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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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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

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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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An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
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IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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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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Transient aortic collapse captured on multiphase CT during involuntary retching.

Catherine C Bullock1, Justin T Stowell2

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The International Journal of Cardiovascular Imaging
|May 26, 2025
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Summary
This summary is machine-generated.

Transient aortic collapse during CT scans can mimic aortic stenosis. Reviewing multiphase CT images and communicating with technologists helps prevent misdiagnosis of this rare imaging finding.

Keywords:
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Area of Science:

  • Radiology
  • Cardiovascular Imaging
  • Medical Diagnostics

Background:

  • Multiphase computed tomography (CT) scans are crucial for cardiovascular assessment.
  • Transient aortic collapse is a rare phenomenon that can occur during CT imaging.
  • Accurate interpretation of aortic pathology is essential for patient management.

Purpose of the Study:

  • To describe a case of transient aortic collapse during a multiphase CT scan.
  • To emphasize the potential for misinterpreting this phenomenon as aortic stenosis.
  • To provide guidance on avoiding false positive diagnoses.

Main Methods:

  • A case report detailing a patient undergoing a multiphase CT scan.
  • Observation of transient aortic collapse during the venous phase of the scan.
  • Analysis of CT images to differentiate from true aortic stenosis.

Main Results:

  • Transient aortic collapse was visualized during the venous phase of a multiphase CT scan.
  • This collapse mimicked the appearance of aortic stenosis on imaging.
  • The phenomenon resolved upon review of all scan phases.

Conclusions:

  • Transient aortic collapse is a rare but important imaging finding.
  • Awareness of this phenomenon is critical to prevent misdiagnosis of aortic stenosis.
  • Multiphase CT review and technologist communication aid in accurate diagnosis.