对宽带脉冲序列的评估,以抑制心脏植入式电子设备的儿童的图像人工物
Oluyemi Aboyewa1,2, Andrada Popescu3, Simon Lee4
1Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Ill.
宽带MRI序列显著减少了儿童心脏植入式电子设备 (CIED) 引起的图像工件. 这有助于改善儿童患者的图像质量,这些儿童患者使用起器或除器进行心脏评估.
科学领域:
- 心血管成像 - 心血管成像
- 医学物理 医学物理
背景情况:
- 心脏植入式电子设备 (CIED) 可以在MRI扫描中引起显著的图像工件.
- 来自CIED的文物可能会阻碍对心脏功能和组织特征的准确评估,特别是在儿科人群中.
研究的目的:
- 评估宽带晚期加多增强 (LGE) 和 perfusion 脉冲序列在 CIED 的儿科患者中抑制MRI 器件的有效性.
- 在CIEDs的存在下,比较标准和宽带MRI序列之间的文物水平.
主要方法:
- 涉及具有或没有CIED的儿科参与者的前性研究.
- 标准与宽带LGE和 perfusion MRI序列的比较.
- 临床评级人员对定量文物评估和定性图像质量进行分级.
主要成果:
- 与标准LGE相比,宽带LGE在关节下和腹部CIED位置上显著减少了人工物 (P < .001).
- 与标准序列 (61.81%和37.15%) 相比,宽带序列的文物数量显著减少 (14.68%和0%).
- 患有CIED的儿童的宽带输液和LGEMRI显示出高图像质量 (中位数≥4.0).
结论:
- 宽带LGE和 perfusion MRI序列在最小化小儿心脏MRI中CIED诱导的文物方面优于标准序列.
- 这些发现表明宽带MRI技术对于CIEDs的儿科患者的物体减少是有价值的,这使得诊断准确度更高.
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