• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Journal of Digital Imaging >Computer Input Devices: Neutral Party or Source of Significant Error in Manual Lesion Segmentation?
【2h】

Computer Input Devices: Neutral Party or Source of Significant Error in Manual Lesion Segmentation?

机译：计算机输入设备：中立的一方还是手动病变分割中的重大错误来源？

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lesion segmentation involves outlining the contour of an abnormality on an image to distinguish boundaries between normal and abnormal tissue and is essential to track malignant and benign disease in medical imaging for clinical, research, and treatment purposes. A laser optical mouse and a graphics tablet were used by radiologists to segment 12 simulated reference lesions per subject in two groups (one group comprised three lesion morphologies in two sizes, one for each input device for each device two sets of six, composed of three morphologies in two sizes each). Time for segmentation was recorded. Subjects completed an opinion survey following segmentation. Error in contour segmentation was calculated using root mean square error. Error in area of segmentation was calculated compared to the reference lesion. 11 radiologists segmented a total of 132 simulated lesions. Overall error in contour segmentation was less with the graphics tablet than with the mouse (>P < 0.0001). Error in area of segmentation was not significantly different between the tablet and the mouse (>P = 0.62). Time for segmentation was less with the tablet than the mouse (>P = 0.011). All subjects preferred the graphics tablet for future segmentation (>P = 0.011) and felt subjectively that the tablet was faster, easier, and more accurate (>P = 0.0005). For purposes in which accuracy in contour of lesion segmentation is of the greater importance, the graphics tablet is superior to the mouse in accuracy with a small speed benefit. For purposes in which accuracy of area of lesion segmentation is of greater importance, the graphics tablet and mouse are equally accurate.
机译：病变分割涉及概述图像上的异常轮廓，以区分正常组织与异常组织之间的边界，对于在临床，研究和治疗目的的医学成像中跟踪恶性和良性疾病至关重要。放射科医生使用激光光学鼠标和图形输入板将每位受试者的12个模拟参考病变分为两组（一组包括三种病变形态，两种尺寸，一种针对每个输入设备，每种设备两组，每组六个，由三个两种尺寸的形态）。记录分割时间。受试者在细分后完成了意见调查。使用均方根误差计算轮廓分割中的误差。与参考病变相比，计算了分割区域的误差。 11位放射科医生对总共132个模拟病变进行了细分。使用图形输入板的轮廓分割总体误差要小于使用鼠标（> P <0.0001）。平板电脑和鼠标之间的分割区域误差没有显着差异（> P = 0.62）。使用平板电脑进行细分的时间少于鼠标（> P = 0.011）。所有受试者都希望将图形输入板用于将来的细分（> P = 0.011），并主观地认为图形输入板更快，更容易且更准确（> P = 0.0005）。对于其中病变分割轮廓的准确性更为重要的目的，图形输入板在精度上优于鼠标，但速度效益却不高。对于病灶分割区域的准确性更为重要的目的，图形输入板和鼠标同样准确。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号