Simplifying volumes-of-interest (VOIs) definition in quantitative SPECT: Beyond manual definition of 3D whole-organ VOIs

Keyphrases

• Single-photon Emission Computed Tomography (SPECT) 100%
• Three-dimensional (3D) 100%
• Volume-of-interest 100%
• Whole Organ 100%
• Organ Volume 100%
• Activity Concentration 85%
• Region of Interest 57%
• Liver 42%
• Organ Boundary 42%
• Kidney 28%
• Spherical Volume 28%
• Acquisition Time 28%
• Image Intensity 28%
• Noise Level 28%
• Voxel Size 28%
• Patient Data 14%
• Reconstruction Method 14%
• Collimator 14%
• Coefficient of Variation 14%
• Computed Tomography Images 14%
• Organ Function 14%
• Noise Effects 14%
• Monte Carlo Simulation 14%
• Partial Volume Effect 14%
• Projection Data 14%
• Spherical Radius 14%
• Position-dependent 14%
• Activity Measurement 14%
• Small Combination of Slices 14%
• Concentration Estimates 14%
• Response Compensation 14%
• Computed Tomography Reconstruction 14%
• Single Sphere 14%
• Voxel Value 14%
• Detector Response 14%
• Anatomic Region 14%
• Simulation-based 14%
• Pentetreotide 14%
• Non-uniform Image 14%
• Non-uniformity 14%
• Uniformly Distributed 14%
• Noise Bias 14%
• Reconstructed Image 14%
• Slice Method 14%
• Artifact in the Reconstructed Image 14%

Engineering

• Activity Concentration 100%
• Region of Interest 66%
• Acquisition Time 33%
• Image Intensity 33%
• Reconstructed Image 33%
• Noise Level 33%
• Simulated Data 16%
• Projection Data 16%
• Coefficient of Variation 16%
• Nonuniformity 16%
• Partial Volume Effect 16%
• Collimator 16%

Mathematics

• Single Photon 100%
• Voxel 100%
• Spherical Volume 50%
• Reconstructed Image 50%
• Simulated Data 25%
• Monte Carlo 25%
• Nonuniform 25%
• Patient Data 25%