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对T2W前列腺MRI图像的基于放射学的自动化质量评估
Linda C P Thijssen1, Maarten de Rooij1, Jelle O Barentsz1
1Radboud University Medical Center, Nijmegen, the Netherlands.
European journal of radiology
|June 24, 2023
概括
放射性人工智能可以自动识别低质量的T2加权 (T2W) 核磁共振扫描以检测前列腺癌. 这种自动评估可以提高图像质量,减少重复扫描,并提高临床实践中的诊断准确性.
科学领域:
- 医学成像分析分析 医学成像分析
- 放射学中的人工智能
- 前列腺癌诊断的诊断方法
背景情况:
- 磁共振成像 (MRI) 对于前列腺癌检测至关重要,但图像质量的变化会影响可靠性.
- 需要对前列腺MRI质量的客观和自动评估,以确保足够的采集并提高诊断准确性.
研究的目的:
- 调查使用盲人/无参考图像空间质量评估器 (Brisque) 和放射学来自动评估T2加权 (T2W) 前列腺MRI质量的可行性.
- 开发和验证一个模型来区分临床上可接受的和不可接受的T2W前列腺MRI质量.
主要方法:
- 140名患者的T2W前列腺MRI图像由两位读者使用五分利克尔特尺度对其质量进行了评估.
- 从前列腺区域提取了放射学和布里斯克特征,以训练线性差异分析 (LDA) 模型.
- 用5倍的交叉验证重复200次来评估模型性能,包括分类准确性和ROC-AUC.
主要成果:
- 自动化模型在一个独立的测试组中实现了85.4%±5.5%的准确性.
- 接收器操作曲线 - 曲线下的面积 (ROC-AUC) 为0.856,表明了良好的区分性能.
- 在140张图像中,34张被归类为临床上不可接受的图像,106张被归类为临床上可接受的图像.
结论:
- 基于放射学的人工智能可以有效地自动检测低于最佳的T2W前列腺MRI质量.
- 自动化质量评估可以改善图像采集,减少扫描重复,提高前列腺癌成像诊断可靠性.
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