Ultra-Low-Field Portable MRI and Extracorporeal Membrane Oxygenation: Preclinical Safety Testing.

ABSTRACT:

Context

Conventional MRI is incompatible with extracorporeal membrane oxygenation (ECMO) cannulas and pumps. Ultra-low-field portable MRI (ULF-pMRI) with 0.064 Tesla may provide a solution, but its safety and compatibility is unknown.

Hypothesis

ULF-pMRI does not cause significant displacement and heating of ECMO cannulas and does not affect ECMO pump function.

Methods and models

ECMO cannulas in various sizes were tested ex vivo using phantom models to assess displacement force and heating according to the American Society for Testing and Materials criteria. ECMO pump function was assessed by pump flow and power consumption. In vivo studies involved five female domestic pigs (20-42 kg) undergoing different ECMO configurations (peripheral and central cannulation) and

SUBMITTER: Kang JK 

PROVIDER: S-EPMC11495706 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature