Deane C, Lees C
Department of Medical Engineering, King's College Hospital, London, UK.
Ultrasound Obstet Gynecol. 2000 May;15(5):418-23. doi: 10.1046/j.1469-0705.2000.00111.x.
To investigate ultrasound use and exposure in pregnant women undergoing Doppler ultrasound investigation of the maternal and fetal circulation using Doppler ultrasound techniques.
Sample graphical displays were generated showing duration of each mode, thermal and mechanical index levels and overall elapsed time of scan and modes.
The displays revealed combinations of scanner settings which delivered higher output intensity levels and which we subsequently altered in our practice to reduce ultrasound exposure.
A display of this type would enable monitoring of output levels and exposures, especially for operators undergoing training in Doppler applications. It would also identify poor practice where there is prolonged exposure at high output levels. Such a display, in combination with accurate output measurement from manufacturers and independent laboratories, would help to ensure the safe use of ultrasound in fetal assessment.
使用多普勒超声技术，对接受母胎循环多普勒超声检查的孕妇的超声使用及暴露情况进行调查。
生成样本图形显示，展示每种模式的持续时间、热指数和机械指数水平以及扫描和模式的总耗时。
这些显示揭示了产生较高输出强度水平的扫描仪设置组合，我们随后在实践中对其进行了更改，以减少超声暴露。
这种类型的显示能够监测输出水平和暴露情况，尤其是对于正在接受多普勒应用培训的操作人员。它还能识别在高输出水平下长时间暴露的不良操作。这种显示，结合制造商和独立实验室的准确输出测量，将有助于确保超声在胎儿评估中的安全使用。
