CONTRAST STUDIES OF GIT

Question 1

Advantages of Contrast Studies

Answer 1

u Hollow organs that are air-filled can be identified on Plain radiographs u But their real contour and inner mucosa cannot be clearly seen

 Introduction of contrast coats the lining and reveals the condition of the mucosa and caliber of the lumen

Question 2

Answer 2

Plain Film of abdomen showing the stomach bubble

Question 3

Answer 3

Contrast Study of the stomach showing the mucosa of the stomach

Question 4

Disadvantages ContraST STUDY

Answer 4

u Patient may not be able to tolerate the procedure
u May have allergy to the contrast
u Some procedures are contraindicated under certain conditions
u Extravasations of barium from GI Tract may cause peritonitis
u Radiation

Question 5

Types of Contrast Examinations

Answer 5

u Esophagogram

 Barium meal or Upper GI Series; Small Intestinal Series

u Enterocylsis

u Barium enema

Question 6

Types of Contrast Agents

Answer 6

u Oral/ Rectal contrast agents

u Barium – barium sulphate

u Water soluble – iodinated compounds

u (ionic) meglumine diatrizoate (Gastrograffin

) u (non-ionic) – iopamidol (Niopam)

u Effervescent Granules/Air u Carbex granules – release carbon-di-oxide

Question 7

Effervescent granules -

release carbon-di-oxide which create the air contrast with liquid barium sulphate suspension