Table 4: Accuracy of biopsy diagnosis, pulmonary atelectasis, and necrosis detection rate in CEUS group and US group, % ().

GroupSize (cm)Diagnosis accuracyAccompany
Total<3 cm3~5 cm>5 cmAtelectasisNecrosis

CEUS 6.5 ± 2.896.3%
(79/82)
100%
(10/10)
87.5%
(21/24)
100%
(48/48)
13.4%
(11/82)
43.9%
(36/82)
US 6.7 ± 3.480%
(48/60)
100%
(9/9)
77.8%
(7/9)
76.2%
(32/42)
1.7%
(1/60)
6.7%
(4/60)

value0.5760.0021.0000.488<0.0010.013<0.001

There was a statistically significant differences in the diagnosis accurate rate between the CEUS and US groups ( = 0.002) and statistically significant differences in the atelectasis and necrosis detection rate between the two groups ( = 0.013, < 0.001). CEUS, contrast enhanced ultrasound; US, ultrasound.