{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9805465","patent":{"patent_number":"US-9805465","title":"Angiographic examination for a vascular system in a body region of interest of a patient","assignee":null,"inventors":[],"filing_date":"2015-01-27T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["G06T","A61B","A61B","A61B","G06T","G06T","G06T","G06T","G16H","A61B","G06T","G06T","G06T","G06T"],"num_claims":20,"abstract":"The embodiments relate to an angiographic examination method for generating a 2D projection image. The method includes: (1) acquiring a volume dataset, (2) reconstructing a 3D volume from the volume dataset, (3) forward-projecting for generating a virtual vessel projection, (4) deriving a binary vessel mask, (5) acquiring at least one current 2D projection image, (6) combining the binary vessel mask with the at least one current 2D projection image to form a current mask, (7) thresholding the current mask to form a current binary mask, (8) back-projecting the current binary mask into the 3D volume to form a mask volume, (9) threshold value segmenting the mask volume in order to generate a final virtual vessel volume, and (10) subtracting a projection of the vessel volume from the current 2D projection images to generate a selective, overlay-free visualization of the body region of interest by selectable parameters."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Angiographic examination for a vascular system in a body region of interest of a patient","description":"The embodiments relate to an angiographic examination method for generating a 2D projection image. The method includes: (1) acquiring a volume dataset, (2) reconstructing a 3D volume from the volume d","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9805465","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9805465","citation_suggestion":"Patentable. \"Angiographic examination for a vascular system in a body region of interest of a patient\" (US-9805465). https://patentable.app/patents/US-9805465","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9805465","json":"https://patentable.app/api/llm-context/US-9805465","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:42:54.322Z"}