{"id":"https://openalex.org/W2016303073","doi":"https://doi.org/10.1118/1.3613347","title":"WE\u2010C\u2010110\u201008: A Novel Phantom for CT Performance Assessment: Towards a Task\u2010Based Measure of Image Quality","display_name":"WE\u2010C\u2010110\u201008: A Novel Phantom for CT Performance Assessment: Towards a Task\u2010Based Measure of Image Quality","publication_year":2011,"publication_date":"2011-06-01","ids":{"openalex":"https://openalex.org/W2016303073","doi":"https://doi.org/10.1118/1.3613347","mag":"2016303073"},"language":"en","primary_location":{"id":"doi:10.1118/1.3613347","doi":"https://doi.org/10.1118/1.3613347","is_oa":false,"landing_page_url":"https://doi.org/10.1118/1.3613347","pdf_url":null,"source":{"id":"https://openalex.org/S95522064","display_name":"Medical Physics","issn_l":"0094-2405","issn":["0094-2405","1522-8541","2473-4209"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","doyens","jufo-1","ki-jl-1","medline","norway-1"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Medical Physics","raw_type":"journal-article"},"volume":null,"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/A5113724605","display_name":"Samuel Richard","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210126298","display_name":"Duke Medical Center","ror":"https://ror.org/03njmea73","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210126298","https://openalex.org/I4210144876"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"S Richard","raw_affiliation_strings":["Ravin Advanced Imaging Lab, Duke University Medical Center, Durham, NC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ravin Advanced Imaging Lab, Duke University Medical Center, Durham, NC","institution_ids":["https://openalex.org/I4210126298"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5021555712","display_name":"Ehsan Samei","orcid":"https://orcid.org/0000-0001-7451-3309","observed_orcids":["https://orcid.org/0000-0001-7451-3309"]},"institutions":[{"id":"https://openalex.org/I4210126298","display_name":"Duke Medical Center","ror":"https://ror.org/03njmea73","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210126298","https://openalex.org/I4210144876"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E Samei","raw_affiliation_strings":["Ravin Advanced Imaging Lab, Duke University Medical Center, Durham, NC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ravin Advanced Imaging Lab, Duke University Medical Center, Durham, NC","institution_ids":["https://openalex.org/I4210126298"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210126298"],"apc_list":{"value":3360,"currency":"USD","value_usd":3360},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.14259718,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"38","issue":"6Part32","first_page":"3810","last_page":"3810"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10844","display_name":"Radiation Dose and Imaging","score":0.9258000254631042,"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/T10844","display_name":"Radiation Dose and Imaging","score":0.9258000254631042,"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/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.0430000014603138,"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":0.02329999953508377,"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/ct-phantom","display_name":"CT phantom","score":0.824999988079071},{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"iterative reconstruction","score":0.6700000166893005},{"id":"https://openalex.org/keywords/model-based-iterative-reconstruction","display_name":"model-based iterative reconstruction","score":0.8420000076293945},{"id":"https://openalex.org/keywords/image-quality-assessment","display_name":"image quality assessment","score":0.875},{"id":"https://openalex.org/keywords/task-based-image-quality","display_name":"task-based image quality","score":0.8140000104904175},{"id":"https://openalex.org/keywords/modulation-transfer-function","display_name":"modulation transfer function","score":0.8870000243186951},{"id":"https://openalex.org/keywords/noise-power-spectrum","display_name":"noise power spectrum","score":0.9470000267028809},{"id":"https://openalex.org/keywords/contrast-to-noise-ratio","display_name":"contrast-to-noise ratio","score":0.9300000071525574},{"id":"https://openalex.org/keywords/filtered-back-projection","display_name":"filtered backprojection","score":0.6169999837875366},{"id":"https://openalex.org/keywords/dose-reduction","display_name":"dose reduction","score":0.7139999866485596},{"id":"https://openalex.org/keywords/system-performance-evaluation","display_name":"system performance evaluation","score":0.49900001287460327},{"id":"https://openalex.org/keywords/nonlinear-reconstruction","display_name":"nonlinear reconstruction","score":0.42500001192092896}],"concepts":[{"id":"https://openalex.org/C104293457","wikidata":"https://www.wikidata.org/wiki/Q28324852","display_name":"Imaging phantom","level":2,"score":0.8820030689239502},{"id":"https://openalex.org/C55020928","wikidata":"https://www.wikidata.org/wiki/Q3813865","display_name":"Image quality","level":3,"score":0.7436134815216064},{"id":"https://openalex.org/C175231954","wikidata":"https://www.wikidata.org/wiki/Q1942321","display_name":"Optical transfer function","level":2,"score":0.6715250611305237},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.6186519861221313},{"id":"https://openalex.org/C31601959","wikidata":"https://www.wikidata.org/wiki/Q931309","display_name":"Medical