Volumetric multiphase ventilation imaging based on four-dimensional computed tomography for functional lung avoidance radiotherapy

Keyphrases

• Ventilation 100%
• Radiotherapy 100%
• Four-dimensional Computed Tomography 100%
• End-expiration 100%
• Ventilation Imaging 100%
• Functional Lung 100%
• Respiration 75%
• Lung 50%
• Computed Tomography 50%
• CT Ventilation Imaging 50%
• Spatiotemporal Heterogeneity 50%
• Ventilation Process 50%
• Local Expansion 50%
• Voxel-wise 50%
• Imaging Techniques 25%
• Spearman Correlation Coefficient 25%
• Cancer Patients 25%
• Cross-modal 25%
• Phase Image 25%
• Quantitative Evaluation 25%
• Image Registration 25%
• Jacobian 25%
• Total Variation 25%
• Qualitative Evaluation 25%
• Esophageal Cancer 25%
• Lung Cancer 25%
• Breathing Cycle 25%
• 4DCT 25%
• Spearman Correlation 25%
• Lung Region 25%
• Lung Function 25%
• Public Dataset 25%
• Phase-specific 25%
• Expansion Ratio 25%
• Breathing Phases 25%
• Quantitative Phase 25%
• Lung Ventilation 25%
• Free-breathing 25%
• CT-based 25%
• Conventional CT 25%
• Additional Phase 25%
• Deformation Vector Field 25%
• Distribution Difference 25%
• Contraction Pattern 25%
• Ventilation Distribution 25%
• Correlated Information 25%
• Phase-resolved 25%
• Phase Coordinates 25%
• Mask-free 25%
• Image Quality Metrics 25%
• Formulation Method 25%

Engineering

• Radiotherapy 100%
• Breathing 100%
• Jacobian 33%
• Temporal Information 33%
• Expansion Ratio 33%
• Relative Phase 33%
• Metrics 33%
• Phase Image 33%
• Quantitative Evaluation 33%
• Phase Coordinate 33%
• Vector Field 33%
• Total Variation 33%