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33rd Annual Scientific Meeting proceedings

Stream:   |   Session:
Date/Time: 30-11--0001 (00:00 - 00:00)   |   Location:
Precision and repeatability of the iPhone with LIDAR laser measuring cutaneous and subcutaneous masses in 20 dogs.
Quinonero I2, Karydas S1, Solano MA*1
1The Ralph, Marlow, United Kingdom, 2University of Glasgow, Glasgow, United Kingdom.

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.

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