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[P-31 MR spectroscopy of excised pig liver]
1Department of Radiology, Saitama Medical School.
Abstract:
This study used P-31 MR spectroscopy (P-31 MRS) to evaluate the viability of a pig liver preserved with perfusate. Pig liver was excised and preserved in cooled Euro-Collins solution after canulation of the portal vein and perfusion with the solution. P-31 MRS was performed on a 1.5 Tesla machine. P-31 MRS showed that the beta-peak of ATP in the preserved pig liver diminished within two hours. P-31 MRS of pig liver with perfusion of cooled and oxygenated Euro-Collins solution revealed a significant increase in the beta-peak in the pig liver preserved 7 hr compared with that preserved for a longer time. Assessing the beta-peak of ATP by P-31 MRS with cooled and oxygenated Euro-Collins solution is valuable to evaluate the viability of preserved pig liver.
Insights
Phosphorus-31 Magnetic Resonance Spectroscopy (P-31 MRS) assesses pig liver viability. The study found P-31 MRS can evaluate ATP levels in preserved livers, aiding viability assessment.
Area of Science:
- Biomedical Engineering
- Biophysics
- Biochemistry
Context:
- Organ preservation is critical for transplantation.
- Assessing organ viability post-preservation is a significant challenge.
- Current methods for evaluating liver viability are limited.
Purpose:
- To evaluate the viability of preserved pig liver using Phosphorus-31 Magnetic Resonance Spectroscopy (P-31 MRS).
- To assess the changes in Adenosine Triphosphate (ATP) levels during liver preservation.
- To determine the efficacy of cooled and oxygenated Euro-Collins solution in maintaining liver viability.
Summary:
- This study utilized P-31 MRS on a 1.5 Tesla machine to analyze pig livers preserved in cooled Euro-Collins solution.
- A decrease in the beta-peak of Adenosine Triphosphate (ATP) was observed within two hours of preservation.
- Perfusion with cooled and oxygenated Euro-Collins solution led to a significant increase in the ATP beta-peak in livers preserved for 7 hours compared to longer preservation times.
Impact:
- P-31 MRS provides a non-invasive method to assess liver viability.
- The findings suggest that ATP levels, detectable by P-31 MRS, are a reliable indicator of liver preservation quality.
- This technique can potentially improve organ selection for transplantation and reduce post-transplant complications.