▲ 超声探查腹腔游离气体敏感,极少量气体也可清晰显示。文献称高频线阵探头的使用检出更敏感,若患者病情允许间隔复查可提高检出率。参考文献1.Bacci M, Kushwaha R, Cabrera G, Kalivoda EJ.Point-of-Care Ultrasound Diagnosis of Pneumoperitoneum in the EmergencyDepartment. Cureus. 2020 Jun 8;12(6):e8503.2. Taylor MA, Merritt CH,Riddle PJ Jr, DeGennaro CJ, Barron KR. Diagnosis at gut point: rapididentification of pneumoperitoneum via point-of-care ultrasound. Ultrasound J.2020 Dec 7;12(1):52.