{"id":"W4312292932","doi":"10.2139/ssrn.4273918","title":"Point-Of-Care Ultrasound with Artificial Intelligence-Assisted Assessment of Left Ventricular Ejection Fraction: A Prospective, Observational Multicentre Study","year":2022,"lang":"en","type":"article","venue":"SSRN Electronic Journal","topic":"Hemodynamic Monitoring and Therapy","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Ottawa","funders":"","keywords":"Observational study; Ejection fraction; Medicine; Ultrasound; Internal medicine; Cardiology; Radiology; Heart failure","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":[0.0008474472,0.0001400393,0.0003051757,0.0001765941,0.0002986043,0.00001440801,0.0001018158,0.00003581178,0.0001329989],"category_scores_gemma":[0.00004392323,0.0001182752,0.0001178853,0.0003873839,0.00003383592,0.00009438026,0.00001844497,0.001431519,6.304529e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002393448,"about_ca_system_score_gemma":0.002113777,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00007321637,"about_ca_topic_score_gemma":0.0001019524,"domain_scores_codex":[0.9977991,0.0001747423,0.0004500645,0.0002133352,0.0007947932,0.0005679908],"domain_scores_gemma":[0.99893,0.00008481414,0.000373358,0.0001679428,0.0003870179,0.00005682611],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.001315714,0.002626813,0.9743486,0.00003756554,0.0009952679,0.00003772993,0.0009538344,0.002011864,0.002298685,0.005707446,0.000002022619,0.009664482],"study_design_scores_gemma":[0.003300445,0.01638425,0.7675288,0.000125409,0.0006187414,0.00300513,0.1959224,0.001953372,0.002064438,0.00862387,0.0001498801,0.0003231991],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9814501,0.0003572275,0.01701178,0.0001212454,0.0002494062,0.0006526911,0.000004899518,0.00002118766,0.0001314131],"genre_scores_gemma":[0.9989318,0.0001006327,0.0005821959,0.000008416171,0.0001944785,0.00002659609,0.00002160952,0.00002110666,0.0001131334],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2068197,"threshold_uncertainty_score":0.6258783,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02359908570830043,"score_gpt":0.3201891390050542,"score_spread":0.2965900532967538,"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."}}