Table 2.

Study physician CE and CE+EUS impressions and outcome (lesion requiring drainage) for all lesions in the EUS group

Physician Impression	CE Positive (n=196) 50.5%	CE Negative (n=106) 27.3%	CE Uncertain (n=85) 22.0%
ED drainage procedure	161 (82.1%)	19 (17.9%)	51 (60.0%)
Lesions requiring drainage*	163 (83.2%)	24 (22.6%)	52 (61.8%)
CE+EUS positive	n=170	n=11	n=49
Lesions requiring drainage*	149 (87.6%)	6 (54.6%)	38 (77.6%)
CE+US negative	n=14	n=81	n=27
Lesions requiring drainage*	5 (35.7%)	11 (13.6%)	11 (40.7%)
CE+US uncertain	n=12	n=14	n=9
Lesions requiring drainage*	9 (75.0%)	7 (50.0%)	3 (33.3%)

N = 387

^*Outcome of lesion requiring drainage defined as pus obtained during ED drainage procedure or on follow-up.

CE = clinical exam; CE+EUS = clinical exam with emergency bedside ultrasound