{"id":"https://openalex.org/W2065215934","doi":"https://doi.org/10.1080/00016340802088387","title":"Three\u2010dimensional endoanal ultrasound assessment of the anal sphincters: Reproducibility","display_name":"Three\u2010dimensional endoanal ultrasound assessment of the anal sphincters: Reproducibility","publication_year":2008,"publication_date":"2008-05-12","ids":{"openalex":"https://openalex.org/W2065215934","doi":"https://doi.org/10.1080/00016340802088387","mag":"2065215934","pmid":"https://pubmed.ncbi.nlm.nih.gov/18568468"},"language":"en","primary_location":{"id":"doi:10.1080/00016340802088387","doi":"https://doi.org/10.1080/00016340802088387","is_oa":true,"landing_page_url":"https://doi.org/10.1080/00016340802088387","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1080/00016340802088387","source":{"id":"https://openalex.org/S192518766","display_name":"Acta Obstetricia Et Gynecologica Scandinavica","issn_l":"0001-6349","issn":["0001-6349","1600-0412"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320449","host_organization_name":"Informa","host_organization_lineage":["https://openalex.org/P4310320449"],"host_organization_lineage_names":["Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Obstetricia et Gynecologica Scandinavica","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1080/00016340802088387","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5016290164","display_name":"Ingrid Petrikke Olsen","orcid":"https://orcid.org/0009-0007-5917-4418","observed_orcids":["https://orcid.org/0009-0007-5917-4418"]},"institutions":[{"id":"https://openalex.org/I4210120401","display_name":"Hammerfest Hospital","ror":"https://ror.org/02jwg2f21","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I4210120401"]}],"countries":["NO"],"is_corresponding":true,"raw_author_name":"INGRID P. OLSEN","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Hammerfest Hospital, Hammerfest, Norway. ingrid.petrikke.olsen@helse-finnmark.no","Department of Obstetrics and Gynecology, Hammerfest Hospital, Hammerfest, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Hammerfest Hospital, Hammerfest, Norway. ingrid.petrikke.olsen@helse-finnmark.no","institution_ids":["https://openalex.org/I4210120401"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Hammerfest Hospital, Hammerfest, Norway","institution_ids":["https://openalex.org/I4210120401"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015920485","display_name":"K\u00e5re Augensen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"K\u00c5RE AUGENSEN","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway","institution_ids":["https://openalex.org/I2800740805"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010868547","display_name":"Tom Wilsgaard","orcid":"https://orcid.org/0000-0002-2709-9472","observed_orcids":["https://orcid.org/0000-0002-2709-9472"]},"institutions":[{"id":"https://openalex.org/I78037679","display_name":"UiT The Arctic University of Norway","ror":"https://ror.org/00wge5k78","country_code":"NO","type":"education","lineage":["https://openalex.org/I78037679"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"TOM WILSGAARD","raw_affiliation_strings":["Institute of Community Medicine, University of Troms\u00f8, Troms\u00f8, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Community Medicine, University of Troms\u00f8, Troms\u00f8, Norway","institution_ids":["https://openalex.org/I78037679"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004752777","display_name":"Torvid Kiserud","orcid":"https://orcid.org/0000-0003-1825-1660","observed_orcids":["https://orcid.org/0000-0003-1825-1660"]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]},{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"TORVID KISERUD","raw_affiliation_strings":["Department of Clinical Medicine, University of Bergen, Norway","Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Clinical Medicine, University of Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway","institution_ids":["https://openalex.org/I2800740805"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5016290164"],"corresponding_institution_ids":["https://openalex.org/I4210120401"],"apc_list":{"value":3060,"currency":"USD","value_usd":3060},"apc_paid":null,"fwci":1.4755,"has_fulltext":true,"cited_by_count":11,"citation_normalized_percentile":{"value":0.81300144,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"87","issue":"6","first_page":"675","last_page":"681"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10418","display_name":"Pelvic floor disorders treatments","score":0.9922000169754028,"subfield":{"id":"https://openalex.org/subfields/2748","display_name":"Urology"},"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/T10418","display_name":"Pelvic floor disorders treatments","score":0.9922000169754028,"subfield":{"id":"https://openalex.org/subfields/2748","display_name":"Urology"},"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/T11865","display_name":"Anorectal Disease Treatments and