Research on the Necessity of Low-dose Safety Standard for Diagnostic Ultrasound
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.
万方数据
维普
