Sonography Aorta Cranially Heart Celiac Branch Sagittal

Celiac Root Pancreas Anatomy

Vessels

Celiac Trunk Anatomy Celiac Trunk Anatomy Sono

The celiac trunk runs slightly to the right, giving rise to the hepatic artery.

Celiac Artery Ultrasound

The splenic artery branches from the celiac trunk at a right angle.

Celiac Trunk Ultrasound
► 7 Superior mesenteric artery
Aorta Branches Ultrasound
► 8 Superior mesenteric artery
Superior Mesenteric Artery Ultrasound
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The superior mesenteric artery arises just below the celiac trunk and runs parallel to the aorta.

Superior Mesenteric Artery Ultrasound

The root of the superior mesenteric artery is usually surrounded by an echodense fat pad.

Mesenteric Fat Pad

► 9 Superior mesenteric artery and splenic vein

► 9 Superior mesenteric artery and splenic vein

Ultrasound Images Aorta And Branches
► 10 Left renal vein and right renal artery
Ultrasound Pancreas Landmarks

The aorta, the superior mesenteric artery, and the splenic vein crossing over the superior mesenteric artery provide landmarks for identifying the head of the pancreas.

Vascular Landmarks Pancreas

The left renal vein is physiologically compressed between the aorta and the superior mesenteric artery. It is slightly congested proximal to the compression site.

Ultrasound Superior Mesenteric Artery
► 11 Infrarenal aorta and vena cava
Proximal Ivc Ultrsound
► 12 Infrarenal aorta and vena cava
Aorta Anatomy

The vena cava is easily compressible with the transducer, and it bears impressions from adjacent organs.

Ultrasound Circular Transducer

The aorta has a circular cross section, whereas the vena cava is somewhat flattened.

Proximal Ivc Ultrsound
► 1B Infrarenal aorta and vena cava
Echo Images Superior Vena Cava
► 14 Infrarenal aorta, vena cava, and superior mesenteric artery and vein
Mesenteric Artery Ultrasound

The caliber of the vena cava varies with the pulse and respirations. The diameter of the aorta measures 2.5 cm in its cranial portion, 2.0 cm in its caudal portion.

Aorta Anatomy

Together with the aorta and vena cava, the superior mesenteric artery and vein form a typical four-vessel pattern in a low transverse scan through the upper abdomen.

Abdominal Aorta Sonographic Anatomy
► 16 Aortic bifurcation
Ultrasound Abdomen Anatomy Pic

While the aorta and vena cava are relatively far apart in the upper abdomen, they converge at the level of the promontory, coming very close together.

Bifurcation Iliac Vessel Vertebral Body
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The aorta divides into the common iliac arteries at the level of the L4 vertebral body, above the promontory.

Ultrasound Iliac Artery Dissection
► 17 Iliac arteries
Common Iliac Artery Location
► 18 Confluence of iliac veins
Aorta Bifurcation
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The aortic bifurcation is located slightly above the confluence of the iliac veins.

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The confluence of the iliac veins lies approximately at the level of the umbilicus.

Aorta Bifurcation Level
► 19 Iliac vessels
Ultrasound Images The Iliac Vessels
► 20 Iliac vessels
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The iliac arteries are first anterior and then lateral to the iliac veins.

How Scan Iliac Confluence

The iliac vessels follow the concavity of the lesser pelvis to the femoral arteries.

Iliac Vessels
► 22 Iliac vessels
How Scan Iliac Confluence
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In serial transverse scans down the iliac vessels, the sections of the vessels are seen to move laterally and posteriorly.

Left Gastric Artery Ultrasound

The iliac vessels are more difficult to scan at lower levels due to intervening bowel gas.

Left Iliac Image
► 24 Left iliac vessels
Anatomy Inguinal Vessels
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The iliac veins run dorsomedial to the iliac arteries in the lesser pelvis.

Inguinal Ligament Ultrasound

The iliac veins are always medial to the arteries at the level of the inguinal ligament.

Inguinal Ligament Ultrasound
► 26 Splenic artery and left gastric artery
Left Gastric Artery Ultrasound

Because the celiac trunk runs slightly to the left initially, often it is not displayed in a longitudinal scan centered over the aorta.

Left Gastric Artery Sonographic Anatomy

The left gastric artery runs cranially between the common hepatic artery and splenic artery. It is often difficult to define.

Celiac Trunk Anatomy Ultrasound

► 28 Splenic artery and vein, celiac trunk

Imaging The Splenic Artery And Vein

The curved course of the celiac trunk and splenic artery explains why both vessels appear in the same sagittal section.

