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《Radiologic Practice》 2007-01
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Value of Different MR Pulse Sequences in the Diagnosis of Early Spinal Metastases

WANG Li-xia,KONG Xiang-quan,LIU Ding-xi,et al.Department of Radiology,Xiehe Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430022,P.R.China  
Objective:To study the clinical value of different MR pulse sequences in the diagnosis of spinal metastases.Methods:25 cases with clinically suspected spinal metastases were included in this study,MR pulse sequences including spin echo T_1WI,Turbo spin echo T_2WI,short time inversion recovery (STIR) and gradient echo Me-2D (GRE Me-2D).The ability in demonstrating vertebral body metastases of different pulse sequences was compared.Results:Spinal metastases were revealed in all patients,involving vertebral body (n=73) and appendix (n=55).The number of vertebral body metastatic foci showed on different pulse sequences varied,with SE T_1WI (n=73).TSE T_2WI (n=55),STIR (n=69),GRE Me-2D (n=73).On T_1WI,24 vertebral body metastases showed diffuse abnormal signal intensities,49 metastatic lesions showed focal abnormalities.The margin of focal metastatic lesion within vertebral body as well as the bone trabeculae were clearly displayed on GRE Me-2D.Conclusion:Early spinal metastases can be demonstrated by using the combination of MR pulse sequences including SE T_1WI,TSE T_2WI,STIR and GRE Me-2D.
【CateGory Index】: R738.1
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