{"id":"https://openalex.org/W2137154368","doi":"https://doi.org/10.1109/isbi.2011.5872639","title":"Extracting geometric features of aortic valve annulus motion from dynamic MRI for guiding interventions","display_name":"Extracting geometric features of aortic valve annulus motion from dynamic MRI for guiding interventions","publication_year":2011,"publication_date":"2011-03-01","ids":{"openalex":"https://openalex.org/W2137154368","doi":"https://doi.org/10.1109/isbi.2011.5872639","mag":"2137154368"},"language":"en","primary_location":{"id":"doi:10.1109/isbi.2011.5872639","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isbi.2011.5872639","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5081271259","display_name":"Nikhil V. Navkar","orcid":"https://orcid.org/0000-0003-1853-1910"},"institutions":[{"id":"https://openalex.org/I44461941","display_name":"University of Houston","ror":"https://ror.org/048sx0r50","country_code":"US","type":"education","lineage":["https://openalex.org/I44461941"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Nikhil V. Navkar","raw_affiliation_strings":["Medical Robotics Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","Computer Graphics and Interactive Media Lab, Department of Computer Science, University of Houston, TX 77004, USA"],"affiliations":[{"raw_affiliation_string":"Medical Robotics Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","institution_ids":["https://openalex.org/I44461941"]},{"raw_affiliation_string":"Computer Graphics and Interactive Media Lab, Department of Computer Science, University of Houston, TX 77004, USA","institution_ids":["https://openalex.org/I44461941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038148857","display_name":"Erol Yeniaras","orcid":null},"institutions":[{"id":"https://openalex.org/I44461941","display_name":"University of Houston","ror":"https://ror.org/048sx0r50","country_code":"US","type":"education","lineage":["https://openalex.org/I44461941"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Erol Yeniaras","raw_affiliation_strings":["Medical Robotics Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","Medical Robotics Lab, Department of Computer Science, University of Houston, TX 77004, USA"],"affiliations":[{"raw_affiliation_string":"Medical Robotics Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","institution_ids":["https://openalex.org/I44461941"]},{"raw_affiliation_string":"Medical Robotics Lab, Department of Computer Science, University of Houston, TX 77004, USA","institution_ids":["https://openalex.org/I44461941"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043965596","display_name":"Dipan J. Shah","orcid":"https://orcid.org/0000-0002-6179-2393"},"institutions":[{"id":"https://openalex.org/I1295876152","display_name":"Houston Methodist","ror":"https://ror.org/027zt9171","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1295876152"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dipan J. Shah","raw_affiliation_strings":["Methodist DeBakey Heart & Vascular Center, Methodist Hospital, Houston, TX, USA","Methodist DeBakey Heart & Vascular Center, Methodist Hospital, Houston, TX 77030, USA"],"affiliations":[{"raw_affiliation_string":"Methodist DeBakey Heart & Vascular Center, Methodist Hospital, Houston, TX, USA","institution_ids":["https://openalex.org/I1295876152"]},{"raw_affiliation_string":"Methodist DeBakey Heart & Vascular Center, Methodist Hospital, Houston, TX 77030, USA","institution_ids":["https://openalex.org/I1295876152"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058953622","display_name":"Nikolaos V. Tsekos","orcid":"https://orcid.org/0000-0002-4327-9895"},"institutions":[{"id":"https://openalex.org/I44461941","display_name":"University of Houston","ror":"https://ror.org/048sx0r50","country_code":"US","type":"education","lineage":["https://openalex.org/I44461941"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Nikolaos V. Tsekos","raw_affiliation_strings":["Medical Robotics Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","Medical Robotics Lab, Department of Computer Science, University of Houston, TX 77004, USA"],"affiliations":[{"raw_affiliation_string":"Medical Robotics Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","institution_ids":["https://openalex.org/I44461941"]},{"raw_affiliation_string":"Medical