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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
How much calcium is too much calcium for coronary computerized tomographic angiography?
Harvey S Hecht1, Tandeep Bhatti
1Lenox Hill Heart and Vascular Institute, NY 10021 USA. hhecht@aol.com
Journal of Cardiovascular Computed Tomography
|December 17, 2008
Summary
Coronary artery calcium (CAC) scoring impacts coronary computerized tomographic angiography (CTA) interpretation. High CAC scores do not universally prohibit accurate CTA, emphasizing individualized assessment and artifact recognition.
Area of Science:
- Cardiovascular Imaging
- Radiology
- Medical Diagnostics
Background:
- Coronary artery calcium (CAC) scoring is a key tool in cardiovascular risk assessment.
- Increasing CAC scores present challenges for accurate interpretation of coronary computerized tomographic angiography (CTA).
- Current guidelines suggest limitations for CTA performance with high CAC scores.
Purpose of the Study:
- To evaluate the impact of high coronary artery calcium scores on coronary computerized tomographic angiography.
- To determine if there are absolute upper limits for CAC scores in CTA interpretation.
- To provide a reasoned approach for managing high CAC scores in CTA examinations.
Main Methods:
- Review of current literature and clinical recommendations regarding CAC scoring and CTA.
- Analysis of factors influencing CTA interpretation in the presence of high CAC.
- Discussion of imaging artifacts associated with high CAC.
Main Results:
- The threshold CAC score above which CTA is not recommended is increasing.
- There is no universally applicable absolute upper limit for CAC scores prohibiting CTA interpretation.
- Anticipating calcium burden and understanding artifacts are crucial for accurate CTA.
Conclusions:
- High CAC scores do not inherently preclude accurate CTA interpretation.
- A tailored approach considering individual patient factors and imaging center capabilities is necessary.
- Understanding potential artifacts enables successful CTA even with significant coronary calcification.
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