National Spinal Injuries Centre, Stoke Mandeville Hospital, Buckinghamshire, UK.
Spinal Cord. 2012 Apr;50(4):294-7. doi: 10.1038/sc.2011.135. Epub 2011 Nov 22.
Retrospective review study.
To identify whether it is safe to perform a magnetic resonance imaging (MRI) exam on patients who have a sacral anterior root stimulator (SARS).
Adult patients with spinal cord injury and implanted SARS attending the National Spinal Injuries Centre who have had MRI scans.
Retrospective review between 1989 and 2010. The effect of the MRI scans on the function of the SARS (Finetech-Brindley, UK) was assessed up to 6 months following MRI at 0.2 and 1.5 T.
A total of 18 patients with SARS implants had MRI scans at 0.2 and 1.5 T of the cervical, thoracic and lumbar spine, head, shoulder and pelvis. MRI examinations were abandoned on two occasions in one patient due to radiofrequency interference. One patient's stimulator ceased to function 5 months following MRI; both of these patients showing complications had their MRI examinations at 0.2 T. There were no adverse effects at 1.5 T. In one patient the SARS was removed within 6 months after MRI due to an unrelated medical condition. A total of 17 patients showed no symptoms that required terminating the examination. In all the 11 patients with a complete and functioning implant before MRI at 1.5 T, the SARS was functioning appropriately, and no change in bladder function was reported up to 6 months following MRI.
It is safe to perform an MRI scan on patients with SARS providing the examination is conducted in a 1.5 T system.
回顾性研究。
确定对植入骶前根刺激器（SARS）的患者进行磁共振成像（MRI）检查是否安全。
在国立脊髓损伤中心就诊的患有脊髓损伤并植入 SARS 的成年患者，他们已进行过 MRI 扫描。
在 1989 年至 2010 年期间进行回顾性研究。在 MRI 后 0.2 和 1.5 T 评估 MRI 扫描对 SARS（Finetech-Brindley，英国）功能的影响，直至 6 个月。
共有 18 名植入 SARS 的患者在 0.2 和 1.5 T 进行了颈椎、胸椎和腰椎、头部、肩部和骨盆的 MRI 扫描。由于射频干扰，有一名患者的两次 MRI 检查都被放弃。一名患者的刺激器在 MRI 后 5 个月停止工作；这两名患者均出现并发症，他们的 MRI 检查在 0.2 T 进行。在 1.5 T 时没有不良影响。一名患者在 MRI 后 6 个月内因与无关的医疗状况而移除了 SARS。共有 17 名患者没有因需要终止检查而出现症状。在所有 11 名在 MRI 前 1.5 T 时具有完整且功能正常的植入物的患者中，SARS 功能正常，并且在 MRI 后 6 个月内没有报告膀胱功能的变化。
在 1.5 T 系统中对 SARS 患者进行 MRI 检查是安全的。
