{"id":"https://openalex.org/W4390066229","doi":"https://doi.org/10.54005/geneltip.1349861","title":"Calculation of the Choroidal Vascularity Index and Tissue Distribution Indexes in Different Retinal and Choroidal Regions by Employing Digital Image Processing Techniques in Optical Coherence Tomography Images","display_name":"Calculation of the Choroidal Vascularity Index and Tissue Distribution Indexes in Different Retinal and Choroidal Regions by Employing Digital Image Processing Techniques in Optical Coherence Tomography Images","publication_year":2023,"publication_date":"2023-12-21","ids":{"openalex":"https://openalex.org/W4390066229","doi":"https://doi.org/10.54005/geneltip.1349861"},"language":"en","primary_location":{"id":"doi:10.54005/geneltip.1349861","doi":"https://doi.org/10.54005/geneltip.1349861","is_oa":true,"landing_page_url":"http://dx.doi.org/10.54005/geneltip.1349861","pdf_url":"https://dergipark.org.tr/en/download/article-file/3362060","source":{"id":"https://openalex.org/S4210207413","display_name":"Genel T\u0131p Dergisi","issn_l":"1301-191X","issn":["1301-191X","2602-3741"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","erih-plus","tr-dizin"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Genel T\u0131p Dergisi","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://dergipark.org.tr/en/download/article-file/3362060","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5045395779","display_name":"Onur \u0130nam","orcid":"https://orcid.org/0000-0002-4726-1190","observed_orcids":["https://orcid.org/0000-0002-4726-1190"]},"institutions":[{"id":"https://openalex.org/I95634034","display_name":"Gazi University","ror":"https://ror.org/054xkpr46","country_code":"TR","type":"education","lineage":["https://openalex.org/I95634034"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Onur \u0130NAM","raw_affiliation_strings":["GAZ\u0130 \u00dcN\u0130VERS\u0130TES\u0130, TIP FAK\u00dcLTES\u0130"],"raw_orcid":"https://orcid.org/0000-0002-4726-1190","affiliations":[{"raw_affiliation_string":"GAZ\u0130 \u00dcN\u0130VERS\u0130TES\u0130, TIP FAK\u00dcLTES\u0130","institution_ids":["https://openalex.org/I95634034"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058001997","display_name":"Deniz Somer","orcid":"https://orcid.org/0000-0003-1487-721X","observed_orcids":["https://orcid.org/0000-0003-1487-721X"]},"institutions":[{"id":"https://openalex.org/I2799503643","display_name":"Columbia University Irving Medical Center","ror":"https://ror.org/01esghr10","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799503643"]},{"id":"https://openalex.org/I4405277310","display_name":"Ankara E\u011fitim ve Ara\u015ft\u0131rma Hastanesi","ror":"https://ror.org/027wtj018","country_code":"TR","type":"healthcare","lineage":["https://openalex.org/I1303077703","https://openalex.org/I4405277310"]}],"countries":["TR","US"],"is_corresponding":false,"raw_author_name":"Deniz SOMER","raw_affiliation_strings":["Clinic of Ophthalmology , Ankara Training and Research Hospital ,","Vagelos College of Physicians and Surgeons , Columbia University Irving Medical Center , New York , NY , USA"],"raw_orcid":"https://orcid.org/0000-0003-1487-721X","affiliations":[{"raw_affiliation_string":"Clinic of Ophthalmology , Ankara Training and Research Hospital ,","institution_ids":["https://openalex.org/I4405277310"]},{"raw_affiliation_string":"Vagelos College of Physicians and Surgeons , Columbia University Irving Medical Center , New York , NY , USA","institution_ids":["https://openalex.org/I2799503643"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113782053","display_name":"G\u00fcner \u00dcney","orcid":"https://orcid.org/0000-0001-8503-4258","observed_orcids":["https://orcid.org/0000-0001-8503-4258"]},"institutions":[{"id":"https://openalex.org/I4405277310","display_name":"Ankara E\u011fitim ve Ara\u015ft\u0131rma Hastanesi","ror":"https://ror.org/027wtj018","country_code":"TR","type":"healthcare","lineage":["https://openalex.org/I1303077703","https://openalex.org/I4405277310"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"G\u00fcner \u00dcNEY","raw_affiliation_strings":["Sa\u011fl\u0131k Bilimleri \u00dcniversitesi, Ankara E\u011fitim ve Ara\u015ft\u0131rma Hastanesi, G\u00f6z Hastal\u0131klar\u0131 Klini\u011fi"],"raw_orcid":"https://orcid.org/0000-0001-8503-4258","affiliations":[{"raw_affiliation_string":"Sa\u011fl\u0131k Bilimleri \u00dcniversitesi, Ankara E\u011fitim ve Ara\u015ft\u0131rma Hastanesi, G\u00f6z Hastal\u0131klar\u0131 Klini\u011fi","institution_ids":["https://openalex.org/I4405277310"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5051144586","display_name":"Abdullah Ruhi Soylu","orcid":"https://orcid.org/0000-0001-9886-9983","observed_orcids":["https://orcid.org/0000-0001-9886-9983"]},"institutions":[{"id":"https://openalex.org/I66514158","display_name":"Hacettepe University","ror":"https://ror.org/04kwvgz42","country_code":"TR","type":"education","lineage":["https://openalex.org/I66514158"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Abdullah SOYLU","raw_affiliation_strings":["HACETTEPE \u00dcN\u0130VERS\u0130TES\u0130, TIP FAK\u00dcLTES\u0130, TEMEL TIP B\u0130L\u0130MLER\u0130 B\u00d6L\u00dcM\u00dc, B\u0130YOF\u0130Z\u0130K ANAB\u0130L\u0130M DALI"],"raw_orcid":"https://orcid.org/0000-0001-9886-9983","affiliations":[{"raw_affiliation_string":"HACETTEPE \u00dcN\u0130VERS\u0130TES\u0130, TIP FAK\u00dcLTES\u0130, TEMEL TIP B\u0130L\u0130MLER\u0130 B\u00d6L\u00dcM\u00dc, B\u0130YOF\u0130Z\u0130K ANAB\u0130L\u0130M DALI","institution_ids":["https://openalex.org/I66514158"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.1382,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.35932192,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":93},"biblio":{"volume":"33","issue":"6","first_page":"785","last_page":"795"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11438","display_name":"Retinal Imaging and Analysis","score":0.9829000234603882,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T11438","display_name":"Retinal Imaging and Analysis","score":0.9829000234603882,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T10170","display_name":"Retinal Diseases and Treatments","score":0.011500000022351742,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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/T11569","display_name":"Optical Coherence Tomography Applications","score":0.002099999925121665,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/choroidal-vascularity-index","display_name":"choroidal vascularity index","score":0.9980000257492065},{"id":"https://openalex.org/keywords/choroid","display_name":"choroid","score":0.7239999771118164},{"id":"https://openalex.org/keywords/retina","display_name":"retina","score":0.7429999709129333},{"id":"https://openalex.org/keywords/optical-coherence-tomography","display_name":"optical coherence tomography","score":0.7850000262260437},{"id":"https://openalex.org/keywords/choroidal-area","display_name":"choroidal area","score":0.8820000290870667},{"id":"https://openalex.org/keywords/retinal-layer-segmentation","display_name":"retinal layer segmentation","score":0.4189999997615814},{"id":"https://openalex.org/keywords/healthy-eyes","display_name":"healthy eyes","score":0.5090000033378601},{"id":"https://openalex.org/keywords/binarization","display_name":"binarization","score":0.7149999737739563},{"id":"https://openalex.org/keywords/retinal-thickness","display_name":"retinal thickness","score":0.3050000071525574},{"id":"https://openalex.org/keywords/choroidal-thickness","display_name":"choroidal thickness","score":0.5590000152587891}],"concepts":[{"id":"https://openalex.org/C178596483","wikidata":"https://www.wikidata.org/wiki/Q7916472","display_name":"Vascularity","level":2,"score":0.8314669132232666},{"id":"https://openalex.org/C2780827179","wikidata":"https://www.wikidata.org/wiki/Q422001","display_name":"Retinal","level":2,"score":0.816338300704956},{"id":"https://openalex.org/C2778818243","wikidata":"https://www.wikidata.org/wiki/Q899552","display_name":"Optical