Bridge Hospital, HUS, Haartmaninkatu 4, 00029, Helsinki, Finland.
Department of Radiology, Helsinki Medical Imaging Center, Helsinki University Hospital and University of Helsinki, 00029, Helsinki, Finland.
BMC Med Imaging. 2023 Sep 14;23(1):125. doi: 10.1186/s12880-023-01093-4.
The purpose of this study was to determine whether radiological measurements of radial fracture position made in cone beam computed tomography (CBCT) projection images are comparable to those made on traditional radiographs and could potentially substitute them.
Sixteen patients with fractures of the distal radius referred for radiographs were recruited for an additional CBCT scan which was performed immediately afterwards. Projection images and volumetric data were saved from the CBCT scans. Measurements of ulnar variance, radial inclination and volar tilt were made from all three sets of images.
Agreement of projection image based measurements with radiographs was nearly as good as as the agreement of cross sectional image measurements with radiographs. The average difference between the results for projection images and radiographs were -1.2 mm (SD 1.9 mm), for radial inclination 0.7° (SD 2.9°) and for volar tilt 1.9° (SD 5.6°).
Differences between radiological measurements between the modalities studied are small and projection images could be used for the assessment of distal radial fractures.
本研究旨在确定在锥形束计算机断层扫描（CBCT）投影图像中进行的桡骨骨折位置的放射学测量是否与传统射线照相术的测量结果相当，并且是否可以替代传统射线照相术。
招募了 16 名因桡骨远端骨折而接受射线照相检查的患者，进行了额外的 CBCT 扫描，随后立即进行了该扫描。从 CBCT 扫描中保存了投影图像和容积数据。从所有三组图像中测量了尺侧偏移量、桡骨倾斜度和掌倾角。
基于投影图像的测量与射线照相术的一致性几乎与横截面图像测量与射线照相术的一致性一样好。投影图像和射线照相术之间的结果的平均差异为-1.2 毫米（SD 1.9 毫米），对于桡骨倾斜度为 0.7°（SD 2.9°），对于掌倾角为 1.9°（SD 5.6°）。
研究中两种模式之间的放射学测量差异较小，投影图像可用于评估桡骨远端骨折。
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