CT ABDOMEN/PELVIS ANATOMY USC/SOM Department of Radiology Kirk Peterson, MD Class of 2004 - PowerPoint PPT Presentation

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CT ABDOMEN/PELVIS ANATOMY USC/SOM Department of Radiology Kirk Peterson, MD Class of 2004 PowerPoint Presentation
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CT ABDOMEN/PELVIS ANATOMY USC/SOM Department of Radiology Kirk Peterson, MD Class of 2004

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  1. CT ABDOMEN/PELVIS ANATOMY USC/SOM Department of Radiology Kirk Peterson, MD Class of 2004

  2. In this sequence of images, we will label the abdominal vasculature. The CT images are 5mm slices with soft tissue window settings. IV and oral contrast have been administered which causes the vessels and GI tract to appear hyperdense (white). Some images will contain labels to assist with tracking the vessels. Practice paging up and down to trace vessel’s origin and termination. It is best to view these images in the movie mode IMAGES ARE VIEWED AS LOOKING FROM THE FEETRIGHT LEFT

  3. Follow the IV contrast filled Aorta as we descend caudally. Branches and points of interest will be noted.

  4. Azygous Vein. Hemiazygous Vein

  5. This is an excellent image of theright, middle and left hepatic veins draining into the Inferior Vena Cava.Don’t confuse this structure with the IVC, this is the esophagus at the level of the Lower esophageal sphincter, page up and down to confirm this.

  6. The outline of the Inferior Vena Cava is more distinct in this image.

  7. Portal Vein Branching into the Liver Stomach Liver

  8. More portal vein branching into the liver lobes

  9. Splenic Artery. Splenic Vein. Scroll up and down to confirm. Spleen

  10. Splenic Vein

  11. Proper Hepatic Artery. Splenic Vein Portal vein Adrenal Glands

  12. You can see the Celiac artery starting to branch from the Aorta. You can follow this down in the next four images Proper Hepatic Artery is labeled in the upper right The splenic vein and artery are in the lower left

  13. Proper Hepatic Artery and Splenic Artery (the splenic artery is the circle). Splenic Vein

  14. Here the Splenic Vein is emptying into the portal vein. Follow this up and down. Pancreas

  15. This is the Superior Mesenteric Artery branching off the Aorta.

  16. Rt. and Lt.Kidneys Pancreas

  17. Renal Veins emptying into the IVC. We also see the right renal artery branching off the Aorta, follow it down till you see it enter the right kidney. The Superior Mesenteric Vein is outlined on the top of this image. If you follow the SMV up, you will see it empty into the Portal Vein.

  18. Here we see the right and left renal vein entering into the Inferior Vena Cava. We Also see the left renal artery branching off the aorta and heading toward the left kidney. Page up and down to trace these vessels.

  19. Superior Mesenteric Vein – follow it up as it joins the Splenic Vein to form the Portal Vein

  20. Transverse Colon Small Bowell

  21. Note inferior mesenteric artery emerging from aorta Inferior mesenteric vein extends cephalad to join smv.

  22. Aorta bifurcates into common illiac arteries Appendix is noted coiling in Rt. Lower quadrant Note air in lumen on adjacent scans Psoas muscles