Performance of a miniature magnetic position sensor for three-dimensional ultrasound imaging
Performance of a miniature magnetic position sensor for three-dimensional ultrasound imaging
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DOI：
10.1016/s0301-5629(97)00043-4
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发表时间：
1997-01-01
影响因子：
2.9
通讯作者：
Martin, RW
中科院分区：
文献类型：
--
作者：
Leotta, DF;Detmer, PR;Martin, RW
对一种用于三维超声成像的微型磁位置传感器进行了体外精密度和准确度测试。传感器本身能够在其指定的50 cm操作范围内定位点，均方根（rms）不确定度为1.7 mm，精度为0.05 +/- 0.62 mm。使用超声成像系统，从任意观察窗口定位点，均方根不确定度为2.4 mm，精度为0.06 +/- 0.68 mm，如果观察窗限于典型超声检查的代表，则系统可以实现<1 mm的点位置的rms不确定性。当传感器安装在超声扫描头上时，性能不受成像系统操作的影响。还测量了在操作环境中对金属的敏感性，（C）1997年世界医学和生物学超声联合会。
A miniature magnetic position sensor used for three-dimensional ultrasound imaging was tested for precision and accuracy in vitro. The sensor alone was able to locate points with root-mean-square (rms) uncertainty of 1.7 mm and accuracy of 0.05 +/- 0.62 mm over its specified operating range of 50 cm, With an ultrasound imaging system, a point was located from arbitrary viewing windows with 2.4-mm rms uncertainty and 0.06 +/- 0.68 mm accuracy, If viewing windows were Limited to those representative of a typical ultrasound examination, the system could achieve rms uncertainty in point location of < I mm, Performance was not affected by operation of the imaging system when the sensor was mounted on an ultrasound scanhead. Sensitivity to metals in the operating environment was also measured, (C) 1997 World Federation for Ultrasound in Medicine & Biology.