Assessing glymphatic dysfunction using the diffusion tensor image analysis along the perivascular space (DTI-ALPS) index in gliomas and metastases
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View abstract on PubMed
Summary
This summary is machine-generated.The diffusion tensor image analysis along the perivascular space (DTI-ALPS) index reveals significant glymphatic dysfunction in brain tumours. This non-invasive biomarker effectively differentiates low-grade gliomas, high-grade gliomas, and metastases.
Area Of Science
- Neuroimaging
- Oncology
- Biomarker Discovery
Background
- Glymphatic dysfunction is implicated in various neurological conditions.
- Brain tumours can affect the glymphatic system, impacting fluid clearance.
- Non-invasive biomarkers are needed for tumour characterization.
Purpose Of The Study
- To evaluate glymphatic dysfunction using the diffusion tensor image analysis along the perivascular space (DTI-ALPS) index in patients with low-grade gliomas (LGGs), high-grade gliomas (HGGs), and metastases.
- To assess the DTI-ALPS index as a non-invasive biomarker for tumour differentiation.
- To examine the relationship between the DTI-ALPS index and tumour-specific characteristics.
Main Methods
- A retrospective study involving 30 LGGs, 30 HGGs, and 20 metastases patients.
- Calculation of the DTI-ALPS index and measurement of tumour volume and oedema.
- Comparison of DTI-ALPS index across tumour groups and with tumour characteristics.
- Analysis of DTI-ALPS index in relation to IDH1 mutation status.
Main Results
- Significant differences in DTI-ALPS index were observed across LGGs, HGGs, and metastases (p < 0.001).
- HGGs showed the lowest DTI-ALPS index, followed by metastases and LGGs.
- The DTI-ALPS index demonstrated excellent sensitivity and specificity for differentiating LGGs and HGGs.
- IDH1 wild-type gliomas had a significantly lower DTI-ALPS index compared to IDH1 mutant gliomas (p < 0.001).
Conclusions
- The DTI-ALPS index effectively quantifies glymphatic dysfunction in brain tumours.
- This index shows promise as a non-invasive biomarker for differentiating brain tumour types.
- Further research can explore DTI-ALPS index in clinical settings for tumour management.
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