CT ABDOMEN/PELVIS ANATOMY USC/SOM Department of Radiology Kirk Peterson, MD Class of 2004.
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Transcript of CT ABDOMEN/PELVIS ANATOMY USC/SOM Department of Radiology Kirk Peterson, MD Class of 2004.
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
Follow the IV contrast filled Aorta as we descend caudally. Branches and pointsof interest will be noted.
This is an excellent image of the right, middle and left hepatic veins draining into the InferiorVena 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.
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 splenicvein and artery are in the lower left
Renal Veins emptying into the IVC. We also see the right renal artery branchingoff 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,
youwill see it empty into the Portal Vein.
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.
Note inferior mesenteric artery emerging from aortaInferior mesenteric vein extends cephalad to join smv.
Aorta bifurcates into common illiac arteriesAppendix is noted coiling in Rt. Lower quadrantNote air in lumen on adjacent scans
Psoas muscles