Servicio de Nefrología, Hospital Álvaro Cunqueiro, Complexo Hospitalario Universitario de Vigo, Vigo, España.
Servicio de Radiodiagnóstico, Hospital Álvaro Cunqueiro, Complexo Hospitalario Universitario de Vigo, Vigo, España.
Nefrologia (Engl Ed). 2021 Jan-Feb;41(1):41-44. doi: 10.1016/j.nefro.2020.05.016. Epub 2020 Sep 24.
The fact that self-locating catheters have a piece of metal at the tip leads to doubt and uncertainty around performing magnetic resonance imaging (MRI) in patients with this type of catheter. We simulated a peritoneum with a weighted catheter to ascertain how the catheter behaved during MRI scans in 1.5T and 3T machines. We also reviewed cases in which MRI had been performed in patients with this type of catheter. In the simulation, the tip of the self-locating peritoneal catheter caused a magnetic susceptibility artefact that made it difficult to see nearby areas, but it proved to be a safe device for MRI. 14 MRI scans were performed in patients with self-locating catheters, none in the abdominal area. There were no complications in the patients or the technique after performing MRI.
自定位导管尖端有一块金属，这导致人们对这类导管患者进行磁共振成像（MRI）检查时产生怀疑和不确定性。我们用带重物的导管模拟了腹膜，以确定这种导管在 1.5T 和 3T 机器中进行 MRI 扫描时的行为。我们还回顾了对这类导管患者进行 MRI 的病例。在模拟中，自定位腹膜导管的尖端会引起磁敏感性伪影，导致附近区域难以观察，但它被证明是 MRI 检查的安全装置。对 14 例带有自定位导管的患者进行了 MRI 检查，均不在腹部。在进行 MRI 后，患者和技术均未出现并发症。
