There was statistically significant difference between CEUS group and US group in diagnostic accurate rate of lung lesions >5.0 cm (100% versus 76.2% , ). The diagnostic accurate rate of lung lesions 3.0~5.0 cm in CEUS group was higher than that in US group but had no significant difference (87.5% versus 77.8% , ). CEUS, contrast enhanced ultrasound; US, ultrasound.