Mapping metabolism with a novel imaging technique

Mapping metabolism with a Yale-developed imaging technique
Standard MRI (left) shows where the brain tumor is located, and its size, while DMI (right) reveals how the tumor tissue is processing glucose differently. Credit: Yale University

Yale researchers have developed a new imaging technique that captures detailed information about metabolism, which plays a role in many diseases. The novel yet simple technique, which harnesses existing technology, could potentially be used to evaluate the effectiveness of drug therapies for cancer and other conditions, the researchers said.

Known as deuterium metabolic imaging, or DMI, the technique uses MRI scanning technology to create of how fuels like glucose are metabolized in the brain and other organs. To test the technique, the researchers applied DMI to rats and human subjects that had consumed glucose labeled with deuterium—a nonradioactive or stable isotope of hydrogen. Brain scans revealed distinct differences in the metabolism of glucose in normal tissue versus tumor tissue. The researchers also observed changes in the of animals receiving cancer therapy.

The finding demonstrates that DMI can reveal a to a drug therapy even before the drug has an impact on tumor size, providing a new tool for drug evaluation, the researchers said. The same robust technique can theoretically be applied to any disease that involves metabolism, such as multiple sclerosis and other neurodegenerative diseases, and is not restricted to the brain but can also image other organs, they noted. With their findings, they hope to take DMI from research environment to the clinic.


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More information: Henk M. De Feyter et al. Deuterium metabolic imaging (DMI) for MRI-based 3D mapping of metabolism in vivo, Science Advances (2018). DOI: 10.1126/sciadv.aat7314
Journal information: Science Advances

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Citation: Mapping metabolism with a novel imaging technique (2018, August 23) retrieved 12 December 2019 from https://medicalxpress.com/news/2018-08-metabolism-imaging-technique.html
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