Abdomen CT

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Chapter 59 Abdomen CT


Hardi Madani, John Curtis and Helen Marmery



Introduction


‘This is a post-contrast/non-contrast axial/coronal/sagittal CT of the abdomen and pelvis.’



Summary




Life-threatening pathology



Peritoneal cavity and abdominal wall



Upper abdominal viscera



Small and large bowel



Pelvic viscera



Retroperitoneum



Extra-abdominal structures




Checklist: emergencies


First exclude life-threatening pathology: A3B2C1:




3 As




Abdominal aortic aneurysm



Acute pancreatitis



Air (free air caused by perforation)



2 Bs




Bowel ischemia



Bowel obstruction



1 C




Collections (free fluid, blood or abscesses).


Proceed to systematically review the abdomen and pelvis.



Checklist: systematic



Peritoneum and abdominal wall




Free air



Free fluid



Collections: pelvic, subdiaphragmatic, paracolic gutters, inter-loop, lesser sac



Abdominal wall: hernias, laparotomies, stomas, other tissue defects, surgical emphysema



Upper abdominal organs




Liver



Gallbladder and biliary tree



Pancreas



Spleen



Intestines




Stomach and duodenum



Small bowel



Large bowel



Appendix



Pelvic viscera




Rectum and sigmoid colon



Bladder and prostate



Uterus and adnexae



Retroperitoneum




Kidneys, ureters and bladder



Aorta



Extra-abdominal checks




Lung bases



Bones



Foreign objects and medical devices



Examination notes: general



What are the general principles of CT scanning?




CT scans are normally performed with intravenous contrast, which appears white.

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Feb 18, 2017 | Posted by in GENERAL SURGERY | Comments Off on Abdomen CT

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