Department of Emergency Medicine, Jan Kochanowski University, Kielce, Poland.
Department of Radiology, Jagiellonian University Medical College, Krakow, Poland.
Can Assoc Radiol J. 2020 May;71(2):238-243. doi: 10.1177/0846537119894250. Epub 2020 Feb 5.
Unintentional drop in body temperature in trauma victims is an independent risk factor for mortality. We aimed to assess the impact of thermal insulation on image quality and radiation dose in polytrauma computed tomography (CT).
Thirteen different insulating covers were used to wrap CT phantoms. Images were assessed subjectively at a radiological workstation and analyzed digitally with dedicated software evaluating the noise intensity, spatial resolution, and image homogeneity. The radiation dose was measured using a dosimeter.
Most materials did not cause significant artifacts apart from 2 heating pads. Although the radiation dose was increased by the majority of insulating covers (up to 64.66%), certain covers decreased the absorbed radiation (up to -7.35%).
The majority of insulating systems do not cause artifacts in CT scans. When using covers with self-heating warmers, removing the heating pad is suggested due to the risk of considerable artifacts appearing. Certain insulating covers may increase or decrease the radiation dose.
创伤患者体温意外下降是死亡的独立危险因素。我们旨在评估在多发伤 CT 中使用隔热材料对图像质量和辐射剂量的影响。
使用 13 种不同的隔热罩包裹 CT 体模。在放射学工作站上进行主观评估，并使用专用软件进行数字分析，评估噪声强度、空间分辨率和图像均匀性。使用剂量计测量辐射剂量。
除 2 个加热垫外，大多数材料不会导致明显的伪影。尽管大多数隔热罩会增加辐射剂量（高达 64.66%），但某些罩会降低吸收的辐射量（高达-7.35%）。
大多数隔热系统不会在 CT 扫描中产生伪影。当使用带有自热保暖器的罩子时，建议去除加热垫，因为有出现明显伪影的风险。某些隔热罩可能会增加或减少辐射剂量。
