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Related Concept Videos

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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Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
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Imaging Studies for Cardiovascular System I:Echocardiography01:17

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Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
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Related Experiment Video

Updated: Jun 12, 2025

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice
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Multi-modality imaging to assess rheumatic mitral stenosis severity.

Nidhal Bouchahda1, Mezri Maatouk2, Ghada Sassi3

  • 1Cardiology A Department, Research Laboratory LR12 SP 16 Fattouma Bourguiba University Hospital, University of Monastir, Rue du 1er juin 1955, Monastir, 5000, Tunisia. nidhalbouchahda@gmail.com.

The International Journal of Cardiovascular Imaging
|September 24, 2024
PubMed
Summary

Cardiac MRI overestimates mitral valve area in rheumatic mitral stenosis compared to 3D echocardiography. Mitral valve calcium scoring via CT does not correlate with disease severity.

Keywords:
3D echocardiographyCardiac MRIComputed tomographyMitral stenosis

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Area of Science:

  • Cardiology
  • Medical Imaging

Background:

  • Multi-modality imaging is standard for valvular heart disease assessment.
  • Rheumatic mitral stenosis (MS) severity assessment has not fully benefited from multi-modality imaging.

Purpose of the Study:

  • To evaluate the added value of cardiac MRI (CMR) and CT calcium score in assessing MS severity.
  • To compare CMR and CT findings against 3D echocardiography in MS patients.

Main Methods:

  • 41 patients with MS in sinus rhythm underwent CMR and 3D echocardiography.
  • Mitral valve area (MVA) was measured by radiologists and cardiologists.
  • CT of the mitral valve was performed for calcium scoring using the Agatston method.

Main Results:

  • CMR significantly overestimated MVA compared to 3D echo (p < 0.001).
  • Overestimation by CMR increased with MS severity.
  • CT showed undetectable calcium in 61% of patients, with no significant difference in calcium scores between severe and non-severe MS.

Conclusions:

  • CMR overestimates MVA in MS when compared to 3D echocardiography.
  • Mitral valve calcium scoring by CT is not a reliable indicator of MS severity.