Calculators

Echo calculator and M-mode reference range tool for canine echocardiography.

These free tools are designed for use in everyday clinical practice. The EPIC criteria calculator helps you assess pimobendan indication in preclinical MMVD dogs based on the landmark EPIC trial thresholds. The breed-specific reference range tool pulls published echo norms for over 40 breeds. The M-mode allometric scale uses the Cornell formula for body-weight-adjusted LV measurements. All three are free to use with no login required.

Degenerative Mitral Valve Disease (MVD) Preclinical Assessment Calculator

Enter patient details to assess whether pimobendan is indicated for your asymptomatic Mitral Valve Disease cases.
Based on EPIC study criteria.

EPIC Criteria:

Systolic murmur ≥3/6
Weight ≤15 kg
Age >6 years
LA:Ao >1.6
LVIDdN >1.7

Breed‑Specific Echo Reference Ranges for Dogs

Select a breed to instantly view its published echo reference ranges.

Compiled from peer-reviewed veterinary cardiology papers.

M-Mode normal reference range

Input your patient's body weight in the box to display the reference range for M-mode measurements (according to the Cornell allometric scale for patients weighing less than 70kg).

Want to put these measurements into practice with confidence? Our Echocardiography CPD course is delivered in your clinic, on your machine — covering EPIC staging, cardiac views, and Doppler assessment from the ground up. Find out more or take our quiz to find the right level for you.

Note: Reference values are a helpful guide, but they should not be used in isolation. Always interpret measurements alongside the patient’s body size, clinical presentation and other echocardiographic indices.

Final assessment must be based on the whole clinical picture rather than a single parameter