Statistical considerations for repeatability and reproducibility of quantitative imaging biomarkers.

Statistical considerations for repeatability and reproducibility of quantitative imaging biomarkers.
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DOI:
10.1259/bjro.20210083
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发表时间:
2022
期刊:
BJR open
影响因子:
--
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--
中科院分区:
其他
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--
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定量成像生物标志物(QIB)越来越多地用于临床研究。由于许多QIB是通过图像数据采集和数据分析中的多个步骤得出的,因此QIB测量可能会产生很大的变异性,这对将QIB转化为临床试验并最终转化为临床实践构成了重大挑战。重复性和再现性构成了QIB测量的可靠性。在这篇文章中,我们回顾了QIB测量的重复性和再现性的统计方面,介绍了QIB重复性和再现性评估的方法和指标,并说明了QIB测量误差对样本量和统计功效计算的影响,以及QIB作为预测生物标志物的预测性能。
Quantitative imaging biomarkers (QIBs) are increasingly used in clinical studies. Because many QIBs are derived through multiple steps in image data acquisition and data analysis, QIB measurements can produce large variabilities, posing a significant challenge in translating QIBs into clinical trials, and ultimately, clinical practice. Both repeatability and reproducibility constitute the reliability of a QIB measurement. In this article, we review the statistical aspects of repeatability and reproducibility of QIB measurements by introducing methods and metrics for assessments of QIB repeatability and reproducibility and illustrating the impact of QIB measurement error on sample size and statistical power calculations, as well as predictive performance with a QIB as a predictive biomarker.
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