The Opportunities and Challenges of Developing Imaging Biomarkers to Study Lung Function and Disease
Autor: | Daniel P. Schuster |
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Rok vydání: | 2007 |
Předmět: |
Diagnostic Imaging
Lung Diseases Observer Variation Pulmonary and Respiratory Medicine Clinical Trials as Topic medicine.medical_specialty medicine.diagnostic_test Standardization Imaging biomarker business.industry Reproducibility of Results Magnetic resonance imaging Iterative reconstruction Critical Care and Intensive Care Medicine Respiratory Function Tests Drug development Intensive care medicine Clinical endpoint Humans Medical physics Radiology Molecular imaging business Biomarkers |
Zdroj: | American Journal of Respiratory and Critical Care Medicine. 176:224-230 |
ISSN: | 1535-4970 1073-449X |
Popis: | Recent advances in imaging offer exciting opportunities to develop and validate lung-specific biomarkers as valuable adjuncts to diagnosis, tests of treatment efficacy, and/or treatment monitoring. State-of-the-art structural, functional, and molecular imaging methods allow the lungs to be visualized noninvasively in vivo at submillimeter and subsecond spatial and temporal scales. However, the development and validation of imaging biomarkers present some special challenges, including the following: equipment evaluation, procedure standardization, data regarding reproducibility and replication, interrater variability, the production and measurement of reference standards, sensitivity to interventions or disease progression, intersubject variance, choice of image reconstruction and segmentation algorithms, automated versus observer-dependent image analysis, data acquisition during conditions of standardized lung volume, whether a reliable association can be demonstrated between the imaging biomarker and a clinical endpoint, and whether its use will have a favorable cost-effective impact on drug development or disease management. Establishing such performance characteristics, especially for single investigators at single institutions, can be daunting if not impossible for costly biomarkers such as imaging. Therefore, to take full advantage of the opportunities presented by state-of-the-art imaging methods, new approaches to analytic and clinical validation must be developed in collaboration with industry, foundation, and federal funding agencies. |
Databáze: | OpenAIRE |
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