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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...
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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
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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.
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What makes a coronary CT angiogram nondiagnostic?

James K Min1, Fay Y Lin

  • 1Department of Medicine and Radiology, Weill Medical College of Cornell University, The New York Presbyterian Hospital, New York, NY, USA. jkm2001@med.cornell.edu

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Multidetector coronary computed tomographic angiography (CCTA) offers high accuracy for coronary artery stenosis. However, CT scanner limitations can cause artifacts, hindering diagnosis. This review addresses common artifacts and their solutions.

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Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Medical Technology

Background:

  • Multidetector coronary computed tomographic angiography (CCTA) is a key tool for diagnosing coronary artery stenosis.
  • Despite high accuracy, technological limitations in CT scanners can lead to artifacts.
  • These artifacts may impede image interpretation and misclassify coronary lesions.

Purpose of the Study:

  • To review common artifacts encountered in CCTA.
  • To discuss strategies for identifying and resolving these artifacts.
  • To improve the diagnostic quality of CCTA examinations.

Main Methods:

  • Review of current literature on CCTA artifacts.
  • Categorization of artifacts based on technical aspects of CT imaging.
  • Discussion of artifact mitigation techniques.

Main Results:

  • Common artifacts stem from limitations in spatial resolution, temporal resolution, and contrast enhancement.
  • Patient-specific factors also contribute to image quality issues.
  • Identification and understanding of these artifacts are crucial for accurate CCTA interpretation.

Conclusions:

  • Addressing CCTA artifacts is essential for maximizing diagnostic accuracy.
  • Knowledge of artifact sources aids in optimizing image acquisition and interpretation.
  • Improved CCTA image quality leads to better patient management for coronary artery disease.