{"id":"https://openalex.org/W4417473012","doi":"https://doi.org/10.1109/sipaim67325.2025.11283380","title":"Visual Explainability of Attention U-Net for Brain Tumor Segmentation in Multicontrast Magnetic Resonance Images","display_name":"Visual Explainability of Attention U-Net for Brain Tumor Segmentation in Multicontrast Magnetic Resonance Images","publication_year":2025,"publication_date":"2025-11-18","ids":{"openalex":"https://openalex.org/W4417473012","doi":"https://doi.org/10.1109/sipaim67325.2025.11283380"},"language":null,"primary_location":{"id":"doi:10.1109/sipaim67325.2025.11283380","is_oa":false,"landing_page_url":"https://doi.org/10.1109/sipaim67325.2025.11283380","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 21st International Symposium on Biomedical Image Processing and Analysis (SIPAIM)","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/A5042347119","display_name":"Gabriel Guerra","orcid":null},"institutions":[{"id":"https://openalex.org/I79274474","display_name":"University of Valpara\u00edso","ror":"https://ror.org/00h9jrb69","country_code":"CL","type":"education","lineage":["https://openalex.org/I79274474"]}],"countries":["CL"],"is_corresponding":true,"raw_author_name":"Gabriel Guerra","raw_affiliation_strings":["Universidad de Valparaíso,Master’s Program in Biomedical Engineering,Valparaíso,Chile"],"affiliations":[{"raw_affiliation_string":"Universidad de Valparaíso,Master’s Program in Biomedical Engineering,Valparaíso,Chile","institution_ids":["https://openalex.org/I79274474"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5120847890","display_name":"Esthefan\u00eda Astargo","orcid":null},"institutions":[{"id":"https://openalex.org/I79274474","display_name":"University of Valpara\u00edso","ror":"https://ror.org/00h9jrb69","country_code":"CL","type":"education","lineage":["https://openalex.org/I79274474"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Esthefan\u00eda Astargo","raw_affiliation_strings":["Universidad de Valparaíso,Master’s Program in Biomedical Engineering,Valparaíso,Chile"],"affiliations":[{"raw_affiliation_string":"Universidad de Valparaíso,Master’s Program in Biomedical Engineering,Valparaíso,Chile","institution_ids":["https://openalex.org/I79274474"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027450937","display_name":"Diego Mellado","orcid":"https://orcid.org/0000-0001-8078-253X"},"institutions":[{"id":"https://openalex.org/I79274474","display_name":"University of Valpara\u00edso","ror":"https://ror.org/00h9jrb69","country_code":"CL","type":"education","lineage":["https://openalex.org/I79274474"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Diego Mellado","raw_affiliation_strings":["Universidad de Valparaíso,PhD Program in Health Sciences and Engineering,Valparaíso,Chile"],"affiliations":[{"raw_affiliation_string":"Universidad de Valparaíso,PhD Program in Health Sciences and Engineering,Valparaíso,Chile","institution_ids":["https://openalex.org/I79274474"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5107491569","display_name":"Leondry Mayeta","orcid":null},"institutions":[{"id":"https://openalex.org/I79274474","display_name":"University of Valpara\u00edso","ror":"https://ror.org/00h9jrb69","country_code":"CL","type":"education","lineage":["https://openalex.org/I79274474"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Leondry Mayeta","raw_affiliation_strings":["Universidad de Valparaíso,PhD Program in Health Sciences and Engineering,Valparaíso,Chile"],"affiliations":[{"raw_affiliation_string":"Universidad de Valparaíso,PhD Program in Health Sciences and Engineering,Valparaíso,Chile","institution_ids":["https://openalex.org/I79274474"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062863951","display_name":"St\u00e9ren Chabert","orcid":"https://orcid.org/0000-0002-2890-5077"},"institutions":[{"id":"https://openalex.org/I79274474","display_name":"University of Valpara\u00edso","ror":"https://ror.org/00h9jrb69","country_code":"CL","type":"education","lineage":["https://openalex.org/I79274474"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Steren Chabert","raw_affiliation_strings":["Universidad de Valparaíso,Escuela de Ingeniería Civil Biomédica,Valparaíso,Chile"],"affiliations":[{"raw_affiliation_string":"Universidad de Valparaíso,Escuela de Ingeniería Civil