1H-MRS磁共振波谱分析在脑干损伤患者伤情及预后评判中的应用

摘要

Objective To explore the role of magnetic resonance spectroscopy in evaluating the severity and prognosis of patients with brain stem injury. Methods A total of 45 patients with brain injury (the study group)and 10 healthy people(the control group)were retrospectively analyzed in Affiliated Anqing Hospital,Anhui Medical University during March 2015 to October 2016 using magnetic resonance spectroscopy.The NAA/Cr,NAA/Cho and Cho/Cr value in brain stem were analyzed. The clinical severity score (GCS) and Glasgow outcome scale (GOS)were also analyzed in our study. Results Compared with the normal group,patients in the study group had lower NAA level, NAA/Cho value but higher Cho/Cr value (P < 0.05). The severer the injury, the more obvious in NAA peak decrease. Cho peak increased and NAA/Cho ratio decreased. NAA/Cho, NAA/Cr and Cho/Cr values in the group with good prognosis were similar to those in the normal control group, but significantly different to the group with poor prognosis (P < 0.05). NAA/Cr, NAA/Cho and Cho/Cr values correlates with GOS in patients with brain stem injury. Conclusions Magnetic resonance spectroscopy can be used to measure the metabolic status of patients with brain stem injury,which is of great significance in the evaluation the severity of brain stem injury and prognosis.%目的 探讨磁共振波谱分析在脑干损伤患者伤情及预后评判中的指导意义.方法 回顾性分析安徽医科大学附属安庆医院2015年3月至2016年10月年收治的脑干损伤患者45例(损伤组)及10例健康正常人群(对照组),采用磁共振波谱分析检测其脑干部位NAA/Cr、NAA/Cho和Cho/Cr值,结合临床伤情(GCS)评分及格拉斯哥预后(GOS)评分分析.结果 与对照组相比,损伤组NAA/Cho和NAA/Cr值降低,Cho/Cr值显著升高,差异有统计学意义(P<0.05);伤情越严重,NAA峰下降、Cho峰上升,NAA/Cho比值下降趋势越明显.预后良好组NAA/Cho、NAA/Cr和Cho/Cr值接近对照组,与预后不良组相比差异有统计学意义(P<0.05).NAA/Cr、NAA/Cho、Cho/Cr值变化同脑干损伤患者GOS间存在相关性.结论 磁共振波谱分析能测定脑干损伤患者的生化代谢情况,在评估脑干损伤伤情及预后判断中有重要意义.