诊断超声低剂量安全规范的必要性研究  

Research on the Necessity of Low-dose Safety Standard for Diagnostic Ultrasound

作　　者：张靖 冯磊 梁振士 陈静 郑威 Zhang jing;Feng lei;Liang zhenshi;Chen jing;Zheng wei(Beijing Institute of Medical Device Testing Beijing Center for Testing and Research of Medical Biological Protective Equipment,Beijing 101111)

机构地区：[1]北京市医疗器械检验研究院·北京市医用生物防护装备检验研究中心,北京101111

出　　处：《医疗装备》2024年第18期36-38,共3页Medical Equipment

摘　　要：随着医疗水平的提高,临床尤其孕期超声检查和生殖医学领域对医学影像的图像质量提出了更高要求。而厂家为了提高超声检测的图像质量,通过增加超声设备的诊断剂量获得更清晰的图像。虽然短时小剂量的超声辐射是相对安全的,但长时大剂量的超声辐射对机体具有潜在危险性。因此,临床应用超声检测时,应在满足诊断需求的情况下控制超声设备的诊断剂量。国际上已有多个超声诊断剂量的推荐标准,其中对声强数值和诊断时间也提出了要求。但临床医师为了获得高质量的诊断图像,超声设备声强数值设置完全可能超过声强安全值,而超声检查时间尚缺少标准规定。该研究通过介绍多个现行的超声诊断剂量标准,探讨不同临床图像需求下规范超声低剂量输出指标的必要性,从而为临床质控及规范输出剂量提供参考。The continuous progress of ultrasound technology has put forward higher demands on image quality,especially in the field of pregnancy ultrasound examination and reproductive medicine,which has led to the increase of diagnostic dose of ultrasound equipment.Short-time and small-dose ultrasonic radiation is relatively safe,and long-time and large-dose ultrasonic radiation is potentially dangerous to the body.In clinical application,it is necessary to control the diagnostic dose and adhere to the ALARA principle in the world when the diagnosis needs to be ensured.Some recommended diagnostic doses have been proposed in the world,and the requirements for sound intensity and diagnostic time have also been proposed.However,in practical use,in order to obtain a good image,the sound intensity fo ultrasound equipment may exceed the safe value.What is more,the ultrasound examination time is not specified by standard.Therefore,it is necessary to generate a quantization index for different clinical needs through our research,and then to form a standard or quality control standard for output dose under corresponding clinical needs.

关 键 词：超声 声输出 剂量 标准 

分 类 号：R445.1[医药卫生—影像医学与核医学]