Robotics Lab, Department of Computer Science, University of Houston, TX 77004, USA","institution_ids":["https://openalex.org/I44461941"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5026683388","display_name":"Zhigang Deng","orcid":"https://orcid.org/0000-0002-0452-8676"},"institutions":[{"id":"https://openalex.org/I44461941","display_name":"University of Houston","ror":"https://ror.org/048sx0r50","country_code":"US","type":"education","lineage":["https://openalex.org/I44461941"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zhigang Deng","raw_affiliation_strings":["Computer Graphics and Interactive Media Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","Computer Graphics and Interactive Media Lab, Department of Computer Science, University of Houston, TX 77004, USA"],"affiliations":[{"raw_affiliation_string":"Computer Graphics and Interactive Media Laboratory, Department of Computer Science, University of Houston, Houston, TX, USA","institution_ids":["https://openalex.org/I44461941"]},{"raw_affiliation_string":"Computer Graphics and Interactive Media Lab, Department of Computer Science, University of Houston, TX 77004, USA","institution_ids":["https://openalex.org/I44461941"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5081271259"],"corresponding_institution_ids":["https://openalex.org/I44461941"],"apc_list":null,"apc_paid":null,"fwci":0.1922,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.62885484,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1302","last_page":"1305"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10172","display_name":"Cardiac Valve Diseases and Treatments","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10172","display_name":"Cardiac Valve Diseases and Treatments","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11551","display_name":"Infective Endocarditis Diagnosis and Management","score":0.9944000244140625,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10618","display_name":"Aortic Disease and Treatment Approaches","score":0.9909999966621399,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/cardiac-skeleton","display_name":"Cardiac skeleton","score":0.8071377873420715},{"id":"https://openalex.org/keywords/magnetic-resonance-imaging","display_name":"Magnetic resonance imaging","score":0.605481743812561},{"id":"https://openalex.org/keywords/aortic-valve","display_name":"Aortic valve","score":0.6004396080970764},{"id":"https://openalex.org/keywords/stenosis","display_name":"Stenosis","score":0.5688074231147766},{"id":"https://openalex.org/keywords/annulus","display_name":"Annulus (botany)","score":0.5064793825149536},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.4792459011077881},{"id":"https://openalex.org/keywords/orientation","display_name":"Orientation (vector space)","score":0.47587862610816956},{"id":"https://openalex.org/keywords/aortic-valve-stenosis","display_name":"Aortic valve stenosis","score":0.4565742313861847},{"id":"https://openalex.org/keywords/aortic-root","display_name":"Aortic root","score":0.43468931317329407},{"id":"https://openalex.org/keywords/radiology","display_name":"Radiology","score":0.40136146545410156},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.361849308013916},{"id":"https://openalex.org/keywords/biomedical-engineering","display_name":"Biomedical engineering","score":0.33814820647239685},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.33537808060646057},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.32459574937820435},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.22970625758171082},{"id":"https://openalex.org/keywords/aortic-valve-replacement","display_name":"Aortic valve replacement","score":0.21090498566627502},{"id":"https://openalex.org/keywords/aorta","display_name":"Aorta","score":0.2088547646999359},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.153432697057724},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.15287038683891296},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.0740586519241333}],"concepts":[{"id":"https://openalex.org/C176752191","wikidata":"https://www.wikidata.org/wiki/Q1474138","display_name":"Cardiac skeleton","level":4,"score":0.8071377873420715},{"id":"https://openalex.org/C143409427","wikidata":"https://www.wikidata.org/wiki/Q161238","display_name":"Magnetic