{"id":"https://openalex.org/W4400510772","doi":"https://doi.org/10.4236/jct.2024.157025","title":"Planning Target Volume Margin in Linac-Based Stereotactic Radiosurgery for Brain Metastases","display_name":"Planning Target Volume Margin in Linac-Based Stereotactic Radiosurgery for Brain Metastases","publication_year":2024,"publication_date":"2024-01-01","ids":{"openalex":"https://openalex.org/W4400510772","doi":"https://doi.org/10.4236/jct.2024.157025"},"language":"en","primary_location":{"id":"doi:10.4236/jct.2024.157025","doi":"https://doi.org/10.4236/jct.2024.157025","is_oa":true,"landing_page_url":"https://doi.org/10.4236/jct.2024.157025","pdf_url":"https://www.scirp.org/pdf/jct2024157_18903512.pdf","source":{"id":"https://openalex.org/S15087342","display_name":"Journal of Cancer Therapy","issn_l":"2151-1934","issn":["2151-1934","2151-1942"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320480","host_organization_name":"Scientific Research Publishing","host_organization_lineage":["https://openalex.org/P4310320480"],"host_organization_lineage_names":["Scientific Research Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Cancer Therapy","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.scirp.org/pdf/jct2024157_18903512.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112616623","display_name":"Hany Samy Attallah","orcid":"https://orcid.org/0000-0002-1969-5645","observed_orcids":["https://orcid.org/0000-0002-1969-5645"]},"institutions":[{"id":"https://openalex.org/I4210127717","display_name":"Armed Forces College of Medicine","ror":"https://ror.org/033ttrk34","country_code":"EG","type":"education","lineage":["https://openalex.org/I4210127717"]}],"countries":["EG"],"is_corresponding":true,"raw_author_name":"Hany S. Attallah","raw_affiliation_strings":["Department of Radiation Oncology, Armed Forces Medical Collogue (AFCM), Cairo, Egypt","Department of Radiation Oncology, International Medical Center (IMC), Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Radiation Oncology, Armed Forces Medical Collogue (AFCM), Cairo, Egypt","institution_ids":["https://openalex.org/I4210127717"]},{"raw_affiliation_string":"Department of Radiation Oncology, International Medical Center (IMC), Cairo, Egypt","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070644701","display_name":"Radwa Mohamed Hamed","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210127717","display_name":"Armed Forces College of Medicine","ror":"https://ror.org/033ttrk34","country_code":"EG","type":"education","lineage":["https://openalex.org/I4210127717"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Radwa M. Hamed","raw_affiliation_strings":["Department of Radiation Oncology, Armed Forces Medical Collogue (AFCM), Cairo, Egypt","Department of Radiation Oncology, International Medical Center (IMC), Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Radiation Oncology, Armed Forces Medical Collogue (AFCM), Cairo, Egypt","institution_ids":["https://openalex.org/I4210127717"]},{"raw_affiliation_string":"Department of Radiation Oncology, International Medical Center (IMC), Cairo, Egypt","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030621988","display_name":"Khaled Mohamed Elshahat","orcid":"https://orcid.org/0000-0003-0658-5735","observed_orcids":["https://orcid.org/0000-0003-0658-5735"]},"institutions":[{"id":"https://openalex.org/I184834183","display_name":"Al-Azhar University","ror":"https://ror.org/05fnp1145","country_code":"EG","type":"education","lineage":["https://openalex.org/I184834183"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Khaled M. EL-Shahat","raw_affiliation_strings":["Department of Medical Physics, Al Azhar University, Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Medical Physics, Al Azhar University, Cairo, Egypt","institution_ids":["https://openalex.org/I184834183"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004280008","display_name":"Aliaa Mahmoud","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Aliaa Mahmoud","raw_affiliation_strings":["Department of Medical Physics, International Medical Center (IMC), Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Medical Physics, International Medical Center (IMC), Cairo, Egypt","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112665750","display_name":"Mahmoud Abdallah","orcid":"https://orcid.org/0009-0004-7490-4288","observed_orcids":["https://orcid.org/0009-0004-7490-4288"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Mahmoud Abdallah","raw_affiliation_strings":["Department of Radiation Oncology, International Medical Center (IMC), Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Radiation