Expertise Affects Inter-Observer Agreement at Peripheral Locations within a Brain Tumor.
Expertise Affects Inter-Observer Agreement at Peripheral Locations within a Brain Tumor.
复制标题
专业知识影响脑肿瘤内周围部位观察者间的一致性。
DOI：
10.3389/fpsyg.2017.01628
复制
发表时间：
2017
影响因子：
3.8
通讯作者：
Kent C
中科院分区：
文献类型：
--
作者：
Crowe EM;Alderson W;Rossiter J;Kent C
磁共振成像（MRI）是临床脑肿瘤检测和描绘的重要工具。由于大体肿瘤体积描绘的过程与临床医生有关，如果要提高预期寿命，就需要更好地了解他们如何执行这项任务。新的专家比较研究已被用来检查异常检测的专业知识的影响，但很少有研究调查脑肿瘤划定的专业知识相关的差异。在这项研究中，本科生（新手）和放射科医生（专家）检查了T1和T2单脑和全脑MRI扫描的组合，每个扫描都包含一个肿瘤。使用平板电脑和手写笔提供交互式环境，参与者有无限的时间自由滚动MRI切片，并被指示描绘（即，画出边界）围绕任何肿瘤组织。没有可靠的证据表明专家和新手之间的大体肿瘤体积或切片总数存在差异。两个专业组的一致性都很低，肿瘤内的外周部位显著低于中心部位。专家的专业水平和肿瘤内的位置之间存在相互作用，专家在外周切片上的一致性高于新手。还观察到大脑图像设置对参与者检查切片的顺序的影响。早期职业放射科医生和目前的做法在医院进行的培训，这些结果的影响进行了讨论。
Magnetic resonance imaging (MRI) is a crucial tool for clinical brain tumor detection and delineation. Since the process of gross tumor volume delineation resides with clinicians, a better understanding of how they perform this task is required if improvements in life expectancy are to be made. Novice-expert comparison studies have been used to examine the effect of expertise on abnormality detection, but little research has investigated expertise-related differences in brain tumor delineation. In this study, undergraduate students (novices) and radiologists (experts) inspected a combination of T1 and T2 single and whole brain MRI scans, each containing a tumor. Using a tablet and stylus to provide an interactive environment, participants had an unlimited amount of time to scroll freely through the MRI slices and were instructed to delineate (i.e., draw a boundary) around any tumorous tissue. There was no reliable evidence for a difference in the gross tumor volume or total number of slices delineated between experts and novices. Agreement was low across both expertise groups and significantly lower at peripheral locations within a tumor than central locations. There was an interaction between expertise level and location within a tumor with experts displaying higher agreement at the peripheral slices than novices. An effect of brain image set on the order in which participants inspected the slices was also observed. The implications of these results for the training undertaken by early career radiologists and current practices in hospitals are discussed.
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DOI：
10.1016/j.ijrobp.2012.02.003
发表时间：
2012-08-01
影响因子：
7
作者：
Breunig, Jennifer;Hernandez, Sophy;Roeske, John C.
通讯作者：
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影响因子：
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影响因子：
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作者：
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影响因子：
4.3
作者：
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Dewal, M. L.
影响因子：
3.5
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通讯作者：
Dawant BM