{"id":"W4409628874","doi":"10.1101/2025.04.18.25326093","title":"Incremental Value of Bi-Ventricular Ejection Fraction (BiVEF) Phenotyping for the Discrimination of Heart Failure Symptoms and Clinical Outcomes: A Cardiovascular Magnetic Resonance Study of 9,437 Patients","year":2025,"lang":"en","type":"preprint","venue":"medRxiv","topic":"Cardiovascular Function and Risk Factors","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary; Health Canada; Libin Cardiovascular Institute of Alberta","funders":"","keywords":"Ejection fraction; Heart failure; Cardiology; Internal medicine; Cardiac magnetic resonance; Medicine; Magnetic resonance imaging; Radiology","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":[0.002190575,0.0004306546,0.000570522,0.0005287142,0.0004860888,0.000988903,0.0006567827,0.0008648722,0.000891873],"category_scores_gemma":[0.004355208,0.0003635244,0.0005955674,0.0005217477,0.0004485458,0.0007257554,0.0008246986,0.001166842,0.0002207362],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002862124,"about_ca_system_score_gemma":0.0004045715,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00241575,"about_ca_topic_score_gemma":0.002813227,"domain_scores_codex":[0.9986765,0.0004946308,0.0001027383,0.0004041493,0.000185279,0.0001367116],"domain_scores_gemma":[0.9969182,0.001131498,0.0006642103,0.0002659039,0.0002717474,0.0007484261],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0003090386,0.00005433667,0.998728,0.000003251326,0.00007768025,0.00006427163,0.00003737711,0.00003884448,0.0001460658,0.000008667796,0.00004588199,0.0004866322],"study_design_scores_gemma":[0.00006004409,0.0003967378,0.9976577,0.00000502522,0.0001023552,0.0003110058,0.0001649771,0.001097098,0.00006943741,0.00003723614,0.00009179621,0.000006666045],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9996312,0.00008180963,0.00005088223,0.00003222172,0.000005358244,0.000004845404,0.0001052434,0.000001313905,0.00008707576],"genre_scores_gemma":[0.9996106,0.00003603931,0.00005666244,0.00002501086,0.00001702519,0.000006174001,0.0002119285,0.000001343634,0.00003526222],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00241575,"threshold_uncertainty_score":0.011585,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0213809917132952,"score_gpt":0.2987157191442399,"score_spread":0.2773347274309447,"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."}}