biomarker validation
Systematic process of establishing the reliability, reproducibility, and clinical relevance of neuroimaging-derived biomarkers.
Full Definition
Biomarker validation is a rigorous multi-stage process that establishes the analytical validity, clinical validity, and clinical utility of neuroimaging-derived biomarkers. This process involves demonstrating measurement reproducibility, establishing normal ranges, confirming disease-specific changes, and proving clinical applicability. In neuroinformatics, validation typically includes cross-site reliability studies, test-retest assessments, and correlation with established clinical measures or histopathological findings.
Usage
Usage note: Distinguish from 'validation' in statistical contexts; emphasizes regulatory and clinical standards.
In Context
- "The multi-center study focused on biomarker validation across different scanner platforms." — Clinical research protocol
- "Rigorous biomarker validation demonstrated the measure's reliability for disease monitoring." — Regulatory submission document