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Free Tool ASE / EACVI · 2026

2D Echocardiography Calculator

Comprehensive 2D calculator for LV dimensions, wall thicknesses, ejection fraction, atrial volumes, and aortic Z-scores (Devereux & Campens).

Enter measurements

Each measurement is graded against its own reference range as you enter it.

Measurements

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Governing Guideline

ASE / EACVI

Mitchell C, et al. Guidelines for Performing a Comprehensive Transthoracic Echocardiographic Examination in Adults. J Am Soc Echocardiogr 2019;32:1-64. Lang RM, et al. Recommendations for Cardiac Chamber Quantification by Echocardiography in Adults. J Am Soc Echocardiogr 2015;28:1-39. Devereux RB, et al. Normal limits in relation to age, body size and gender of two-dimensional echocardiographic aortic root dimensions in persons ≥15 years old. Am J Cardiol 2012;110:1189-94. Campens L, et al. Reference values for echocardiographic assessment of the diameter of the normal aortic root and ascending aorta in a Caucasian population. Eur Heart J Cardiovasc Imaging 2014;15:1014-22.

DOI Link ↗

Reference Thresholds

  • LV Wall Thickness (Male) ≤ 10 mm (Normal)
  • LV Wall Thickness (Female) ≤ 9 mm (Normal)
  • LVEDD (Male) ≤ 58 mm (Normal)
  • LVEDD (Female) ≤ 52 mm (Normal)
  • LVEF (Male) ≥ 52% (Normal)
  • LVEF (Female) ≥ 54% (Normal)
  • LA Volume Index (LAVI) ≤ 34 mL/m² (Normal)
  • ST Junction (STJ) < 4.0 cm (Normal)
  • Aortic Z-Score (Campens) Z < 2.0 (Normal)

Enter measurements

Each measurement is graded against its own reference range as you enter it.

Clinical Context & Methodology

Clinical Background & Evidence (EchoMastery Pro)

Standardized 2D transthoracic echocardiography establishes foundational chamber dimensions, geometric remodeling classification, and aortic root dimensions in alignment with ASE and EACVI guidelines.

1. Left Ventricular Wall Thickness (LVWT)

Measured at end-diastole perpendicular to the LV long axis from parasternal views:

  • Men: Normal ≤ 10 mm; mild hypertrophy 11–13 mm; moderate 14–16 mm; severe > 16 mm.
  • Women: Normal ≤ 9 mm; mild hypertrophy 10–12 mm; moderate 13–15 mm; severe > 15 mm.

2. LV Internal Dimension at End-Diastole (LVEDD)

  • Men: Normal ≤ 58 mm; mild dilatation 59–63 mm; moderate 64–68 mm; severe > 68 mm.
  • Women: Normal ≤ 52 mm; mild dilatation 53–56 mm; moderate 57–61 mm; severe > 61 mm.

3. LVEF (Simpson Biplane)

Biplane method of discs in apical 4- and 2-chamber views: LVEF =EDV − ESVEDV× 100 %.

  • Men: Normal ≥ 52%; mildly reduced 41–51%; moderately reduced 30–40%; severely reduced < 30%.
  • Women: Normal ≥ 54%; mildly reduced 41–53%; moderately reduced 30–40%; severely reduced < 30%.

4. Left Atrial Volume Index (LAVI)

Indexed to body surface area (BSA): Normal ≤ 34 mL/m²; mild dilatation 35–41 mL/m²; moderate 42–48 mL/m²; severe > 48 mL/m².

5. Aortic Root & Ascending Aorta (Z-Scores & Surveillance Criteria)

Measured at end-diastole using leading-edge to leading-edge convention. Evaluated via Campens (2014) and Devereux (2012) algorithms:

  • Z < 2.0: Normal.
  • Z 2.0–3.0: Mild dilatation.
  • Z 3.0–4.0: Moderate dilatation.
  • Z ≥ 4.0 or segment diameter ≥ 4.0 cm: Significant aortic dilatation — automatically triggers guideline surveillance guidance for surgical consultation and monitoring intervals.
Dr. med. Christian Kirsch

Dr. med. Christian Kirsch

DEGUM II Ausbilder, Klinikum Lippstadt · Derived from official society guidelines