Iodinated Contrast Media — Flashcards

Flashcard 1: MRCP does _____ require external contrast administration

Answer: not

Flashcard 2: _____-Contrast studies are optimal for patients unable to swallow gas-forming tablets

Answer: Single (Double/Single)

Flashcard 3: In suspected perforation, _____ contrast with water-soluble medium preferred

Answer: single (double/single)

Flashcard 4: The contrast agent used for MRI is _____.

Answer: Gadolinium

Flashcard 5: What is the contrast medium used for the diagnosis of tracheoesophageal fistula?

Answer: Non-ionic water-soluble contrast (e.g., Iohexol) or Dionosil

Extra: - **Non-ionic water-soluble contrast** (e.g., Iohexol, Iopamidol) is the modern contrast of choice for diagnosing tracheoesophageal fistula (TEF) because it is safe if aspirated. - **Dionosil** (propyliodone) was historically used for bronchography and TEF but is now largely obsolete. - **Barium** is avoided because it can cause a severe granulomatous reaction/fibrosis in the lungs. - **High-osmolar ionic water-soluble contrast** (e.g., Gastrografin) is avoided because it can cause life-threatening pulmonary edema if aspirated.

Flashcard 6: What is the contrast medium used for the diagnosis of esophageal perforation?_____

Answer: Iohexol

Flashcard 7: _____ helps in increasing the diagnostic capability of MRCP.

Answer: Secretin

Flashcard 8: In _____ view the patient lies in such a way that the sagittal plane of the skull is parallel to the film and the X-ray beam is projected 15 cephalocaudal

Answer: Laws

Flashcard 9: _____ provides best visualisation of distal biliary tract

Answer: ERCP

Flashcard 10: _____ provides best visualisation of proximal biliary tract

Answer: PTC