Jiang Tingyi, Zhu Xinle, Jiao Yang, Li Xinze, Shen Zhitian, Cui Yaoyao
Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215010, China.
University of Chinese Academy of Sciences, Beijing 100049, China.
Diagnostics (Basel). 2020 Nov 28;10(12):1020. doi: 10.3390/diagnostics10121020.
An ultrasonic needle-actuating device for tissue biopsy and regional anaesthesia offers enhanced needle visibility with color Doppler imaging. However, its specific performance is not yet fully determined. This work investigated the influence on needle visibility of the insertion angle and drive voltage, as well as determined the accuracy and agreement of needle tip localization by comparing color Doppler measurements with paired photographic and B-mode ultrasound measurements. Needle tip accuracy measurements in a gelatin phantom gave a regression trend, where the slope of trend is 0.8808; coefficient of determination (R) is 0.8877; bias is -0.50 mm; and the 95% limits of agreement are from -1.31 to 0.31 mm when comparing color Doppler with photographic measurements. When comparing the color Doppler with B-mode ultrasound measurements, the slope of the regression trend is 1.0179; R is 0.9651; bias is -0.16 mm; and the 95% limits of agreement are from -1.935 to 1.605 mm. The results demonstrate the accuracy of this technique and its potential for application to biopsy and ultrasound guided regional anaesthesia.
一种用于组织活检和区域麻醉的超声针驱动装置通过彩色多普勒成像提高了针的可视性。然而，其具体性能尚未完全确定。这项工作研究了进针角度和驱动电压对针可视性的影响，并通过将彩色多普勒测量结果与配对的摄影测量和B模式超声测量结果进行比较，确定了针尖定位的准确性和一致性。在明胶模型中进行的针尖准确性测量呈现出一种回归趋势，即趋势斜率为0.8808；决定系数（R）为0.8877；偏差为 -0.50毫米；当将彩色多普勒测量结果与摄影测量结果进行比较时，95%的一致性界限为 -1.31至0.31毫米。当将彩色多普勒测量结果与B模式超声测量结果进行比较时，回归趋势的斜率为1.0179；R为0.9651；偏差为 -0.16毫米；95%的一致性界限为 -1.935至1.605毫米。结果证明了该技术的准确性及其在活检和超声引导区域麻醉中的应用潜力。
