{"id":"https://openalex.org/W2156216752","doi":"https://doi.org/10.1109/tmi.2010.2040188","title":"Application and Evaluation of a Measured Spatially Variant System Model for PET Image Reconstruction","display_name":"Application and Evaluation of a Measured Spatially Variant System Model for PET Image Reconstruction","publication_year":2010,"publication_date":"2010-03-01","ids":{"openalex":"https://openalex.org/W2156216752","doi":"https://doi.org/10.1109/tmi.2010.2040188","mag":"2156216752","pmid":"https://pubmed.ncbi.nlm.nih.gov/20199927"},"language":"en","primary_location":{"id":"doi:10.1109/tmi.2010.2040188","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmi.2010.2040188","pdf_url":null,"source":{"id":"https://openalex.org/S58069681","display_name":"IEEE Transactions on Medical Imaging","issn_l":"0278-0062","issn":["0278-0062","1558-254X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Medical Imaging","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/2903538","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5077835961","display_name":"Adam Alessio","orcid":"https://orcid.org/0000-0003-3371-8580"},"institutions":[{"id":"https://openalex.org/I2801852214","display_name":"University of Washington Medical Center","ror":"https://ror.org/00wbzw723","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2801852214"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"A.M. Alessio","raw_affiliation_strings":["Department of Radiology, University of Washington Medical Center, Seattle, WA 98195, USA. aalessio@u.washington.edu","Department of Radiology, University of Washington Medical Center, Seattle, WA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Radiology, University of Washington Medical Center, Seattle, WA 98195, USA. aalessio@u.washington.edu","institution_ids":["https://openalex.org/I2801852214"]},{"raw_affiliation_string":"Department of Radiology, University of Washington Medical Center, Seattle, WA, USA","institution_ids":["https://openalex.org/I2801852214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000434695","display_name":"C.W. Stearns","orcid":"https://orcid.org/0000-0002-7074-6663"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"C.W. Stearns","raw_affiliation_strings":["GE Healthcare Technologies, Waukesha, WI, USA","GE Healthcare; Waukesha WI USA"],"affiliations":[{"raw_affiliation_string":"GE Healthcare Technologies, Waukesha, WI, USA","institution_ids":[]},{"raw_affiliation_string":"GE Healthcare; Waukesha WI USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101857420","display_name":"Tong Shan","orcid":"https://orcid.org/0000-0001-9341-7662"},"institutions":[{"id":"https://openalex.org/I2801852214","display_name":"University of Washington Medical Center","ror":"https://ror.org/00wbzw723","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2801852214"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shan Tong","raw_affiliation_strings":["Department of Radiology, University of Washington Medical Center, Seattle, WA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Radiology, University of Washington Medical Center, Seattle, WA, USA","institution_ids":["https://openalex.org/I2801852214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112412398","display_name":"Steven G. Ross","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S.G. Ross","raw_affiliation_strings":["GE Healthcare Technologies, Waukesha, WI, USA","GE Healthcare; Waukesha WI USA"],"affiliations":[{"raw_affiliation_string":"GE Healthcare Technologies, Waukesha, WI, USA","institution_ids":[]},{"raw_affiliation_string":"GE Healthcare; Waukesha WI USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022455419","display_name":"S.G. Kohlmyer","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S. Kohlmyer","raw_affiliation_strings":["GE Healthcare Technologies, Waukesha, WI, USA","GE Healthcare; Waukesha WI USA"],"affiliations":[{"raw_affiliation_string":"GE Healthcare Technologies, Waukesha, WI, USA","institution_ids":[]},{"raw_affiliation_string":"GE Healthcare; Waukesha WI USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039017761","display_name":"Alex Ganin","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. Ganin","raw_affiliation_strings":["GE Healthcare Technologies, Waukesha, WI, USA","GE Healthcare; Waukesha WI USA"],"affiliations":[{"raw_affiliation_string":"GE Healthcare Technologies, Waukesha, WI, USA","institution_ids":[]},{"raw_affiliation_string":"GE Healthcare; Waukesha WI USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5073998569","display_name":"Paul E. Kinahan","orcid":"https://orcid.org/0000-0001-6461-3306"},"institutions":[{"id":"https://openalex.org/I2801852214","display_name":"University of Washington Medical