IRRADIATION CONTROL DEVICE, RADIOTHERAPY SYSTEM, AND IRRADIATION CONTROL METHOD
To cause a radiation beam to be emitted to a treatment target part accurately even when the position of a treatment target part of a tumor, etc. varies cyclically by the respiration of a subject.SOLUTION: In an irradiation control device 18, an irradiation control method, and a radiotherapy system 1...
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| description | To cause a radiation beam to be emitted to a treatment target part accurately even when the position of a treatment target part of a tumor, etc. varies cyclically by the respiration of a subject.SOLUTION: In an irradiation control device 18, an irradiation control method, and a radiotherapy system 10, a positional deviation amount calculation part 18d calculates a respiratory positional deviation amount of a diaphragm 22 in a transparent image with respect to a position of the diaphragm 20 of a subject in a DRR image by using the transparent image and the DRR image of the same rotation angle of a gantry. An irradiation permission determination part 18e permits irradiation of the subject with a radiation beam from a radiation beam source if the positional deviation amount is a first predetermined value or less.SELECTED DRAWING: Figure 1
【課題】被検体の呼吸によって腫瘍等の治療対象部分の位置が周期的に変動する場合でも、該治療対象部分に対して放射線ビームを精度良く照射させる。【解決手段】照射制御装置１８、照射制御方法及び放射線治療システム１０において、位置ずれ量計算部１８ｄは、ガントリの同一の回転角度の透視画像及びＤＲＲ画像を用いて、ＤＲＲ画像中の被検体の横隔膜２０の位置に対する透視画像中の横隔膜２２の呼吸性の位置ずれ量を計算する。照射許可判定部１８ｅは、位置ずれ量が第１所定値以下であれば、放射線ビーム源から被検体への放射線ビームの照射を許可する。【選択図】図１ |
| format | Patent |
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【課題】被検体の呼吸によって腫瘍等の治療対象部分の位置が周期的に変動する場合でも、該治療対象部分に対して放射線ビームを精度良く照射させる。【解決手段】照射制御装置１８、照射制御方法及び放射線治療システム１０において、位置ずれ量計算部１８ｄは、ガントリの同一の回転角度の透視画像及びＤＲＲ画像を用いて、ＤＲＲ画像中の被検体の横隔膜２０の位置に対する透視画像中の横隔膜２２の呼吸性の位置ずれ量を計算する。照射許可判定部１８ｅは、位置ずれ量が第１所定値以下であれば、放射線ビーム源から被検体への放射線ビームの照射を許可する。【選択図】図１</description><language>eng ; jpn</language><subject>DIAGNOSIS ; ELECTROTHERAPY ; HUMAN NECESSITIES ; HYGIENE ; IDENTIFICATION ; MAGNETOTHERAPY ; MEDICAL OR VETERINARY SCIENCE ; RADIATION THERAPY ; SURGERY ; ULTRASOUND THERAPY</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220209&DB=EPODOC&CC=JP&NR=2022024401A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220209&DB=EPODOC&CC=JP&NR=2022024401A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAWAHATA ATSUSHI</creatorcontrib><creatorcontrib>SASAKI TAKESHI</creatorcontrib><creatorcontrib>ARAI HIROBUMI</creatorcontrib><title>IRRADIATION CONTROL DEVICE, RADIOTHERAPY SYSTEM, AND IRRADIATION CONTROL METHOD</title><description>To cause a radiation beam to be emitted to a treatment target part accurately even when the position of a treatment target part of a tumor, etc. varies cyclically by the respiration of a subject.SOLUTION: In an irradiation control device 18, an irradiation control method, and a radiotherapy system 10, a positional deviation amount calculation part 18d calculates a respiratory positional deviation amount of a diaphragm 22 in a transparent image with respect to a position of the diaphragm 20 of a subject in a DRR image by using the transparent image and the DRR image of the same rotation angle of a gantry. An irradiation permission determination part 18e permits irradiation of the subject with a radiation beam from a radiation beam source if the positional deviation amount is a first predetermined value or less.SELECTED DRAWING: Figure 1