Outcomes","score":0.0019000000320374966,"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/T10335","display_name":"Colorectal Cancer Surgical Treatments","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"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/endoanal-ultrasound","display_name":"endoanal ultrasound","score":0.8009999990463257},{"id":"https://openalex.org/keywords/external-anal-sphincter","display_name":"external anal sphincter","score":0.8230000138282776},{"id":"https://openalex.org/keywords/internal-anal-sphincter","display_name":"internal anal sphincter","score":0.9990000128746033},{"id":"https://openalex.org/keywords/measurement-reproducibility","display_name":"measurement reproducibility","score":0.9240000247955322},{"id":"https://openalex.org/keywords/interobserver-variability","display_name":"interobserver variability","score":0.6549999713897705},{"id":"https://openalex.org/keywords/intra-observer-variability","display_name":"intraobserver variability","score":0.8429999947547913},{"id":"https://openalex.org/keywords/landmark-detection","display_name":"landmark detection","score":0.6589999794960022}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.8744640946388245},{"id":"https://openalex.org/C9893847","wikidata":"https://www.wikidata.org/wiki/Q1425625","display_name":"Reproducibility","level":2,"score":0.7565190196037292},{"id":"https://openalex.org/C2780139565","wikidata":"https://www.wikidata.org/wiki/Q5376217","display_name":"Endoanal ultrasound","level":4,"score":0.7430294752120972},{"id":"https://openalex.org/C2780035688","wikidata":"https://www.wikidata.org/wiki/Q2465231","display_name":"Anal canal","level":3,"score":0.6724909543991089},{"id":"https://openalex.org/C2776813522","wikidata":"https://www.wikidata.org/wiki/Q1147182","display_name":"Fecal incontinence","level":2,"score":0.6123857498168945},{"id":"https://openalex.org/C2777399655","wikidata":"https://www.wikidata.org/wiki/Q2379958","display_name":"External anal sphincter","level":4,"score":0.5516034364700317},{"id":"https://openalex.org/C143753070","wikidata":"https://www.wikidata.org/wiki/Q162564","display_name":"Ultrasound","level":2,"score":0.5383478403091431},{"id":"https://openalex.org/C2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","level":1,"score":0.4941573441028595},{"id":"https://openalex.org/C2780877482","wikidata":"https://www.wikidata.org/wiki/Q746416","display_name":"Sphincter","level":2,"score":0.48902902007102966},{"id":"https://openalex.org/C2779973185","wikidata":"https://www.wikidata.org/wiki/Q497","display_name":"Anus","level":2,"score":0.45250850915908813},{"id":"https://openalex.org/C2781102422","wikidata":"https://www.wikidata.org/wiki/Q2601133","display_name":"Internal anal sphincter","level":4,"score":0.4168641269207001},{"id":"https://openalex.org/C20556612","wikidata":"https://www.wikidata.org/wiki/Q4469374","display_name":"Volume (thermodynamics)","level":2,"score":0.4168279469013214},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.37814217805862427},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.3645939528942108},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.2352505922317505},{"id":"https://openalex.org/C2781074409","wikidata":"https://www.wikidata.org/wiki/Q158716","display_name":"Rectum","level":2,"score":0.17258107662200928},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1206313967704773},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.07347437739372253},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001003","descriptor_name":"Anal Canal","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":true},{"descriptor_ui":"D003430","descriptor_name":"Cross-Sectional Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009119","descriptor_name":"Muscle Contraction","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D009929","descriptor_name":"Organ Size","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012146","descriptor_name":"Rest","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D014463","descriptor_name":"Ultrasonography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D021621","descriptor_name":"Imaging, Three-Dimensional","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1080/00016340802088387","doi":"https://doi.org/10.1080/00016340802088387","is_oa":true,"landing_page_url":"https://doi.org/10.1080/00016340802088387","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1080/00016340802088387","source":{"id":"https://openalex.org/S192518766","display_name":"Acta Obstetricia Et Gynecologica Scandinavica","issn_l":"0001-6349","issn":["0001-6349","1600-0412"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320449","host_organization_name":"Informa","host_organization_lineage":["https://openalex.org/P4310320449"],"host_organization_lineage_names":["Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Obstetricia et Gynecologica Scandinavica","raw_type":"journal-article"},{"id":"pmid:18568468","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/18568468","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta