A Multi-institutional Observational Study of CEST Imaging in Low-grade Glioma
Low grade gliomas (LGGs) are malignant, infiltrative and incurable brain tumours that typically present in the younger population. This project proposes to use non-contrast metabolic Saturation Transfer (ST)-MRI to evaluate LGG tumour progression and aims to predict early changes in LGG. Early identification of LGG patients whose tumours will progress will permit early interventions. ST-MRI does not involve any intravenous injection of contrast and which acquires metabolic information not seen by standard MRI.
• Be at least 12 years of age;
• Diagnosed with:
‣ Cohort A (pre-surgical): Suspected LGG (oligodendroglioma or astrocytoma), based on any combination of histological, molecular, radiological, and/or clinical findings; or
⁃ Cohort B (post-surgical): IDH1/2-mutant or IDH-wildtype (WT) low-grade glioma candidate for observation
• No contraindications to MRI;
• eGFR \> 30 ml/min;
• No prior chemotherapy or radiation therapy;
• No need for upfront treatment (surgery, chemotherapy, and/or radiation therapy)
• Followed at either Sunnybrook Health Sciences Centre or at St Michael's Hospital