Sarah Rumple Mahan
Sarah Rumple Mahan is an award-winning veterinary writer and editor living in Denver, Colorado. Sarah has written for Today’s Veterinary Business since 2018, and she became the publication’s editor-in-chief in 2026. Reach her at smahan@navc.com.

HT VET’s artificial intelligence-powered non-invasive scanner, Vista iQ, is expanding beyond general malignancy screening to identify specific canine tumor types, according to new peer-reviewed research funded by HT VET.
The study, published in the journal Veterinary Sciences, evaluated 1,010 masses in 669 dogs using heat diffusion imaging (HDI) technology. The findings revealed that the scanner rules out malignancy in canine lumps with 92% sensitivity and a 98% negative predictive value. New tumor-specific AI classifiers can now target lipomas and mast cell tumors, allowing clinicians to adjust protocols — such as administering antihistamines — prior to aspiration.
According to the company, the technology is currently used in more than 600 veterinary clinics worldwide. Following adoption, 91% of user clinics reported testing a higher volume of masses, leading to an increase in diagnosed malignancies.
“With the majority of canine lumps and bumps currently left untested, veterinary medicine has lacked an immediate and non-invasive standard for early screening,” said Shani Toledano, cofounder and CEO of HT VET. “This research demonstrates not only the strength of our technology in helping veterinary teams rule out malignancy, but the potential for AI to provide increasingly sophisticated insights into the masses they encounter every day.”
