64排螺旋CT对腰椎间盘病变的诊断价值

摘要

目的:探讨腰椎间盘病变在64排螺旋CT三维及多平面重建的影像学特征,提高腰椎间盘病变的诊断率.方法:对79例腰椎间盘病变部位行64排CT螺旋扫描(其中14例先行椎管造影),并进行三维重建、矢状重建及轴位重建.结果:对腰椎、骶椎共79例病变部位行矢状重建,其中腰间盘膨出31例,腰间盘突出44例,正常4例.64排螺旋CT三维重建的影像学特征为立体显示腰椎的整体形态;矢状重建的影像学特征为类似MR的图像,纵向显示脊椎的排列情况及椎管的整体形态,造影后矢状图像可以清晰地显示脊髓情况.结论:64排螺旋CT能提供三维立体图像及类似MR的腰椎图像,对腰椎间盘病变的诊断具有重要价值.%Objective: To discuss the image features of lumbar disc lesions by threedimensional and multiplanar reconstruction using the 64-slices SCT to improve the rate of diagnosis in Iumbar disc lesions. Methods: For each part of the 79 lumbar disc lesions, spiral scanning was performed by 64-slices SCT; then three-dimensional and sagittal reconstruction and transversal reconstruction were performed. 14 of the 79 patients had received computed myelography (CTM) before the spiral CT scanning. Results: The sagittal reconstruction was performed with all the the 79 lumbar disc lesions of lumbar vertebrae and rumpbone vertebrae. There were 31 cases of lumbar disc bulging. There were 44 cases of lumbar disc extrusion. There were four cases of normal spine. The imaging displayed the form of spinal solid. The imaging characteristics of sagittal reconstruction were similar to those by MR. The form of spine and the form of spinal canal were displayed in sagdtal The spinal cord was displayed in focus by sagittal images after CTM. Conclusion:The sagittal reconstruction by 64-slices SCT has great value in diagnosis of spine lesions since it can provide images similar to those by MR.