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深度学习辅助的CBCT细分为下缺陷提供了可靠的体积评估,与微型CT相比,用于3D打印和手术规划

Mohsen Shalalvand¹, Sina Haghanifar², Ehsan Moudi³

¹Student Research Committee, Babol University of Medical Sciences, Babol, Iran.

Scientific reports

|October 29, 2025

概括

圆束计算断层扫描 (CBCT) 准确评估骨缺陷体积,可与微型CT相比较. 较小的voxel大小 (0.1毫米) 提高了准确性,这对于精确的外科计划和牙科3D建模至关重要.

科学领域:

生物医学成像技术生物医学成像技术
牙科技术牙科技术
放射学放射学是一门学科.

背景情况:

精确的体积测量对骨内病变的评估对于临床应用,如手术规划和治疗监测至关重要.
圆束计算断层扫描 (CBCT) 越来越多地用于数字牙科,但其体积准确性需要彻底调查.
关于影响骨缺陷CBCT体积精度的因素的研究有限.

研究的目的:

调查影响人工下骨缺陷CBCT体积精度的因素.
将CBCT测量与微型CT进行比较作为黄金标准.
优化诊断协议和牙科中CBCT的临床应用.

主要方法:

在子下 (前后区域) 中创建了28个人造骨缺陷.
采用0.1mm和0.2mm voxel大小获得的CBCT图像,使用微型CT作为黄金标准.
使用ImageJ (半自动细分) 和Avizo (深度学习细分) 分析图像.

主要成果:

在CBCT体积测量中,与微型CT没有显著差异 (p > 0.05).
与0.1mm (p <0.05) 相比,更大的voxel大小 (0.2mm) 显著低估了缺陷体积.
分段软件和缺陷位置没有显著影响体积精度.

结论:

CBCT是下骨缺陷体积评估的可靠工具,与微型CT有很强的一致性.
使用较小的voxel尺寸 (0.1毫米) 对于在要求精度的应用中最大限度地提高准确性至关重要.
深度学习细分为传统方法提供了有效的替代方案,简化了数字牙科工作流程,而不影响准确性.

关键词:

骨缺陷是一种骨缺陷.圆束计算机断层扫描技术视野视野视野视野视野微型计算机断层扫描 (microcomputed tomography) 是一种微型计算机断层扫描.一个voxel的尺寸.

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