Center","ror":"https://ror.org/00wbzw723","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2801852214"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"P.E. Kinahan","raw_affiliation_strings":["Department of Radiology, University of Washington Medical Center, Seattle, WA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Radiology, University of Washington Medical Center, Seattle, WA, USA","institution_ids":["https://openalex.org/I2801852214"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5077835961"],"corresponding_institution_ids":["https://openalex.org/I2801852214"],"apc_list":null,"apc_paid":null,"fwci":15.9877,"has_fulltext":false,"cited_by_count":215,"citation_normalized_percentile":{"value":0.99441202,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":100},"biblio":{"volume":"29","issue":"3","first_page":"938","last_page":"949"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":1.0,"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/T10522","display_name":"Medical Imaging Techniques and Applications","score":1.0,"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/T12386","display_name":"Advanced X-ray and CT Imaging","score":0.9990000128746033,"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/T10358","display_name":"Advanced Radiotherapy Techniques","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"Iterative reconstruction","score":0.6940048336982727},{"id":"https://openalex.org/keywords/monte-carlo-method","display_name":"Monte Carlo method","score":0.6391630172729492},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6118388772010803},{"id":"https://openalex.org/keywords/imaging-phantom","display_name":"Imaging phantom","score":0.5826473236083984},{"id":"https://openalex.org/keywords/image-resolution","display_name":"Image resolution","score":0.5550861954689026},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.49877309799194336},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.4914461374282837},{"id":"https://openalex.org/keywords/tomographic-reconstruction","display_name":"Tomographic reconstruction","score":0.48410189151763916},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.4410221576690674},{"id":"https://openalex.org/keywords/tomography","display_name":"Tomography","score":0.41369158029556274},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4053041338920593},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.40075623989105225},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.24161136150360107},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.206297367811203},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.19261455535888672},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.17169269919395447}],"concepts":[{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.6940048336982727},{"id":"https://openalex.org/C19499675","wikidata":"https://www.wikidata.org/wiki/Q232207","display_name":"Monte Carlo method","level":2,"score":0.6391630172729492},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6118388772010803},{"id":"https://openalex.org/C104293457","wikidata":"https://www.wikidata.org/wiki/Q28324852","display_name":"Imaging phantom","level":2,"score":0.5826473236083984},{"id":"https://openalex.org/C205372480","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"Image resolution","level":2,"score":0.5550861954689026},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.49877309799194336},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.4914461374282837},{"id":"https://openalex.org/C97742081","wikidata":"https://www.wikidata.org/wiki/Q7820109","display_name":"Tomographic reconstruction","level":3,"score":0.48410189151763916},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.4410221576690674},{"id":"https://openalex.org/C163716698","wikidata":"https://www.wikidata.org/wiki/Q841267","display_name":"Tomography","level":2,"score":0.41369158029556274},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4053041338920593},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.40075623989105225},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.24161136150360107},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.206297367811203},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.19261455535888672},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.17169269919395447},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001921","descriptor_name":"Brain","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D001921","descriptor_name":"Brain","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D001921","descriptor_name":"Brain","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D001921","descriptor_name":"Brain","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D003198","descriptor_name":"Computer