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首页> 外文会议>International Workshop on Digital Mammography(IWDM 2006); 20060618-21; Manchester(GB) >Feasibility and Acceptability of Stepwedge-Based Density Measurement
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Feasibility and Acceptability of Stepwedge-Based Density Measurement

机译：基于阶梯楔形的密度测量的可行性和可接受性

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摘要

A link between increased breast density, as visualised in mammograms, and increased risk of developing breast cancer has been established. Recently, a number of objective, quantitative methods for measuring breast density have been described. One such method requires a calibration object to be imaged alongside the breast. However, it is important that this should not interfere with the routine imaging process. In this paper, we investigate the amount of space in mammographic images which is not currently occupied by the breast or existing patient labels and markers, and which would therefore be available for imaging an additional calibration device. We do this with a view to estimating the likelihood of failure of the method, and also to determining whether, without detriment to the imaging process, a device could be permanently fixed to the breast support platform. We also examine the impact of markers attached to the compression plate on the visibility of breast tissue. The results show that our existing calibration device may be used successfully without interfering with the routine imaging process, although permanently fixing such a device may present problems in a small minority of cases, and we demonstrate that the number of cases which would fail can be reduced by using a smaller stepwedge.
机译：如乳房X线照片所示，增加的乳房密度与增加患乳腺癌的风险之间已经建立了联系。最近，已经描述了用于测量乳房密度的许多客观的定量方法。一种这样的方法需要将校准对象与乳房一起成像。但是，重要的是不要干扰常规成像过程。在本文中，我们调查了乳房摄影图像中当前未被乳房或现有患者标签和标记物占据的空间量，因此可用于成像其他校准设备。我们这样做是为了估计该方法失败的可能性，以及确定在不损害成像过程的前提下，是否可以将设备永久固定在乳房支撑平台上。我们还检查了附着在加压板上的标记物对乳房组织可见性的影响。结果表明，尽管在少数情况下永久性地固定这种设备可能会出现问题，但我们现有的校准设备可以在不干扰常规成像过程的情况下成功使用，并且证明了可以减少失败案例的数量通过使用较小的阶梯楔。

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