磁共振弥散加权成像对诊断脊柱良恶性病变的临床应用价值

目的探讨磁共振弥散加权成像（diffusion weight imaging,DWI）在诊断脊柱良恶性病变中的应用价值。方法选择42例脊柱良恶性病变患者进行脊柱常规MRI及弥散加权成像,分别测量各组表观弥散系数（a p parentdiffusion coefficient,ADC）、部分测量各项异性（fractional anisotropy,F A）值,并显示其弥散加权纤维束（diffusion weight tracking,DTT）。结果良性病变椎体压缩性骨折与相邻正常骨质比呈稍低信号,而恶性病变的椎体骨折呈略高信号。测得正常椎体ADC值为（0.23±0.05）×10-3mm2/s,恶性病变椎体骨折为（0.82±0.20）×10-3mm2/s,急性良性病变椎体骨折为（1.94±0.20）×10-3mm2/s。结论磁共振弥散加权成像较常规MRI成像能更好显示脊柱良恶性病变,ADC值是检测早期脊柱良恶性病变微观结构的敏感指标。

The clinical value of Diffusion-weighted imaging in the diagnosis of benign and malignant lesions of the spine

Objective To study the value of diffusion-weighted imaging(diffusion weight imaging,DWI) in the diagnosis of benign and malignant lesions in the spinal application.Methods 42 patients with benign and malignant lesions of the spine with normal spinal MRI and diffusion-weighted imaging,in each group were measured apparent diffusion coefficient(apparent diffusion coefficient,ADC),part of the measured anisotropy(fractional anisotropy,FA) values,and display its Diffusion-weighted fiber bundles(diffusion weight t...