Oncology, International Medical Center (IMC), Cairo, Egypt","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064633189","display_name":"Ibraheem Haggag","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ibraheem Haggag","raw_affiliation_strings":["Department of Medical Physics, International Medical Center (IMC), Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Medical Physics, International Medical Center (IMC), Cairo, Egypt","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103904323","display_name":"Emad Moustafa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I192398990","display_name":"Zagazig University","ror":"https://ror.org/053g6we49","country_code":"EG","type":"education","lineage":["https://openalex.org/I192398990"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Emad Moustafa","raw_affiliation_strings":["Department of Medical Physics, Department of Clinical Oncology, Faculty of Medicine, Zagazig University, Zagazig, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Medical Physics, Department of Clinical Oncology, Faculty of Medicine, Zagazig University, Zagazig, Egypt","institution_ids":["https://openalex.org/I192398990"]}]},{"author_position":"last","author":{"id":null,"display_name":"Adel Yassin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I184834183","display_name":"Al-Azhar University","ror":"https://ror.org/05fnp1145","country_code":"EG","type":"education","lineage":["https://openalex.org/I184834183"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Adel Yassin","raw_affiliation_strings":["Department of Medical Physics, Al Azhar University, Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Medical Physics, Al Azhar University, Cairo, Egypt","institution_ids":["https://openalex.org/I184834183"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5112616623"],"corresponding_institution_ids":["https://openalex.org/I4210127717"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"15","issue":"07","first_page":"265","last_page":"272"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10358","display_name":"Advanced Radiotherapy Techniques","score":0.9750999808311462,"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"}},"topics":[{"id":"https://openalex.org/T10358","display_name":"Advanced Radiotherapy Techniques","score":0.9750999808311462,"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"}},{"id":"https://openalex.org/T11600","display_name":"Brain Metastases and Treatment","score":0.023499999195337296,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"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/T11176","display_name":"Radiation Therapy and Dosimetry","score":0.00039999998989515007,"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/brain-metastases","display_name":"brain metastases","score":0.9810000061988831},{"id":"https://openalex.org/keywords/stereotactic-radiosurgery","display_name":"stereotactic radiosurgery","score":0.9980000257492065},{"id":"https://openalex.org/keywords/gross-tumor-volume","display_name":"gross tumor volume","score":0.734000027179718},{"id":"https://openalex.org/keywords/planning-target-volume","display_name":"planning target volume","score":0.8740000128746033},{"id":"https://openalex.org/keywords/ptv-margin","display_name":"PTV margin","score":0.640999972820282},{"id":"https://openalex.org/keywords/dosimetric-comparison","display_name":"dosimetric comparison","score":0.8109999895095825},{"id":"https://openalex.org/keywords/normal-brain-dose","display_name":"normal brain dose","score":0.6399999856948853},{"id":"https://openalex.org/keywords/treatment-planning","display_name":"treatment planning","score":0.4009999930858612}],"concepts":[{"id":"https://openalex.org/C2780387249","wikidata":"https://www.wikidata.org/wiki/Q973234","display_name":"Radiosurgery","level":3,"score":0.9051795601844788},{"id":"https://openalex.org/C774472","wikidata":"https://www.wikidata.org/wiki/Q6760393","display_name":"Margin (machine learning)","level":2,"score":0.7490763068199158},{"id":"https://openalex.org/C2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","level":1,"score":0.553549587726593},{"id":"https://openalex.org/C180048950","wikidata":"https://www.wikidata.org/wiki/Q836828","display_name":"Linear particle accelerator","level":3,"score":0.525443971157074},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.4786878228187561},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.2948411703109741},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.18829992413520813},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.15799295902252197},{"id":"https://openalex.org/C509974204","wikidata":"https://www.wikidata.org/wiki/Q180507","display_name":"Radiation