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Related Concept Videos

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...
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: 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 I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
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

Updated: Jun 28, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

DynaCT during EVAR--a comparison with multidetector CT.

K R Eide1, A Ødegård, H O Myhre

  • 1Department of Food Science and Medical Technology, Sør-Trøndelag University College, Norway.

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
|November 18, 2008
PubMed
Summary
This summary is machine-generated.

On-table DynaCT imaging provides sufficient quality for arterial measurements in endovascular aortic repair (EVAR). While multidetector CT (MDCT) showed higher visibility, DynaCT offers valuable diagnostic information for infrarenal abdominal aortic aneurysms.

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Contrast Enhanced Vessel Imaging using MicroCT
05:50

Contrast Enhanced Vessel Imaging using MicroCT

Published on: January 27, 2011

Related Experiment Videos

Last Updated: Jun 28, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

Contrast Enhanced Vessel Imaging using MicroCT
05:50

Contrast Enhanced Vessel Imaging using MicroCT

Published on: January 27, 2011

Area of Science:

  • Radiology
  • Vascular Surgery
  • Medical Imaging

Background:

  • Endovascular aortic repair (EVAR) requires accurate pre-operative imaging.
  • On-table cross-sectional radiological imaging, such as DynaCT, is an emerging technique.
  • Comparison with standard multidetector CT (MDCT) is necessary to evaluate its utility.

Purpose of the Study:

  • To assess the usefulness of on-table DynaCT in endovascular aortic repair (EVAR).
  • To compare DynaCT images with MDCT for clinical measurements and anatomical visibility.
  • To evaluate diagnostic quality and accuracy of DynaCT for infrarenal abdominal aortic aneurysms (AAA).

Main Methods:

  • Prospective study of 20 patients with infrarenal AAA undergoing EVAR.
  • Comparison of DynaCT (two contrast doses) with MDCT (16 slice).
  • Evaluation of 5 arterial measurements and visibility of 9 anatomical areas using a 4-point scale.

Main Results:

  • No significant differences in measured arterial diameters and lengths between DynaCT and MDCT.
  • MDCT demonstrated significantly higher visibility scores than DynaCT.
  • Acceptable diagnostic quality for 8 of 9 anatomical areas was achieved with the highest DynaCT contrast dose (78-94% of cases).

Conclusions:

  • On-table DynaCT provides sufficient quality for essential arterial measurements in EVAR.
  • DynaCT offers valuable diagnostic information for infrarenal AAA repair.
  • Further optimization may enhance anatomical visibility in DynaCT imaging.