Taylor Nicholas, Renfrew Helen
Imaging Department, Eastcott Veterinary Referrals, Edison Park, Hindle Way, Swindon, Wiltshire, SN33FR, UK.
Imaging Department, Eastcott Veterinary Referrals, Edison Park, Hindle Way, Swindon, Wiltshire, SN33FR, UK.
Top Companion Anim Med. 2022 Nov-Dec;51:100697. doi: 10.1016/j.tcam.2022.100697. Epub 2022 Aug 21.
Advanced imaging techniques such as computed tomography are commonplace in human medicine and increasingly, are being utilized by the veterinary profession as scanners become more available and affordable. The benefit of computed tomography imaging is the provision of detailed cross-sectional imaging and 3D reconstruction, but this incurs higher doses of ionizing radiation to the patient. This paper reviews risks and effects associated with ionizing radiation, making comparisons to human models, and a hypothetical scenario is discussed using the human risk model for age at time of exposure and increased lifetime risk of cancer with a dog to human year's formula. Various issues are considered with respect to dose reduction, training, equipment and the reported "greater need for guidance and the establishment of best practice" which may lead to future guidance from the International Commission on Radiological Protection.
诸如计算机断层扫描等先进成像技术在人类医学中很常见，并且随着扫描仪变得越来越容易获得且价格越来越实惠，兽医行业也越来越多地使用这些技术。计算机断层扫描成像的好处是能够提供详细的横断面成像和三维重建，但这会使患者受到更高剂量的电离辐射。本文回顾了与电离辐射相关的风险和影响，并与人类模型进行了比较，还使用人类风险模型，根据暴露时的年龄以及狗与人年龄换算公式得出的癌症终身风险增加情况，讨论了一个假设情景。文中考虑了有关剂量降低、培训、设备以及报告中提到的“对指导和最佳实践确立的更大需求”等各种问题，这些问题可能会促使国际放射防护委员会未来发布相关指导意见。