Simulation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003198","descriptor_name":"Computer Simulation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003198","descriptor_name":"Computer Simulation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003198","descriptor_name":"Computer Simulation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003287","descriptor_name":"Contrast Media","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003287","descriptor_name":"Contrast Media","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003287","descriptor_name":"Contrast Media","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003287","descriptor_name":"Contrast Media","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":"D006801","descriptor_name":"Humans","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":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007091","descriptor_name":"Image Processing, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007091","descriptor_name":"Image Processing, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007091","descriptor_name":"Image Processing, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007091","descriptor_name":"Image Processing, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D009010","descriptor_name":"Monte Carlo Method","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009010","descriptor_name":"Monte Carlo Method","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009010","descriptor_name":"Monte Carlo Method","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009010","descriptor_name":"Monte Carlo Method","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016011","descriptor_name":"Normal Distribution","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016011","descriptor_name":"Normal Distribution","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016011","descriptor_name":"Normal Distribution","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016011","descriptor_name":"Normal Distribution","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016477","descriptor_name":"Artifacts","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016477","descriptor_name":"Artifacts","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016477","descriptor_name":"Artifacts","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016477","descriptor_name":"Artifacts","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D019047","descriptor_name":"Phantoms, Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D019047","descriptor_name":"Phantoms, Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D019047","descriptor_name":"Phantoms, Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D019047","descriptor_name":"Phantoms, Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D049268","descriptor_name":"Positron-Emission Tomography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D049268","descriptor_name":"Positron-Emission Tomography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D049268","descriptor_name":"Positron-Emission Tomography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D049268","descriptor_name":"Positron-Emission Tomography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D051598","descriptor_name":"Whole Body Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D051598","descriptor_name":"Whole Body Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D051598","descriptor_name":"Whole Body Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D051598","descriptor_name":"Whole Body Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":3,"locations":[{"id":"doi:10.1109/tmi.2010.2040188","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmi.2010.2040188","pdf_url":null,"source":{"id":"https://openalex.org/S58069681","display_name":"IEEE Transactions on Medical Imaging","issn_l":"0278-0062","issn":["0278-0062","1558-254X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Medical Imaging","raw_type":"journal-article"},{"id":"pmid:20199927","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/20199927","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,"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":"IEEE transactions on medical imaging","raw_type":null},{"id":"pmh:oai:pubmedcentral.nih.gov:2903538","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/2903538","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Trans Med Imaging","raw_type":"Text"}],"best_oa_location":{"id":"pmh:oai:pubmedcentral.nih.gov:2903538","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/2903538","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Trans Med