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By, Akash Das
Student Code- BWU/BRI/19/005
Paper Code- BMRIT-305
Oral Cholecystography
(OCG)
• Definition:
Oral Cholecystography or Oral Cholecystogram is the
radiographic study of gallbladder by the oral administration
contrast media.
Oral Cholecystography (OCG)
• It was developed in 1924 by
American surgeons E.A
Graham & W. H Cole.
• But now days it is largely
superseded by ultrasound
and MRCP.
• This is the initial examination for the investigation of
biliary tract.
Fig- 1: Gallbladder
• Inflammation of the organ.
• Other abnormalities like polyps.
• Tumors
• Gallstones
• To visualizing cystic duct and common bile.
• To demonstrate suspected pathology in the
gallbladder.
Fig- 3: Gallstone Formation
Fig- 2: Polyp Inside Gallbladder
• Pr severe hepatorenal disease.
• Acute cholecysititis
• Iodine sensitivity
• Pregnancy
• Dehydration
• An IV cholecystography within the previous week
evious cholecystectomy.
Fig- 4: Acute Cholecysititis Fig- 5: Pregnancy
• Patient should take low residue diet
for 2 days prior to examination.
• A laxative 2 days prior to the
examination.
• The CM is taken with water 14 hours
prior to the examination.
• A fat-containing meal after
preliminary film, if the gallbladder is
not visualize by contrast media.
• Food is forbidden until the
examination is completed.
Fig-6: Gall Stone Formation
Fig-7: Radiographic Appearance of GB
1. Biloptin 2. Telepaque
3. Cholebrin 4. Solu-Biloptin
1. Prone 20º LAO
2. Supine 20º RPO
3. Erect 20º LAO
4. Fatty meal provided.
• Prone 20º LAO 30 minutes
after a fatty meal. Fig- 9: Positioning of patient for OCG
Fig- 8: Biloptin Capsules
• A night before the examination 6 tablet of Teleopaque or
Biloptin is given orally.
• After 12-16 hours a prone oblique view with right side
raised to 20º is taken for gallbladder visualization.
• After the preliminary film taken, the patient lie in the supine
position and appropriate spot film of the gallbladder are
taken.
• Ask the patient to eat fatty meal.
• After 30-40 min. films are taken to assess the contractibility
of the gallbladder and small filling defect. (stones or
polpyps)
• Cystic and common bile duct also visualized in post fatty
meal films.
* If the GB not visualized a "double dose" OCG may have to be
performed where the patient takes in all 12 tablets of CM.
• Mild gastrointestinal disturbances
• Skin reactions
• Uricosuric action
• Impaired renal function
• Psedoalbuminuria
• Abnormal thyroid function tests
• Increased effect of protein-bound drugs
because of shared binding with albumen
Fig- 11: Gastrointestinal Disturbances
Fig- 10: Skin Reactions
There are many ways by which
we can protect our self from
scattered radiation, like-
 By using
• Protective apron:0.5mmPb
• Lead shield:0.5mm Pb
• Lead protective gloves.
• Film badge or TLD monitor.
 And also we should always
the rule of TDS & ALARA
principle
 We can also use beam
limiting devices like cone to
minimize the radiation dose. Fig- 14: Beam Limiting Device (Cone)
Fig- 13: Cardinal’s principle (TDS)
Fig- 12: Lead apron, shield, gloves & TLD
THANK YOU

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OCG (Oral cholecystogram) BY Akash Das

  • 1. By, Akash Das Student Code- BWU/BRI/19/005 Paper Code- BMRIT-305 Oral Cholecystography (OCG)
  • 2. • Definition: Oral Cholecystography or Oral Cholecystogram is the radiographic study of gallbladder by the oral administration contrast media. Oral Cholecystography (OCG) • It was developed in 1924 by American surgeons E.A Graham & W. H Cole. • But now days it is largely superseded by ultrasound and MRCP. • This is the initial examination for the investigation of biliary tract. Fig- 1: Gallbladder
  • 3. • Inflammation of the organ. • Other abnormalities like polyps. • Tumors • Gallstones • To visualizing cystic duct and common bile. • To demonstrate suspected pathology in the gallbladder. Fig- 3: Gallstone Formation Fig- 2: Polyp Inside Gallbladder
  • 4. • Pr severe hepatorenal disease. • Acute cholecysititis • Iodine sensitivity • Pregnancy • Dehydration • An IV cholecystography within the previous week evious cholecystectomy. Fig- 4: Acute Cholecysititis Fig- 5: Pregnancy
  • 5. • Patient should take low residue diet for 2 days prior to examination. • A laxative 2 days prior to the examination. • The CM is taken with water 14 hours prior to the examination. • A fat-containing meal after preliminary film, if the gallbladder is not visualize by contrast media. • Food is forbidden until the examination is completed. Fig-6: Gall Stone Formation Fig-7: Radiographic Appearance of GB
  • 6. 1. Biloptin 2. Telepaque 3. Cholebrin 4. Solu-Biloptin 1. Prone 20º LAO 2. Supine 20º RPO 3. Erect 20º LAO 4. Fatty meal provided. • Prone 20º LAO 30 minutes after a fatty meal. Fig- 9: Positioning of patient for OCG Fig- 8: Biloptin Capsules
  • 7. • A night before the examination 6 tablet of Teleopaque or Biloptin is given orally. • After 12-16 hours a prone oblique view with right side raised to 20º is taken for gallbladder visualization. • After the preliminary film taken, the patient lie in the supine position and appropriate spot film of the gallbladder are taken. • Ask the patient to eat fatty meal. • After 30-40 min. films are taken to assess the contractibility of the gallbladder and small filling defect. (stones or polpyps) • Cystic and common bile duct also visualized in post fatty meal films. * If the GB not visualized a "double dose" OCG may have to be performed where the patient takes in all 12 tablets of CM.
  • 8. • Mild gastrointestinal disturbances • Skin reactions • Uricosuric action • Impaired renal function • Psedoalbuminuria • Abnormal thyroid function tests • Increased effect of protein-bound drugs because of shared binding with albumen Fig- 11: Gastrointestinal Disturbances Fig- 10: Skin Reactions
  • 9. There are many ways by which we can protect our self from scattered radiation, like-  By using • Protective apron:0.5mmPb • Lead shield:0.5mm Pb • Lead protective gloves. • Film badge or TLD monitor.  And also we should always the rule of TDS & ALARA principle  We can also use beam limiting devices like cone to minimize the radiation dose. Fig- 14: Beam Limiting Device (Cone) Fig- 13: Cardinal’s principle (TDS) Fig- 12: Lead apron, shield, gloves & TLD