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Related Concept Videos

Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

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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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Imaging Studies VII: Vascular Imaging01:19

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

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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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...
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Imaging Studies for Cardiovascular System V: CT01:28

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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...
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Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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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,...
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Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

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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...
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Multi-modality molecular imaging of aortic aneurysms.

Brian J Malm1,2, Mehran M Sadeghi3,4

  • 1Section of Cardiovascular Medicine, Yale University School of Medicine, PO Box 208017, New Haven, CT, 06520, USA. brian.malm@yale.edu.

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
|April 28, 2017
PubMed
Summary

Aortic aneurysms pose significant health risks. Molecular imaging offers a promising approach to better understand aneurysm biology and improve diagnosis and treatment beyond traditional size measurements.

Keywords:
FDGMolecular imagingPETSPECTaneurysmmatrix metalloproteinases

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Area of Science:

  • Cardiovascular Research
  • Medical Imaging
  • Molecular Biology

Background:

  • Aortic aneurysms, particularly thoracic and abdominal aorta, are prevalent and linked to high morbidity/mortality from complications like rupture or dissection.
  • Current diagnostic and risk stratification methods rely on size and growth rate via imaging, which may not accurately identify high-risk patients.
  • Understanding the underlying biological processes of aneurysm formation is crucial for improved patient management.

Purpose of the Study:

  • To review the epidemiology and biology of aortic aneurysms.
  • To highlight the role of molecular imaging in characterizing aortic aneurysms.
  • To explore the potential of molecular imaging in guiding diagnosis and treatment strategies.

Main Methods:

  • Literature review of aortic aneurysm epidemiology and biology.
  • Analysis of current diagnostic and risk stratification modalities.
  • Exploration of molecular imaging techniques for aneurysm characterization.

Main Results:

  • Aneurysm size and growth rate are primary but potentially suboptimal risk indicators.
  • Molecular imaging provides insights into aneurysm pathogenesis beyond anatomical measurements.
  • Targeting biological pathways offers a novel diagnostic and therapeutic avenue.

Conclusions:

  • Molecular imaging presents an opportunity to enhance the understanding and management of aortic aneurysms.
  • Characterizing aneurysms at a molecular level can improve risk stratification and personalize treatment.
  • Future applications of molecular imaging may revolutionize aortic aneurysm care.