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Magnetic resonance imaging during warm ex vivo kidney perfusion

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  • Rianne Schutter, University of Groningen
  • ,
  • Otis C van Varsseveld, University of Groningen
  • ,
  • Veerle A Lantinga, University of Groningen
  • ,
  • Merel B F Pool, University of Groningen
  • ,
  • Tim H Hamelink, University of Groningen
  • ,
  • Jan Hendrik Potze, University of Groningen
  • ,
  • Henri G D Leuvenink, University of Groningen
  • ,
  • Christoffer Laustsen
  • Ronald J H Borra, University of Groningen
  • ,
  • Cyril Moers, University of Groningen

BACKGROUND: The shortage of donor organs for transplantation remains a worldwide problem. The utilization of suboptimal deceased donors enlarges the pool of potential organs, yet consequently, clinicians face the difficult decision of whether these sub-optimal organs are of sufficient quality for transplantation. Novel technologies could play a pivotal role in making pre-transplant organ assessment more objective and reliable.

METHODS: Ex vivo normothermic machine perfusion (NMP) at temperatures around 35-37°C allows organ quality assessment in a near-physiological environment. Advanced magnetic resonance imaging (MRI) techniques convey unique information about an organ's structural and functional integrity. The concept of applying magnetic resonance imaging during renal normothermic machine perfusion is novel in both renal and radiological research and we have developed the first MRI-compatible NMP setup for human-sized kidneys.

RESULTS: We were able to obtain a detailed and real-time view of ongoing processes inside renal grafts during ex vivo perfusion. This new technique can visualize structural abnormalities, quantify regional flow distribution, renal metabolism, and local oxygen availability, and track the distribution of ex vivo administered cellular therapy.

CONCLUSION: This platform allows for advanced pre-transplant organ assessment, provides a new realistic tool for studies into renal physiology and metabolism, and may facilitate therapeutic tracing of pharmacological and cellular interventions to an isolated kidney.

Original languageEnglish
JournalArtificial organs
Pages (from-to)105-116
Number of pages12
Publication statusPublished - Jan 2023

    Research areas

  • kidney transplantation, magnetic resonance imaging, renal physiology

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