{"id":"https://openalex.org/W2052811252","doi":"https://doi.org/10.1117/12.431056","title":"New approach to evaluate rotation of cervical vertebrae","display_name":"New approach to evaluate rotation of cervical vertebrae","publication_year":2001,"publication_date":"2001-07-03","ids":{"openalex":"https://openalex.org/W2052811252","doi":"https://doi.org/10.1117/12.431056","mag":"2052811252"},"language":"en","primary_location":{"id":"doi:10.1117/12.431056","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.431056","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"},"type":"conference-paper","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/A5024004973","display_name":"Matthias Hahn","orcid":"https://orcid.org/0000-0002-5213-9034"},"institutions":[{"id":"https://openalex.org/I4210119349","display_name":"Karlsruhe University of Education","ror":"https://ror.org/01t1kq612","country_code":"DE","type":"education","lineage":["https://openalex.org/I4210119349"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Matthias Hahn","raw_affiliation_strings":["Univ. of Karlsruhe (Germany)","university of Karlsruhe, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Univ. of Karlsruhe (Germany)","institution_ids":["https://openalex.org/I4210119349"]},{"raw_affiliation_string":"university of Karlsruhe, Germany","institution_ids":["https://openalex.org/I4210119349"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5024004973"],"corresponding_institution_ids":["https://openalex.org/I4210119349"],"apc_list":null,"apc_paid":null,"fwci":4.4051,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.93467468,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"4322","issue":null,"first_page":"1696","last_page":"1704"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14510","display_name":"Medical Imaging and Analysis","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T14510","display_name":"Medical Imaging and Analysis","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10776","display_name":"Spinal Fractures and Fixation Techniques","score":0.995199978351593,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T10238","display_name":"Spine and Intervertebral Disc Pathology","score":0.9891999959945679,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic 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/rotation","display_name":"Rotation (mathematics)","score":0.7240139245986938},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6111875176429749},{"id":"https://openalex.org/keywords/instant-centre-of-rotation","display_name":"Instant centre of rotation","score":0.5754297971725464},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.5548421740531921},{"id":"https://openalex.org/keywords/cervical-vertebrae","display_name":"Cervical vertebrae","score":0.49495023488998413},{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.4731242060661316},{"id":"https://openalex.org/keywords/vertebra","display_name":"Vertebra","score":0.4683881103992462},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.464020311832428},{"id":"https://openalex.org/keywords/series","display_name":"Series (stratigraphy)","score":0.4549916684627533},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.39971211552619934},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.33076751232147217},{"id":"https://openalex.org/keywords/anatomy","display_name":"Anatomy","score":0.2090384066104889},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.11985781788825989}],"concepts":[{"id":"https://openalex.org/C74050887","wikidata":"https://www.wikidata.org/wiki/Q848368","display_name":"Rotation (mathematics)","level":2,"score":0.7240139245986938},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6111875176429749},{"id":"https://openalex.org/C76724020","wikidata":"https://www.wikidata.org/wiki/Q1429043","display_name":"Instant centre of rotation","level":3,"score":0.5754297971725464},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.5548421740531921},{"id":"https://openalex.org/C2776944266","wikidata":"https://www.wikidata.org/wiki/Q900457","display_name":"Cervical vertebrae","level":2,"score":0.49495023488998413},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.4731242060661316},{"id":"https://openalex.org/C2776412215","wikidata":"https://www.wikidata.org/wiki/Q180323","display_name":"Vertebra","level":2,"score":0.4683881103992462},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.464020311832428},{"id":"https://openalex.org/C143724316","wikidata":"https://www.wikidata.org/wiki/Q312468","display_name":"Series (stratigraphy)","level":2,"score":0.4549916684627533},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.39971211552619934},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.33076751232147217},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.2090384066104889},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.11985781788825989},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1117/12.431056","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.431056","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","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":0,"referenced_works":[],"related_works":["https://openalex.org/W2016137920","https://openalex.org/W2333110306","https://openalex.org/W4235568487","https://openalex.org/W2044667920","https://openalex.org/W65081216","https://openalex.org/W233192740","https://openalex.org/W1987665458","https://openalex.org/W138098922","https://openalex.org/W2745143166","https://openalex.org/W4285245115"],"abstract_inverted_index":{"Functional":[0],"deficits":[1],"after":[2],"whiplash":[3],"injury":[4],"can":[5],"be":[6],"analyzed":[7],"with":[8,32],"a":[9,69,73,81,87,127,144,181],"quite":[10],"novel":[11],"radiologic":[12],"method":[13],"by":[14,126,165],"examination":[15],"of":[16,25,36,75,84,104,116,119,129,152,160,167],"joint-blocks":[17],"in":[18,43,47,78,98,155],"C0/1":[19],"and":[20,28,45,52,61,96,176,187],"C1/2.":[21],"Thereto":[22],"the":[23,37,114,130,135,138,150,161,168],"movability":[24],"C0,":[26,94],"C1":[27,95],"C2":[29,97],"is":[30,111,124,163,190],"determined":[31],"three":[33,174,177],"spiral":[34],"CT-scans":[35],"patient's":[38],"cervical":[39],"spine.":[40],"One":[41],"series":[42],"neutral":[44],"one":[46],"maximal":[48],"active":[49],"lateral":[50],"right":[51],"left":[53],"rotation":[54,100,107,122,137,188],"each.":[55],"Previous":[56],"methods":[57],"were":[58],"slice":[59],"based":[60,148],"time":[62],"consuming":[63],"when":[64],"manually":[65],"evaluated.":[66],"We":[67],"propose":[68],"new":[70],"approach":[71],"to":[72,142],"computation":[74,189],"these":[76],"angles":[77],"3D.":[79],"After":[80],"threshold":[82],"segmentation":[83],"bone":[85],"tissue,":[86],"rough":[88],"2D":[89],"classification":[90],"takes":[91],"place":[92],"for":[93,108],"each":[99,109],"series.":[101],"The":[102,121,157,173,184],"center":[103,118],"an":[105],"axial":[106],"vertebra":[110],"gained":[112],"from":[113],"approximation":[115],"its":[117],"gravity.":[120],"itself":[123],"estimated":[125],"cross-correlation":[128],"radial":[131],"distance":[132],"functions.":[133],"From":[134],"previous":[136],"results":[139],"are":[140],"taken":[141],"initialize":[143],"3D":[145],"matching":[146],"algorithm":[147],"on":[149],"sum":[151],"squared":[153],"differences":[154],"intensity.":[156],"optimal":[158],"match":[159],"vertebrae":[162,185],"computed":[164],"means":[166],"multidimensional":[169],"Powell":[170],"minimization":[171],"algorithm.":[172],"translational":[175],"rotational":[178],"components":[179],"build":[180],"six-dimensional":[182],"search-space.":[183],"detection":[186],"done":[191],"fully":[192],"automatic.":[193]},"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}