目的  探讨磁共振在脊髓亚急性联合变性诊断中的应用价值。方法  回顾性分析14例经临床确诊并行MRI检查的脊髓亚急性联合变性患者的临床及影像资料，所有病例均行矢状位T1WI、FS  T2WI及轴位T2WI序列扫描，其中3例行GD-DTPA增强扫描。结果  14例中7例矢状位FS T2WI序列显示连续条状高信号，其中4例轴位T2WI表现为脊髓后索点状、倒V字形高信号，3例轴位扫描平面不在病灶水平；14例中7例矢状位FS T2WI序列病灶显示不清，轴位T2WI序列表现为脊髓后索的点状高信号；3例增强扫描病灶均无明显强化。结论  磁共振轴位T2WI序列对脊髓亚急性联合变性病灶显示最理想。

Objective To explore the Diagnostic Value of MRI in Subacute Combined Degeneration of the Spinal Cord. Methods Retrospective analysis of clinic and ultrasonic image data of 14 suffers (confirmed by MRI) of Subacute Combined Degeneration of the Spinal Cord. All cases undergo scanning in T1WI、FS T2WI,T2WI, with three cases for GD-DTPA enhanced scanning. Results 7 out of 14 cases show successive stripshaped high signal, among which 4 cases present punctuate reverse V-shaped high signal in posterior funiculus of spinal cord, and other 3 cases for T2WI scanning are not shown in focal zone; 7 out of 14 cases for FS T2WI scanning show no clear sign focal zone yet show point-shaped sigh signal in posterior funiculus of spinal cord; 3 cases for enhanced scanning in focal zone show no obvious high signal. Conclusion MRI T2WI serves as an ideal point for showing focal zone of Subacute Combined Degeneration of the Spinal Cord.