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Related Concept Videos

Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

44
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
148

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Related Experiment Video

Updated: Aug 31, 2025

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
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Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction

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Update on Biliary Cancer Imaging.

Dong Wook Kim1, So Yeon Kim1, Changhoon Yoo2

  • 1Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea.

Radiologic Clinics of North America
|August 21, 2022
PubMed
Summary
This summary is machine-generated.

Biliary cancer (cholangiocarcinoma) diagnosis and treatment planning rely on advanced imaging like CT and MR. These techniques assess tumor extent, vascularity, and metastasis for optimal patient care.

Keywords:
Bile ductBiliary cancerCTCholangiocarcinomaMR imagingMRCP

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Area of Science:

  • Medical Imaging
  • Oncology
  • Gastroenterology

Background:

  • Biliary cancer, or cholangiocarcinoma, is a primary bile duct cancer.
  • It is classified as intrahepatic, perihilar, or distal based on location.
  • Accurate diagnosis and staging are crucial for effective treatment.

Purpose of the Study:

  • To review the role of advanced imaging in diagnosing and planning treatment for biliary cancer.
  • To highlight key imaging features for preoperative assessment, especially for extrahepatic cholangiocarcinoma.
  • To emphasize the impact of recent imaging advancements on patient management.

Main Methods:

  • Multiphase thin-section computed tomography (CT) for diagnosis and planning.
  • Magnetic resonance (MR) imaging with magnetic resonance cholangiopancreatography (MRCP) for detailed assessment.
  • Evaluation of key preoperative features: tumor extent, vascular involvement, nodal status, metastasis, and remnant liver volume.

Main Results:

  • CT is the primary modality for initial diagnosis and treatment planning.
  • MR imaging with MRCP offers complementary information on biliary anatomy and tumor spread.
  • Preoperative assessment identifies critical factors like longitudinal tumor extent, vascular invasion, and metastatic disease.

Conclusions:

  • Advanced imaging techniques are essential for comprehensive biliary cancer evaluation.
  • Improved image quality from recent advances aids in selecting optimal treatment strategies.
  • Accurate staging through imaging directly influences surgical and therapeutic decisions.