{"id":"W2062855746","doi":"10.1136/bmj.d4277","title":"Sensitivity of computed tomography performed within six hours of onset of headache for diagnosis of subarachnoid haemorrhage: prospective cohort study","year":2011,"lang":"en","type":"article","venue":"BMJ","topic":"Intracranial Aneurysms: Treatment and Complications","field":"Medicine","cited_by":369,"is_retracted":false,"has_abstract":true,"ca_institutions":"Western University; University of Toronto; University of British Columbia; Université Laval; University of Alberta; McMaster University; Queen's University; University of Manitoba; Ottawa Hospital; University of Ottawa","funders":"University of Alberta; Ottawa Hospital Research Institute; London Health Sciences Centre; Canadian Institutes of Health Research; Hamilton Health Sciences","keywords":"Medicine; Subarachnoid hemorrhage; Cerebrospinal fluid; Prospective cohort study; Confidence interval; Radiology; Cohort; Computed tomography angiography; Subarachnoid haemorrhage; Computed tomography; Anesthesia; Surgery; Internal medicine; Aneurysm","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"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":[0.002475746,0.0004664475,0.0005418442,0.001119363,0.0004582461,0.001132784,0.0008608683,0.0008485605,0.001354335],"category_scores_gemma":[0.01322183,0.0006753989,0.0008404448,0.001246955,0.0005659223,0.0007779655,0.0006728336,0.0007758378,0.0002881333],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005105795,"about_ca_system_score_gemma":0.0005760824,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01258773,"about_ca_topic_score_gemma":0.01103808,"domain_scores_codex":[0.9979579,0.0004868644,0.0002119967,0.0005908738,0.0004792153,0.0002730997],"domain_scores_gemma":[0.9900114,0.002746822,0.004351115,0.0008386822,0.001219554,0.0008323459],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001202465,0.00001193421,0.9994817,0.000002986915,0.00005012312,0.00004684806,0.00002058893,0.00001547203,0.00005943616,0.000003455135,0.00002299377,0.0001641688],"study_design_scores_gemma":[0.00002084125,0.0001191017,0.9989491,0.000007023006,0.00005110888,0.0003880485,0.00008785789,0.000255203,0.0000418661,0.000008800014,0.00006390364,0.000007074409],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9992616,0.0001449839,0.00006915156,0.00002154095,0.000007944011,0.00001571138,0.0003017658,0.000002464909,0.0001748061],"genre_scores_gemma":[0.9995182,0.00006270412,0.00006077381,0.00001526144,0.00001035641,0.000008872394,0.0002917466,0.000001776383,0.00003024926],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01258773,"threshold_uncertainty_score":0.02502894,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02918486816060721,"score_gpt":0.2872271942508831,"score_spread":0.2580423260902759,"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."}}