数字断层融合技术在舟状骨隐匿性骨折诊断中的应用

摘要

Objective:To discuss the X-ray digital tomosynthesis (Digital Tomosynthesis, DTS) application value in the occult fractures of the scaphoid. Methods: we selected 19 patients in our hospital in 2012 examined by DTS, who were negative or highly suspicious of occult fracture with X-ray examination, and spiral CT (SCT) three-dimensional (3D) reconstructions were applied in seven patients. Results:There were 17 patients with fracture by DTS.7 patients showed fracture by spiral CT(SCT) three-dimensional(3D) reconstructions. Conclusion:Compared with X-ray examination, the image quality of Digital Tomosynthesis (DTS) is higher, which can show occult fracture better. Compared with CT, DTS can show spatial location of bony anatomy more clearly and can obtain more detailed information. With the important extension and supplement of CT and MRI, the distal tomosynthesisis is worth to be generalized for lower radiation, lower price, higher positive rate and high quality of the pictures.%目的：探讨X射线数字断层融合技术(DTS)在舟状骨隐匿性骨折中的应用价值。方法：前瞻性地选择19例数字X射线摄影(DR)舟状骨骨折不明显或怀疑舟状骨骨折的患者行DTS检查。对其中7例患者行CT三维重建，观察对比各种方法的图像质量及诊断结果。结果：19例患者经DTS检查，其中17例可明显显示舟状骨骨折征象，排除2例疑似病例。7例CT三维重建均显示骨折。结论：X射线数字断层融合技术图像质量明显高于DR摄影，可以较好的显示隐匿性骨折；且具有辐射剂量低、价格低廉、图像成像清晰以及诊断准确率较高等优势，其显示的骨骼解剖结构空间位置比CT更直观，能够得到更多骨骼细节信息，是CT、MRI检查的重要延伸和补充，值得推广应用。