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Related Concept Videos

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
Positron Emission Tomography01:29

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...

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Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
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Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers

Published on: July 17, 2012

Computed tomographic colonography.

Rizwan Aslam1, Judy Yee

  • 1University of California San Francisco, CA, USA. rizwan.aslam@radiology.ucsf.edu

Expert Review of Gastroenterology & Hepatology
|December 17, 2008
PubMed
Summary
This summary is machine-generated.

Computed tomographic colonography offers a patient-friendly alternative to invasive colon evaluations. This review covers its current applications, essential performance steps, interpretation methods, and future advancements in colon imaging.

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Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Radiology

Background:

  • Computed tomographic colonography (CTC) is an advanced non-invasive imaging technique for colon evaluation.
  • It presents a potentially more appealing alternative to traditional invasive colonoscopy for patients.
  • Technological advancements continue to enhance CTC's diagnostic capabilities.

Purpose of the Study:

  • To review the current status and potential of computed tomographic colonography.
  • To outline the essential steps for performing diagnostic-quality CTC.
  • To discuss various methods for interpreting CTC studies and explore future research directions.

Main Methods:

  • Review of existing literature on computed tomographic colonography.
  • Discussion of procedural steps for image acquisition.
  • Analysis of interpretation techniques and reporting standards.

Main Results:

  • CTC is a viable, less invasive option for colon assessment.
  • Standardized protocols are crucial for diagnostic quality.
  • Interpretation requires specific expertise, with ongoing refinements.

Conclusions:

  • Computed tomographic colonography is a valuable tool in modern colon evaluation.
  • Further research is needed to optimize techniques and expand applications.
  • Patient preference and technological innovation are key drivers for CTC development.