Fig. 1From: Pneumoperitoneum diagnosed as an incidental finding using focus assessed transthoracic echocardiography: a case reportDrawing of the sonographic signs of pneumoperitoneum. The peritoneal stripe is seen as a hyperechoic line just below the superficial layer of skin and abdominal musculature. Corresponding horizontal reverberation artefacts are seen below the peritoneal stripe. The distance (d) from the ultrasound probe to the peritoneal stripe, equals the distance between the reverberation artefactsBack to article page