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Radiology

Radiology. Gastrointestinal Tract. Techniques. Fluoroscopy ， plain radiograph （ can find abnormal gas or calcification) Barium examination (BE) （ Mainly used ） CT( computed tomography). Barium---BaSO 4 (Barium sulfate) . Oral administration barium enema . good quality . Stable

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Radiology

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  1. Radiology Gastrointestinal Tract

  2. Techniques • Fluoroscopy，plain radiograph （can find abnormal gas or calcification) • Barium examination (BE)（Mainly used） • CT( computed tomography)

  3. Barium---BaSO4 (Barium sulfate)

  4. Oral administration • barium enema

  5. good quality • Stable • No absorption • Cheap • Few side effect • No hypersensitiveness

  6. side effect • Nausea，constipation，diarrhea • perforation of intestine，peritonitis，etc

  7. Taboo • Acute gastric-intestinal perforation • Esophago-tracheal fistula • Obstruction of colon

  8. Type Ⅰ • BaCl2 + Na2SO4 → BaSO4↓ + 2NaCl • BaCO3 + H2SO4 → BaSO4↓ + H2O + CO2↑ • BaCl2 + H2SO4 → BaSO4↓ +2HCl PS: BaCl2 :barium chloride BaCO3 :barium carbonate H2SO4 :sulphuric acid HCl：hydrochloric acid NaCl：sodium chloride Na2SO4 ：Sodium Sulfate H2O：water CO2 ：carbon dioxide

  9. TypeⅡ • Barite size reduction  BaSO4

  10. Barium examination • LAO; left anterior oblique • RAO; right anterior oblique right anterior oblique position • Other positions.

  11. Esophagus LAO

  12. Esophagus RAO

  13. Gastrointestinal Tract Position

  14. What’s this? • Diagnosis • Differential diagnosis

  15. Imagings • Mucosa imaging • Turgor (full) imaging • Compression imaging • Double contrast imaging (barium & gas )

  16. Mucosa imaging • Not too much barium • Which part is mucous membrane?

  17. Turgor (full) imaging • much barium • Appearance • Outline • peristaltic movement

  18. Compression

  19. Compression

  20. BE (Compression) VS Endoscopy

  21. Double contrast

  22. Mouth Anatomy Esophagus pharynx cardiac orifice Liver stomach common bile duct pyloric orifice duodenum colon cecum jejunum appendix rectum ileum

  23. Throat larynx sinus piriformis

  24. 食管解剖 impression of aortic arch Impression of left principal bronchus Impression of left atrium

  25. gastric fundus cardiac orifice cardiac orificezone lesser curvature gastric body pyloric orifice greater curvature angular notch pyloric orificezone sinus ventriculi

  26. Appearance of stomach Crochetage Fish hook

  27. horn of a cattle

  28. Cascade stomach

  29. asthenic type

  30. Mucosa of stomach

  31. peristaltic movement

  32. Duodenum • ‘C’ • Four parts: duodenal bulb; descending part ; horizontal part ; ascending part

  33. ???

  34. jejunum&ileum • jejunum :Feather (Mucous membrane ) • Ileum: few &superficial mucous membrane

  35. haustra of colon colon

  36. rectum

  37. Outline size Mucosa function Basic changes

  38. Outline • Filling defect • niche sign • diverticulum

  39. Filling defect

  40. Filling defect

  41. leiomyoma

  42. gastric cancer • face lying

  43. Filling defect –where?

  44. Leiomyoma of fundus

  45. Cecum cancer

  46. Gastrolith (Gastric stone) • Eat persimmon, hawthorn,date when the stomach is empty or after drinking alcohol

  47. persimmon

  48. hawthorn

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