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Updated: Jan 20, 2026

Isolation of Mouse Interstitial Valve Cells to Study the Calcification of the Aortic Valve In Vitro
Published on: May 10, 2021
Why and How to Measure Aortic Valve Calcification in Patients With Aortic Stenosis
Tania Pawade1, Tej Sheth2, Ezequiel Guzzetti3
1British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom.
Insights
Aortic valve calcium scoring using CT-AVC offers a reliable, load-independent method for assessing aortic stenosis severity when echocardiography is inconclusive. This technique aids in clinical decision-making for patients with discordant results.
Area of Science:
- Cardiovascular Imaging
- Medical Diagnostics
- Radiology
Background:
- Doppler echocardiography is the standard for assessing aortic stenosis severity.
- Discordant results occur in up to 40% of patients, causing clinical uncertainty.
- Aortic valve calcification is central to the pathophysiology of aortic stenosis.
Purpose of the Study:
- To review the role of CT-AVC in assessing aortic stenosis severity.
- To validate CT-AVC against histology and echocardiography.
- To provide a practical guide for CT-AVC acquisition and interpretation.
Main Methods:
- Review of published literature on CT-AVC.
- Validation of CT-AVC against histological data.
- Comparison of CT-AVC diagnostic accuracy with echocardiography.
- Assessment of CT-AVC prognostic capability.
Main Results:
- CT-AVC is a validated, load-independent measure of aortic stenosis severity.
- Published reports confirm CT-AVC's diagnostic accuracy and prognostic power.
- Histological validation supports CT-AVC's reliability.
Conclusions:
- CT-AVC is a valuable tool for evaluating aortic stenosis severity, especially in cases of echocardiographic discordance.
- Understanding CT-AVC acquisition and interpretation is crucial for clinical adoption.
- CT-AVC offers independent prognostic information in aortic stenosis.
Abstract:
The first-line evaluation of aortic stenosis severity is Doppler echocardiography. However, in up to 40% of patients, resting echocardiographic assessment of aortic stenosis severity is discordant, leading to clinical uncertainty. Interest has therefore grown in aortic valve calcium scoring by multidetector computed tomography (CT-AVC) as an alternative load independent assessment of aortic stenosis severity. This paper will briefly review the pathophysiology of aortic stenosis and the crucial role that calcification plays in driving progressive obstruction of the valve. Subsequently, it will describe published reports that have investigated CT-AVC, validating this parameter against histology, and establishing its diagnostic accuracy versus echocardiography as well as its powerful independent prognostic capability. Finally, this review seeks to provide a practical guide about how best to acquire and interpret CT-AVC with a close focus on potential pitfalls and how these might be best avoided as this technique becomes more widely adopted in to clinical practice.
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