CPGEI - Universidade Tecnológica Federal Do Paraná, Avenida Silva Jardim, 3165, Rebouças, Zip code 80230-901, Curitiba, Brasil.
PPGCS - Pontifícia Universidade Católica Do Paraná, Curitiba, Brasil.
Biomed Eng Online. 2022 Jun 13;21(1):35. doi: 10.1186/s12938-022-01005-7.
Low- to high-energy impact trauma may cause from small fissures up to extended bone losses, which can be classified as closed or opened injuries (when they are visible at a naked eye).
The aim of this study was to investigate the feasibility of clinical diagnosis of bone trauma through medical infrared thermography, in a hospital emergency room.
Forty-five patients with suspected diagnosis of bone fracture were evaluated by means of medical infrared images, and the data correlated with the gold standard radiographic images, in the anteroposterior, lateral, and oblique views, at the orthopedic emergency department. The control group consisted of thermal images of the contralateral reference limb of the volunteers themselves. Data were acquired with a medical grade infrared camera in the regions of interest (ROIs) of leg, hand, forearm, clavicle, foot, and ankle.
In all patients evaluated with a diagnosis of bone fracture, the mean temperature of the affected limb showed a positive difference greater than 0.9 °C (towards the contralateral), indicating the exact location of the bone trauma according, while the areas diagnosed with reduced blood supply, showed a mean temperature with a negative variation.
Clinical evaluation using infrared imaging indicates a high applicability potential as a tool to support quick diagnosis of bone fractures in patients with acute orthopedic trauma in an emergency medical setting. The thermal results showed important physiological data related to vascularization of the bone fracture and areas adjacent to the trauma well correlated to radiographic examinations.
低能到高能冲击创伤可导致小裂缝扩展至广泛的骨质丢失，这些损伤可分为闭合性或开放性损伤（当肉眼可见时）。
本研究旨在探讨在医院急诊室通过医学红外热成像技术对骨外伤进行临床诊断的可行性。
对 45 名疑似骨折的患者进行医学红外图像评估，并将数据与放射影像学标准图像进行关联，包括前后位、侧位和斜位，在骨科急诊室进行。对照组由志愿者自身对侧参考肢体的热图像组成。使用医用红外摄像机在感兴趣区域（ROI）采集腿部、手部、前臂、锁骨、脚部和踝关节的数据。
在所有诊断为骨折的患者中，受累肢体的平均温度表现出大于 0.9°C 的正向差异（相对于对侧），根据这一差异可准确指示骨外伤的位置，而被诊断为血供减少的区域则表现出平均温度的负向变化。
临床评估使用红外成像技术具有较高的适用性潜力，可作为一种工具，在急诊医疗环境中支持对急性骨科创伤患者的骨折快速诊断。热学结果显示了与骨折和创伤附近区域的血管化相关的重要生理数据，与放射学检查有很好的相关性。
