{"id":"https://openalex.org/W7220427692","doi":"https://doi.org/10.64898/2026.10.02.26364533","title":"Single-Acquisition Spectral and Ultra-High-Resolution Pediatric Head CT: Phantom Comparison of Deep-Silicon Photon-Counting and Energy-Integrating Detectors","display_name":"Single-Acquisition Spectral and Ultra-High-Resolution Pediatric Head CT: Phantom Comparison of Deep-Silicon Photon-Counting and Energy-Integrating Detectors","publication_year":2026,"publication_date":"2026-10-05","ids":{"openalex":"https://openalex.org/W7220427692","doi":"https://doi.org/10.64898/2026.10.02.26364533"},"language":"en","primary_location":{"id":"doi:10.64898/2026.10.02.26364533","doi":"https://doi.org/10.64898/2026.10.02.26364533","is_oa":false,"landing_page_url":"https://doi.org/10.64898/2026.10.02.26364533","pdf_url":null,"source":{"id":"https://openalex.org/S3005729997","display_name":"medRxiv","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":["https://openalex.org/P4310315909"],"host_organization_lineage_names":["Cold Spring Harbor Laboratory Press"],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"medRxiv","raw_type":"posted-content"},"volume":null,"type":"preprint","is_traditional":true,"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/A5157613586","display_name":"Samuel G Feemster","orcid":"https://orcid.org/0009-0007-9454-9000","observed_orcids":["https://orcid.org/0009-0007-9454-9000"]},"institutions":[{"id":"https://openalex.org/I150468666","display_name":"Emory University","ror":"https://ror.org/03czfpz43","country_code":"US","type":"education","lineage":["https://openalex.org/I150468666"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Samuel G Feemster","raw_affiliation_strings":["Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA"],"raw_orcid":"https://orcid.org/0009-0007-9454-9000","affiliations":[{"raw_affiliation_string":"Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA","institution_ids":["https://openalex.org/I150468666"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Ali Rashidi","orcid":"https://orcid.org/0000-0001-5820-6990","observed_orcids":["https://orcid.org/0000-0001-5820-6990"]},"institutions":[{"id":"https://openalex.org/I150468666","display_name":"Emory University","ror":"https://ror.org/03czfpz43","country_code":"US","type":"education","lineage":["https://openalex.org/I150468666"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ali Rashidi","raw_affiliation_strings":["Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA"],"raw_orcid":"https://orcid.org/0000-0001-5820-6990","affiliations":[{"raw_affiliation_string":"Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA","institution_ids":["https://openalex.org/I150468666"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133625911","display_name":"Navid Azimi","orcid":"https://orcid.org/0009-0009-1980-8521","observed_orcids":["https://orcid.org/0009-0009-1980-8521"]},"institutions":[{"id":"https://openalex.org/I150468666","display_name":"Emory University","ror":"https://ror.org/03czfpz43","country_code":"US","type":"education","lineage":["https://openalex.org/I150468666"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Navid Azimi","raw_affiliation_strings":["Department of Computer Science, Emory University, Atlanta, GA, USA","Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA"],"raw_orcid":"https://orcid.org/0009-0009-1980-8521","affiliations":[{"raw_affiliation_string":"Department of Computer Science, Emory University, Atlanta, GA, USA","institution_ids":["https://openalex.org/I150468666"]},{"raw_affiliation_string":"Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA","institution_ids":["https://openalex.org/I150468666"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103400088","display_name":"Zhye Yin","orcid":"https://orcid.org/0000-0003-1524-9258","observed_orcids":["https://orcid.org/0000-0003-1524-9258"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Zhye Yin","raw_affiliation_strings":["GE HealthCare, Waukesha, WI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"GE HealthCare, Waukesha, WI, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082652527","display_name":"Lusik Cherkezyan","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lusik Cherkezyan","raw_affiliation_strings":["GE HealthCare, Waukesha, WI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"GE HealthCare, Waukesha, WI, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077029112","display_name":"Meghan Yue","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Meghan Yue","raw_affiliation_strings":["GE HealthCare, Waukesha, WI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"GE HealthCare, Waukesha, WI, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066213832","display_name":"Brian