Detecting Brain Injury in Piglets Using MRI
Author Information
Author(s): Berit Holthe Munkeby, de Lange C, Emblem K E, Bjørnerud A, Kro G A B, Andresen J, Winther-Larssen E H, Løberg E M, Hald J K
Primary Institution: Rikshospitalet University Hospital, Oslo, Norway
Hypothesis
Can a combined MRI protocol detect pathological findings in a piglet model after hypoxic-ischemic injury?
Conclusion
MRI and MRS can effectively detect hypoxic-ischemic brain injury in piglets 7 hours after the event.
Supporting Evidence
- ADC values were significantly lower after 7 hours compared to baseline.
- Presence of lactate correlated with necrosis in the piglet brains.
- Histology showed more than 90% necrosis in eight piglets after hypoxia.
- FA values increased significantly after 7 hours compared to baseline.
- NAA/Cho and NAA/Cr ratios were significantly lower after 7 hours.
- Lac/Cho and Lac/NAA ratios were significantly higher after 7 hours.
- All piglets showed signs of cerebral pathology after the HI insult.
Takeaway
Researchers used piglets to see if special brain scans could find damage after a lack of oxygen. They found that the scans worked well.
Methodology
Ten piglets underwent hypoxia for 30 minutes followed by 7 hours of reoxygenation, with MRI and MRS performed before and after the event.
Limitations
The study does not allow for long-term follow-up and the age variation of the piglets may affect results.
Participant Demographics
Ten newborn piglets, 5 male and 5 female, aged 12–36 hours.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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