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Related Concept Videos

Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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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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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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Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

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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.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
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Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

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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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Imaging Studies VII: Vascular Imaging01:19

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

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Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
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Related Experiment Video

Updated: Nov 23, 2025

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
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Multimodality Imaging of Myocardial Viability.

Kinjan Parikh1, Alana Choy-Shan1,2, Munir Ghesani3

  • 1Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, NY, 10016, USA.

Current Cardiology Reports
|January 5, 2021
PubMed
Summary

Assessing myocardial viability using imaging techniques can predict functional recovery after revascularization. However, current data does not confirm improved clinical outcomes, suggesting targeted application in select patients.

Keywords:
CMRDobutamine echocardiographyHibernating myocardiumPETSPECTViability

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Pathophysiology

Background:

  • Myocardial viability assessment is crucial for patients with ischemic heart disease and left ventricular dysfunction.
  • Understanding imaging modalities and their clinical implications guides decision-making.

Purpose of the Study:

  • To review imaging modalities for assessing myocardial viability.
  • To discuss the clinical implications of viability assessment in ischemic heart disease.

Main Methods:

  • Review of established imaging techniques: dobutamine echocardiography, SPECT, PET, and cardiac MRI.
  • Analysis of data on predicting functional recovery post-revascularization.

Main Results:

  • Multiple imaging modalities reliably identify viable myocardium and predict functional recovery.
  • Recent data questions whether this recovery translates to improved clinical outcomes.
  • Broad application is limited by lack of outcome data.

Conclusions:

  • Viability assessment aids pre-revascularization decisions but requires outcome data for broad use.
  • Consider viability assessment for select patients, integrating multiple data types.
  • Future research must focus on the impact of viability on clinical outcomes.