Imaging Methods for Hepatobiliary and Pancreas

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Questions and Answers

Which term describes the system involving the liver and bile ducts?

  • Endocrine system
  • Respiratory system
  • Hepatobiliary system (correct)
  • Hematologic system

Which imaging technique is most commonly used for evaluating the hepatobiliary system?

  • CT scan
  • Ultrasound (correct)
  • X-ray
  • MRI

What is one of the main uses of imaging in the hepatobiliary system?

  • Evaluating liver function (correct)
  • Identifying bone fractures
  • Detecting heart disease
  • Assessing respiratory health

What type of imaging technique is NOT associated with Ultrasound (US)?

<p>MRI (A)</p> Signup and view all the answers

Which of the following is considered a routine 'staging' CT method?

<p>Portal venous phase CT (D)</p> Signup and view all the answers

Which option primarily focuses on characterizing lesions during imaging?

<p>Triple phase characterization CT (D)</p> Signup and view all the answers

What is the main purpose of CT cholangiography?

<p>To visualize biliary ducts (B)</p> Signup and view all the answers

Which imaging technique is least likely to be performed intraoperatively?

<p>Plain film imaging (C)</p> Signup and view all the answers

Which method is used in radionuclide imaging?

<p>Static imaging with colloid (C)</p> Signup and view all the answers

What is a characteristic of dynamic radionuclide imaging?

<p>It relies on iminodiacetic acid derivatives. (D)</p> Signup and view all the answers

Which of the following is a method for imaging the pancreas?

<p>Plain abdominal films (A)</p> Signup and view all the answers

What does static imaging with colloid primarily evaluate?

<p>Static distribution of radionuclides (D)</p> Signup and view all the answers

What type of films are referenced as being used for pancreatic imaging?

<p>Plain abdominal films (B)</p> Signup and view all the answers

Which imaging techniques are specifically categorized under ultrasonography?

<p>Transabdominal, Intraoperative (A)</p> Signup and view all the answers

Which imaging modality is considered least routine for biliary tree examination?

<p>Plain films (A)</p> Signup and view all the answers

Which procedure is typically used to visualize the coeliac axis?

<p>Arteriography (A)</p> Signup and view all the answers

What might be incidentally demonstrated on a plain film of the abdomen?

<p>Air within the biliary tree (C)</p> Signup and view all the answers

Which imaging methods are typically used for pancreatic calcification visualization?

<p>CT, Plain films (C)</p> Signup and view all the answers

What imaging technique is used specifically to visualize the biliary and pancreatic ducts?

<p>Endoscopic retrograde cholangiopancreatography (ERCP) (C)</p> Signup and view all the answers

Which procedure involves the injection of contrast directly into the bile ducts via the skin?

<p>Percutaneous transhepatic cholangiography (PTC) (B)</p> Signup and view all the answers

Which technique is primarily performed during surgical procedures to visualize the bile ducts?

<p>Operative cholangiography (C)</p> Signup and view all the answers

Which of the following imaging techniques is often used after surgery to check for bile leaks?

<p>Postoperative (T-tube) cholangiography (A)</p> Signup and view all the answers

Which imaging technique is NOT typically associated with visualizing the biliary system?

<p>Magnetic resonance imaging (MRI) (D)</p> Signup and view all the answers

Flashcards

Hepatobiliary System

The system within our body that processes and eliminates waste products from the blood. It is a complex network of organs that plays a vital role in digestion, nutrient absorption, and detoxification.

Radiography

A medical imaging technique that uses X-rays to create detailed images of the inside of the body.

Contrast Enhancement

A procedure where a contrast medium is injected into the circulatory system to enhance the visibility of specific organs and structures on radiographic images.

Ultrasound

A medical imaging technique that uses sound waves to create images of organs and tissues.

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Magnetic Resonance Imaging (MRI)

A type of medical imaging scan that uses magnetic fields and radio waves to create detailed images of tissues and organs.

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Plain Film

A simple imaging technique using X-rays to visualize internal structures. It provides basic information about organ shape and size.

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Ultrasound (US)

Non-invasive imaging technique using sound waves to create images. It's commonly used for examining the liver, gallbladder, and pancreas.

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Transabdominal Ultrasound

A type of Ultrasound examination conducted through the abdominal wall.

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Endoscopic Ultrasound

A type of Ultrasound performed using a probe inserted into the body through a natural orifice or surgical incision.

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Intraoperative Ultrasound

An Ultrasound procedure performed during surgery. It's used for visualizing tissues during a surgical procedure.

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ERCP (Endoscopic Retrograde Cholangiopancreatography)

A minimally invasive procedure that uses a thin, flexible tube with a camera attached (endoscope) to visualize the bile ducts and pancreatic duct. It can also be used for therapeutic procedures like removing stones or dilating narrowed areas.

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PTC (Percutaneous Transhepatic Cholangiography)

A procedure where a needle is inserted into the liver to inject contrast dye into the bile ducts. This allows for imaging of the ducts and any blockages.

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Operative Cholangiography

A type of cholangiography (bile duct imaging) performed during surgery. It involves injecting contrast dye directly into the bile ducts to evaluate their structure and identify any abnormalities.

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Postoperative (T-tube) Cholangiography

A procedure done after surgery to check the bile ducts. A small tube (T-tube) is left in the bile duct during surgery, and contrast dye is injected through it to visualize the duct.

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Endoscopic Retrograde Cholangiopancreatography (ERCP)

A type of ultrasound examination for the biliary system and pancreas.

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Arteriography

A type of radiographic study using contrast dye injected into arteries, mainly for diagnosis of vascular abnormalities.

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Computed Tomography (CT)

A type of X-ray imaging that uses a series of thin-beam X-rays to create cross-sectional images of the body.

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Radionuclide imaging of the pancreas

A medical imaging technique that utilizes radioactive substances to visualize the pancreas. It involves injecting a radioactive tracer and capturing images of its distribution within the pancreas.

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Plain abdominal films for pancreas imaging

A simple X-ray of the abdomen that can provide basic information about the size and shape of the pancreas.

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Dynamic radionuclide imaging of the pancreas

A type of radionuclide imaging that captures the pancreas's function over time. It uses radioactive iminodiacetic acid derivatives that are processed by the pancreas.

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Static radionuclide imaging of the pancreas

A type of radionuclide imaging that captures a static image of the pancreas. A radioactive colloid is injected and its distribution within the pancreas is imaged.

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Radionuclide imaging

A medical imaging technique that uses radioactive substances to visualize organs and tissues. It involves injecting a radioactive tracer and capturing images of its distribution within the body.

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Study Notes

Imaging Methods for the Hepatobiliary System

  • Methods for imaging the hepatobiliary system include plain film, ultrasound (transabdominal, endoscopic, intraoperative), computed tomography (CT), including routine staging (portal venous phase) and triple-phase characterization (CT), CT cholangiography, magnetic resonance imaging (MRI), endoscopic retrograde cholangiopancreatography (ERCP), percutaneous transhepatic cholangiography (PTC), operative cholangiography, postoperative cholangiography (T-tube), angiography (diagnostic and interventional), and radionuclide imaging (static with colloid, dynamic with iminodiacetic acid derivatives).

Imaging Methods for the Pancreas

  • Methods for imaging the pancreas include plain abdominal films, ultrasound (transabdominal, intraoperative, endoscopic), computed tomography (CT), and magnetic resonance imaging (MRI).

Plain Films

  • Plain films are not a routine imaging procedure for the pancreas or hepatobiliary system.
  • They may incidentally show air in the biliary tree or portal venous system, or opaque gallstones or pancreatic calcifications.

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