Biomédica,Valparaíso,Chile","institution_ids":["https://openalex.org/I79274474"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100705688","display_name":"David Ortiz-Puerta","orcid":"https://orcid.org/0000-0001-6285-3066"},"institutions":[{"id":"https://openalex.org/I79274474","display_name":"University of Valpara\u00edso","ror":"https://ror.org/00h9jrb69","country_code":"CL","type":"education","lineage":["https://openalex.org/I79274474"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"David Ortiz","raw_affiliation_strings":["Universidad de Valparaíso,Escuela de Ingeniería Civil Biomédica,Valparaíso,Chile"],"affiliations":[{"raw_affiliation_string":"Universidad de Valparaíso,Escuela de Ingeniería Civil Biomédica,Valparaíso,Chile","institution_ids":["https://openalex.org/I79274474"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057158475","display_name":"Rodrigo Salas","orcid":"https://orcid.org/0000-0003-1729-5549"},"institutions":[{"id":"https://openalex.org/I79274474","display_name":"University of Valpara\u00edso","ror":"https://ror.org/00h9jrb69","country_code":"CL","type":"education","lineage":["https://openalex.org/I79274474"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Rodrigo Salas","raw_affiliation_strings":["Universidad de Valparaíso,Escuela de Ingeniería Civil Biomédica,Valparaíso,Chile"],"affiliations":[{"raw_affiliation_string":"Universidad de Valparaíso,Escuela de Ingeniería Civil Biomédica,Valparaíso,Chile","institution_ids":["https://openalex.org/I79274474"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5042347119"],"corresponding_institution_ids":["https://openalex.org/I79274474"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.22737837,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12026","display_name":"Explainable Artificial Intelligence (XAI)","score":0.535099983215332,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12026","display_name":"Explainable Artificial Intelligence (XAI)","score":0.535099983215332,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10036","display_name":"Advanced Neural Network Applications","score":0.13779999315738678,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12702","display_name":"Brain Tumor Detection and Classification","score":0.04259999841451645,"subfield":{"id":"https://openalex.org/subfields/2808","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.6984000205993652},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.6553999781608582},{"id":"https://openalex.org/keywords/preprocessor","display_name":"Preprocessor","score":0.5882999897003174},{"id":"https://openalex.org/keywords/histogram","display_name":"Histogram","score":0.5178999900817871},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.4702000021934509},{"id":"https://openalex.org/keywords/visualization","display_name":"Visualization","score":0.43560001254081726},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.41510000824928284},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.40549999475479126},{"id":"https://openalex.org/keywords/image-segmentation","display_name":"Image segmentation","score":0.4004000127315521}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7815999984741211},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.6984000205993652},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6553999781608582},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.623199999332428},{"id":"https://openalex.org/C34736171","wikidata":"https://www.wikidata.org/wiki/Q918333","display_name":"Preprocessor","level":2,"score":0.5882999897003174},{"id":"https://openalex.org/C53533937","wikidata":"https://www.wikidata.org/wiki/Q185020","display_name":"Histogram","level":3,"score":0.5178999900817871},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.4702000021934509},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.44679999351501465},{"id":"https://openalex.org/C36464697","wikidata":"https://www.wikidata.org/wiki/Q451553","display_name":"Visualization","level":2,"score":0.43560001254081726},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.41510000824928284},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.40549999475479126},{"id":"https://openalex.org/C124504099","wikidata":"https://www.wikidata.org/wiki/Q56933","display_name":"Image segmentation","level":3,"score":0.4004000127315521},{"id":"https://openalex.org/C43521106","wikidata":"https://www.wikidata.org/wiki/Q2165493","display_name":"Pipeline (software)","level":2,"score":0.39469999074935913},{"id":"https://openalex.org/C117220453","wikidata":"https://www.wikidata.org/wiki/Q5172842","display_name":"Correlation","level":2,"score":0.3431999981403351},{"id":"https://openalex.org/C64543145","wikidata":"https://www.wikidata.org/wiki/Q162942","display_name":"Intersection (aeronautics)","level":2,"score":0.33340001106262207},{"id":"https://openalex.org/C31601959","wikidata":"https://www.wikidata.org/wiki/Q931309","display_name":"Medical imaging","level":2,"score":0.3305000066757202},{"id":"https://openalex.org/C75553542","wikidata":"https://www.wikidata.org/wiki/Q178161","display_name":"A priori and a posteriori","level":2,"score":0.321399986743927},{"id":"https://openalex.org/C143409427","wikidata":"https://www.wikidata.org/wiki/Q161238","display_name":"Magnetic resonance imaging","level":2,"score":0.31949999928474426},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.31859999895095825},{"id":"https://openalex.org/C22029948","wikidata":"https://www.wikidata.org/wiki/Q45089","display_name":"Dice","level":2,"score":0.3034999966621399},{"id":"https://openalex.org/C2780233690","wikidata":"https://www.wikidata.org/wiki/Q535347","display_name":"Transparency (behavior)","level":2,"score":0.2874000072479248},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.2775000035762787},{"id":"https://openalex.org/C2779130545","wikidata":"https://www.wikidata.org/wiki/Q233309","display_name":"Brain tumor","level":2,"score":0.27630001306533813},{"id":"https://openalex.org/C163892561","wikidata":"https://www.wikidata.org/wiki/Q2613728","display_name":"S\u00f8rensen\u2013Dice coefficient","level":4,"score":0.26809999346733093},{"id":"https://openalex.org/C2781088518","wikidata":"https://www.wikidata.org/wiki/Q256806","display_name":"Esthesioneuroblastoma","level":3,"score":0.2515000104904175}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/sipaim67325.2025.11283380","is_oa":false,"landing_page_url":"https://doi.org/10.1109/sipaim67325.2025.11283380","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 21st International Symposium on Biomedical Image Processing and Analysis (SIPAIM)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1901129140","https://openalex.org/W2616247523","https://openalex.org/W2965867178","https://openalex.org/W3193929510","https://openalex.org/W4221163766","https://openalex.org/W4366262984","https://openalex.org/W4385760777","https://openalex.org/W4388430308","https://openalex.org/W4390481527","https://openalex.org/W4391629570","https://openalex.org/W4399433746","https://openalex.org/W4403456736"],"related_works":[],"abstract_inverted_index":{"This":[0,107],"study":[1],"investigates":[2],"the":[3,23,41,110],"integration":[4],"of":[5,112],"visual":[6],"explainability":[7,49],"techniques":[8,100],"into":[9],"a":[10,35,95],"3D":[11],"Attention":[12],"U-Net":[13],"model":[14,102],"for":[15,117],"brain":[16],"tumor":[17,46,79],"segmentation":[18],"using":[19,63],"multicontrast":[20],"MRI":[21],"from":[22],"BraTS":[24],"2021":[25],"dataset.":[26],"We":[27],"propose":[28],"and":[29,57,70,104],"evaluate":[30],"four":[31],"preprocessing":[32],"variants,":[33],"with":[34,78],"pipeline":[36],"incorporating":[37],"histogram":[38],"matching":[39],"achieving":[40],"highest":[42],"Dice":[43],"scores":[44],"across":[45],"classes.":[47],"Visual":[48],"was":[50],"explored":[51],"through":[52],"two":[53],"complementary":[54],"methods:":[55],"Grad-CAM":[56,75],"feature":[58,87],"extraction":[59],"maps.":[60],"Quantitative":[61],"evaluation":[62],"Feature-based":[64],"Fractional":[65],"Saliency":[66],"Intersection":[67],"Measure":[68],"(FFSIM)":[69],"Pearson":[71],"correlation":[72],"revealed":[73],"that":[74],"better":[76],"aligns":[77],"regions,":[80],"especially":[81],"in":[82],"late":[83],"decoder":[84],"layers,":[85],"while":[86],"maps":[88],"preserve":[89],"anatomical":[90],"context.":[91],"Our":[92],"results":[93],"suggest":[94],"hybrid":[96],"approach":[97],"combining":[98],"both":[99],"improves":[101],"transparency":[103],"clinical":[105],"explainability.":[106],"work":[108],"supports":[109],"development":[111],"trustworthy,":[113],"interpretable":[114],"AI":[115],"systems":[116],"medical":[118],"imaging.":[119]},"counts_by_year":[],"updated_date":"2026-03-07T16:01:11.037858","created_date":"2025-12-18T00:00:00"}