Related Experiment Video
Updated: Jan 30, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Detection of Portal Venous Gas by Point-of-Care Ultrasound in Severe Abdominal Disease: A Case Series
Matthew Kongkatong1, Gitansh Bhargava2, Jakob Ottenhoff1
1Emergency Medicine, University of Virginia School of Medicine, Charlottesville, USA.
Abstract:
Portal venous gas (PVG) is an uncommon but critical finding for emergency physicians (EPs) to recognize on point-of-care ultrasound (POCUS). Gas bubbles appear as hyperechoic foci flowing in the proximal vasculature and may appear as linear structures in the distal veins. This series describes three patients presenting with complaints of abdominal pain in whom POCUS examination identified PVG. In all three cases, serious abdominal pathology (one case of acute mesenteric ischemia and two cases of necrotizing intestinal infection) was confirmed with additional workup. PVG is associated with serious abdominal pathology, and although it is not pathognomonic for mesenteric ischemia, this condition remains the most frequent underlying cause of PVG. Mortality among patients with PVG varies but can be very high. EPs should familiarize themselves with the appearance of PVG on POCUS and remain vigilant for this finding while evaluating their patients.
More Related Videos
07:12Author Spotlight: Using Point-of-Care Ultrasound for Comprehensive Evaluation of the Abdominal Aorta
Published on: September 8, 2023
06:15Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
Related Concept Videos
Ultrasound I: Abdominal Ultrasonography
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
Venous Thrombosis III: Interprofessional Care
Coronary Artery Disease V: Interprofessional Care
Chronic Kidney Disease III: Interprofessional Care
Peripheral Artery Disease III: Interprofessional Care
Peptic Ulcer Disease V: Surgical Management and Nursing Care
Surgical Interventions for Peptic Ulcer Disease