{"id":"W2003831894","doi":"10.1118/1.4908015","title":"Patient position alters attenuation effects in multipinhole cardiac SPECT","year":2015,"lang":"en","type":"article","venue":"Medical Physics","topic":"Medical Imaging Techniques and Applications","field":"Medicine","cited_by":16,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Ottawa","funders":"Natural Sciences and Engineering Research Council of Canada; Heart and Stroke Foundation of Canada","keywords":"Imaging phantom; Attenuation; Collimator; Correction for attenuation; Nuclear medicine; Physics; Cardiac imaging; Spect imaging; Sensitivity (control systems); Computer science; Optics; Medicine; Radiology; Engineering","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002557203,0.00009637407,0.0002154925,0.00003457731,0.00002150498,0.000007146851,0.00005737324,0.00006559934,0.0000164123],"category_scores_gemma":[0.0003862366,0.00008102716,0.00006160459,0.0002158468,0.00008701061,0.00004956302,0.00004000179,0.0002802942,0.0000758834],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001388744,"about_ca_system_score_gemma":0.0001221706,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00008355375,"about_ca_topic_score_gemma":0.000001207257,"domain_scores_codex":[0.9987035,0.00004943953,0.000199127,0.0001947365,0.0006730242,0.0001802045],"domain_scores_gemma":[0.9992084,0.00007243759,0.00004367032,0.0002195598,0.00005831855,0.0003976144],"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":[0.0001695245,0.002765944,0.04535514,0.0003707505,0.00008471872,0.0003846898,0.00194864,0.00002366189,0.01088218,0.005041676,0.1881346,0.7448385],"study_design_scores_gemma":[0.02702595,0.005649941,0.1257789,0.007774975,0.0008780006,0.0002438195,0.0007719056,0.1365109,0.4840238,0.09422568,0.1143419,0.00277422],"study_design_candidate":"design_other","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.885643,0.0001316542,0.0885714,0.02042068,0.0004088359,0.001211129,0.000006696735,0.0002732359,0.003333391],"genre_scores_gemma":[0.9948109,0.00001569316,0.0023555,0.002168328,0.00038334,0.0001097208,0.0001129258,0.00001495169,0.000028603],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.7420643,"threshold_uncertainty_score":0.3304192,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01915402047492313,"score_gpt":0.3088503974178063,"score_spread":0.2896963769428832,"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."}}