33rd Annual Scientific Meeting proceedings

Introduction: LIDAR is a radar sensor that uses infra-red light. LIDAR was introduced in the iPhone Pro-12, and it has been used in different scientific fields with similar conclusions: it is accurate when compared with a professional-grade LIDAR. There is a lack of studies regarding its application in veterinary or human medicine. Our hypothesis was that the iPhone with LIDAR will be accurate measuring cutaneous and subcutaneous masses ≥1 cm in dogs. 

Materials and Methods: A pilot study was conducted with 3 observers measuring two calibrated rules (DSLRKIT) with an iPhone and the 3d scanner app®. The clinical study was conducted by 1 observer measuring cutaneous/subcutaneous masses ≥1 cm in 20 dogs, using an iPhone (≤50 cm distance with the 3d scanner app®) and compared with a calliper.   

Results: In the pilot study, inter-observer correlation was high (>0.984) with no significant differences between measurements at ≤50 cm from the object (t-test P<0.001). In the clinical study, there were no significant differences and high correlation between measurements obtained using the iPhone and calliper (t-test P<0.001 and Spearman's Rho >0.9).

Conclusions: iPhone with LIDAR was accurate measuring cutaneous and subcutaneous masses ≥1 cm. This technology may have application in daily clinical practice.