图像质量和全关节整形术中的金属工件减少CT:基于深度学习的算法与虚拟单能成像和骨科金属工件减少相比
Mark Selles1,2,3, Ruud H H Wellenberg4,5, Derk J Slotman6
1Department of Radiology, Isala, 8025 AB, Zwolle, the Netherlands. m.selles@isala.nl.
European radiology experimental
|March 14, 2024
概括
基于深度学习的金属工件减少 (DL-MAR) 显著改善了全关节整形术患者的计算机断层扫描 (CT) 图像质量和诊断信心. 与传统CT和其他方法相比,DL-MAR提供了优越的金属工件减少.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 人工智能在医学中的应用
背景情况:
- 来自关节整形术 (THA) 的金属文物显著降低了计算机断层扫描 (CT) 图像质量.
- 对THA患者进行准确的放射性评估对于临床决策至关重要.
- 现有的金属工件减少技术存在局限性.
研究的目的:
- 为了比较基于深度学习的金属工件减少 (DL-MAR) 与传统CT和骨科金属工件减少 (O-MAR) 技术的有效性.
- 为了评估图像质量,金属文物严重性和THA患者的诊断信心.
- 评估不同降噪方法的对比度与噪声比率 (CNR).
主要方法:
- 从28名单边THA患者的CT图像重建使用常规CT图像,130-keV单能图像与O-MAR和没有O-MAR,以及DL-MAR.
- 由两个肌肉骨放射科医生共同评分图像质量,金属文物和诊断信心.
- 测量相关解剖结构 (如膀/脂肪,肌肉/脂肪) 之间的CNR.
主要成果:
- 与没有O-MAR的图像相比,DL-MAR和O-MAR显著减少了金属文物,改善了图像质量和诊断信心 (p < 0.001).
- 与传统CT和130-keV单能图像相比,DL-MAR在图像质量,诊断信心和文物减少 (p ≤0.014) 方面表现优于O-MAR.
- DL-MAR和O-MAR的CNR比没有O-MAR的图像高 (p < 0.001),DL-MAR显示的CNR高于传统和O-MAR增强图像 (p ≤ 0.010).
结论:
- 与传统CT和O-MAR相比,DL-MAR在单边THA患者中提供了优越的图像质量,诊断信心和金属工件减少.
- 基于DL的金属工件减少显示出在骨科成像中临床实施的重大前景.
- DL-MAR通过有效地减轻假肢植入物中的工件来增强放射性评估.
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