The Role of Contrast-Enhanced Ultrasound in Selection Indication and Improveing Diagnosis for Transthoracic Biopsy in Peripheral Pulmonary and Mediastinal Lesions

Table 4

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

Group	Size (cm)	Diagnosis accuracy				Accompany
		Total	<3 cm	3~5 cm	>5 cm	Atelectasis	Necrosis
CEUS	6.5 ± 2.8	96.3%; (79/82)	100%; (10/10)	87.5%; (21/24)	100%; (48/48)	13.4%; (11/82)	43.9%; (36/82)
US	6.7 ± 3.4	80%; (48/60)	100%; (9/9)	77.8%; (7/9)	76.2%; (32/42)	1.7%; (1/60)	6.7%; (4/60)
value	0.576	0.002	1.000	0.488	<0.001	0.013	<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.