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目的:骶尾骨的常规X线检查方法不能够满足临床要求。文中通过与常规X线比较,探讨X线数字断层融合技术在骶尾骨侧位摄影中的应用价值。方法:30例外伤致骶尾骨疼痛的患者均行普通X线平片及断层融合成像。评价2种成像技术所获得的骶尾骨图像质量及骶尾骨异常诊断情况。结果:30例患者中,断层融合成像和普通X线的优质图像率分别为93.3%和53.3%(P=0.000 1)。断层融合成像技术发现10例骶尾骨骨折和(或)脱位的患者中,普通X线平片仅确诊2例,漏诊7例,1例怀疑骨折。结论:X线断层融合成像技术可明显改善骶尾骨侧位影像质量,且价格低廉、辐射剂量低,有望成为骶尾骨外伤患者的首选检查方法。
Objective: The conventional X-ray examination of the sacrococcygeal can not meet the clinical requirements. In this paper, compared with the conventional X-ray, X-ray digital tomography fusion technique in sacralis lateralis photography applications. Methods: Thirty patients with sacrococcygeal pain after trauma were examined by plain radiography and tomographic fusion. Evaluation of two kinds of imaging technology obtained sacral images quality and sacrococcygeal abnormalities diagnosis. Results: Among the 30 patients, the excellent image rates of tomosynthesis and general X-ray were 93.3% and 53.3%, respectively (P = 0.0001). In 10 patients with sacrococcygeal fractures and / or dislocations, tomographic imaging showed that only 2 cases were confirmed by plain radiography, 7 cases were missed, and 1 case was suspected of fracture. Conclusion: X-ray tomography can significantly improve the quality of lateral sacralis crescent image, and its low cost and low radiation dose are expected to be the first choice of sacrococcygeal trauma patients.