University of Sheffield, Sheffield, UK.
Sheffield Hallam University, Sheffield, UK.
Med Biol Eng Comput. 2020 Jul;58(7):1549-1563. doi: 10.1007/s11517-020-02167-z. Epub 2020 May 14.
Wrist injuries are common in paediatric trauma; however, only half of children evaluated with an x-ray for possible fractures will have one. Thermal imaging offers a possible non-ionising method of screening for fractures and thus reducing negative x-ray rates. One hundred five children attending the Emergency Department for wrist injuries were recruited. Two 30-s thermal videos were recorded from injured and uninjured wrists-in flat and 45° elevated positions. A region of interest (ROI) was defined on each wrist. Cases in which the ROI was covered or had ice applied were excluded, leaving 40 patients for analysis. Comparisons of ROI included (i) injured and uninjured wrists-flat and elevated positions; (ii) as in (i) with a reference region on the proximal forearm subtracted; (iii) injured wrist ROI-flat and elevated positions. Fractures and sprains increased the mean skin surface temperature by 1.519% (p = 0.008) and 0.971% (p = 0.055) respectively compared with the uninjured wrist. The mean temperature difference between flat and elevated positions for fractures was 0.268% and - 0.1291% for sprains. This difference was statistically significant for fracture (p = 0.004) but not sprain (p = 0.500). The temperature differences recorded by thermal imaging between fractured and sprained wrists may assist in differentiation of these injuries. Graphical abstract Operational stages involved from thermal video recording to generation of results.
手腕损伤在儿童创伤中很常见；然而，在接受 X 光检查以确定是否骨折的儿童中，只有一半会发现骨折。热成像提供了一种可能的非电离筛选骨折的方法，从而降低了 X 光的阴性率。105 名因手腕受伤而到急诊科就诊的儿童被招募。从受伤和未受伤的手腕以平位和 45°抬高位分别记录 2 个 30 秒的热视频。在每个手腕上定义一个感兴趣区域（ROI）。排除 ROI 被覆盖或应用冰的病例，留下 40 名患者进行分析。对 ROI 的比较包括：（i）受伤和未受伤的手腕，平位和抬高位；（ii）与（i）相同，减去近侧前臂的参考区域；（iii）受伤手腕的 ROI，平位和抬高位。与未受伤的手腕相比，骨折和扭伤分别使皮肤表面平均温度升高了 1.519%（p=0.008）和 0.971%（p=0.055）。骨折时平位和抬高位之间的平均温度差为 0.268%，扭伤时为-0.1291%。这种差异在骨折时具有统计学意义（p=0.004），但在扭伤时无统计学意义（p=0.500）。热成像记录的骨折和扭伤手腕之间的温度差异可能有助于区分这些损伤。
