{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:3IT3E4JYEJFTXYTWBETN6LRLYL","short_pith_number":"pith:3IT3E4JY","schema_version":"1.0","canonical_sha256":"da27b27138224b3be2760926df2e2bc2d9f3cf442d2c4a78a69ffc775a0a6eee","source":{"kind":"arxiv","id":"2503.02847","version":2},"attestation_state":"computed","paper":{"title":"Comprehensive Analysis of Relative Pressure Estimation Methods Utilizing 4D Flow MRI","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.bio-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Brandon Hardy, Daniel B. Ennis, David A. Nordsletten, David Marlevi, Judith Zimmermann, Julio A. Sotelo, Mia Bonini, Nicholas S. Burris, Vincent Lechner","submitted_at":"2025-03-04T18:21:27Z","abstract_excerpt":"Magnetic resonance imaging (MRI) can estimate three-dimensional (3D) time-resolved relative pressure fields using 4D-flow MRI, thereby providing rich pressure field information. Clinical alternatives include catheterization and Doppler echocardiography, which only provide one-dimensional pressure drops. The accuracy of one-dimensional pressure drops derived from 4D-flow has been explored previously, but additional work is needed to evaluate the accuracy of 3D relative pressure field estimates. This work presents an analysis of three state-of-the-art relative pressure estimators: virtual Work-E"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2503.02847","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-03-04T18:21:27Z","cross_cats_sorted":["physics.bio-ph"],"title_canon_sha256":"a75fb01f1c1cbb3d1df5dfd340144e68d977c73701b84561212a2f6252bdb6aa","abstract_canon_sha256":"8c564e6f07757e855ea8e4fe122cd66add49d594c1b3eed5ae2f01e4dd33b003"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:01:32.494806Z","signature_b64":"2uyuTWkTUU1Ppe+k+P3PsgE4afhGPIsAmE8vHhduObs1DJaVD1VYeoJpfpo+nNYRvH9HHDR4reNbss3lIz+oCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da27b27138224b3be2760926df2e2bc2d9f3cf442d2c4a78a69ffc775a0a6eee","last_reissued_at":"2026-07-05T11:01:32.494334Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:01:32.494334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Comprehensive Analysis of Relative Pressure Estimation Methods Utilizing 4D Flow MRI","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.bio-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Brandon Hardy, Daniel B. Ennis, David A. Nordsletten, David Marlevi, Judith Zimmermann, Julio A. Sotelo, Mia Bonini, Nicholas S. Burris, Vincent Lechner","submitted_at":"2025-03-04T18:21:27Z","abstract_excerpt":"Magnetic resonance imaging (MRI) can estimate three-dimensional (3D) time-resolved relative pressure fields using 4D-flow MRI, thereby providing rich pressure field information. Clinical alternatives include catheterization and Doppler echocardiography, which only provide one-dimensional pressure drops. The accuracy of one-dimensional pressure drops derived from 4D-flow has been explored previously, but additional work is needed to evaluate the accuracy of 3D relative pressure field estimates. This work presents an analysis of three state-of-the-art relative pressure estimators: virtual Work-E"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.02847","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2503.02847/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2503.02847","created_at":"2026-07-05T11:01:32.494393+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.02847v2","created_at":"2026-07-05T11:01:32.494393+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.02847","created_at":"2026-07-05T11:01:32.494393+00:00"},{"alias_kind":"pith_short_12","alias_value":"3IT3E4JYEJFT","created_at":"2026-07-05T11:01:32.494393+00:00"},{"alias_kind":"pith_short_16","alias_value":"3IT3E4JYEJFTXYTW","created_at":"2026-07-05T11:01:32.494393+00:00"},{"alias_kind":"pith_short_8","alias_value":"3IT3E4JY","created_at":"2026-07-05T11:01:32.494393+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL","json":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL.json","graph_json":"https://pith.science/api/pith-number/3IT3E4JYEJFTXYTWBETN6LRLYL/graph.json","events_json":"https://pith.science/api/pith-number/3IT3E4JYEJFTXYTWBETN6LRLYL/events.json","paper":"https://pith.science/paper/3IT3E4JY"},"agent_actions":{"view_html":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL","download_json":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL.json","view_paper":"https://pith.science/paper/3IT3E4JY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.02847&json=true","fetch_graph":"https://pith.science/api/pith-number/3IT3E4JYEJFTXYTWBETN6LRLYL/graph.json","fetch_events":"https://pith.science/api/pith-number/3IT3E4JYEJFTXYTWBETN6LRLYL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL/action/storage_attestation","attest_author":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL/action/author_attestation","sign_citation":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL/action/citation_signature","submit_replication":"https://pith.science/pith/3IT3E4JYEJFTXYTWBETN6LRLYL/action/replication_record"}},"created_at":"2026-07-05T11:01:32.494393+00:00","updated_at":"2026-07-05T11:01:32.494393+00:00"}