5.

Detection rate for internal necrosis and pericardial effusion before CEUS and after CEUS between thymic carcinoma and thymoma

Groups	Internal necrosis [% (n)]			Pericardial effusion [% (n)]
	Thymic carcinoma (N=16)	Thymoma (N=14)		Thymic carcinoma (N=16)	Thymoma (N=14)
*, Compared with conventional ultrasound, CEUS increased the detection rate for internal necrosis (62.5% vs. 18.8%, P=0.029) and pericardial effusion (56.3% vs. 12.5%, P=0.023) in thymic carcinoma.
Before CEUS	18.8 (3)	7.1 (1)		12.5 (2)	7.1 (1)
After CEUS	62.5 (10)	7.1 (1)		56.3 (9)	14.3 (2)
P	0.029*	1.000		0.023*	1.000