Blake G M, Rea J A, Fogelman I
Department of Nuclear Medicine, Guy's Hospital, London, United Kingdom.
Semin Nucl Med. 1997 Jul;27(3):276-90. doi: 10.1016/s0001-2998(97)80029-3.
Vertebral fractures are one of the most common consequences of osteoporosis. They are usually diagnosed by visual interpretation of lateral radiographs of the lumbar and thoracic spine. Vertebral morphometry, based on measurements of the anterior, middle, and posterior heights of the vertebral bodies from T4 to L4, is a useful adjunct to the visual reading of radiographs. A new generation of dual-energy x-ray absorptiometry (DXA) scanners offers software for acquiring lateral images of the spine and performing vertebral morphometry analysis. Advantages of DXA morphometry include straightforward and reproducible patient positioning, absence of geometrical distortion of the image, low radiation dose, digital acquisition, and simplified, semi-automated scan analysis. The widespread availability of such DXA systems should make the investigation of vertebral fractures more widely accessible.
椎体骨折是骨质疏松症最常见的后果之一。通常通过对腰椎和胸椎侧位X线片的视觉解读来诊断。基于测量T4至L4椎体前、中、后高度的椎体形态测量法，是X线片视觉解读的有用辅助方法。新一代双能X线吸收仪（DXA）扫描仪提供了用于获取脊柱侧位图像和进行椎体形态测量分析的软件。DXA形态测量法的优点包括患者定位简单且可重复、图像无几何失真、辐射剂量低、数字采集以及简化的半自动扫描分析。此类DXA系统的广泛应用应使椎体骨折的检查更容易普及。
