Detection of Perforators Using Smartphone Thermal Imaging

Suphachokauychai, Songsak; Kiranantawat, Kidakorn; Sananpanich, Kanit

doi:10.1097/gox.0000000000000715

Cited by 7 publications

(9 citation statements)

References 4 publications

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“… 15 In 2016, Hardwicke et al 16 described using a low-end, smartphone-compatible thermal camera, the FLIR ONE for pre-, intra-, and postoperative use, concluding that it provided a low-cost alternative that could identify hotspots for confirmation using HHD. Other authors have reported positive results with low-end thermal cameras, 17 – 21 and a study comparing the FLIR ONE with CTA for identification of arterial perforators reported high concordance between the methods. 22 …”

Section: Introductionmentioning

confidence: 91%

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

Obinah

Nielsen

Hølmich

2020

Plastic and Reconstructive Surgery - Global Open

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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.

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Section: Introductionmentioning

confidence: 91%

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

Obinah

Nielsen

Hølmich

2020

Plastic and Reconstructive Surgery - Global Open

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“…The FLIR C2 IR camera is a professional tool for performing a wide variety of temperature scans. In the medical field, some practitioners use this tool to scan the process of wound healing [10].…”

Section: Advances In Biological Sciences Research Volume 12mentioning

confidence: 99%

Rats Development of Contactless Thermal Detector for Animal: Comparison of Three Sensor Types

Arif¹,

Santoso²,

Wibawa³

2021

Advances in Biological Sciences Research

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One of the important physiological parameters is body temperature, and the increased level is an early indicator of infection. Therefore, it is necessary to develop temperature detection in animals using contactless methods and with precise results. This study aimed to compare 3 types of IR sensors for the body temperature check without contact in animals. The three sensors are the Thermo gun sensor type, MLX90614, and AMG8833. The MLX90614 and AMG8833 are used by ensuring a connection with the Arduino Uno microcontroller. The script and libraries used were followed the standard code provided by Arduino. Furthermore, the data from the 3 sensors were compared with the FLIR C2 professional thermal camera and the contact temperature measurement was carried out with a thermometer. The results of measurements using 3 types of sensors showed that the thermo gun sensor was not suitable for non-contact temperature check in animals since it cannot be calibrated. The MLX906144 and AMG8833 sensors can be used as non-contact thermometers in animals by optimizing and modifying the script code or adding circuit components. To obtain the temperature measurement optimization formula, it should be repeated with a larger number of trials, while paying attention to the factor of ambient change.

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“…The technique for using the FLIROne Camera to venous perforators has already been defined. Suphachokauychai et al [ 4 ] have already provided guidelines for the use of these cameras to obtain accurate results. They noted that firstly the camera should be used on a dry surface.…”

Section: Ideamentioning

confidence: 99%

“…Ideally the measuring distance should be 100 cm and the thermal range should be locked at 25℃–30℃. These authors note that this technique has become their favored one for identifying vascular perforators, allowing them the freedom to design a free-style perforator flap [ 4 ]. We decided to follow these parameters for our measurements.…”

Section: Ideamentioning

confidence: 99%

“…Given the variability of lower limb perforators and the difficulty in identifying specifics islands of tissue that can be perfused by reliably-identifiable perforators, recent studies have attempted to use computed tomography (CT) scans to study locations of perforators—with the authors noting that CT angiography was able to show perforators with high resolution and accurately demonstrate vessel size, location and course [ 4 ]. It is now established that in most cases, distal arterial perforators have veins accompanying them–in general, a vein lies inferior to the artery; when there are two veins, they often tend to interconnect around the artery.…”

Section: Introductionmentioning

confidence: 99%

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Using a Thermal Imaging Camera to Locate Perforators on the Lower Limb

Paul

2017

Arch Plast Surg

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Reconstruction of the lower limb presents a complex problem after skin cancer surgery, as proximity of skin and bone present vascular and technical challenges. Studies on vascular anatomy have confirmed that the vascular plane on the lower limb lies deep to the deep fascia. Yet, many flaps are routinely raised superficial to this plane and therefore flap failure rates in the lower limb are high. Fascio-cutaneous flaps based on perforators offer a better cosmetic alternative to skin grafts. In this paper, we detail use of a thermal imaging camera to identify perforator ‘compartments’ that can help in designing such flaps.

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Detection of Perforators Using Smartphone Thermal Imaging

Cited by 7 publications

References 4 publications

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

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

Rats Development of Contactless Thermal Detector for Animal: Comparison of Three Sensor Types

Using a Thermal Imaging Camera to Locate Perforators on the Lower Limb

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