Feedback Methods to Adjust Finger Orientation for High Accuracy Softness Evaluation with a Wearable Pressure Distribution Sensor in Cervix Examination
Feedback Methods to Adjust Finger Orientation for High Accuracy Softness Evaluation with a Wearable Pressure Distribution Sensor in Cervix Examination
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子宫颈检查中使用可穿戴压力分布传感器调整手指方向进行高精度柔软度评估的反馈方法
DOI：
10.1109/aim52237.2022.9863348
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Yoshihiro Tanaka
中科院分区：
文献类型：
--
作者：
Tomohiro Udo;Hiroshi Miura;Yukihiro Terada;Yoshihiro Tanaka
妇产科内部检查时需要评估子宫颈的柔软度，以预测流产和早产的风险。在之前的一项研究中，我们之前开发了一种可穿戴压力分布传感器，用于在内部检查期间测量子宫颈的柔软度。然而，传感操作需要精确控制才能实现高精度。尽管可穿戴传感器足够灵活，可以反映人类的手动操作，但它们无法保持高灵敏度。特别是，在内部检查期间，由于临床医生看不到子宫颈，因此很难进行适当的操作。因此，我们尝试通过提供操作反馈来调整传感操作来解决这个问题。在本研究中，我们关注手指方向并研究操作调整和柔软度评估的有效反馈。首先，我们使用视觉和触觉刺激比较了两种反馈方法。对比结果表明，感知替代视觉方法在调整方位方面明显更快、更准确。基于这些结果，我们进行了用知觉替代视觉反馈模拟触诊的实验，以验证柔软度评估的有效性。结果表明，感知替代视觉反馈可以提高传感器灵敏度，实现高精度的柔软度评估。
Evaluating the softness of the cervix is required during obstetric and gynecological internal examinations to predict the risk of miscarriage and premature birth. In a previous study, we previously developed a wearable pressure distribution sensor to measure the softness of the cervix during an internal examination. However, the sensing operation required precise control to achieve high accuracy. Although wearable sensors are sufficiently flexible to reflect manual operation by humans, they cannot maintain high sensitivity. In particular, the appropriate operation is difficult during internal examination because the cervix is not visible to the clinician. Thus, we attempt to solve this problem by providing feedback on the operation to adjust the sensing operation. In this study, we focused on finger orientation and investigated effective feedback for operational adjustment and softness evaluation. First, we compared the two feedback methodologies using visual and tactile stimuli. The comparison results showed that the perceptual substitute visual method was significantly faster and more accurate in adjusting the orientation. Based on these results, we conducted an experiment to simulate palpation with perceptual substitute visual feedback to verify the effectiveness of the softness evaluation. The results showed that perceptual substitute visual feedback could improve sensor sensitivity and achieve a high-accuracy softness evaluation.
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