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Related Concept Videos

Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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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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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Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

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Related Experiment Video

Updated: Jul 3, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
06:29

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques

Published on: June 11, 2019

Optimizing cardiac MR imaging: practical remedies for artifacts.

Farhood Saremi1, John D Grizzard, Raymond J Kim

  • 1Department of Radiological Sciences, Division of Cardiothoracic Imaging, University of California Irvine, UCI Medical Center, 101 City Dr S, Route 140, Orange, CA 92868, USA. fsaremi@uci.edu

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|July 19, 2008
PubMed
Summary
This summary is machine-generated.

Cardiac magnetic resonance (MR) imaging artifacts are common despite technical advances. Understanding their causes and appearance is crucial for accurate cardiac MR evaluations and avoiding misdiagnosis.

Related Experiment Videos

Last Updated: Jul 3, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
06:29

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques

Published on: June 11, 2019

Area of Science:

  • Cardiovascular Imaging
  • Medical Physics
  • Radiology

Background:

  • Clinical demand for cardiac magnetic resonance (MR) imaging is rising due to technical advancements.
  • Cardiac MR techniques have evolved significantly, enabling comprehensive assessments.
  • Despite advancements, artifacts remain a challenge in cardiac MR imaging.

Purpose of the Study:

  • To highlight the common artifacts encountered in cardiac MR imaging.
  • To explain the origins, appearance, and significance of these artifacts.
  • To emphasize the importance of artifact recognition for accurate diagnosis.

Main Methods:

  • Review of current cardiac MR imaging techniques, including spin-echo, gradient-echo, and balanced steady-state free precession.
  • Discussion of artifact sources, encompassing patient/equipment positioning, external interference, and sequence-specific issues.
  • Focus on accelerated imaging techniques like parallel imaging and their susceptibility to artifacts.

Main Results:

  • Artifacts can arise from patient/equipment setup, electromagnetic interference, or metallic objects.
  • Specific MR sequences and advanced techniques like parallel imaging are prone to distinct artifacts.
  • Misinterpretation of artifacts as pathologies can occur if not properly identified.

Conclusions:

  • Knowledge of cardiac MR artifact origins and appearance is essential for accurate clinical interpretation.
  • Recognizing and addressing artifacts prevents misdiagnosis of cardiac lesions.
  • Adjustments during acquisition or repeating the scan may be necessary to mitigate severe artifacts.