2024年4月14日 · Ultrasound. Gas in the portal veins usually manifests as echogenic mobile foci in the lumen of the portal vein. Doppler ultrasound will demonstrate sharp spikes on both sides of the basal line on the Doppler spectral display 7. CT

Portal venous gas can be detected by a bedside point of care ultrasound (POCUS) examination in adult patients in critical care units (CCU). Findings include echogenic bubbles flowing centrifugally throughout the portal venous system.

2014年6月1日 · To review the clinical data and sonographic implications of hepatic portal venous gas (HPVG), we collected 447 cases of HPVG from the MEDLINE database and the National Taiwan University Hospital, Taipei, Taiwan database and analyzed etiology, radiographic findings, diagnostic tools, and outcome of all the cases.

2024年5月12日 · Portal venous gas on abdominal ultrasound classically represents an indirect indicator of bowel ischemia, a critical condition which poses a high patient mortality and therefore warrants emergent corrective action.

Hepatic portal venous gas has characteristic image appearances in various ultrasound modes such as bright mode, Doppler mode, and even motion (M) mode. In this article, we give a comprehensive review of the image appearances of HPVG among different modes of US with a special focus on the M mode US.

2024年7月18日 · This article synthesizes findings from ultrasound methods for assessing portal venous gas reported in the literature and introduces a new approach using Color M-mode ultrasound. Hepatic portal venous gas (HPVG) indicates an abnormal gas buildup within the portal venous system, associated with severe medical conditions.

2021年6月10日 · Portal vein gas is a rare imaging finding and a concomitant sign of abdominal disease. Here, we report a 64-year-old man with an emphasis on contrast-enhanced ultrasound for describing the findings for portal vein gas and evaluating liver blood perfusion.

2007年8月1日 · The purpose of this study was to investigate and differentiate the characteristics of benign hepatic portal venous gas (HPVG) and noxious HPVG on sonographic images. This study included seven patients (age 65 to 89 y; mean 75 y) with sonograms and computed tomography (CT) images performed within 4-h interval.

Hepatic portal venous gas (HPVG) indicates an abnormal gas buildup within the portal venous system, associated with severe medical conditions. Causes include heightened intraluminal pressure, bowel wall disruption, bowel necrosis, and pathogenic bacteria.

To review the clinical data and sonographic implications of hepatic portal venous gas (HPVG), we collected 447 cases of HPVG from the MEDLINE database and the National Taiwan University