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声素大小和视野对牙周骨评估的影响使用四个CBCT系统:实验性ex vivo分析

Victória Geisa Brito de Oliveira¹, Polyane Mazucatto Queiroz², Alessandra Rocha Simões³

¹Department of Diagnosis and Surgery, The Institute of Sciences and Technology of São Paulo State University (UNESP), São José dos Campos 12247-014, SP, Brazil.

Tomography (Ann Arbor, Mich.)

|July 25, 2025

概括

在形光束计算机断层扫描 (CBCT) 中,较小的素尺寸和有限的视野 (FOV) 提高了牙周骨水平测量的准确性. 优化的CBCT协议对于精确的牙周评估至关重要.

科学领域:

牙科牙科是指牙科的专业.
放射学放射学是一门学科.
牙周病学牙周病学

背景情况:

精确评估膜骨水平对于牙周诊断和治疗规划至关重要.
形束计算断层扫描 (CBCT) 越来越多地用于牙周成像,但其准确性取决于采集参数.

研究的目的:

评估不同圆束计算断层扫描 (CBCT) 采集协议,特别是声粒大小和视野 (FOV) 如何影响膜骨水平测量的准确性,以进行牙周评估.
为了比较四个不同的CBCT系统在各种采购设置下的性能.

主要方法:

使用四个CBCT系统 (Veraview X800,OP300 Pro,I-CAT下一代,Orthophos XG) 扫描了在水泥结 (CEJ) 处具有放射性不透明标记的ex vivo人类下,具有不同的声量尺寸和FOV.
从CEJ到膜脊的线性测量与现场数字口径测量 (金标准) 进行了比较.
统计分析包括ANOVA和Dunnett的测试来评估测量的准确性.

主要成果:

使用较小的voxel大小和有限的FOV的CBCT协议通常提供了最接近黄金标准的测量.
一些更大的FOV协议具有中间的voxel大小也显示了可比的准确性.
I-CAT系统与实地测量结果的一致性较低,而其他系统根据所选参数可靠执行.

结论:

优化CBCT协议,以更小的声粒大小和减少的FOVs,可以显著提高牙周骨水平测量的准确性.
中间采集协议可以在诊断准确度和辐射剂量之间提供实际平衡,遵守"合理可实现的最低水平" (ALARA) 原则.
为牙周成像量身定制的标准化CBCT采集参数对于可靠的诊断结果至关重要.

关键词:

气泡骨损失是指气泡骨损失的发生.圆束计算机断层扫描技术视野视野视野视野视野视野测量准确度测量的准确度牙周病诊断牙周病诊断沃克塞尔的尺寸是什么

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