多层螺旋CT MPVR重建对眶骨爆裂性骨折的诊断价值

目的 探讨螺旋CT轴扫与多平面重建(MPVR)对眼眶爆裂性骨折的诊断中的价值. 方法 对43例眼眶爆裂性骨折患者分别进行螺旋轴扫后在进行多平面重建,分析骨折的CT征象,再与常规轴扫的图像对比. 结果 43例眼眶爆裂性骨折中,轴扫 MPVRCT显示直接征象29例,间接征象14例.冠状位重建显示直接征象20例,6例上下走行的骨折显示不清,"泪滴征"8例;横断位扫描显示直接征象23例,8例前后走行的骨折未能显示,"泪滴征"均未显示.其它间接征象在冠状、横断位扫描均可显示. 结论 CT对眼眶爆裂性骨折的诊断价值较大,MPVR冠状位与横断位相互补充,明显提高病变的检出率.

The diagnostic value of multi-slice spiral CTMPVR in orbital blowout fracture

Objective: To evaluate the multi-slice CT MPVR sign of orbital blowout fracture and the diagnosis value of MPVR and axial CT scan. Methods The images were analysed comparat ively after 43 cases of orbital blowout fracture were scanned with axial slice CT scan technique1d And MPVR. Results Direct sign 29cases and indirect sign 14cases in 43 cases. The direct sign was found in 20 cases and "Tear drop" sign in 8 cases with coronal of MPVR, whereas vertical fracture line can't be found in 6 cases; The direct sign was found in 29 cases and no "Tear drop" sign in above cases with axial CT scan, whereas tranverse fracture line can't be found in 8 cases. Conclusions Diagnostic value of multi-slice spiral CTMPVR is indispensable for orbital blowout fracture. the combination of MRVR and axial CT scan can more improve the accuracy of CT diagnosis for orbital blowout fracture.