Cardiac pacemakers and implantable cardioverter defibrillators:: In vitro magnetic resonance imaging evaluation at 1.5-Tesla
Cardiac pacemakers and implantable cardioverter defibrillators:: In vitro magnetic resonance imaging evaluation at 1.5-Tesla
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DOI：
10.1080/10976640600897237
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发表时间：
2007-01-01
影响因子：
6.4
通讯作者：
Fieno, David S.
中科院分区：
文献类型：
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作者：
Shellock, Frank G.;Fischer, Laura;Fieno, David S.
目的：评价1.5T磁共振成像(MRI)对当代起搏器和ICD的影响，以确定MRI检查的安全参数。方法：对起搏器(Identity ADX XL DR+5386和Identity ADX DR+5380发生器；1688T/52 cm房室导联)和ICD(Atlas+V-243、EPIC+V-236和EPIC+HF V-350发生器；Riata 1581/65-cm和QuickSite 1056K/75-cm导线；美国加利福尼亚州西尔马市圣裘德医疗中心)进行磁场相互作用评估。使用不同水平的射频功率(SARS)和条件(包括对身体不同区域的扫描)来评估MRI相关的加热。使用9种不同的脉冲序列，在MRI操作之前和之后立即评估设备的功能方面。感应电流是使用定制的系统测量的。结果：磁场相互作用不会对这些起搏器和ICD造成危险。所有“头”和“腰”区域的扫描都导致体温变化。
Rationale and Objectives: To evaluate the effect of Magnetic Resonance Imaging (MRI) performed at 1.5-Tesla on current generation pacemakers and ICDs to identify safe parameters for MRI examinations. Methods: Pacemakers (Identity ADx XL DR+ 5386 and Identity ADx DR + 5380 generators; 1688T/52-cm atrial and ventricular leads) and ICDs (Atlas + V-243, Epic + V-236, and Epic + HF V-350 generators; Riata 1581/65-cm and QuickSite 1056K/75-cm leads; St. Jude Medical, Sylmar, California, USA) were evaluated for magnetic field interactions. MRI-related heating was assessed using various levels of RF power (SARs) and conditions that included scans on different body regions. Functional aspects of the devices were evaluated immediately before and after MRI procedures utilizing nine different pulse sequences. Induced currents were measured using a custom built system. Results: Magnetic field interactions will not create a hazard for these pacemakers and ICDs. All scans of the "head" and "lumbar" regions resulted in temperature changes