多层螺旋CT多平面重组和容积再现技术在肋骨骨折诊断中的局限性  

The diagnostic limitation of multi-slice spiral CT multiplanar reconstruction and volume rendering on rib fracture

作　　者：张水平[1] 

机构地区：[1]江苏省扬中市人民医院影像科,212200

出　　处：《实用医学影像杂志》2017年第1期61-62,共2页Journal of Practical Medical Imaging

摘　　要：目的探讨多层螺旋CT(MSCT)多平面重组(MPR)和容积再现(VR)技术在肋骨骨折诊断中的局限性。方法 179例肋骨骨折患者,具有完整的MPR、VR、薄层原始图像和肋骨骨折的曲面重建(CPR)图像资料,比较MPR和VR技术,与薄层原始图像和CPR技术在肋骨骨折诊断中的准确率。结果 179例患者经薄层原始图像和CPR技术分析发现476根肋骨骨折,MPR和VR技术发现肋骨骨折83例,准确率为46.4%,漏诊96例,漏诊率为53.6%;发现肋骨骨折332根,准确率为69.8%,漏诊率为30.2%。结论 MSCT的MPR和VR技术在肋骨骨折诊断中存在较大的局限性,必须结合薄层原始图像和CPR技术仔细分析才能避免漏诊,提高诊断准确率。Objective To evaluate the diagnostic limitation of multi-slice spiral CT（MSCT）multiplanar reconstruction（MPR）and Volume Rendering（VR） on rib fracture. Methods The CT images of 179 patients with rib fractures, included the complete MPR、VR、 thin original image and CPR. Compare rib fracture accuracy of MPR, VR technology, the thin original image and CPR technique. Results Of 179 patients by the thin original image and CPR technique analysis had 476 rib fractures, by MPR and VR technology 83 patients had rib fractures, with accuracy rate of 46.4%, 96 patients were missed, with the missed diagnosis rate of 53.6%; 332 rib fractures were found by MPR and VR technology, with accuracy rate of 69.8%, the missed diagnosis rate was 30.2%. Conclusion MPR and VR techniques of MSCT for diagnosis of rib fracture exists larger limitations, the must be combined with the thin original im-age and CPR technique with careful analyze to avoid missed diagnosis, improve the diagnostic accuracy.

关 键 词：体层摄影术 螺旋计算机 肋骨骨折 后处理技术 

分 类 号：R683[医药卫生—骨科学] R816.8[医药卫生—外科学]