皮肤色调,环境和技术因素对热成像的影响
Sharon Eve Sonenblum1, Kathleen Jordan1, Glory Tomi John1
1Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia, United States of America.
PloS one
|September 10, 2025
概括
热成像能够有效地检测所有肤色的压力损伤 (PrI) 风险评估温度变化. 然而,相机类型和皮肤色调会影响结果,因此需要为更深色的皮肤颜色量身定制的值.
科学领域:
- 医学成像医学成像
- 生物医学工程 生物医学工程
- 皮肤病学 皮肤病学
背景情况:
- 红斑表明压力损伤 (PRI) 之前的组织损伤,但在深色皮肤色调中很难检测到.
- 热像显示了早期PRI检测的潜力,但在各种肤色和现实世界条件下验证是有限的.
研究的目的:
- 评估环境和技术因素对用于PRI检测的热成像测量的影响.
- 评估皮肤色调如何影响热成像检测到的温度变化.
主要方法:
- 一项前后实验研究涉及35名健康成年人 (30名具有高黑色素指数).
- 用两种相机类型 (FLIR E8-XT,FLIR ONE Pro) 在不同的照明,姿势和距离下捕获热图像,在控制后部上部椎脊柱冷却后进行了冷却.
- 测量了黑色素指数,并使用混合方法模型分析数据.
主要成果:
- 在所有皮肤色调中检测到温度变化,平均冷却差异为-3.7°C.
- 摄像机类型显著影响了测量 (FLIR ONE Pro记录的冷却温度比E8-XT低1.04°C).
- 较高的黑色素水平与更大的温度变化相关,显示最浅和最深的肤色之间有0.98°C的差异.
结论:
- 热成像在各种条件下是强大的,通过测量技术减轻了微小的距离效应.
- 热摄像头之间的差异意味着它们在值设置方面是不可互换的.
- 针对较深色皮肤颜色可能需要量身定制的温度值,以提高PrI检测准确度.
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