How AI Is Changing Veterinary Diagnostics in 2026

In August 2026, North Carolina State University published the largest prospective test of an AI-enabled veterinary stethoscope to date — and the results are both exciting and cautionary. The study, published in the Journal of the American Veterinary Medical Association (Aug 5, 2026; DOI: 10.2460/javma.26.05.0353), tested an AI stethoscope (EKO Core 500) on 105 companion animals — 54 dogs and 51 cats — comparing auscultation at four thoracic sites against a board-certified cardiologist, a cardiology resident, and a fourth-year veterinary student.

Where AI Performs Well: Murmur Detection in Dogs

In dogs, the device achieved 86.8% sensitivity, 56.3% specificity, and 82.5% positive predictive value for detecting heart murmurs — statistically comparable to fourth-year veterinary students (agreement κ = 0.447). High-grade murmurs (grade 3 or above) had significantly greater odds of detection (odds ratio 15.11). For loud, obvious murmurs, the AI is a genuinely useful second set of ears.

Where AI Falls Short: Cats and Arrhythmias

In cats, performance collapsed: only 2 of 22 true murmurs were detected (9.1% sensitivity; κ = 0.081). Lead author Jake Johnson, a cardiology resident at NC State, put it plainly: "This device essentially couldn't find a murmur." Arrhythmia classification was unreliable in both species — 100% sensitivity for atrial fibrillation, but with 22 false positives and no dog ever classified as arrhythmia-free; its AF calls "were wrong three out of four times."

Why It Matters: AI Trained on Human Data vs. Pets

The gap traces back to training data. Many AI auscultation models are built on human heart sounds, which differ in frequency and rhythm from canine and feline hearts. The NC State team's guidance, in the researchers' words: this tool works best "as an adjunct — a quick ECG or a flag worth a second look — not a stand-alone diagnosis."

What's Next: Imaging, Telemedicine, and Wearables

The 2026 landscape includes AI-assisted radiograph interpretation, smartphone-based digital stethoscopes — a 2023 Journal of Veterinary Cardiology study found good accuracy detecting murmurs and gallop rhythm in dogs and cats — and home monitoring ecosystems. Vendors such as Eko (Eko Vet+ with CANINEBEAT AI) market murmur detection with claims of up to 40× sound amplification; treat those as manufacturer claims, not independent findings.

How Pet Owners Should Use This

Ask your clinic what AI tools they use and how results are validated. At home, murmur-aware monitoring pairs naturally with the basics of senior heart care — see our guide on managing heart disease in senior dogs.

FAQ

Is an AI stethoscope as good as a vet? In dogs, it matched fourth-year students on murmur detection; in cats it largely failed. It is a screening aid, not a diagnosis.

Can I buy an AI stethoscope for home use? Yes — but share recordings with your veterinarian and never self-diagnose.

Will AI replace veterinary cardiologists? No. Expert auscultation, echocardiography, and clinical judgment remain the standard of care.