心脏永久起搏器置入患者接受磁共振检查安全性探讨

Investigation on safety of magnetic resonance imaging on patients with permanent cardiac pacemakers

目的探讨心脏永久起搏器非依赖患者接受磁共振成像(MRI)检查的安全性。方法选择7例起搏器非依赖患者分别行头、腰椎、髂血管和心脏MRI检查。检查前、后对生命体征进行记录,并作统计学分析,随访心电图。结果7例患者检查中无自述不适。6例患者未见心律失常及起搏器感知、起搏功能异常。1例患者检查中(射频脉冲启动时)出现自身缓慢心率,心率55次/分左右,偶见起搏QRS波形,但患者神志清楚,未诉心悸、不适,生命体征正常,在专科医生密切观察及严密心电监护下顺利完成检查。7例患者检查后无自主不适,随访心电图示起搏器功能正常。结论心脏永久起搏器非依赖患者可安全接受MRI检查。

Objective To investigate the safety of magnetic resonance imaging （MRI）on the patients with permanent cardiac pacemakers. Methods Seven patients with permanent cardiac pacemaker（non-dependent） underwent MRI scans of head,lower baek or heart. Continuous monitoring was performed during MRI scan including ECG and the vital signs. To follow up the vital signs be- fore,after scan and 1 week later. ECGs performed before and after MRI scan immediately. Statistical analysis was performed on da- ta. Results Seven patients ecomplained of uncomfort during or after MRI scan. Continuous monitoring was normal in 6 patients, 1 patient develuped slow hearl rale, FTR 55 heals per minute, occasional wide QRS,no palpitation,normal vital signs,finished MRI scan under the monitor of dcctors, All the patients had no complain after MR1, follow up ECGs and the pacemakers function were normal. Conclusion MRI can he safely performed on the patients with permanent cardiac pacemakers（non-dependent）.