High-end versus Low-end Thermal Imaging for Detection of Arterial Perforators

Autor: Lisbet Rosenkrantz Hölmich, Magnús Pétur Bjarnason Obinah, Monica Nielsen
Rok vydání: 2020
Předmět:
Zdroj: Plastic and Reconstructive Surgery Global Open
Plastic and Reconstructive Surgery, Global Open, Vol 8, Iss 10, p e3175 (2020)
Obinah, M P B, Nielsen, M & Hölmich, L R 2020, ' High-end versus Low-end Thermal Imaging for Detection of Arterial Perforators ', Plastic and Reconstructive Surgery-Global Open, vol. 8, no. 10, e3175 . https://doi.org/10.1097/GOX.0000000000003175
ISSN: 2169-7574
Popis: Supplemental Digital Content is available in the text.
Background: Thermal imaging was first reported as a method for detection of arterial perforators in 1968 and has since been shown to be an extremely accurate way to assess perforators with an audible Doppler signal, using high-end professional thermal cameras. This technology has recently become easily accessible with the advent of smartphone-compatible, low-end thermal cameras. Several groups have reported on the use of these devices in the pre-, intra-, and postoperative phase, yet there have been few attempts to validate them against existing methods or compare them with high-end thermal cameras. Methods: The aim of this study was to compare a low-end smartphone-compatible thermal camera, the FLIR ONE Pro (ONEPro), priced US $400, with a high-end thermal camera the FLIR A35sc (A35sc), priced US $5000, for the detection of arterial perforators on the anterolateral thigh, using a handheld Doppler and Color Doppler Ultrasound to verify the results. Results: We examined 23 thighs in 13 healthy volunteers and identified a total of 779 hotspots using both cameras. The A35sc identified on average 33.5 hotspots per thigh. The ONEPro identified on average 31.5 hotspots per thigh. Using a handheld Doppler, we confirmed 95.9% of hotspots identified with the ONEPro and 95.8% of hotspots identified with the A35sc. Using Color Doppler Ultrasound, we confirmed 95% of hotspots identified using the ONEPro and 94.9% of hotspots identified with the A35sc. Conclusion: While the high-end camera identified slightly more hotspots, verification data were very similar for the 2 cameras, and for clinical purposes these differences are negligible.
Databáze: OpenAIRE