Percutaneous imaging-guided interventions for acute biliary disorders in high surgical risk patients

Table 5 Comparison between ultrasonography- and computed tomography-guided procedures in patients with acute biliary infection n (%)

Procedure	US-guided procedures		CT-guided procedures
	No. of procedures	Successful procedures	No. of procedures	Successful procedures
Pericholecystic abscess drainage	5	2 (40)	7	6 (85.7)
Percutaneous cholecystostomy	5	3 (60)	5	5 (100)
Drainage for cholangitis	3	1 (33.3)	6	5 (83.3)
Total	13	6 (46.15)	18	16 (88.8)1

¹The success rates in patients drained by computed tomography (CT)-guidance were significant compared with those drained under ultrasound guidance (P = 0.0293). US: Ultrasonography.