目的：探讨多层螺旋CT（MSCT）联合后处理重建技术在创伤性胸骨骨折中的应用价值。方法对36例胸骨骨折患者行常规胸部容积扫描后，利用工作站对胸骨进行多平面重建（MPR）和容积再现法（VR）重组，由两位有经验的放射科医师对后处理图像进行观察，并与胸部X线片进行比较。结果36例中，胸骨体骨折28例，胸骨柄骨折7例，剑突骨折1例。 X线片诊断胸骨骨折24例，漏诊12例，检出率为66.7%；MSCT联合MPR、VR后处理重建显示所有骨折，检出率100.0%，MSCT对胸骨骨折的检出率明显优于X线片（字2=14.40，P<0.05）。结论MSCT容积扫描联合MPR、VR重建能高效、准确、全面显示胸骨骨折的部位、类型和伴发损伤，对胸骨骨折的诊断及治疗方案的制定具有重要的指导意义，可作为胸骨骨折的首选检查方法。%Objective To evaluate the value of multi-slice CT (MSCT) and post-processing techniques in the diagnosis of sternal fractures. Methods MSCT volumetric scanning was performed in 36 patients with sternal fractures, multi-pla-nar reconstruction(MPR) and volume rendering(VR) were reconstructed at workstation, CT findings of injured sternal were analyzed comparatively with that of radiography by two experienced radiologists. Results There were sternal body fracture in 28 cases, manubrium fracture in 7 cases and xyphoid process fracture in 1 case. 24 cases were diagnosed definitely and 12 cases were missed by radiography, the diagnosis rate of radiography was 66.7%, the diagnosis rate of MSCT technology combined with post-processing of MPR, VR images was 100.0%, there was significant difference in the diagnosis rate of MSCT technology than that of radiography (字2=14.40, P<0.05). Conclusion MSCT vol-umetric scanning combined with post-processing of MPR, VR images not only can show the location and type of ster-nal fractures but also can show other associated injuries, it has an important value in diagnosis and treatment of sternal fractures and should be the modality of choice for diagnosis of sternal fractures.
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