US Diagnosis of Intraperitoneal Air

Very cool, from this study. Id be curious if this reverb artifact exists without significant free fluid?

This demonstrated free intraperitoneal fluid in Morison’s pouch (Video Clip S1). Upon attempting views of the pelvis, distinct hyperechoic foci with reverberation artifacts were visualized within the free fluid, suggesting associated free intraperitoneal air (Video Clip S2).