脊柱手术中的图像质量评估:术内CBCT和术后MDCT的比较
Paulina Cewe1,2, Mikael Skorpil3,4, Alexander Fletcher-Sandersjöö5,6
1Department of Trauma and Musculoskeletal Radiology, ME Trauma Radiology, Karolinska University Hospital, 171 64, Stockholm, Sweden. Paulina.Cewe@ki.se.
Acta neurochirurgica
|March 31, 2025
概括
与术后多探测器CT (MDCT) 相比,手术中形光束CT (CBCT) 在胸脊椎手术中提供更优质的图像质量. 对于椎脊柱的评估,MDCT仍然是必不可少的,这可能会减少辐射暴露和冗余成像.
科学领域:
- 放射学 放射学是一门学科.
- 脊柱外科手术 脊柱外科手术
- 医疗成像医学成像
背景情况:
- 脊柱手术通常需要多种成像方式,导致辐射暴露增加.
- 术内成像旨在提供实时反,并可能减少对术后扫描的需求.
研究的目的:
- 在脊椎外科手术中,比较手术内形光束CT (CBCT) 与术后多探测器CT (MDCT) 的图像质量.
- 确定CBCT是否可以取代MDCT,从而降低辐射剂量并改善工作流程.
主要方法:
- 评估了27名接受脊柱固定手术的患者.
- 从手术内CBCT和术后MDCT的图像被四名神经放射学家独立评估,使用利克特尺度和视觉分级特征 (VGC).
- 使用信号与噪声比率 (SNR) 和对比度与噪声比率 (CNR) 来评估目标图像质量.
主要成果:
- 对于胸脊柱脊柱成像 (AUCvgc = 0.58,p < 0.001) 首选的是CBCT,其SNR和CNR与MDCT相比较.
- 对于宫脊椎成像 (AUCvgc = 0.38,p < 0.004),MDCT是首选的,它提供了更优越和更一致的图像质量.
- 观察者之间的良好协议 (ICC 0.76-0.77) 和适度的观察者内部协议 (ICC 0.60-0.71) 被观察到.
结论:
- 术内CBCT为胸脊椎手术提供了优越的图像质量,有可能取代术后MDCT.
- 术后的MDCT对于精确的椎脊柱评估至关重要,因为它在该区域的图像质量更高.
- 这些发现表明,在脊椎外科手术中,对成像进行量身定制的方法,优化图像质量和减少辐射.
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