obstetricia et gynecologica Scandinavica","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.1080/00016340802088387","doi":"https://doi.org/10.1080/00016340802088387","is_oa":true,"landing_page_url":"https://doi.org/10.1080/00016340802088387","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1080/00016340802088387","source":{"id":"https://openalex.org/S192518766","display_name":"Acta Obstetricia Et Gynecologica Scandinavica","issn_l":"0001-6349","issn":["0001-6349","1600-0412"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320449","host_organization_name":"Informa","host_organization_lineage":["https://openalex.org/P4310320449"],"host_organization_lineage_names":["Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Obstetricia et Gynecologica Scandinavica","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.9537000060081482,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2065215934.pdf","grobid_xml":"https://content.openalex.org/works/W2065215934.grobid-xml"},"referenced_works_count":25,"referenced_works":["https://openalex.org/W83571168","https://openalex.org/W1975784502","https://openalex.org/W1977117210","https://openalex.org/W1983505049","https://openalex.org/W1996586166","https://openalex.org/W2000523010","https://openalex.org/W2006766603","https://openalex.org/W2008886516","https://openalex.org/W2015183963","https://openalex.org/W2038485025","https://openalex.org/W2040927107","https://openalex.org/W2052349765","https://openalex.org/W2054253044","https://openalex.org/W2057281874","https://openalex.org/W2061935158","https://openalex.org/W2082900121","https://openalex.org/W2090929996","https://openalex.org/W2095540819","https://openalex.org/W2103770498","https://openalex.org/W2110096351","https://openalex.org/W2146471789","https://openalex.org/W2159759971","https://openalex.org/W2161281979","https://openalex.org/W2443203677","https://openalex.org/W2997296806"],"related_works":["https://openalex.org/W2054253044","https://openalex.org/W2443203677","https://openalex.org/W2016101237","https://openalex.org/W7163550440","https://openalex.org/W2097111496","https://openalex.org/W2072921901","https://openalex.org/W2008886516","https://openalex.org/W2016769126","https://openalex.org/W2001284411","https://openalex.org/W1977103310"],"abstract_inverted_index":{"OBJECTIVE:":[0],"Volume":[1],"measurement":[2,134,155],"of":[3,31,38,85,92,139,151,176,234],"the":[4,29,32,36,39,54,86,90,93,106,118,131,164,169,174,191,206,232,243],"anal":[5,33,87,132,166,193,208],"sphincter":[6,167,194,209],"can":[7],"be":[8],"a":[9,25,213],"future":[10],"method":[11,40],"for":[12,27,53,110,117,141,146,153,190,228],"assessing":[13,28],"volume":[14,30,76,91,218,244],"loss,":[15],"muscle":[16],"atrophy":[17],"or":[18],"laceration.":[19],"Three-dimensional":[20],"(3D)":[21],"endoanal":[22,229],"ultrasound":[23,230],"is":[24,41],"technique":[26],"sphincters,":[34],"but":[35],"reproducibility":[37,227],"scarcely":[42],"known.":[43],"DESIGN:":[44],"Cross-sectional,":[45],"repeated":[46,105],"measurements.":[47],"SAMPLE:":[48],"Twenty":[49],"women":[50],"were":[51,98,156,178,236],"recruited":[52],"study":[55],"after":[56],"written":[57],"consent":[58],"according":[59],"to":[60,158,184,200,212,248],"an":[61],"ethically":[62],"approved":[63],"protocol,":[64],"nine":[65,119],"0-gravida":[66],"and":[67,81,89,95,114,121,123,144,173,182,189,198],"11":[68],"with":[69,239],"traumatic":[70],"vaginal":[71],"deliveries.":[72],"METHOD:":[73],"Endoanal":[74],"3D-ultrasound":[75],"was":[77,126],"obtained":[78],"during":[79],"rest":[80],"squeeze.":[82],"The":[83,149,202],"length":[84,133],"canal":[88],"external":[94,165,207],"internal":[96,192],"sphincters":[97],"determined":[99],"by":[100],"two":[101],"observers.":[102],"Observer":[103],"1":[104,143],"measurements":[107],"three":[108],"times":[109],"all":[111],"20":[112],"women,":[113],"observer":[115,142,147],"2":[116],"0-gravida,":[120],"intra-":[122],"inter-observer":[124,154],"variation":[125,203,241],"assessed.":[127],"RESULTS:":[128],"During":[129],"rest,":[130],"had":[135],"intra-class":[136,170,222],"correlation":[137,171,223],"coefficients":[138,172,224],"0.91":[140],"0.85":[145],"2.":[148],"limits":[150,175,233],"agreement":[152,177,235],"(-0.81":[157],"1.61)":[159],"measured":[160,186],"in":[161,187,204,217,242,250],"centimeters.":[162],"For":[163],"volume,":[168],"correspondingly:":[179],"0.89,":[180],"0.78":[181],"(-7.29":[183],"6.03)":[185],"cm(3),":[188],"volume:":[195],"0.85,":[196],"0.69":[197],"(-1.72":[199],"2.95).":[201],"identifying":[205],"could":[210],"rise":[211],"corresponding":[214],"30%":[215],"error":[216],"measurement.":[219],"CONCLUSION:":[220],"Although":[221],"showed":[225],"good":[226],"measurements,":[231],"less":[237],"reassuring":[238],"sizeable":[240],"assessment,":[245],"probably":[246],"due":[247],"uncertainty":[249],"landmark":[251],"identification.":[252]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-13T13:42:25.865203","created_date":"2016-06-24T00:00:00"}