E. Nett","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Brian E Nett","raw_affiliation_strings":["GE HealthCare, Waukesha, WI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"GE HealthCare, Waukesha, WI, USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5059090915","display_name":"Amir Pourmorteza","orcid":"https://orcid.org/0000-0001-7149-5424","observed_orcids":["https://orcid.org/0000-0001-7149-5424"]},"institutions":[{"id":"https://openalex.org/I150468666","display_name":"Emory University","ror":"https://ror.org/03czfpz43","country_code":"US","type":"education","lineage":["https://openalex.org/I150468666"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Amir Pourmorteza","raw_affiliation_strings":["Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA"],"raw_orcid":"https://orcid.org/0000-0001-7149-5424","affiliations":[{"raw_affiliation_string":"Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA","institution_ids":["https://openalex.org/I150468666"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12386","display_name":"Advanced X-ray and CT Imaging","score":0.9994999766349792,"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"}},"topics":[{"id":"https://openalex.org/T12386","display_name":"Advanced X-ray and CT Imaging","score":0.9994999766349792,"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/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.00019999999494757503,"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/T10844","display_name":"Radiation Dose and Imaging","score":0.00019999999494757503,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/energy-integrating-detector","display_name":"energy-integrating detector","score":0.9129999876022339},{"id":"https://openalex.org/keywords/pediatric-head-ct","display_name":"pediatric head CT","score":0.8109999895095825},{"id":"https://openalex.org/keywords/spectral-ct","display_name":"spectral CT","score":0.7990000247955322},{"id":"https://openalex.org/keywords/ultra-high-resolution-ct","display_name":"ultra-high-resolution CT","score":0.8999999761581421},{"id":"https://openalex.org/keywords/contrast-to-noise-ratio","display_name":"contrast-to-noise ratio","score":0.9120000004768372},{"id":"https://openalex.org/keywords/temporal-bone-imaging","display_name":"temporal bone imaging","score":0.718999981880188},{"id":"https://openalex.org/keywords/ct-dose-index","display_name":"CT dose index","score":0.3330000042915344},{"id":"https://openalex.org/keywords/cdte-detectors","display_name":"CdTe detectors","score":0.7279999852180481}],"concepts":[{"id":"https://openalex.org/C2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","level":1,"score":0.7840999960899353},{"id":"https://openalex.org/C104293457","wikidata":"https://www.wikidata.org/wiki/Q28324852","display_name":"Imaging phantom","level":2,"score":0.705299973487854},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.5212000012397766},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.4772000014781952},{"id":"https://openalex.org/C2779300802","wikidata":"https://www.wikidata.org/wiki/Q13147","display_name":"Skull","level":2,"score":0.47290000319480896},{"id":"https://openalex.org/C2780312720","wikidata":"https://www.wikidata.org/wiki/Q5689100","display_name":"Head (geology)","level":2,"score":0.40299999713897705},{"id":"https://openalex.org/C123688308","wikidata":"https://www.wikidata.org/wiki/Q7309537","display_name":"Correction for attenuation","level":3,"score":0.32359999418258667},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.31700000166893005},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.3012000024318695},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.29030001163482666},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.28760001063346863},{"id":"https://openalex.org/C82233179","wikidata":"https://www.wikidata.org/wiki/Q2054500","display_name":"Partial volume","level":2,"score":0.2842000126838684},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.28040000796318054},{"id":"https://openalex.org/C544519230","wikidata":"https://www.wikidata.org/wiki/Q32566","display_name":"Computed tomography","level":2,"score":0.2709999978542328},{"id":"https://openalex.org/C136229726","wikidata":"https://www.wikidata.org/wiki/Q327092","display_name":"Biomedical engineering","level":1,"score":0.267300009727478},{"id":"https://openalex.org/C36454342","wikidata":"https://www.wikidata.org/wiki/Q245341","display_name":"Radiography","level":2,"score":0.25940001010894775},{"id":"https://openalex.org/C20556612","wikidata":"https://www.wikidata.org/wiki/Q4469374","display_name":"Volume (thermodynamics)","level":2,"score":0.2563000023365021},{"id":"https://openalex.org/C163716698","wikidata":"https://www.wikidata.org/wiki/Q841267","display_name":"Tomography","level":2,"score":0.25540000200271606},{"id":"https://openalex.org/C9893847","wikidata":"https://www.wikidata.org/wiki/Q1425625","display_name":"Reproducibility","level":2,"score":0.25519999861717224}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.64898/2026.10.02.26364533","doi":"https://doi.org/10.64898/2026.10.02.26364533","is_oa":false,"landing_page_url":"https://doi.org/10.64898/2026.10.02.26364533","pdf_url":null,"source":{"id":"https://openalex.org/S3005729997","display_name":"medRxiv","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":["https://openalex.org/P4310315909"],"host_organization_lineage_names":["Cold Spring Harbor Laboratory Press"],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"medRxiv","raw_type":"posted-content"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.8048999905586243,"id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W2009840344","https://openalex.org/W2019940515","https://openalex.org/W2762564756","https://openalex.org/W2887615693","https://openalex.org/W2889741596","https://openalex.org/W3096001627","https://openalex.org/W3127549268","https://openalex.org/W4210753694","https://openalex.org/W4283750732","https://openalex.org/W4385898169","https://openalex.org/W4394567967","https://openalex.org/W4404230565","https://openalex.org/W4408645009","https://openalex.org/W4412522978","https://openalex.org/W4413998258","https://openalex.org/W7165374610"],"related_works":["https://openalex.org/W4411466694","https://openalex.org/W4396694168","https://openalex.org/W7165374610","https://openalex.org/W4400003117","https://openalex.org/W7223233690","https://openalex.org/W4390226595","https://openalex.org/W4382365265","https://openalex.org/W4417361617","https://openalex.org/W4402266319","https://openalex.org/W4385650939"],"abstract_inverted_index":{"ABSTRACT":[0],"Background":[1],"Deep-silicon":[2],"photon-counting":[3,29],"CT":[4,30,35,64],"uses":[5],"a":[6,60],"detector":[7,34],"architecture":[8],"distinct":[9],"from":[10,44,123,248],"cadmium-telluride":[11],"systems":[12],"and":[13,37,40,48,53,74,78,84,93,113,117,120,134,141,147,151,160,164,175,186,207,239,243],"has":[14],"not":[15,178],"been":[16],"evaluated":[17],"for":[18],"pediatric":[19,54,192,245],"head":[20,55,193,246],"imaging.":[21],"Objective":[22],"To":[23],"compare":[24],"attenuation-dependent":[25],"performance":[26],"of":[27,67,100],"deep-silicon":[28],"(dSi-PCCT)":[31],"with":[32],"energy-integrating":[33],"(EID-CT)":[36],"assess":[38],"spectral":[39,242],"ultra-high-resolution":[41],"(UHR)":[42],"reconstructions":[43],"one":[45,249],"acquisition.":[46,250],"Materials":[47],"methods":[49],"Graded-thickness":[50],"cranial":[51],"attenuator":[52],"phantoms":[56],"were":[57,157,199,222],"scanned":[58],"at":[59,138,149],"matched":[61,111],"target":[62],"volume":[63],"dose":[65],"index":[66],"18":[68],"mGy.":[69],"dSi-PCCT":[70,126,229],"used":[71,82],"120":[72],"kVp":[73,206],"generated":[75,118],"50-,":[76],"65-,":[77],"100-keV":[79],"images;":[80],"EID-CT":[81],"80":[83,150,205],"100":[85,142,152,213],"kVp.":[86,153,214],"We":[87,109],"measured":[88],"CT-number":[89,173],"bias,":[90],"noise,":[91],"contrast,":[92],"contrast-to-noise":[94],"ratio":[95],"(CNR)":[96],"across":[97],"0\u20139":[98],"mm":[99],"nominal":[101,235],"skull":[102,236],"thickness.":[103],"Mixed-effects":[104],"models":[105],"assessed":[106],"imaging-condition":[107],"effects.":[108],"compared":[110],"standard-resolution":[112,226],"UHR":[114,219,244],"temporal-bone":[115,217],"images":[116,247],"calcium-":[119],"water-density":[121],"maps":[122],"the":[124,191],"same":[125],"scan.":[127],"Results":[128],"Noise":[129],"increased":[130,238],"by":[131],"4.54%,":[132],"3.07%,":[133],"1.35%":[135],"per":[136],"millimeter":[137],"50,":[139],"65,":[140],"keV,":[143],"respectively,":[144],"versus":[145,162,204,212],"8.38%":[146],"7.84%":[148],"Corresponding":[154],"CNR":[155,197,231],"decreases":[156],"4.17%,":[158],"3.25%,":[159],"1.75%":[161],"8.94%":[163],"8.54%":[165],"(interaction":[166],"P":[167,183,187],"<":[168],"0.001).":[169],"Changes":[170],"in":[171],"absolute":[172],"bias":[174],"contrast":[176],"did":[177],"differ":[179],"among":[180],"conditions":[181],"(":[182],"=":[184,188],"0.92":[185],"0.59).":[189],"In":[190],"phantom,":[194],"model-estimated":[195],"50-keV":[196],"ratios":[198],"1.299":[200],"(95%":[201,209],"CI,":[202,210],"1.163\u20131.452)":[203],"1.424":[208],"1.275\u20131.592)":[211],"Across":[215],"three":[216],"edges,":[218],"transition":[220],"widths":[221],"58.6%\u201361.9%":[223],"narrower":[224],"than":[225],"widths.":[227],"Conclusion":[228],"maintained":[230],"more":[232],"consistently":[233],"as":[234],"thickness":[237],"provided":[240],"complementary":[241]},"counts_by_year":[],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2026-10-06T00:00:00"}
