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目的:比较3种MRI扫描序列在脊柱转移瘤的应用,探讨各种方法的序列设计特点、信号特点及适用性。方法:50例证实为脊柱转移瘤的患者均进行矢状GRET2WI、FSET2WI、STIR序列扫描,并与矢状T1WI图像对照,比较3种序列对椎体、附件骨质破坏,脊髓受压、受侵,椎间盘、椎旁软组织肿块的显示情况。结果:GRET2WI和STIR序列显示脊柱转移瘤椎体、附件骨质破坏较优;FSET2WI显示脊髓受压、受侵的情况较优;软组织肿块的显示基本一致。结论:矢状GRET2WI可作为脊柱转移瘤常规扫描序列的首选,FSET2WI如有脊髓受压、受侵时可作为常规扫描序列;STIR是常规扫描的补充。
OBJECTIVE: To compare the application of three kinds of MRI scan sequences in spinal metastases and discuss the sequence design features, signal characteristics and applicability of various methods. Methods: Fifty patients with metastatic spine were scanned with sagittal GRET2WI, FSET2WI and STIR sequences. Compared with the sagittal T1WI images, the three kinds of sequences were compared for the destruction of vertebral body, appendix bone destruction, spinal cord compression and invasion , Disc, paravertebral soft tissue mass display. Results: The GRET2WI and STIR sequences showed that the vertebral body and accessory components of spine metastasis had better bone destruction. FSET2WI showed that the spinal cord was compressed and invaded. The soft tissue mass showed the same appearance. Conclusion: The sagittal GRET2WI can be used as the first choice of routine scan of spinal metastases. The FSET2WI can be used as a routine scan if subjected to spinal cord compression. STIR is a routine scan.