Diagnostic Inputs

1. Patient Baseline & Primary Doppler

Body Weight (kg)

TR Peak Vel (m/s)

PR Peak Vel (m/s)

2. Ventricles (ACVIM Site 1)

RV Basal Diam (RVD1)

LV Diastole (LVIDd)

RV Free Wall (RVWT)

LV Free Wall (LVPWd)

RV Diastolic Area (RVEDA)

TAPSE

3. Pulmonary Artery (ACVIM Site 2)

MPA min (mm)

RPA min (mm)

PA:Ao Ratio

RPA max (mm)

4. Atria & Filling Pressures (Site 3 / ePLAR)

Right Atrium (RAD)

Left Atrium (LAD)

MV E Vel (m/s)

MV e' Vel (m/s)

5. Subjective Findings

Visual IVS Flattening

RVOT Flow Profile

Mid-Systolic Notching Present

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ACVIM Probability

Enter TR velocity or anatomic site metrics to calculate probability.

Low

Normal TR

Intermediate

Borderline TR or ≥2 Sites

High

Severe TR

Anatomic Sites Positive: / 3

ePLAR Differentiation

(ePLAR)

Pre-Capillary Post-Capillary Backup Borderline

Literature Reference

Chang PH Predictive Score Chang et al.(2026) Development and evaluation of a composite echocardiographic score for predicting pulmonary hypertension severity in dogs.

ACVIM Consensus Guidelines Reinero et al. (2020) ACVIM consensus statement guidelines for the diagnosis, classification, treatment, and monitoring of pulmonary hypertension in dogs.

Pulmonary artery dimensions Grosso et al. (2023) Echocardiographic reference intervals of the dimensions of the main pulmonary artery and the right pulmonary artery: a prospective study in 269 healthy dogs.

Right Heart Indicies for PHT Feldhütter et al. (2022) Right ventricular size and function evaluated by various echocardiographic indices in dogs with pulmonary hypertension.

Right Heart Indicies Feldhütter et al. (2021) Echocardiographic reference intervals for right ventricular indices, including 3‐dimensional volume and 2‐dimensional strain measurements in healthy dogs.

Right Heart Indicies Sankisov et al. (2024) Two-dimensional echocardiographic right heart ratios for assessment of right heart size in dogs: Reference intervals and reproducibility.

Right Heart Indicies Gentile-Solomon and Abbott (2016) Conventional echocardiographic assessment of the canine right heart: reference intervals and repeatability.