therapy","level":2,"score":0.1500566601753235},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.10797739028930664},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.05573531985282898},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.4236/jct.2024.157025","doi":"https://doi.org/10.4236/jct.2024.157025","is_oa":true,"landing_page_url":"https://doi.org/10.4236/jct.2024.157025","pdf_url":"https://www.scirp.org/pdf/jct2024157_18903512.pdf","source":{"id":"https://openalex.org/S15087342","display_name":"Journal of Cancer Therapy","issn_l":"2151-1934","issn":["2151-1934","2151-1942"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320480","host_organization_name":"Scientific Research Publishing","host_organization_lineage":["https://openalex.org/P4310320480"],"host_organization_lineage_names":["Scientific Research Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Cancer Therapy","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.4236/jct.2024.157025","doi":"https://doi.org/10.4236/jct.2024.157025","is_oa":true,"landing_page_url":"https://doi.org/10.4236/jct.2024.157025","pdf_url":"https://www.scirp.org/pdf/jct2024157_18903512.pdf","source":{"id":"https://openalex.org/S15087342","display_name":"Journal of Cancer Therapy","issn_l":"2151-1934","issn":["2151-1934","2151-1942"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320480","host_organization_name":"Scientific Research Publishing","host_organization_lineage":["https://openalex.org/P4310320480"],"host_organization_lineage_names":["Scientific Research Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Cancer Therapy","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":0.9537000060081482}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4400510772.pdf","grobid_xml":"https://content.openalex.org/works/W4400510772.grobid-xml"},"referenced_works_count":9,"referenced_works":["https://openalex.org/W1982833872","https://openalex.org/W2080609727","https://openalex.org/W2083128109","https://openalex.org/W2100595880","https://openalex.org/W2112957672","https://openalex.org/W3133514366","https://openalex.org/W4221031915","https://openalex.org/W4225166130","https://openalex.org/W4280556356"],"related_works":["https://openalex.org/W2100595880","https://openalex.org/W4400043606","https://openalex.org/W2312960329","https://openalex.org/W2073709518","https://openalex.org/W2802329414","https://openalex.org/W2340057890","https://openalex.org/W4393327955","https://openalex.org/W4393948546","https://openalex.org/W3209674485","https://openalex.org/W4399842941"],"abstract_inverted_index":{"Background:":[0],"The":[1,17,108,124,135],"treatment":[2,23],"of":[3,13,20,57,110,118],"brain":[4,112,152],"metastases":[5],"with":[6],"radiotherapy":[7],"has":[8],"shifted":[9],"to":[10,44,166],"the":[11,22,26,95,102,111,142,149,171],"use":[12,37],"Stereotactic":[14],"Radio-surgery":[15],"(SRS).":[16],"technical":[18],"issue":[19],"expanding":[21,170],"volume":[24,98,137],"around":[25],"Gross":[27],"Tumor":[28],"Volume":[29],"(GTV)":[30],"is":[31,180],"a":[32,52,116,174],"current":[33],"debate.":[34],"Radiotherapy":[35],"centers":[36],"variable":[38],"GTV-PTV":[39],"margins,":[40],"ranging":[41],"from":[42],"one":[43],"2":[45,160,184],"mm.":[46,185],"Material":[47],"and":[48,66,127,158],"Methods:":[49],"We":[50,68],"performed":[51],"dosimetric":[53,138,168],"comparison":[54],"in":[55,148],"plans":[56],"twenty":[58],"patients":[59],"using":[60],"three":[61],"margins:":[62],"PTV":[63,97,119,175],"zero,":[64],"PTV1,":[65],"PTV2.":[67],"also":[69],"developed":[70],"imaginary":[71],"Peel":[72,136,159],"volumes.":[73],"These":[74],"volumes":[75],"are":[76],"described":[77],"as":[78,115],"follows:":[79],"Peel1":[80,154],"=":[81,86,106,122,156,162],"PTV1":[82],"\u2212":[83,88],"GTV,":[84],"Peel2":[85],"PTV2":[87],"GTV.":[89],"Results:":[90],"Our":[91],"results":[92],"showed":[93,140],"that":[94,141],"mean":[96,143],"differed":[99],"significantly":[100,113,133,146],"across":[101],"different":[103],"margins":[104],"(p":[105,121,155,161],"0.000).":[107,123],"V12":[109],"varied":[114],"function":[117],"margin":[120,179],"target":[125],"coverage":[126],"plan":[128],"quality":[129],"indices":[130],"were":[131],"not":[132],"different.":[134],"analysis":[139],"dose":[144],"was":[145],"higher":[147],"nearby":[150],"normal":[151],"tissue:":[153],"0.022)":[157],"0.013).":[163],"Conclusion:":[164],"According":[165],"our":[167],"analysis,":[169],"GTV":[172],"into":[173],"by":[176],"1":[177],"mm":[178],"more":[181],"convenient":[182],"than":[183]},"counts_by_year":[],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2024-07-11T00:00:00"}
