16层螺旋CT图像后处理技术在急性颅脑创伤中的诊断价值

The Value of Imaging Post-processing of 16-slice Helical Computed Tomography in Diagnosing the Acute Cerebral Trauma

目的:评估16层螺旋CT图像后处理技术诊断急性颅脑外的临床价值。方法:对104例急性颅脑创伤病人作16层螺旋CT颅脑扫描,对原始轴位图像进行图像后处理,包括回顾性薄层重建、多平面重组;分析急性颅脑创伤的CT影像表现、计算颅脑创伤病变的数量,分别就原始轴位图像、回顾性薄层重建、多平面重组图像进行比较。结果:原始轴位图像难以显示隐匿性的颅脑创伤病灶,回顾性薄层重建及多平面重组发现病灶数量要多于原始轴位图像,但回顾性薄层重建与多平面重组发现病灶的数量无明显差别。结论:就16层螺旋CT检查急性颅脑创伤而言,回顾性薄层重建、多平面重组能够明显提高隐匿性病灶的检出率。

Objective： To evaluate the diagnosis value of imaging post-processing of 16-slice helical computed （tomography（16-slice helical CT）in the cerebral trauma. Methods： 104 cases of acute cerebral trauma were scanned with 16-slice helical CT. All original axial images were post-processed with the methods of retrospective thin-section reconstruction, multi-planar reforming （MPR）. The lesion manifestations of cerebral trauma were analyzed and the number of cerebral trauma lesions was calculated. The abilities in displaying the lesions of cerebral trauma were respectively compared among original axial images, retrospectively thin-section reconstruction, MPR reconstruction. Results： Many occult lesions could not be found in original axial images. In finding the lesions of cerebral trauma, retrospective thin-section processing images was better than primary axial imaging,and MPR was also better than primary axial imaging.But in showing the number of lesions,retrospectively thin-section processing images had no remarkable difference with MPR. Conclusion： For cerebral trauma examing of 16-slice helical computed tomography, both retrospectively thin-section processing of primary axial images and MPR can obviously improve the finding rate of occult lesions.