Celiac And Splenic Vessels Scan

► 30 Splenic artery and vein, renal artery and vein

Kidney Anatomy Uiltrasound

The splenic artery turns left and runs posteriorly with the splenic vein to the hilum of the spleen.

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Longitudinal scan on the left side shows the typical appearance of the large splenic and renal veins and the smaller splenic and renal arteries.

Celiac Branches
► 31 Celiac trunks
Splenic Artery Ultrasound Longitudinal
► 32 Hepatic artery and splenic vein
Celiac Ultrasound

The origin of the celiac trunk and its division into branches are subject to numerous variations.

Porta Hepatis Ultrasound Anatomy

The hepatic artery turns upward and to the right and runs along the inferior border of the liver toward the porta hepatis.

Ligamentum Teres Hepatis Ultrasound
► 33 Hepatic artery and superior mesenteric vein
Portal Confluence Anatomy Ultrasound
► 34 Hepatic artery and portal vein

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A longitudinal scan between the aorta and vena cava typically displays sections of four vessels: the hepatic artery, venous confluence, left renal vein, and right renal artery.

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A longitudinal scan over the vena cava displays four typical vascular sections: the vena cava, portal vein, hepatic artery, and renal artery.

Left Hepatic Vein With Aorta
► 35 Aorta
Porta Hepatis Ultrasound Anatomy
► 36 Right renal artery and left renal vein
Sagittal Ultrasound Left Renal Vein

The section of the right renal artery can be identified between the aorta and vena cava. just above the renal artery are the left renal vein and a longitudinal section of the superior mesenteric vein.

Superior Mesenteric Vein Anatomy
► 37 Vena cava and right renal artery
Transverse Scan Right Renal Artery
► 38 Right renal artery and right renal vein

The right renal artery usually impresses the posterior surface of the vena cava, although variants may occur.

Right Posterior Duct Variant

The renal veins are often more than twice the diameter of the renal arteries.

Ultrasound Kidney Tree Branch
► 39 Opening of renal vein
Aorta Ultrasound Anatomy
► 40 Renal vein
Kidney Anatomy

The opening of the right renal vein at the vena cava can be clearly defined above the kidney in most subjects.

Ultrasound Anatomy Kidneys

In serial transverse scans down the vena cava, the oval cross section of the renal vein separates from the vena cava and moves laterally toward the kidney.

Transverse Plane Aorta Ultrasound
► 41 Renal vein at hilum, renal artery
Right Renal Artery Ultrasound Location
► 42 Renal artery
Anatomy Sonography Kidney

The renal artery follows the same course as the renal vein, but at a slightly more caudal level.

Ultrasound Renal Arteries Transverse

The renal arteries are located posterior and caudal to the renal veins.

Left Renal Vein Ultrasound
► 44 Right renal artery and left renal vein
Transverse Scan Right Renal Artery

The right renal artery passes behind the vena cava, impressing its posterior surface.

Right Renal Artery Ultrasound Location

The scan plane cuts the left renal vein and right renal artery between the aorta and vena cava.

Aorta Portal Triad
► 45 Aorta and left renal vein
Aorta Ultrasound
► 46 Left renal vessels, splenic artery and vein
Renal Ultrasound Vessels Anatomy

The left renal vein runs between the aorta and superior mesenteric artery.

Renal Ultrasound Vessels Anatomy

The left renal vessels are often difficult to scan because of overlying air.

Portal Triad Ultrasound
► 47 Portal vein, vena cava, right renal artery
Hepatic Triad Ultrasound
► 48 Portal vein, vena cava, right renal artery
Ivc Branches Ultrasound

The triad of the portal vein, vena cava, and right renal artery provides a typical landmark in the upper abdominal longitudinal scan.

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When the triad of the portal vein, vena cava, and right renal artery is identified, the scan will usually include a longitudinal section of the bile duct.

Ligamentum Teres Hepatis Ultrasound
► 50 Portal vein and hepatic artery
Portal Triad Anatomy

The bile duct enters the head of the pancreas anterior to the vena cava.

Pancreas Sagittal Ultrasound

The portal vein and hepatic artery run side-by-side posterior to the head of the pancreas.

Right Portal Vein Anterior Ultrasound
► 51 Hepatic artery, superior mesenteric vein
Right Portal Vein Anterior Ultrasound
► 52 Hepatic artery, superior mesenteric artery, and splenic vein
Splenic Artery Ultrasound Longitudinal

When the mesenteric vein is viewed in longitudinal section, typically the scan will also display the hepatic artery cranially and the right renal artery and left renal vein posteriorly.

