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Related Concept Videos

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...
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, evaluates...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

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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Related Experiment Video

Updated: May 10, 2026

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
08:13

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Published on: February 16, 2016

Myocardium: dynamic versus single-shot CT perfusion imaging.

Armin M Huber1, Vivian Leber, Bettina M Gramer

  • 1Institute for Diagnostic and Interventional Radiology, Klinikum rechts der Isar der Technischen, Universität München, Ismaninger Str. 22, 81675 Munich, Germany; Clinic for Cardiology and Internal Intensive Care Medicine, Klinikum Bogenhausen, Munich, Germany.

Radiology
|June 22, 2013
PubMed
Summary

Dynamic CT perfusion imaging accurately detects coronary artery stenosis. Semiquantitative (upslope, peak enhancement) and quantitative (myocardial blood flow) parameters show high diagnostic accuracy for coronary artery stenosis.

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Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Medical Diagnostics

Background:

  • Coronary artery stenosis detection is crucial for cardiovascular health.
  • Traditional methods like coronary angiography have limitations.
  • Dynamic CT perfusion imaging offers a non-invasive alternative for assessing myocardial blood flow.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of dynamic CT perfusion imaging for detecting hemodynamically significant coronary artery stenosis.
  • To compare the accuracy of CT perfusion parameters with coronary angiography and fractional flow reserve (FFR).

Main Methods:

  • Thirty-two patients underwent dynamic CT perfusion imaging under adenosine stress.
  • Key parameters analyzed: time to peak, area under the curve, upslope, peak enhancement, and myocardial blood flow (MBF).
  • Results were compared to coronary angiography and FFR using ROC analysis.

Main Results:

  • Upslope (AUC 0.87), peak enhancement (AUC 0.83), and MBF (AUC 0.86) demonstrated high diagnostic accuracy.
  • MBF achieved 100% specificity in detecting stenosis.
  • Threshold values for optimal detection were established for each parameter.

Conclusions:

  • Dynamic CT perfusion imaging, particularly upslope, peak enhancement, and quantitative MBF, is highly accurate for diagnosing coronary artery stenosis.
  • These CT perfusion parameters offer a reliable, non-invasive method for assessing coronary artery disease severity.