Accuracy of ED Bedside Ultrasound for Identification of gallstones: retrospective analysis of 575 studies
نویسندگان
چکیده
STUDY OBJECTIVE To determine the ability of emergency department (ED) physicians to diagnose cholelithiasis with bedside ultrasound. METHODS ED gallbladder ultrasounds recorded over 37 months were compared to radiology ultrasound interpretation. RESULTS Of 1,690 ED gallbladder ultrasound scans performed during this period, radiology ultrasound was performed in 575/1690 (34%) cases. ED physician bedside interpretation was 88% sensitive [95% CI, 84-91] and 87% specific [95% CI, 82-91], while positive predictive value (PPV) was 91% [88-94%] and negative predictive value (NPV) was 83% [78-87%], using radiology interpretation as the criterion reference. CONCLUSION ED physician ultrasound of the gallbladder for cholelithiasis is both sensitive and specific.
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