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Related Experiment Videos

Complex flow patterns in the great vessels: a review.

H G Bogren1, M H Buonocore

  • 1Department of Radiology, UC Davis Medical Center, Sacramento, USA.

International Journal of Cardiac Imaging
|August 24, 1999
PubMed
Summary
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Magnetic resonance velocity mapping quantifies blood flow using phase shifts. This technique assesses normal flow, valve function, and various cardiovascular conditions in major arteries.

Area of Science:

  • Cardiovascular Imaging
  • Medical Physics
  • Hemodynamics

Background:

  • Blood flow quantification is crucial for diagnosing and managing cardiovascular diseases.
  • Phase-contrast magnetic resonance imaging (PC-MRI) is a non-invasive technique for assessing blood flow.
  • Proton phase shifts in MRI provide a basis for velocity mapping.

Purpose of the Study:

  • To review the applications of magnetic resonance velocity mapping for quantifying blood flow.
  • To highlight its utility in assessing normal physiology and pathological conditions.
  • To discuss advancements in two- and three-directional velocity mapping.

Main Methods:

  • Utilizes phase shifts in protons to measure blood flow velocity and volume.
  • Employs magnetic resonance imaging (MRI) techniques.

Related Experiment Videos

  • Includes two- and three-directional velocity mapping for detailed flow analysis.

    • Main Results:

    • Accurate quantification of blood flow velocity and volume in various vessels.
    • Assessment of normal aortic and pulmonary artery flow, including forward and backward components.
    • Evaluation of aortic and pulmonary valve function in conditions like stenosis and regurgitation.
    • Measurement of flow in superior vena cava, pulmonary veins, shunts, and conduits.

    Conclusions:

    • Magnetic resonance velocity mapping is a versatile tool for cardiovascular assessment.
    • It enables detailed study of normal and abnormal blood flow dynamics.
    • Advanced techniques allow for comprehensive three- and four-dimensional flow analysis.