{"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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006915168,0.0005147255,0.0002697177,0.0002631638,0.0001154135,0.0005893964,0.000371332,0.0005183161,0.001329925],"category_scores_gemma":[0.003002961,0.000453686,0.0003369342,0.0002438768,0.0003033546,0.0003973398,0.0003504865,0.00026322,0.0003033972],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003824725,"about_ca_system_score_gemma":0.0003067416,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0007456445,"about_ca_topic_score_gemma":0.0006663222,"domain_scores_codex":[0.9995987,0.0002350709,0.00001322082,0.00004070815,0.00008409014,0.00002821662],"domain_scores_gemma":[0.9989036,0.0007743779,0.0001838271,0.00006112186,0.00004927325,0.00002766041],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.003593286,0.0004345033,0.07217811,0.0006251234,0.0002964087,0.00522116,0.0009614642,0.2466475,0.613982,0.0007286631,0.000657925,0.05467384],"study_design_scores_gemma":[0.0006610326,0.008066841,0.2597008,0.0001695845,0.0009724137,0.01523666,0.0005475605,0.3560679,0.3516459,0.001563466,0.005154978,0.0002128608],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9783238,0.0005296303,0.01983435,0.00007708254,0.00001212675,0.00003171527,0.00007451465,0.0001944032,0.0009223426],"genre_scores_gemma":[0.9971266,0.0001992799,0.002273018,0.00002746275,0.000003380726,0.00001031118,0.00008559365,0.00005547966,0.000218975],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001329925,"threshold_uncertainty_score":0.004449069,"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."}}