Published in:
01-12-2018 | Classics in Abdominal Radiology
Enhanced peritoneal stripe sign
Published in: Abdominal Radiology | Issue 12/2018
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The peritoneal stripe normally is seen as a thin echogenic line on sonography, at the interface between the anterior abdominal wall and the underlying peritoneal fluid or solid organs (Fig. 1). In patients with pneumoperitoneum, high amplitude linear echoes are produced by scattering of the ultrasound waves at the soft tissue–gas interface, creating the enhanced peritoneal stripe sign (EPSS) (Fig. 2) [1‐3]. Larger amount of intraperitoneal gas produce multiple reverberation artifacts, which appears as horizontal stripes, echogenic lines with comet tail artifacts, or ring-down artifacts (Video 1) [3].
Fig. 1
Sonogram performed with a 10 MHz linear transducer depicts the normal peritoneal stripe as a thin echogenic line at the interface between the anterior abdominal wall and the subjacent liver (white arrow)
Fig. 2
A Sonogram performed with a 4 MHz transducer shows the enhanced peritoneal stripe sign with subjacent reverberation artifacts (white arrow). B Sonogram performed with a 10 MHz linear transducer likewise illustrates the enhanced peritoneal stripe sign, with clearer depiction of the reverberation artifacts (white arrow). Curved arrow indicates a calculus in the gall bladder
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