| 摘要 |
To evaluate the accuracy of ultrasound (US) performed by trauma surgeons in the evaluation of blunt abdominal trauma (BAT), a prospective study was performed over one year. All patients suspected to have BAT were evaluated initially with ultrasound at emergency room. The accuracy of US was evaluated according to the results of CI' scan findings, operative findings and clinical follow-up. During a study period of one year, 170 patients were enrolled in our study. In the prediction of intraperitoneal injury by US, sensitivity was 95.6% (43/45), specificity was 97.6% (122/125), positive predictive value was 93.4% (43/46), negative predictive value was 98.3% (122) 124), and total accuracy was 97.0% (165/170). For the retroperitoneal injury, the sensitivity was 76.9% (20/26), specificity was 100% (144/144), positive pre- dictive value was 100% (20/20), negative predictive value was 96% (144/150), total accuracy was 96.5% (164/170). The significant false negative findings by US were two intraperitoneal bowel injuries and one retroperitoneal duodenal injury, which were diagnosed by subsequent CT scan. Using US as a screening modality by surgeons, the accuracy is high for the initial evaluation of intraperitoneal lesion. However, missing diagnosis of bowel injury was possible and the sensitivity for detecting retroperitoneal injury was relatively low, which can be complemented by high clinical suspicion and subsequent CT scan. |
