Distribution of Hyperpolarized Xenon in the Brain Following Sensory Stimulation
Author Information
Author(s): Mazzanti Mary L., Walvick Ronn P., Zhou Xin, Sun Yanping, Shah Niral, Mansour Joey, Gereige Jessica, Albert Mitchell S., Brechbiel Martin W.
Primary Institution: Brigham and Women's Hospital, Harvard Medical School
Hypothesis
HP 129Xe distribution in the brain may follow a pattern similar to brain activity.
Conclusion
The study found that HP 129Xe MRI can detect increased signal in brain areas activated by a pain stimulus.
Supporting Evidence
- HP 129Xe MRI showed increased signal in brain areas activated by a pain stimulus.
- Areas of higher HP 129Xe signal corresponded to those activated by conventional fMRI methods.
- The percent increase in HP 129Xe signal over baseline was 13–28%.
- HP 129Xe MRI may provide an alternative means of measuring brain activity.
Takeaway
This study shows that a special type of MRI using xenon gas can help us see how the brain reacts to pain.
Methodology
The study used hyperpolarized 129Xe MRI to map changes in the brain's signal after a pain stimulus in rats.
Limitations
The study had low spatial and temporal resolution and variability in animal responses.
Participant Demographics
Male Sprague-Dawley rats weighing between 200–250 g.
Statistical Information
P-Value
0.045
Statistical Significance
p=0.045
Digital Object Identifier (DOI)
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