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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...
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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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Related Experiment Video

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Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
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Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans

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Computed tomographic colonography.

Ancil K Philip1, Meghan G Lubner, Bruce Harms

  • 1Department of General Surgery, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792-7375, USA.

The Surgical Clinics of North America
|December 28, 2010
PubMed
Summary
This summary is machine-generated.

Computed tomographic colonography (CTC) offers a minimally invasive method for detecting colon cancer and obstructions. This review covers CTC preparation, procedures, clinical applications, and compares its effectiveness against other diagnostic tools.

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Area of Science:

  • Gastroenterology
  • Radiology
  • Medical Imaging

Background:

  • Computed tomographic colonography (CTC) is an emerging imaging technique for colorectal evaluation.
  • Accurate preparation and standardized methods are crucial for effective CTC examinations.

Purpose of the Study:

  • To provide fundamental information on computed tomographic colonography (CTC).
  • To review the procedural aspects, clinical utility, and comparative accuracy of CTC.
  • To discuss the benefits, risks, and implementation practicalities of CTC.

Main Methods:

  • Review of existing literature and guidelines on CTC.
  • Description of patient preparation protocols.
  • Explanation of imaging techniques and necessary equipment.
  • Comparative analysis of CTC with other diagnostic modalities (e.g., colonoscopy).

Main Results:

  • CTC is effective for screening and diagnosing colon cancer and colonic obstruction.
  • The accuracy and validity of CTC are comparable to established methods.
  • Benefits include its non-invasive nature, while risks are associated with radiation exposure.

Conclusions:

  • CTC is a valuable tool in colorectal diagnostics and screening.
  • Understanding its practical implementation is key for widespread adoption.
  • Further research may refine its role in clinical practice.