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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...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...

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Related Experiment Video

Updated: May 23, 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

Time-resolved CT angiography in aortic dissection.

Felix G Meinel1, Konstantin Nikolaou, Rolf Weidenhagen

  • 1Department of Clinical Radiology, Ludwig Maximilians-University, Marchioninistr. 15, 81377 Munich, Germany. felix.meinel@med.uni-muenchen.de

European Journal of Radiology
|March 31, 2012
PubMed
Summary
This summary is machine-generated.

Time-resolved CT angiography of the entire aorta is feasible for diagnosing aortic dissection. This multiphasic technique provides significant additional diagnostic information, impacting patient management and therapeutic decisions.

More Related Videos

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

Related Experiment Videos

Last Updated: May 23, 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

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

Area of Science:

  • Radiology and Imaging Science
  • Cardiovascular Imaging
  • Diagnostic Imaging Technologies

Background:

  • Aortic dissection is a life-threatening condition requiring accurate and timely diagnosis.
  • Standard CT angiography protocols may not capture the dynamic nature of aortic dissection.
  • Assessing the feasibility and diagnostic utility of advanced CT techniques is crucial.

Purpose of the Study:

  • To evaluate the feasibility of time-resolved CT angiography for the entire aorta in patients with aortic dissection.
  • To determine the additional diagnostic value of this multiphasic approach compared to standard protocols.
  • To assess the impact of findings on patient management and therapeutic decisions.

Main Methods:

  • 14 patients with suspected or confirmed aortic dissection underwent time-resolved CT angiography on a dual-source CT scanner.
  • Multiphasic image acquisition was performed using shuttle mode, capturing 6 phases.
  • Data were compared against a simulated triphasic standard CT protocol.

Main Results:

  • Time-resolved CT angiography provided additional diagnostic information, including enhancement delay between lumens, membrane oscillation, and perfusion delays in arteries from the false lumen.
  • Other findings included true lumen collapse, renal perfusion asymmetry, and dynamic occlusion of aortic branches.
  • In 21% of patients, these additional findings altered patient management.

Conclusions:

  • Multiphasic, time-resolved CT angiography of the entire aorta is feasible in patients with aortic dissection.
  • This technique offers significant diagnostic information beyond standard protocols.
  • The additional insights gained have therapeutic consequences, improving patient care.