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Fast and Quantitative T1ρ-weighted Dynamic Glucose Enhanced MRI
Patrick Schuenke1, Daniel Paech2, Christina Koehler2
1German Cancer Research Center (DKFZ), Division of Medical Physics in Radiology, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.
Scientific Reports
|February 8, 2017
Summary
This study introduces a fast, quantitative dynamic glucose-enhanced MRI (DGE-MRI) technique. It effectively visualizes tumor glucose uptake and metabolism, aiding in cancer diagnosis and treatment monitoring.
Area of Science:
- Biomedical Imaging
- Magnetic Resonance Imaging
- Oncology
Background:
- Conventional medical imaging relies on chemically labeled contrast agents (e.g., radioisotopes, iodine, paramagnetic metals) to visualize tumor microenvironments.
- Natural D-glucose has emerged as a nontoxic, biodegradable contrast agent for Chemical Exchange sensitive Spin-Lock (CESL) MRI, enabling detection of tumor glucose uptake and metabolism.
Observation:
- A novel, robust, and quantitative T1ρ-weighted technique for dynamic glucose-enhanced MRI (DGE-MRI) was developed.
- This technique achieves a temporal resolution under 7 seconds, addressing clinical needs for speed and practicality.
Findings:
- Application in a brain tumor patient demonstrated distinct DGE contrast between tumor and healthy tissue.
- The technique successfully visualized the detailed dynamics of glucose enhancement post-intravenous injection.
Implications:
- This fast and quantitative DGE-MRI technique facilitates detailed analysis of glucose enhancement correlations.
- It holds potential for non-invasive diagnosis, staging, and monitoring of tumor response to therapy.