coherence tomography","level":2,"score":0.7814338207244873},{"id":"https://openalex.org/C118487528","wikidata":"https://www.wikidata.org/wiki/Q161437","display_name":"Ophthalmology","level":1,"score":0.5177244544029236},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.46706634759902954},{"id":"https://openalex.org/C2776694393","wikidata":"https://www.wikidata.org/wiki/Q271762","display_name":"Choroid","level":3,"score":0.43200746178627014},{"id":"https://openalex.org/C163716698","wikidata":"https://www.wikidata.org/wiki/Q841267","display_name":"Tomography","level":2,"score":0.4244655966758728},{"id":"https://openalex.org/C2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","level":1,"score":0.3473896384239197},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.21903753280639648},{"id":"https://openalex.org/C2777093970","wikidata":"https://www.wikidata.org/wiki/Q169342","display_name":"Retina","level":2,"score":0.17753678560256958},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.16686755418777466},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.15961256623268127},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1276700496673584}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.54005/geneltip.1349861","doi":"https://doi.org/10.54005/geneltip.1349861","is_oa":true,"landing_page_url":"http://dx.doi.org/10.54005/geneltip.1349861","pdf_url":"https://dergipark.org.tr/en/download/article-file/3362060","source":{"id":"https://openalex.org/S4210207413","display_name":"Genel T\u0131p Dergisi","issn_l":"1301-191X","issn":["1301-191X","2602-3741"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","erih-plus","tr-dizin"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Genel T\u0131p Dergisi","raw_type":"journal-article"},{"id":"pmh:oai:dergipark.org.tr:article/1349861","doi":null,"is_oa":true,"landing_page_url":"https://dergipark.org.tr/tr/pub/geneltip/issue/82006/1349861","pdf_url":"https://dergipark.org.tr/tr/download/article-file/3362060","source":{"id":"https://openalex.org/S4306401840","display_name":"DergiPark (Istanbul University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67581229","host_organization_name":"Istanbul University","host_organization_lineage":["https://openalex.org/I67581229"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Genel T\u0131p Dergisi","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:doaj.org/article:64df850f7e8845dc951942f9d1a8cf56","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/64df850f7e8845dc951942f9d1a8cf56","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Genel T\u0131p Dergisi, Vol 33, Iss 6, Pp 785-795 (2023)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.54005/geneltip.1349861","doi":"https://doi.org/10.54005/geneltip.1349861","is_oa":true,"landing_page_url":"http://dx.doi.org/10.54005/geneltip.1349861","pdf_url":"https://dergipark.org.tr/en/download/article-file/3362060","source":{"id":"https://openalex.org/S4210207413","display_name":"Genel T\u0131p Dergisi","issn_l":"1301-191X","issn":["1301-191X","2602-3741"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","erih-plus","tr-dizin"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Genel T\u0131p Dergisi","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.8048999905586243}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4390066229.pdf","grobid_xml":"https://content.openalex.org/works/W4390066229.