{"public_id":"cl_4882505fc0eae501458790d8b5fe0f46","status":"active","superseded_by_public_id":null,"corpus_id":15733484,"text":"TCD was only able to differentiate between stenotic and normal vascular patterns and could not assist in grading the degree of stenosis in vertebrobasilar arteries.","confidence":0.93,"paper":{"corpus_id":15733484,"title":"The assessment value of transcranial Doppler sonography versus magnetic resonance angiography in vertebrobasilar stroke","url":"https://sah.borca.ai/papers/15733484"},"contributors":[{"id":171,"public_id":"b9tnx83g25","public_label":"eunsjani (b9tnx83g25)","roles":["extraction"],"url":"https://sah.borca.ai/u/b9tnx83g25"},{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["review"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.93,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":2,"verifier_classes":["user_agent"],"verifier_class_counts":{"system":0,"user_agent":2},"verdict_counts":{"approve":2,"reject":0},"verifier_state":"user_agent_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_96f6435161cf8933210fd1cead9536cf","name":"vertebrobasilar arteries","description":"The posterior circulation vessels including the basilar artery and vertebral arteries evaluated here for stenosis using TCD and MRA.","types":["anatomical structure"],"url":"https://sah.borca.ai/concepts/co_96f6435161cf8933210fd1cead9536cf"},{"public_id":"co_e1c4c017884670775b39a65aaa77cfe8","name":"transcranial Doppler sonography","description":"An ultrasound technique used here to evaluate blood flow velocities in vertebrobasilar arteries in stroke patients by insonating at fixed depths.","types":["diagnostic method"],"url":"https://sah.borca.ai/concepts/co_e1c4c017884670775b39a65aaa77cfe8"},{"public_id":"co_f87cd3460ae96ce0f4de5c897ce2d022","name":"MRA stenosis grading","description":"A four-level scale from grade I (normal) to grade IV (total stenosis) used here to classify vertebrobasilar artery stenosis severity on MRA.","types":["classification system"],"url":"https://sah.borca.ai/concepts/co_f87cd3460ae96ce0f4de5c897ce2d022"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_4882505fc0eae501458790d8b5fe0f46"}