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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...
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...
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...

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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
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Computed tomography colonography in acromegaly.

Eugenia Resmini1, Alberto Tagliafico, Lorenzo Bacigalupo

  • 1Department of Endocrine and Medical Sciences, University of Genova, Viale Benedetto XV, 6, 16132 Genova, Italy.

The Journal of Clinical Endocrinology and Metabolism
|October 30, 2008
PubMed
Summary
This summary is machine-generated.

Computed tomography (CT)-colonography shows promise for screening colorectal cancer in acromegaly patients. This CT scan can detect polyps and cancer, potentially replacing traditional colonoscopy for acromegaly screening.

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Area of Science:

  • Endocrinology
  • Gastroenterology
  • Radiology

Background:

  • Acromegaly patients face a higher risk of colorectal cancer.
  • Screening colonoscopy has been recommended for acromegaly patients since 1996.

Purpose of the Study:

  • To assess the feasibility of CT-colonography in acromegaly patients.
  • To evaluate the efficacy of CT-colonography for colorectal cancer screening in acromegaly.

Main Methods:

  • 23 acromegaly patients without prior colorectal cancer history underwent CT-colonography.
  • 20 patients subsequently had traditional colonoscopy for comparison.

Main Results:

  • CT-colonography yielded adequate results in 73% of patients.
  • 12 polyps were detected in 8 patients, with 95% confirmed by colonoscopy.
  • CT-colonography identified all lesions found by traditional colonoscopy, including one sigmoid cancer.

Conclusions:

  • CT-colonography is a feasible and effective tool for colorectal cancer screening in acromegaly.
  • CT-colonography may serve as a viable alternative to traditional colonoscopy for this patient group.