1. Abdominal Imaging

2. The abdominal radiograph

3. Why do we see any structure on a normal abdominal radiograph? It has to be surrounded by tissue of different attenuation (x-ray stopping power). we therefore see margins delineated by air (the mucosal surface of air filled bowel) Things outlined by fat (usually the kidneys. the psoas margins,the bladder and the abdominal wall).

4. We can only see gas soft tissue (effectively water density)- viscera, bowel and bowel wall, bladder. bone and calcium-stones, calcified lymph nodes,stones(90% renal, 10% gallstones) Fat

5. Properitoneal fat Transversus abdominis

10. A FEW INTERESTING RADIOGRAPHS

11. Gas outside the bowel. Outling both the inside and outside of the bowel. Free gas

12. DILATED LARGE BOWEL WITH NO BOWEL WALL THICKENING Turned out to be a sigmoid tumour.

14. Gross large bowel wall thickening. Secondary to ulcerative colitis

15. Causes of colitis Inflammatory bowel disease Ischaemic colitis Pseudomembranous colitis Amoebic,schistosoma etc

16. Gas outside the bowel. Outling both the inside and outside of the bowel. Free gas

17. Aortic aneurysm

20. Basic CT Anatomy

21. mhv rhv IVC anterior posterior right left

23. gb rk ra cl (1) stomach anterior posterior right left spleen pv ha

32. anterior posterior right left rk lk pancreas sv d cd

33. Fluid in lesser sac gallbladder

35. Renal pelvis Renal artery Renal vein

36. uu anterior posterior right left

37. u u anterior posterior Right left

38. anterior posterior right left u u bladder nav

41. Left gastric A Gastroduodenal A Common Hepatic A Splenic A Pancreaticoduodenal A Right gastric –small, from proper hepatic or Lt gastric

44. Image of an aneurysm to discuss suitability