There is increasing interest in forecasting postoperative complications using bone density metrics. Vertebral Hounsfield unit measurements obtained from CT scans performed for surgical planning or other purposes, known as opportunistic CTs, have shown promise for their ease of measurement and the ability to target density measurement to a particular region of interest. Concomitant with the rising interest in prognostic bone density measurement use has been the increasing adoption of intraoperative advanced imaging techniques. Despite the interest in both outcome prognostication and intraoperative advanced imaging, there is little information regarding the use of CT-based intraoperative imaging as a means to measure bone density.

中文翻译：

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术中 CT 扫描的亨斯菲尔德单位与术前值相关吗？

人们对使用骨密度指标预测术后并发症越来越感兴趣。从用于手术计划或其他目的的 CT 扫描中获得的椎骨 Hounsfield 单位测量（称为机会性 CT）已显示出其测量简便性以及将密度测量目标定位到特定感兴趣区域的能力的前景。随着人们对预后骨密度测量的兴趣日益浓厚，术中先进成像技术的采用也越来越多。尽管人们对结果预测和术中高级成像都很感兴趣，但关于使用基于 CT 的术中成像作为测量骨密度的手段的信息很少。