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W176676203","https://openalex.org/W1493929963","https://openalex.org/W1520004467","https://openalex.org/W1825190414","https://openalex.org/W1945725154","https://openalex.org/W1977169277","https://openalex.org/W1996609490","https://openalex.org/W2015659872","https://openalex.org/W2020288281","https://openalex.org/W2033702119","https://openalex.org/W2058483899","https://openalex.org/W2062454926","https://openalex.org/W2074294719","https://openalex.org/W2074942581","https://openalex.org/W2075218366","https://openalex.org/W2081642188","https://openalex.org/W2086339711","https://openalex.org/W2099540110","https://openalex.org/W2123496807","https://openalex.org/W2141771435","https://openalex.org/W2167279371","https://openalex.org/W2342715968","https://openalex.org/W2346487820","https://openalex.org/W2409699288","https://openalex.org/W2409743699","https://openalex.org/W2418802570","https://openalex.org/W2464314466","https://openalex.org/W2481599592","https://openalex.org/W2519128474","https://openalex.org/W2523110409","https://openalex.org/W2604769046","https://openalex.org/W2761356134","https://openalex.org/W2772758318"],"related_works":["https://openalex.org/W7045696530","https://openalex.org/W2611003448","https://openalex.org/W3006796718","https://openalex.org/W7203532640","https://openalex.org/W2909532638","https://openalex.org/W2913681726","https://openalex.org/W3122132288","https://openalex.org/W7143457365","https://openalex.org/W4226288224","https://openalex.org/W4223506350"],"abstract_inverted_index":{"Objective:":[0],"In":[1],"this":[2],"study,":[3],"it":[4],"is":[5,141,148,205,211],"aimed":[6],"to":[7],"investigate":[8],"the":[9,107,137,144,156,173,185,196,201,224,258,285],"optical":[10,33],"coherence":[11,34],"tomography":[12,35],"images":[13,37],"of":[14,29,106,155,172,223,230],"healthy":[15,31],"subjects":[16],"for":[17,41,98,136,221,227,281],"various":[18],"parameters":[19,271],"and":[20,25,59,87,100,110,116,122,131,163,207,236,242,248,264,269,272,283,287],"tissue":[21,273],"distribution":[22,274],"indexes.":[23],"Materials":[24],"Methods:":[26],"100":[27,119],"eyes":[28],"50":[30],"case\u2019s":[32],"(OCT)":[36],"have":[38,95,113],"been":[39,96,114],"employed":[40],"analysis.":[42],"Total":[43],"retinal":[44,48,52,65,109,286],"area":[45,49,53,56,61,69,73,77,80,89,112],"(TRA),":[46],"dark":[47,55],"(DRA),":[50],"light":[51,60],"(LRA),":[54],"percent":[57,62,81,90],"(DAP)":[58],"(LAP)":[63],"as":[64,92,161,167,180,188],"measurements;":[66],"total":[67,108],"choroidal":[68,72,76,83,93,111,288],"(TCA),":[70],"luminal":[71,79],"(LCA),":[74],"stromal":[75,88],"(SCA),":[78],"or":[82],"vascularity":[84],"index":[85],"(CVI)":[86],"(SAP)":[91],"measurements":[94,253],"investigated":[97],"vertical":[99,139,157,202,241,251],"horizontal":[101,146,165,186,208,243,259],"OCT":[102],"scans.":[103],"6500":[104],"\u00b5m":[105,120],"binarized":[115],"analyzed":[117],"in":[118,164,290],"intervals":[121],"further":[123],"divided":[124],"into":[125],"three":[126],"main":[127],"parts:":[128],"inner,":[129,233],"middle,":[130],"outer.":[132],"Results:":[133],"CVI":[134,154,171,203,209,268],"value":[135,204,210],"entire":[138,145,174,197,228,232,234,237],"scan":[140,147,292],"69.2\u00b12.6,":[142],"whereas":[143],"70.1\u00b12.7":[149],"(p=0.019).":[150],"Entire":[151],"inner":[152],"part":[153,176],"scans":[158,166,187,244,260],"are":[159],"calculated":[160],"74.5\u00b14.6":[162],"74.8\u00b15.0":[168],"(p=0.678).":[169],"Vertical":[170],"middle":[175,235],"has":[177],"higher":[178,256],"values":[179],"67.2":[181],"\u00b1":[182],"3.9":[183],"than":[184,257],"66.0\u00b14.1":[189],"(p=0.025).":[190],"This":[191],"was":[192,216],"conversely":[193],"recorded":[194],"at":[195],"outer":[198,238],"part,":[199],"which":[200],"66.6\u00b14.3":[206],"70.3\u00b14.7":[212],"(p<0.001).":[213],"Although":[214],"there":[215],"no":[217],"statistically":[218],"significant":[219],"difference":[220],"any":[222],"TRA":[225],"comparisons":[226],"region":[229],"interest,":[231],"parts":[239],"between":[240],"(p=0.386,":[245],"p=0.422,":[246],"p=0.309":[247],"p=0.352":[249],"respectively),":[250],"TCA":[252],"were":[254],"significantly":[255],"(p=0.010,":[261],"p=0.013,":[262],"p=0.012":[263],"p=0.008,":[265],"respectively).":[266],"Conclusion:":[267],"other":[270],"indexes":[275],"could":[276],"be":[277],"a":[278],"valuable":[279],"tool":[280],"differentiating":[282],"evaluating":[284],"conditions":[289],"different":[291],"regions.":[293]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2023-12-22T00:00:00"}