Detection of pneumoperitoneum by ultrasound examination: an experimental and clinical study

Sonographic Detection of Small Amounts of Free Peritoneal Gas in Beagle Dogs

“…The minimal volume of free air that could be consistently detected via sonography was 5 ml [4]. Additionally, according to several investigations, as little as 1 ml of free intraperitoneal air can be consistently detected via ultrasonography [8,17]. Our study results demonstrated that with correct ultrasonographic technique, as little as 0.4 ml of free air can be detected consistently.…”

Ultrasonography for the Diagnosis of Intraperitoneal Free Air in Chest-Abdominal-Pelvic Blunt Trauma and Critical Acute Abdominal Pain

“…8,9 It has, however, been thought difficult to examine tissues and organs in or behind air. Although some researchers have occasionally found that US could detect pneumoperitoneum under restricted or experimental conditions, [10][11][12][13][14][15] it has not been common to use US to detect intraperitoneal free air (IPFA) in emergency departments. [16][17][18][19] In this study, we show the usefulness of US as a diagnostic instrument for IPFA and as a means of differentiating real IPFA from IPFA-like findings or false IPFA.…”

Sonographie des akuten Abdomens

“…Man findet dabei besonders oberhalb der ventrolateralen Leberoberfläche oder rechts paramedian bei leicht angehobenem Oberkörper [18] echoreiche Reflexechos, die lageabhängig wandern und bei Kompression verschwinden (⊡ Abb. 2b).…”

“…2b). Die Sensitivität schwankt zentrenabhän-gig zwischen 76% und 90% [10,12,18,28,51], wobei sie in 2 Studien unterhalb der Sensitivität der Abdomenröntgenunter-suchung lag [10,28] …”