Ultrasound Anatomy

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Gas Ultrasound Anatomy

4 min read

Gas ultrasound image

Gas ultrasound anatomy is presented here as a labeled cross-sectional atlas. Every view pairs a color-coded anatomy diagram with the matching real ultrasound image, so you can learn the expected shape and position of the gas and then recognise it on a real scan.

In the atlas legend the gas belongs to the general structures group and is shown in a consistent colour wherever it appears. The small body marker on each card shows where the transducer sits for that view, which makes it easier to reproduce the image at the bedside.

Gas appears in 12 labeled views in this atlas. Each card below shows the anatomy diagram, the real ultrasound image and the probe position for that scan. Coloured dots list every structure labeled in the view, with gas highlighted.

12Scan views

Gas across the atlas

Probe position, Left lobe of liver, ligamentum teres, boundary between lateral and medial segments

Left lobe of liver, ligamentum teres, boundary between lateral and medial segments

Liver / Liver in Longitudinal Sections · Longitudinal plane

Gas anatomy diagram, Left lobe of liver, ligamentum teres, boundary between lateral and medial segments

Gas ultrasound image, Left lobe of liver, ligamentum teres, boundary between lateral and medial segments

18Splenic vein21Left lobe of liver42Body of pancreas45Pancreatic duct73Antrum of stomach74Cardia93Gas94Artifact98Heart

Probe position, Left lobe of liver, ligamentum teres, boundary between lateral and medial segments, caudate lobe

Left lobe of liver, ligamentum teres, boundary between lateral and medial segments, caudate lobe

Liver / Liver in Longitudinal Sections · Longitudinal plane

Gas anatomy diagram, Left lobe of liver, ligamentum teres, boundary between lateral and medial segments, caudate lobe

Gas ultrasound image, Left lobe of liver, ligamentum teres, boundary between lateral and medial segments, caudate lobe

10Vena cava11Left hepatic vein17Portal vein21Left lobe of liver23Caudate lobe24Ligamentum teres25Ligamentum venosum70Stomach92Acoustic shadow93Gas96Diaphragm

Probe position, Left hepatic vein, ligamentum teres, boundary between lateral and medial segments, caudate lobe

Left hepatic vein, ligamentum teres, boundary between lateral and medial segments, caudate lobe

Liver / Liver in Longitudinal Sections · Longitudinal plane

Gas anatomy diagram, Left hepatic vein, ligamentum teres, boundary between lateral and medial segments, caudate lobe

Gas ultrasound image, Left hepatic vein, ligamentum teres, boundary between lateral and medial segments, caudate lobe

10Vena cava17Portal vein20Right lobe of liver22Quadrate lobe93Gas96Diaphragm

Probe position, Medial segment, subsegment IV, quadrate lobe

Medial segment, subsegment IV, quadrate lobe

Liver / Liver in Longitudinal Sections · Longitudinal plane

Gas anatomy diagram, Medial segment, subsegment IV, quadrate lobe

Gas ultrasound image, Medial segment, subsegment IV, quadrate lobe

10Vena cava17Portal vein22Quadrate lobe27Medial segment30Gallbladder93Gas94Artifact

Probe position, Left lobe of liver, lateral segment, hepatic veins

Left lobe of liver, lateral segment, hepatic veins

Liver / Left Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Left lobe of liver, lateral segment, hepatic veins

Gas ultrasound image, Left lobe of liver, lateral segment, hepatic veins

10Vena cava11Left hepatic vein12Middle hepatic vein23Caudate lobe25Ligamentum venosum26Lateral segment27Medial segment28Anterior segment71Fundus of stomach93Gas94Artifact

Probe position, Left lobe of liver, lateral segment, caudate lobe

Left lobe of liver, lateral segment, caudate lobe

Liver / Left Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Left lobe of liver, lateral segment, caudate lobe

Gas ultrasound image, Left lobe of liver, lateral segment, caudate lobe

1Aorta10Vena cava11Left hepatic vein12Middle hepatic vein17Portal vein23Caudate lobe26Lateral segment27Medial segment28Anterior segment74Cardia93Gas94Artifact96Diaphragm

Probe position, Left lobe of liver, lateral segment, caudate lobe

Left lobe of liver, lateral segment, caudate lobe

Liver / Left Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Left lobe of liver, lateral segment, caudate lobe

Gas ultrasound image, Left lobe of liver, lateral segment, caudate lobe

1Aorta10Vena cava11Left hepatic vein12Middle hepatic vein17Portal vein23Caudate lobe26Lateral segment27Medial segment28Anterior segment71Fundus of stomach74Cardia93Gas94Artifact96Diaphragm

Probe position, Left lobe of liver, lateral segment, left portal vein branch

Left lobe of liver, lateral segment, left portal vein branch

Liver / Left Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Left lobe of liver, lateral segment, left portal vein branch

Gas ultrasound image, Left lobe of liver, lateral segment, left portal vein branch

1Aorta4Hepatic artery10Vena cava15Left renal vein17Portal vein18Splenic vein26Lateral segment27Medial segment43Tail of pancreas72Body of stomach93Gas94Artifact96Diaphragm

Probe position, Left lobe of liver, lateral segment, ligamentum teres

Left lobe of liver, lateral segment, ligamentum teres

Liver / Left Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Left lobe of liver, lateral segment, ligamentum teres

Gas ultrasound image, Left lobe of liver, lateral segment, ligamentum teres

1Aorta4Hepatic artery7Superior mesenteric artery10Vena cava15Left renal vein17Portal vein18Splenic vein22Quadrate lobe24Ligamentum teres26Lateral segment27Medial segment42Body of pancreas43Tail of pancreas45Pancreatic duct72Body of stomach93Gas94Artifact96Diaphragm

Probe position, Left lobe of liver, subsegment III, ligamentum teres

Left lobe of liver, subsegment III, ligamentum teres

Liver / Left Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Left lobe of liver, subsegment III, ligamentum teres

Gas ultrasound image, Left lobe of liver, subsegment III, ligamentum teres

1Aorta10Vena cava15Left renal vein22Quadrate lobe24Ligamentum teres26Lateral segment27Medial segment70Stomach93Gas94Artifact

Probe position, Medial and anterior hepatic segments, hepatic veins, caudate lobe

Medial and anterior hepatic segments, hepatic veins, caudate lobe

Liver / Central Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Medial and anterior hepatic segments, hepatic veins, caudate lobe

Gas ultrasound image, Medial and anterior hepatic segments, hepatic veins, caudate lobe

10Vena cava11Left hepatic vein12Middle hepatic vein13Right hepatic vein23Caudate lobe25Ligamentum venosum71Fundus of stomach93Gas

Probe position, Medial and anterior hepatic segments, caudate lobe

Medial and anterior hepatic segments, caudate lobe

Liver / Central Portions of the Liver in Transverse Sections · Transverse plane

Gas anatomy diagram, Medial and anterior hepatic segments, caudate lobe

Gas ultrasound image, Medial and anterior hepatic segments, caudate lobe

10Vena cava11Left hepatic vein12Middle hepatic vein13Right hepatic vein23Caudate lobe25Ligamentum venosum71Fundus of stomach93Gas

Anatomy diagrams, ultrasound images and probe positions are part of the Ultrasound Anatomy atlas. Colours follow the atlas legend, grouping vessels, organs and other structures by type.

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