Contrast-enhanced intraoperative ultrasonography equipped with late Kupffer-phase image obtained by sonazoid in patients with colorectal liver metastases

Table 1 Preoperatively diagnosed sites of liver metastases by CT, MRI and CE-US, intraoperatively found lesions by IOUS and CE-IOUS, and intraoperatively newly found metastases by CE-IOUS

Patient	Preoperatively diagnosed metastases			Intraoperatively found lesions
No.	By CT	By MRI	By CE-US	By IOUS	By CE-IOUS	By CE-IOUS
1	S5, S5-6	S5, S5-6, S7	S5, S5-6	S5, S5-6	S5, S5-6, S7	S4
2	S3, S7	S3, S7	S3	S3	S3, S7	S6
3	S6, S6	S6, S6	S6, S6	S6, S6	S6, S6	(-)
4	S6-7, S1	S6-7	S6-7, S1	S6-7, S1	S6-7, S1	(-)
5	S7	S7	(-)	S7	S7	(-)
6	S7	S7	S7	S7	S7	(-)
7	S7-6, S3	S7-6, S3	S7-6, S3	S7-6, S3	S7-6, S3	(-)
8	S3, S4, S8	S3, S4, S8	S3, S4, S8	S3, S4, S8	S3, S4, S8	(-)