imaging","level":2,"score":0.5202133059501648},{"id":"https://openalex.org/C205372480","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"Image resolution","level":2,"score":0.497880220413208},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.47801458835601807},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.44253793358802795},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.4337029457092285},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.42924898862838745},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4249553680419922},{"id":"https://openalex.org/C113740112","wikidata":"https://www.wikidata.org/wiki/Q5904738","display_name":"Slab","level":2,"score":0.41406679153442383},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.35591763257980347},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.34530556201934814},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3006834387779236},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.22416174411773682},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.1464805006980896},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1118/1.3613347","doi":"https://doi.org/10.1118/1.3613347","is_oa":false,"landing_page_url":"https://doi.org/10.1118/1.3613347","pdf_url":null,"source":{"id":"https://openalex.org/S95522064","display_name":"Medical Physics","issn_l":"0094-2405","issn":["0094-2405","1522-8541","2473-4209"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","doyens","jufo-1","ki-jl-1","medline","norway-1"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Medical Physics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.504800021648407}],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2381438901","https://openalex.org/W2352380072","https://openalex.org/W2349064774","https://openalex.org/W2262824164","https://openalex.org/W2370986896","https://openalex.org/W2029251104","https://openalex.org/W2515467626","https://openalex.org/W2383095243","https://openalex.org/W2978746926","https://openalex.org/W2528697634"],"abstract_inverted_index":{"Purpose:":[0],"The":[1,34,84,100,144,163,198,228,299],"advent":[2],"of":[3,31,36,44,54,57,74,88,92,104,107,109,116,125,150,204,247,269],"CT":[4,58,121,171],"iterative":[5,61,181,252,296],"reconstructions":[6],"in":[7,18,120],"the":[8,16,42,95,132,148,154,190,202,222,225,234],"clinic":[9],"has":[10],"posed":[11],"an":[12,105],"increasing":[13],"challenge":[14],"on":[15,167,221],"community":[17],"our":[19],"ability":[20],"to":[21,26,40,49,79,112,130,188,216,265,279,286],"assess":[22],"image":[23,55,192,241,289],"quality":[24,56,193,242,290],"due":[25],"increased":[27],"non\u2010stationarity":[28],"and":[29,64,142,172,178,194,209,212,236,243],"non\u2010linearity":[30],"reconstructed":[32,173],"images.":[33,122],"purpose":[35],"this":[37],"study":[38],"is":[39],"investigate":[41],"potential":[43],"a":[45,51,72,89,114,138,168,179,218,260,276],"novel":[46],"phantom":[47,68,164,261],"aimed":[48],"enable":[50],"robust":[52],"assessment":[53,282],"images":[59],"including":[60],"reconstructions.":[62],"Method":[63],"Materials:":[65],"A":[66],"cylindrical":[67,158],"was":[69,165],"built":[70],"from":[71,233,305],"series":[73],"slabs":[75],"with":[76,174,240,251],"removable":[77],"rings":[78],"simulate":[80,113],"diffrerent":[81],"patient":[82],"sizes.":[83],"\u201cnoise":[85],"slab\u201d":[86,102,146],"consists":[87,103],"uniform":[90],"piece":[91],"acrylic":[93],"for":[94,160,224],"noise\u2010power":[96],"spectrum":[97],"(NPS)":[98],"measurement.":[99],"\u201cresolution":[101],"array":[106],"spheres":[108,126],"various":[110],"materials":[111],"range":[115],"contrast":[117],"levels":[118],"found":[119,215],"Each":[123],"set":[124],"can":[127,262],"be":[128,263,284],"used":[129,187,264],"measure":[131,266],"modulation":[133],"transfer":[134],"function":[135,139],"(MTF)":[136],"as":[137],"contrast,":[140],"dose,":[141],"location.":[143],"\u201cdose":[145],"enables":[147],"incorporation":[149],"ion":[151],"chambers,":[152],"while":[153],"last":[155],"slab":[156],"contains":[157],"inserts":[159],"CNR":[161],"measurements.":[162],"scanned":[166],"64":[169],"slice":[170],"filtered\u2010back":[175],"projection":[176],"(FBP)":[177],"model\u2010based":[180],"reconstruction":[182,253,271,297],"algorithm":[183],"(MBIR).":[184],"Images":[185],"were":[186,214],"derive":[189],"relevant":[191],"dose":[195,213,248],"metrics.":[196],"Results:":[197],"NPS":[199,237],"measurement":[200],"enabled":[201],"characterization":[203],"different":[205,292],"textures":[206],"between":[207,291],"FBP":[208],"MBIR.":[210],"Contrast":[211],"have":[217,301],"significant":[219],"impact":[220],"MTF":[223,235],"MBIR":[226],"data.":[227],"task\u2010based":[229,277],"detectability":[230],"index":[231],"computed":[232],"agreed":[238],"qualitatively":[239],"yielded":[244],"quantitative":[245],"estimation":[246],"reduction":[249],"provided":[250],"algorithms.":[254,272,298],"Conclusions:":[255],"Initial":[256],"results":[257],"showed":[258],"that":[259,275],"imaging":[267],"performance":[268,281],"non\u2010linear":[270],"Results":[273],"suggested":[274],"approach":[278],"system":[280],"may":[283],"essential":[285],"properly":[287],"compare":[288],"protocols":[293],"when":[294],"employing":[295],"authors":[300],"received":[302],"funding":[303],"support":[304],"GE":[306],"healthcare.":[307]},"counts_by_year":[],"updated_date":"2026-09-21T07:43:02.447757","created_date":"2025-10-10T00:00:00"}