Imaging","raw_type":"Text"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W1968037657","https://openalex.org/W1971754605","https://openalex.org/W1978153144","https://openalex.org/W1981425552","https://openalex.org/W1987859594","https://openalex.org/W1998253261","https://openalex.org/W2014568892","https://openalex.org/W2036232598","https://openalex.org/W2049032689","https://openalex.org/W2065515255","https://openalex.org/W2070539368","https://openalex.org/W2084090004","https://openalex.org/W2107385382","https://openalex.org/W2107762099","https://openalex.org/W2108419053","https://openalex.org/W2115160737","https://openalex.org/W2116181343","https://openalex.org/W2127642613","https://openalex.org/W2138884296","https://openalex.org/W2140428432","https://openalex.org/W2142002356","https://openalex.org/W2151342077","https://openalex.org/W2151379095","https://openalex.org/W2153923567","https://openalex.org/W2154679219","https://openalex.org/W2154744699","https://openalex.org/W2157243283","https://openalex.org/W2164205187","https://openalex.org/W2164211307","https://openalex.org/W2167308698","https://openalex.org/W2169683146","https://openalex.org/W2538300735","https://openalex.org/W6684813937"],"related_works":["https://openalex.org/W2058254206","https://openalex.org/W2164918837","https://openalex.org/W3132685479","https://openalex.org/W2103193587","https://openalex.org/W2790167383","https://openalex.org/W2080382537","https://openalex.org/W4308555761","https://openalex.org/W2147486876","https://openalex.org/W2991352835","https://openalex.org/W2010487843"],"abstract_inverted_index":{"Accurate":[0],"system":[1,69,74,122],"modeling":[2,22,96],"in":[3,101,161,167,229,235,253],"tomographic":[4],"image":[5,171,213],"reconstruction":[6,45,207,224,245],"has":[7],"been":[8],"shown":[9],"to":[10,41,70,86,130,250,256],"reduce":[11],"the":[12,58,97,108,121,151,188,196,201,230,236,240,258],"spatial":[13,162],"variance":[14],"of":[15,37,62,110,139,150,200,222,261],"resolution":[16,163,178],"and":[17,32,105,134,164,179,205,242,264],"improve":[18,42],"quantitative":[19],"accuracy.":[20],"System":[21],"can":[23,184],"be":[24,185,251],"improved":[25,177],"through":[26],"analytic":[27],"calculations,":[28],"Monte":[29,83],"Carlo":[30,84],"simulations,":[31],"physical":[33],"measurements.":[34,118],"The":[35],"purpose":[36],"this":[38,140],"work":[39],"is":[40,93],"clinical":[43],"fully-3-D":[44,79,145],"without":[46],"substantially":[47],"increasing":[48],"computation":[49,193],"time.":[50],"We":[51,81,119],"present":[52,100],"a":[53,63,89,102,111,125,131,136,143,158,219],"practical":[54],"method":[55,190,233],"for":[56,76,95,115],"measuring":[57],"detector":[59],"blurring":[60,99],"component":[61],"whole-body":[64,126],"positron":[65],"emission":[66],"tomography":[67],"(PET)":[68],"form":[71],"an":[72],"approximate":[73],"model":[75],"use":[77,109],"with":[78,187,191,211],"reconstruction.":[80],"employ":[82],"simulations":[85],"show":[87],"that":[88],"non-collimated":[90],"point":[91,113],"source":[92,114],"acceptable":[94],"radial":[98],"PET":[103],"tomograph":[104],"we":[106],"justify":[107],"Na22":[112],"collecting":[116],"these":[117],"measure":[120],"response":[123,141],"on":[124],"scanner,":[127],"simplify":[128],"it":[129],"2-D":[132],"function,":[133],"incorporate":[135],"parameterized":[137],"version":[138],"into":[142],"modified":[144],"OSEM":[146],"algorithm.":[147],"Empirical":[148],"testing":[149],"signal":[152],"versus":[153,181],"noise":[154,172,182],"benefits":[155],"reveal":[156],"roughly":[157],"15%":[159],"improvement":[160,166],"10%":[165],"contrast":[168,180],"at":[169],"matched":[170],"levels.":[173],"Convergence":[174],"analysis":[175],"demonstrates":[176],"properties":[183],"achieved":[186],"proposed":[189,241],"similar":[192,209],"time":[194],"as":[195],"conventional":[197,212],"approach.":[198],"Comparison":[199],"measured":[202],"spatially":[203,231],"variant":[204,232],"invariant":[206,237],"revealed":[208],"performance":[210],"metrics.":[214],"Edge":[215],"artifacts,":[216],"which":[217],"are":[218],"common":[220],"artifact":[221],"resolution-modeled":[223,244],"methods,":[225,246],"were":[226],"less":[227],"apparent":[228],"than":[234],"method.":[238],"With":[239],"other":[243],"edge":[247,265],"artifacts":[248],"need":[249],"studied":[252],"more":[254],"detail":[255],"determine":[257],"optimal":[259],"tradeoff":[260],"resolution/contrast":[262],"enhancement":[263],"fidelity.":[266]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":10},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":13},{"year":2020,"cited_by_count":9},{"year":2019,"cited_by_count":7},{"year":2018,"cited_by_count":11},{"year":2017,"cited_by_count":17},{"year":2016,"cited_by_count":12},{"year":2015,"cited_by_count":30},{"year":2014,"cited_by_count":23},{"year":2013,"cited_by_count":17},{"year":2012,"cited_by_count":22}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
