{"id":"W1514379777","doi":"10.1109/nssmic.1992.301028","title":"Two new strategies to reduce the scatter fraction in positron volume imaging","year":2003,"lang":"en","type":"article","venue":"IEEE Conference on Nuclear Science Symposium and Medical Imaging","topic":"Medical Imaging Techniques and Applications","field":"Medicine","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"McGill University; Montreal Neurological Institute and Hospital","funders":"","keywords":"RADIUS; Physics; Optics; Positron; Backscatter (email); Energy (signal processing); Scanner; Field of view; Photon; Range (aeronautics); Image resolution; Compton scattering; Volume (thermodynamics); Scattering; Photon energy; Resolution (logic); Nuclear physics; Computer science; Electron; Materials science; Artificial intelligence","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0008669705,0.001032554,0.000906643,0.001560767,0.0005294248,0.001453945,0.001685946,0.0009790484,0.001988359],"category_scores_gemma":[0.001988363,0.0007241823,0.0006936177,0.0008539004,0.0007389333,0.001966393,0.001468292,0.001306307,0.000828018],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004360132,"about_ca_system_score_gemma":0.0004572989,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004072704,"about_ca_topic_score_gemma":0.0008627817,"domain_scores_codex":[0.9992744,0.0001054335,0.00005196987,0.0001202384,0.0003795128,0.0000683882],"domain_scores_gemma":[0.9984414,0.0007088957,0.0002504681,0.0002937471,0.0002294575,0.00007607898],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0005284297,0.0003305306,0.002082866,0.0005497683,0.0001517395,0.0003099509,0.0003858903,0.007780358,0.2679132,0.02686381,0.003072709,0.6900308],"study_design_scores_gemma":[0.0004894055,0.002651989,0.006632443,0.0001767373,0.0004597325,0.00731668,0.0001668385,0.1322575,0.7365429,0.02103413,0.09186268,0.0004089191],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.02100573,0.002136472,0.9728795,0.0003929826,0.0001459916,0.0001248016,0.00004245585,0.001725248,0.001546775],"genre_scores_gemma":[0.0853717,0.001331841,0.9090928,0.0003871716,0.0002593028,0.0002197852,0.0001231588,0.000411175,0.002803226],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.001988359,"threshold_uncertainty_score":0.0066517,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01941733101781641,"score_gpt":0.3311684790644982,"score_spread":0.3117511480466818,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}