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Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images

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Multislice computed tomography in an asymptomatic high-risk population.

Francesco Romeo¹, Roberto Leo, Fabrizio Clementi

¹Department of Cardiology, University of Rome Tor Vergata, Rome, Italy.

The American Journal of Cardiology

|January 31, 2007

Summary

Multislice computed tomography angiography (MSCT) effectively detects coronary artery disease (CAD) in high-risk asymptomatic individuals. This noninvasive method offers high accuracy for early diagnosis when stress tests are inconclusive.

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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

Area of Science:

Cardiovascular Imaging
Diagnostic Radiology
Preventive Cardiology

Background:

Acute coronary syndromes often arise in asymptomatic individuals, highlighting the need for early detection strategies.
Traditional noninvasive stress testing can be inconclusive or unfeasible in certain high-risk patient groups.

Purpose of the Study:

To evaluate the diagnostic value of multislice computed tomography coronary angiography (MSCT) for identifying significant coronary artery disease (CAD).
To assess MSCT's utility in high-risk asymptomatic subjects with inconclusive or unfeasible noninvasive stress test results.

Main Methods:

Study included 168 asymptomatic subjects with at least one major cardiovascular risk factor and inconclusive/unfeasible stress tests.
All participants underwent clinical examination, laboratory risk analysis, MSCT coronary angiography, and conventional coronary angiography.
MSCT results were compared against conventional coronary angiography for accuracy assessment.

Main Results:

MSCT identified single-vessel CAD in 16%, two-vessel CAD in 7%, and three-vessel CAD in 4% of patients.
Conventional coronary angiography confirmed MSCT findings in 99% of cases.
MSCT demonstrated high diagnostic performance: 100% sensitivity, 98% specificity, 95% positive predictive value, and 100% negative predictive value.

Conclusions:

MSCT coronary angiography is a highly accurate noninvasive tool for early detection of significant CAD.
It is particularly valuable in high-risk asymptomatic patients where conventional stress testing is inadequate.
MSCT facilitates timely intervention and management of coronary artery disease in this population.