【摘要】 目的探讨正常人股骨近端1H磁共振波谱(1H-MRS)的特点。方法选取60例正常体检者行1H-MRS检查,以每10岁为年龄均隔分为4组,分别比较各感兴趣区(ROI)间脂肪分数(FF)、脂水峰比(LWR)和基线宽度(LW)值,并与年龄作相关分析。结果 (1)组间各ROI的FF及LWR差异均有统计学意义(均P<0.01),而各ROI脂峰LW和水峰LW差异无统计学意义(均P>0.05)。(2)各ROI的FF和LWR均与年龄呈正相关,而水峰LW均与年龄呈负相关(均P<0.01)。结论1H-MRS能很好地评价股骨近端的骨髓状况,正常人股骨近端的脂肪含量随年龄增长而增多。更多还原

【Abstract】 Objective To investigate the characteristics of 1H Proton MR Spectroscopy(1H-MRS) of normal proximal femur.Methods The 1H-MRS of left proximal femurs of 60 health volunteers were carried out.In all subjects,comparisons had been made in fat fraction(FF),1ipid water ratio(LWR) and 1ine width(LW) among the region of interest(ROI).Results There were significant differences among the ROIs in FF and LWR(P < 0.01),while no significant difference was revealed in lipid peak LW and water peak LW(P > 0.05).The age was significantly positively correlated with FF and LWR among the ROIs,while negatively correlated with water peak LW(all P < 0.01).Conclusion 1H-MRS is effective in evaluating the proximal femoral marrow content;and marrow fat content in normal proximal femur increases with aging.更多还原