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Noninvasive Multimodality Imaging for the Assessment of Anomalous Coronary Artery
Christoph Gräni1, Marius R Bigler1, Raymond Y Kwong2
1Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Insights
Anomalous aortic origin of a coronary artery (AAOCA) can cause heart problems. Comprehensive noninvasive imaging helps assess risks and guide treatment for AAOCA patients.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Medical Imaging
Background:
- Anomalous aortic origin of a coronary artery (AAOCA) is a rare congenital anomaly.
- AAOCA can lead to myocardial ischemia and adverse cardiac events.
- Revascularization is not always necessary for AAOCA.
Purpose of the Study:
- To review how noninvasive anatomic and physiologic evaluation guides AAOCA patient management.
- To assess the role of multimodality imaging in characterizing AAOCA.
- To focus on the pathophysiology of myocardial ischemia and stress testing in AAOCA.
Main Methods:
- Review of noninvasive multimodality cardiac imaging techniques.
- Assessment of anatomical high-risk features of AAOCA.
- Evaluation of hemodynamic and stress testing protocols.
Main Results:
- Noninvasive imaging provides detailed anatomic and functional assessment of AAOCA.
- Imaging identifies high-risk features like slit-like ostium, intramural course, and acute take-off.
- Strengths and limitations of various imaging modalities for AAOCA are highlighted.
Conclusions:
- Comprehensive noninvasive evaluation is crucial for managing AAOCA.
- Accurate anatomic and physiologic assessment guides decisions on revascularization.
- Multimodality imaging plays a key role in understanding AAOCA pathophysiology and patient outcomes.
Purpose Of Review:
Anomalous aortic origin of a coronary artery (AAOCA) is a rare congenital coronary anomaly with the potential to cause myocardial ischemia and adverse cardiac events. The presence of AAOCA anatomy itself does not necessarily implicate a need for revascularization. Therefore, the purpose of this review is to assess how noninvasive comprehensive anatomic- and physiologic evaluation may guide patient management.
Recent Findings:
The assessment of AAOCA includes an accurate description of the anomalous origin/vessel course including anatomical high-risk features such as a slit-like ostium, proximal narrowing, elliptic vessel shape, acute take-off angle, intramural course, and possible concomitant coronary atherosclerosis and hemodynamics. Various cardiac imaging modalities offer unique advantages and capabilities in visualizing these anatomical and functional aspects of AAOCA. This review explored the role of noninvasive multimodality imaging in the characterization of AAOCA by highlighting the strengths, limitations, and potential applications of the current different cardiac imaging methods, with a focus on the pathophysiology of myocardial ischemia and stress testing protocols.
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