{"id":"W4415943413","doi":"10.32920/30446252.v2","title":"Total attenuation estimation with model-based diffraction factor in Synthetic Transmit Aperture ultrasound imaging","year":2025,"lang":"","type":"preprint","venue":"","topic":"Ultrasound Imaging and Elastography","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Attenuation; Diffraction; Aperture (computer memory); Attenuation coefficient; Scattering; Energy (signal processing)","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001113049,0.0006458373,0.0004472293,0.0005559898,0.0001441772,0.0008898511,0.000545259,0.0007269713,0.0007336844],"category_scores_gemma":[0.005018435,0.000504316,0.0004667337,0.0006025129,0.0005783056,0.001133512,0.0009070215,0.0005569886,0.0004688248],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003792366,"about_ca_system_score_gemma":0.0007014621,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001786217,"about_ca_topic_score_gemma":0.001862425,"domain_scores_codex":[0.9993964,0.0001880621,0.00003465104,0.0001275749,0.0002242036,0.00002902551],"domain_scores_gemma":[0.9990242,0.0004463378,0.0001695664,0.000160518,0.0001707839,0.00002856489],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0003623978,0.0001190019,0.003193192,0.0004586507,0.0001474662,0.0002184986,0.0004093162,0.3815176,0.2360473,0.009375656,0.002076982,0.3660738],"study_design_scores_gemma":[0.00001255706,0.00005616589,0.0009965559,0.00002196907,0.00003278115,0.0002446718,0.00002889818,0.96432,0.03025703,0.002248993,0.001747937,0.00003240638],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.01743137,0.0002742433,0.9814023,0.00006546469,0.00001585828,0.00001393824,0.00003825534,0.0004412557,0.0003173387],"genre_scores_gemma":[0.3356813,0.0009727645,0.6611507,0.0001161716,0.0000415654,0.00007324309,0.0004211944,0.0003480142,0.001195048],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.001786217,"threshold_uncertainty_score":0.005886376,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.008586395626251351,"score_gpt":0.251221371153484,"score_spread":0.2426349755272326,"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."}}