Peer-reviewed veterinary case report
How well Vetscan Imagyst detects dog parasites in poop samples
By Kanski, Sabrina et al.Ā·Published in Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, IncĀ·2025Ā·Small Animal Clinic, GermanyĀ·View original on PubMed ā
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Original publication title: Performance of the Vetscan Imagyst in point-of-care detection ofin canine fecal samples.
- Species:
- dog
Plain-English summary
A group of dogs under 19 months old had their feces tested for a common intestinal parasite using a new device called the Vetscan Imagyst. This device uses advanced technology to detect the parasite and showed a high accuracy rate, correctly identifying 88.4% of positive cases. While it performed well for determining if the parasite was present or not, it is not recommended for counting the number of parasites due to variability in results. Overall, the Vetscan Imagyst can be a useful tool for quick testing in veterinary clinics.
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Abstract
is a common parasite of the gastrointestinal tract of dogs, with an especially high prevalence in dogs <1-y-old. Methods for detectingare point-of-care (POC) tests such as lateral-flow tests or fecal flotation. The Vetscan Imagyst (Zoetis) is a new POC device for the detection ofin fecal samples using zinc sulfate flotation, automated slide scanning, and image recognition with artificial intelligence. Vetscan results are the number ofcysts per coverslip. We compared the performance of the Vetscan and another POC test (SNAPtest; Idexx) with a direct immunofluorescence assay (IFA) performed in a specialized parasitology laboratory as the reference test. We included 164 dogs <19-mo-old. We used pooled fecal samples from 3 defecations gained within 2-3 d and tested the repeatability of the Vetscan by triplicate measurement. Compared to IFA, Vetscan had a diagnostic sensitivity of 88.4% and specificity of 98.1%; SNAP had a diagnostic sensitivity of 74.4% and specificity of 98.1%. A variation coefficient of 67.0% was determined for the Vetscan results. The performance of the Vetscan is acceptable for the qualitative evaluation of fecal samples (positive or negative), and the device can be used by untrained personnel. Given its high variation coefficient, we do not recommend the Vetscan for monitoring the number of cysts.
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Search related cases āOriginal publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/39267440/