Suspicious minds: effect of using a lesion likelihood score on reader behaviour with interactive mammographic CAD

Suspicious minds: effect of using a lesion likelihood score on reader behaviour with interactive mammographic CAD
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可疑的想法:通过交互式乳腺 X 线摄影 CAD 使用病变可能性评分对读者行为的影响

DOI:
10.1117/12.2556472
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发表时间:
2020
期刊:
--
影响因子:
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通讯作者:
Du-Crow E
Du-Crow E
中科院分区:
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文献类型:
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作者:
Du-Crow E

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计算机辅助检测 (CAD) 系统用于帮助读者解读筛查性乳房 X 光检查。 CAD 在乳腺 X 线摄影中的传统使用涉及专家读者最初在独立的情况下搜索图像,然后再次借助自动指示可疑区域的 CAD 提示。另一种方法是交互式 CAD,仅当读者查询有提示的可疑区域时才会显示提示。这些提示通常以该区域的给定恶性置信度显示。对交互式 CAD 进行了两项非专家观察者研究,以研究其对包含微钙化簇的合成图像的视觉搜索的影响。实验 1 (n=44) 使用无 CAD 和交互式 CAD 条件,而实验 2 (n=43) 在这两种条件下都使用交互式 CAD,但其中一个有一个额外的“图像分数”,表示图像包含簇的可能性。在这两个实验中,与单独使用无 CAD 和单独使用交互式 CAD 相比,添加交互式 CAD(实验 1)和图像评分(实验 2)并没有改变敏感性或特异性。在实验 1 中,给定提示的置信度值越高,参与者采取行动的可能性就越大。真实提示的这种效果比错误提示的效果更强。在实验 2 中,参与者观看图像得分较高的图像的时间更长。当没有提示时,他们更有可能在这些图像上犯下误报错误。然而,对可用提示做出的决策主要受到提示置信度值的影响,而不是总体图像得分的影响。
Computer-Aided Detection (CAD) systems are used to help readers in interpreting screening mammograms. Traditional use of CAD in mammography involves an expert reader searching the image initially unaided, and then once again with the aid of CAD prompts that automatically indicate suspicious regions. An alternative approach is interactive CAD, where prompts are only displayed when readers query a suspicious region for which a prompt is available. These prompts are typically displayed with a given confidence of malignancy for that region. Two non-expert observer studies of interactive CAD were conducted to investigate its effect on the visual search of synthetic images containing microcalcification clusters. Experiment 1 (n=44) used no-CAD and interactive CAD conditions, whereas Experiment 2 (n=43) used interactive CAD in both conditions but in one there was an additional ‘image score’ denoting the likelihood that an image contained a cluster. In both experiments, the addition of interactive CAD (Experiment 1) and an image score (Experiment 2) did not change sensitivity or specificity compared to no-CAD and interactive CAD-alone, respectively. In Experiment 1, the higher the confidence value for a given prompt, the more likely a participant was to act on it. This effect was stronger for true prompts than false prompts. In Experiment 2, participants spent longer viewing images with higher image scores. When no prompt was available, they were more likely to make false positive errors on those images. However, decisions made on available prompts were influenced primarily by confidence values of the prompts rather than overall image score.
DOI: 10.1148/radiol.12120218
发表时间: 2013-01-01
期刊: RADIOLOGY
影响因子: 19.7
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期刊: Attention, Perception, & Psychophysics
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发表时间: 2004
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