【課題】被検体の呼吸によって腫瘍等の治療対象部分の位置が周期的に変動する場合でも、該治療対象部分に対して放射線ビームを精度良く照射させる。【解決手段】照射制御装置１８、照射制御方法及び放射線治療システム１０において、位置ずれ量計算部１８ｄは、ガントリの同一の回転角度の透視画像及びＤＲＲ画像を用いて、ＤＲＲ画像中の被検体の横隔膜２０の位置に対する透視画像中の横隔膜２２の呼吸性の位置ずれ量を計算する。照射許可判定部１８ｅは、位置ずれ量が第１所定値以下であれば、放射線ビーム源から被検体への放射線ビームの照射を許可する。【選択図】図１</description><subject>DIAGNOSIS</subject><subject>ELECTROTHERAPY</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>IDENTIFICATION</subject><subject>MAGNETOTHERAPY</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>RADIATION THERAPY</subject><subject>SURGERY</subject><subject>ULTRASOUND THERAPY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPD3DApydPF0DPH091Nw9vcLCfL3UXBxDfN0dtVRAMn4h3i4BjkGRCoERwaHuPrqKDj6uShg0-TrGuLh78LDwJqWmFOcyguluRmU3FxDnD10Uwvy41OLCxKTU_NSS-K9AowMjIDIxMTA0NGYKEUAtvovRw</recordid><startdate>20220209</startdate><enddate>20220209</enddate><creator>SAWAHATA ATSUSHI</creator><creator>SASAKI TAKESHI</creator><creator>ARAI HIROBUMI</creator><scope>EVB</scope></search><sort><creationdate>20220209</creationdate><title>IRRADIATION CONTROL DEVICE, RADIOTHERAPY SYSTEM, AND IRRADIATION CONTROL METHOD</title><author>SAWAHATA ATSUSHI ; SASAKI TAKESHI ; ARAI HIROBUMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2022024401A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2022</creationdate><topic>DIAGNOSIS</topic><topic>ELECTROTHERAPY</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>IDENTIFICATION</topic><topic>MAGNETOTHERAPY</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>RADIATION THERAPY</topic><topic>SURGERY</topic><topic>ULTRASOUND THERAPY</topic><toplevel>online_resources</toplevel><creatorcontrib>SAWAHATA ATSUSHI</creatorcontrib><creatorcontrib>SASAKI TAKESHI</creatorcontrib><creatorcontrib>ARAI HIROBUMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAWAHATA ATSUSHI</au><au>SASAKI TAKESHI</au><au>ARAI HIROBUMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>IRRADIATION CONTROL DEVICE, RADIOTHERAPY SYSTEM, AND IRRADIATION CONTROL METHOD</title><date>2022-02-09</date><risdate>2022</risdate><abstract>To cause a radiation beam to be emitted to a treatment target part accurately even when the position of a treatment target part of a tumor, etc. varies cyclically by the respiration of a subject.SOLUTION: In an irradiation control device 18, an irradiation control method, and a radiotherapy system 10, a positional deviation amount calculation part 18d calculates a respiratory positional deviation amount of a diaphragm 22 in a transparent image with respect to a position of the diaphragm 20 of a subject in a DRR image by using the transparent image and the DRR image of the same rotation angle of a gantry. An irradiation permission determination part 18e permits irradiation of the subject with a radiation beam from a radiation beam source if the positional deviation amount is a first predetermined value or less.SELECTED DRAWING: Figure 1
【課題】被検体の呼吸によって腫瘍等の治療対象部分の位置が周期的に変動する場合でも、該治療対象部分に対して放射線ビームを精度良く照射させる。【解決手段】照射制御装置１８、照射制御方法及び放射線治療システム１０において、位置ずれ量計算部１８ｄは、ガントリの同一の回転角度の透視画像及びＤＲＲ画像を用いて、ＤＲＲ画像中の被検体の横隔膜２０の位置に対する透視画像中の横隔膜２２の呼吸性の位置ずれ量を計算する。照射許可判定部１８ｅは、位置ずれ量が第１所定値以下であれば、放射線ビーム源から被検体への放射線ビームの照射を許可する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | DIAGNOSIS ELECTROTHERAPY HUMAN NECESSITIES HYGIENE IDENTIFICATION MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE RADIATION THERAPY SURGERY ULTRASOUND THERAPY |
| title | IRRADIATION CONTROL DEVICE, RADIOTHERAPY SYSTEM, AND IRRADIATION CONTROL METHOD |
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