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Related Concept Videos

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 VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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 IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...

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Updated: Jun 26, 2026

Multimodality Diagnosis of Mesenteric Ischemia
05:07

Multimodality Diagnosis of Mesenteric Ischemia

Published on: July 21, 2023

Imaging of ischemic colitis.

P Taourel1, Sophie Aufort, Samuel Merigeaud

  • 1Department of Imaging, CHU Montpellier, Hospital Lapeyronie, 371 Avenue du Doyen Gaston-Giraud, 34295 Montpellier Cedex 5, France. p-taourel@chu-montpellier.fr

Radiologic Clinics of North America
|December 24, 2008
PubMed
Summary
This summary is machine-generated.

Ischemic colitis, a common cause of gastrointestinal ischemia in the elderly, presents with rectal bleeding and abdominal pain. This review details its diagnosis using clinical patterns, ultrasound, and CT scans.

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Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation
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Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation

Published on: December 15, 2017

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Multimodality Diagnosis of Mesenteric Ischemia
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Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation
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Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation

Published on: December 15, 2017

Area of Science:

  • Gastroenterology
  • Abdominal Imaging
  • Internal Medicine

Background:

  • Ischemic colitis is the most common form of gastrointestinal ischemia, affecting 1-3 per 1000 hospital admissions.
  • It predominantly impacts elderly individuals, presenting with symptoms like rectal bleeding, abdominal pain, and diarrhea.
  • Often underdiagnosed, understanding its epidemiology and pathology is crucial.

Purpose of the Study:

  • To provide a comprehensive overview of ischemic colitis.
  • To review its epidemiology, physiology, and pathology.
  • To discuss diagnostic approaches including clinical presentation, ultrasound (US), and computed tomography (CT).

Main Methods:

  • Literature review focusing on epidemiology, pathophysiology, clinical presentation, and diagnostic imaging of ischemic colitis.
  • Analysis of diagnostic value and limitations of US and CT in various stages of the disease.
  • Discussion of differential diagnoses for ischemic colitis.

Main Results:

  • Ischemic colitis is characterized by colonic wall thickening, a key diagnostic indicator.
  • Ultrasound and CT imaging reveal specific findings that aid in diagnosis.
  • The article highlights potential pitfalls and differential diagnoses in imaging.

Conclusions:

  • Ischemic colitis is a significant cause of acute abdominal symptoms in the elderly.
  • Clinical presentation combined with imaging modalities like US and CT are essential for diagnosis.
  • Accurate diagnosis requires awareness of imaging findings and potential diagnostic challenges.