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Feasibility of Near-Infrared Image Guided Vascular Identification and Access in Dogs
Seth Bowden1, Jake Johnson1, Kursten V Pierce1
1North Carolina State University College of Veterinary Medicine, Raleigh, North Carolina, USA.
Journal of Veterinary Internal Medicine
|May 16, 2025
Summary
Near-infrared (NIR) imaging is feasible for identifying superficial veins in dogs, even with fur or vasoconstriction. This technology shows promise for veterinary vascular access procedures.
Area of Science:
- Veterinary Medicine
- Medical Imaging Technology
- Animal Physiology
Background:
- Near-infrared (NIR) light technology is increasingly used for vascular access in humans.
- Limited research exists on NIR imaging's application in veterinary medicine.
- Assessing NIR feasibility in animals is crucial for expanding its use.
Purpose of the Study:
- To evaluate the feasibility of NIR vessel finding technology in dogs.
- To assess NIR imaging performance across shaved and unshaved fur.
- To determine the impact of vasoconstriction on NIR imaging efficacy.
Main Methods:
- Six healthy dogs (beagles and hounds) were included.
- Five peripheral vascular sites were imaged.
- Images were assessed before and after shaving, and after dexmedetomidine administration.
Main Results:
- Superficial peripheral veins like the saphenous and cephalic veins were reliably identified.
- Fur presence and dexmedetomidine-induced vasoconstriction did not significantly affect imaging feasibility.
- Shaved areas showed a statistically significant improvement in vessel identification compared to unshaved areas.
Conclusions:
- NIR imaging is a feasible tool for identifying superficial peripheral veins in dogs.
- The technology's effectiveness is independent of fur presence and vasoconstriction.
- NIR imaging holds potential for enhancing vascular access in veterinary clinical settings.
