Debnam J Matthew, Ketonen Leena, Guha-Thakurta Nandita
Section of Neuroradiology, Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 370, Houston, TX 77030, USA.
ISRN Orthop. 2012 Oct 4;2012:639189. doi: 10.5402/2012/639189. eCollection 2012.
Background. Abnormal spinal curvature is routinely assessed with plain radiographs, MDCT, and MRI. MDCT can provide two-dimensional (2-D) orthogonal as well as reconstructed three-dimensional volume-rendered (3-D VR) images of the spine, including the translucent display: a computer-generated image set that enables the visualization of surgical instrumentation through bony structures. We hypothesized that the 3-D VR series provides additional information beyond that of 2-D orthogonal MDCT in the evaluation of abnormal spinal curvature in patients evaluated at a major cancer center. Methods. The 3-D VR series, including the translucent display, was compared to 2-D orthogonal MDCT studies in patients with an abnormal spinal curvature greater than 25 degrees and scored as being not helpful (0) or helpful (1) in 3 categories: spinal curvature; bony definition; additional findings (mass lesions, fractures, and instrumentation). Results. In 38 of 48 (79.2%) patients assessed, the 3-D VR series were scored as helpful in 63 of 144 (43.8%) total possible categories (32 spinal curvature; 14 bony definition; 17 additional findings). Conclusion. Three-dimensional MDCT images, including the translucent display, are complementary to multiplanar 2-D orthogonal MCDT in the evaluation of abnormal spinal curvature in patients treated at a major cancer center.
背景。脊柱异常弯曲通常通过普通X线片、MDCT和MRI进行评估。MDCT可以提供脊柱的二维（2-D）正交图像以及重建的三维容积再现（3-D VR）图像，包括半透明显示：一种计算机生成的图像集，能够透过骨质结构可视化手术器械。我们推测，在一家大型癌症中心接受评估的患者中，3-D VR系列在评估脊柱异常弯曲方面提供了超越二维正交MDCT的额外信息。方法。将包括半透明显示的3-D VR系列与脊柱弯曲大于25度的患者的二维正交MDCT研究进行比较，并在以下3个类别中评为无用（0）或有用（1）：脊柱弯曲；骨质清晰度；额外发现（肿块病变、骨折和器械）。结果。在评估的48例患者中的38例（79.2%）中，3-D VR系列在总共144个可能类别中的63个（43.8%）中被评为有用（32个脊柱弯曲；14个骨质清晰度；17个额外发现）。结论。包括半透明显示在内的三维MDCT图像在一家大型癌症中心治疗的患者评估脊柱异常弯曲方面是对多平面二维正交MDCT的补充。