resonance imaging","level":2,"score":0.605481743812561},{"id":"https://openalex.org/C2780714102","wikidata":"https://www.wikidata.org/wiki/Q616071","display_name":"Aortic valve","level":2,"score":0.6004396080970764},{"id":"https://openalex.org/C2780007028","wikidata":"https://www.wikidata.org/wiki/Q2343082","display_name":"Stenosis","level":2,"score":0.5688074231147766},{"id":"https://openalex.org/C150936888","wikidata":"https://www.wikidata.org/wiki/Q4769748","display_name":"Annulus (botany)","level":2,"score":0.5064793825149536},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.4792459011077881},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.47587862610816956},{"id":"https://openalex.org/C2781414266","wikidata":"https://www.wikidata.org/wiki/Q531019","display_name":"Aortic valve stenosis","level":3,"score":0.4565742313861847},{"id":"https://openalex.org/C2993369777","wikidata":"https://www.wikidata.org/wiki/Q2349469","display_name":"Aortic root","level":3,"score":0.43468931317329407},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.40136146545410156},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.361849308013916},{"id":"https://openalex.org/C136229726","wikidata":"https://www.wikidata.org/wiki/Q327092","display_name":"Biomedical engineering","level":1,"score":0.33814820647239685},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.33537808060646057},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.32459574937820435},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.22970625758171082},{"id":"https://openalex.org/C2776570981","wikidata":"https://www.wikidata.org/wiki/Q4413093","display_name":"Aortic valve replacement","level":3,"score":0.21090498566627502},{"id":"https://openalex.org/C2779980429","wikidata":"https://www.wikidata.org/wiki/Q101004","display_name":"Aorta","level":2,"score":0.2088547646999359},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.153432697057724},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.15287038683891296},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0740586519241333},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/isbi.2011.5872639","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isbi.2011.5872639","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1860009336","https://openalex.org/W1996617143","https://openalex.org/W2013455877","https://openalex.org/W2051193722","https://openalex.org/W2113599018","https://openalex.org/W2113818772","https://openalex.org/W2122694177","https://openalex.org/W2149659501","https://openalex.org/W2244512589","https://openalex.org/W3022029710"],"related_works":["https://openalex.org/W642829132","https://openalex.org/W2412605305","https://openalex.org/W3137244868","https://openalex.org/W2792266082","https://openalex.org/W108303995","https://openalex.org/W3087597010","https://openalex.org/W3013911695","https://openalex.org/W1970574663","https://openalex.org/W2108404418","https://openalex.org/W3165681048"],"abstract_inverted_index":{"Transcatheter":[0],"aortic":[1,13,37,75],"valve":[2,38,101],"implant":[3],"(TAVI)":[4],"has":[5],"emerged":[6],"as":[7,29,103,105],"a":[8,46,68],"prominent":[9],"approach":[10,80,92],"for":[11,48,67,96,106],"treating":[12],"stenosis.":[14],"Success":[15],"of":[16,24,35,84,99],"such":[17,28],"implants":[18],"depends":[19],"upon":[20],"the":[21,25,30,36,74,78,85,107],"accurate":[22],"assessment":[23],"geometric":[26,51],"features":[27,52],"diameter,":[31],"center":[32],"and":[33],"orientation":[34],"annulus":[39],"(AVA).":[40],"In":[41],"this":[42],"paper,":[43],"we":[44],"present":[45],"method":[47,59],"extracting":[49],"these":[50],"from":[53],"magnetic":[54],"resonance":[55],"images":[56],"(MRI).":[57],"The":[58],"is":[60],"based":[61],"on":[62],"finding":[63],"an":[64],"optimal":[65],"fit":[66],"circular":[69],"ring":[70],"mimicking":[71],"AVA":[72,86],"in":[73,87],"root.":[76],"Moreover,":[77],"presented":[79],"provides":[81],"dynamic":[82],"tracking":[83],"CINE":[88],"MR":[89],"images.":[90],"This":[91],"can":[93],"be":[94],"used":[95],"preoperative":[97],"planning":[98],"prosthetic":[100],"implantation,":[102],"well":[104],"emerging":[108],"MRI":[109],"guided":[110],"manual,":[111],"or":[112],"with":[113],"robot-assisted,":[114],"annuloplasty.":[115]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}