Right Hepatic Artery Longitudinal

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When the superior mesenteric artery is viewed in longitudinal section, typically the scan will also show the hepatic artery, splenic vein, and left renal vein.

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Mesenteric Ultrasound Anatomy

► SB Hepatic artery, portal vein, vena cava

Bile Duct And Portal Vein
► 54 Hepatic artery, bile duct, portal vein

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The portal vein runs between the vena cava and hepatic artery.

Vena Portae Cava

The hepatic artery runs cephalad into the porta hepatis.

Ligamentum Teres Hepatis
► SS Bile duct, gallbladder, vena cava
Porta Hepatis Ultrasound Anatomy
► 56 Bile duct, gallbladder, superior mesenteric vein
Porta Hepatis Ultrasound Anatomy

The bile duct is identified medial to the gallbladder and anterior to the vena cava.

Gallbladder Ultrasound Anatomy

The bile duct runs parallel to the superior mesenteric vein for a short distance, then turns laterally to the right toward the papilla.

57 Left lobe of liver, lateral segment, subsegments II and III

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

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

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

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

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

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

64 Medial segment, subsegment IV, quadrate lobe

65 Gallbladder, portal vein, vena cava, boundary between medial and anterior segments

66 Middle hepatic vein, boundary between medial and anterior segments

67 Anterior segment, subsegments VIII and V

68 Right hepatic vein, boundary between anterior and posterior segments

69 Posterior segment, subsegments VII and VI

70 Posterior segment, lateral portions of liver, kidney

Left Portions of the Liver in Transverse Sections

71 Left lobe of liver, lateral segment, heart

72 Left lobe of liver, lateral segment, heart

73 Left lobe of liver, lateral segment, hepatic veins

74 Left lobe of liver, lateral segment, caudate lobe

75 Left lobe of liver, lateral segment, caudate lobe

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

77 Left lobe of liver, lateral segment, ligamentum teres

78 Left lobe of liver, subsegment III, ligamentum teres

Central Portions of the Liver in Transverse Sections

79 Medial and anterior hepatic segments, opening of hepatic veins

80 Medial and anterior hepatic segments, opening of hepatic veins

81 Medial and anterior hepatic segments, hepatic veins, caudate lobe

82 Medial and anterior hepatic segments, hepatic veins, caudate lobe

83 Medial and anterior hepatic segments, caudate lobe

84 Medial and anterior hepatic segments, left portal vein branch, caudate lobe

85 Medial and anterior hepatic segments, left portal vein branch, caudate lobe

86 Medial and anterior hepatic segments, left portal vein branch, caudate lobe

87 Medial and anterior hepatic segments, bifurcation of portal vein

88 Medial and anterior hepatic segments, bifurcation of portal vein

89 Medial and anterior hepatic segments, right portal vein branch

90 Medial and anterior hepatic segments, right and left portal vein branches

91 Medial and anterior hepatic segments, right and left portal vein branches

92 Medial and anterior hepatic segments, quadrate lobe, ligamentum teres, portal vein

93 Medial and anterior hepatic segments, quadrate lobe, ligamentum teres, portal vein

94 Medial and anterior hepatic segments, quadrate lobe, ligamentum teres, gallbladder

95 Medial and anterior hepatic segments, quadrate lobe, ligamentum teres, gallbladder

96 Inferior border of liver, kidney, gallbladder, ligamentum teres

Right Portions of the Liver in Transverse Sections

97 Posterior segment, cranial subsegment

98 Posterior segment, portal vein

99 Posterior segment, caudal subsegment, kidney 100 Posterior segment, inferior border

Ultrasound Ligamentum Terres
► 57 Left lobe of liver, lateral segment, subsegments II and III
Liver Lobes Ultrasound Images

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

Liver Segments

The liver is divided into a left and a right lobe on anatomical criteria. The left lobe corresponds to the lateral segment; the right lobe consists of the medial, anterior, and posterior segments.

Quadrate Liver Lobe Ultrasound

On functional criteria, the lateral and medial segments belong to the left lobe of the liver while the anterior and posterior segments belong to the right lobe.

Ultrasound Abdomen Anatomy Pic

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

Ultrasound Abdomen Anatomy Pic

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

Ultrasound Abdomen Anatomy Pic
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Responses

  • SAMLAD BRANDYBUCK
    Does left renal vein course transversely at level of upper panc head?
    6 years ago
  • ANACLETO
    Where is illiac artery?
    5 years ago
  • adelgrim
    Is the superior mesenteric vein located right above the proximal aorta?
    5 years ago
  • Aldo
    How to ultrasoung scan celiac artery?
    5 years ago
  • Sakari
    How to scan on ultrasound celiac arteries?
    4 years ago

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