TAVR Vascular Access Sizing by Annulus Calculator

Size TAVR prosthesis from CT aortic annulus area and perimeter. Annulus area-derived diameter guides valve selection and sizing.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Size TAVR prosthesis from CT aortic annulus area and perimeter. Annulus area-derived diameter guides valve selection and sizing

Each component has a specific meaning:

  • CT aortic annulus area — The ct aortic annulus area recorded for the scenario being assessed.
  • Perimeter — The perimeter recorded for the scenario being assessed.

Note: Interpret the tavr annulus size result against the thresholds and context described above.

How to Use

Enter the CT aortic annulus area, perimeter for the scenario you are assessing. Size TAVR prosthesis from CT aortic annulus area and perimeter. Annulus area-derived diameter guides valve selection and sizing. Use the tavr annulus size result to inform your calculation.

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Frequently Asked Questions