Quantification of PET activation in adipose tissue from non-contrast CT scans - Summary - MDSpire

Quantification of PET activation in adipose tissue from non-contrast CT scans

  • By

  • Carlos Cano-Espinosa

  • Michael W. Subrize

  • Elisa Franquet

  • Aaron M. Cypess

  • Gerald Kolodny

  • George R. Washko

  • Raúl San José Estépar

  • February 5, 2026

  • 0 min

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Objective:

To develop a deep learning model for estimating regional metabolic activity in adipose tissue using standard non-contrast CT imaging, providing a PET-like assessment without the use of radiotracers, which could enhance large-scale screening efforts.

Key Findings:
  • The deep learning model provides a radiation-sparing alternative for assessing adipose metabolic activity, which could improve patient safety.
  • Predicted metabolic activity aligns closely with traditional PET imaging results, indicating reliability.
  • The method is suitable for clinical and research applications, facilitating population-based studies and potentially influencing treatment strategies.
Interpretation:

This study presents a novel approach to assess brown adipose tissue activity using non-invasive CT imaging, potentially transforming how metabolic health is evaluated in large populations by providing accessible and cost-effective insights.

Limitations:
  • The first dataset used is not publicly available due to institutional policies, limiting reproducibility.
  • The study's findings may not be generalizable beyond the specific cohorts used for training and validation; future research should aim to include diverse populations.
Conclusion:

The proposed method enhances the assessment of adipose tissue metabolic activity, supporting broader research and clinical applications without the drawbacks of traditional PET imaging.

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