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Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
Published on: August 9, 2024
ACR appropriateness criteria asymptomatic patient at risk for coronary artery disease
James P Earls1, Pamela K Woodard2, Suhny Abbara3
1Fairfax Radiological Consultants, Fairfax, Virginia.
Insights
Identifying individuals at high risk for cardiovascular events is crucial. Diagnostic imaging, like coronary artery calcium scoring, helps detect subclinical atherosclerosis for targeted prevention in asymptomatic patients.
Area of Science:
- Cardiology
- Radiology
- Preventive Medicine
Background:
- Atherosclerotic cardiovascular disease is a leading cause of death.
- Coronary artery disease often has a long asymptomatic phase.
- Early intervention can significantly reduce mortality and morbidity.
Purpose of the Study:
- To discuss the use of diagnostic imaging in asymptomatic patients at elevated risk for cardiovascular events.
- To refine targeted preventive strategies based on individual risk assessment.
- To highlight the role of imaging in detecting subclinical coronary atherosclerosis.
Main Methods:
- Review of available diagnostic imaging modalities including radiography, fluoroscopy, multidetector CT, ultrasound, MRI, cardiac perfusion scintigraphy, echocardiography, and PET.
- Application of the ACR Appropriateness Criteria, which are evidence-based guidelines developed through expert consensus (modified Delphi methodology).
- Analysis of current medical literature from peer-reviewed journals to inform guideline recommendations.
Main Results:
- Coronary artery calcium score correlates with overall atherosclerotic burden and provides prognostic information.
- Various imaging modalities can detect subclinical coronary atherosclerosis in asymptomatic individuals.
- ACR Appropriateness Criteria guide the selection of appropriate imaging procedures.
Conclusions:
- Diagnostic imaging plays a vital role in identifying asymptomatic individuals at elevated risk for cardiovascular events.
- Risk stratification through imaging enables more precise and targeted preventive interventions.
- Evidence-based guidelines, like the ACR Appropriateness Criteria, support the appropriate use of imaging in cardiovascular risk assessment.
Abstract:
Atherosclerotic cardiovascular disease is the leading cause of death for both men and women in the United States. Coronary artery disease has a long asymptomatic latent period and early targeted preventive measures can reduce mortality and morbidity. It is important to accurately classify individuals at elevated risk in order to identify those who might benefit from early intervention. Imaging advances have made it possible to detect subclinical coronary atherosclerosis. Coronary artery calcium score correlates closely with overall atherosclerotic burden and provides useful prognostic information for patient management. Our purpose is to discuss use of diagnostic imaging in asymptomatic patients at elevated risk for future cardiovascular events. The goal for these patients is to further refine targeted preventative efforts based on risk. The following imaging modalities are available for evaluating asymptomatic patients at elevated risk: radiography, fluoroscopy, multidetector CT, ultrasound, MRI, cardiac perfusion scintigraphy, echocardiography, and PET. The ACR Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed every 2 years by a multidisciplinary expert panel. The guideline development and review include an extensive analysis of current medical literature from peer-reviewed journals and the application of a well-established consensus methodology (modified Delphi) to rate the appropriateness of imaging and treatment procedures by the panel. In those instances where evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment.
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