{"id":"W2014741599","doi":"10.1148/radiol.2443051785","title":"The Brain in Children: Is Contrast Enhancement Really Needed after Obtaining Normal Unenhanced CT Results?","year":2007,"lang":"en","type":"article","venue":"Radiology","topic":"Radiation Dose and Imaging","field":"Medicine","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"Public Health Ontario; Hospital for Sick Children","funders":"","keywords":"Medicine; Radiology; Predictive value; Contrast (vision); Intravenous contrast; Confidence interval; Nuclear medicine; Computed tomography; Internal medicine","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001298004,0.0001360833,0.0002608695,0.0001263169,0.000100021,0.00001627915,0.0001049874,0.00005964618,0.00007277073],"category_scores_gemma":[0.0003045238,0.0001006865,0.00005950854,0.0002018364,0.0001162607,0.00007031523,0.00002543165,0.000266531,0.0000461313],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001079827,"about_ca_system_score_gemma":0.00008147317,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001276792,"about_ca_topic_score_gemma":0.00007261863,"domain_scores_codex":[0.9984455,0.00008290679,0.0005098956,0.0002678994,0.0001282295,0.000565633],"domain_scores_gemma":[0.9991339,0.0003460629,0.000117095,0.0002777546,0.00003297968,0.00009225226],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.01255501,0.0003741834,0.4360541,0.00003375399,0.0007475783,0.0007329638,0.01160303,0.00008639325,0.08791792,0.001105645,0.09128321,0.3575062],"study_design_scores_gemma":[0.007501807,0.0004758559,0.9320334,0.0000657042,0.00003406672,0.0005714375,0.0006488638,0.0005753259,0.02804757,0.00006520207,0.02973997,0.0002408366],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9785521,0.001035963,0.0009765092,0.01141667,0.000197112,0.0003654392,0.000004912994,0.00003089217,0.007420369],"genre_scores_gemma":[0.9883295,0.0002136612,0.0001721299,0.009732446,0.0003538018,0.00002432231,0.00003447129,0.00001419815,0.001125444],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4959792,"threshold_uncertainty_score":0.4105875,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00599191535833105,"score_gpt":0.2671491104892663,"score_spread":0.2611571951309353,"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."}}