{"created":"2023-05-15T14:43:31.429529+00:00","id":59614,"links":{},"metadata":{"_buckets":{"deposit":"74cc29b5-f952-4411-8b46-fd5d2f0f663c"},"_deposit":{"created_by":1,"id":"59614","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"59614"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00059614","sets":["10:29"]},"author_link":["593201","593202","593203","593208","593212","593198","593205","593204","593209","593210","593215","593207","593206","593200","593214","593213","593211","593199"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2003-04-12","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"＜方法＞ＣＴＩ社製ＰＥＴ-ＣＴシステムはセプタ（隔壁）を持たない３次元撮像専用システムであり、同社製ECAT EXACT HR+システムの前面にＸ線ＣＴシステムを配置したハイブリッド型の画像診断装置である。我々はこのシステムのＰＥＴとしての物理性能特性の評価を行った。空間分解能を18-Ｆのライン線源およびポイント線源を使用して測定した。またＦ-18水溶液を満たしたプールファントムを使用して高係数率を測定し、Ｇｅ-68ユニフォームファントムにてシステム感度および均一性を測定した。さらに、同システムは従来型のＰＥＴシステムが使用しているトランスミッション線源を用いた吸収補正の手法を使用せずに、Ｘ線ＣＴにより撮像されたＣＴ画像を使用して吸収補正を行う。この吸収補正の手法と従来の方法とで得られた画像データを比較検討した。\n＜結果＞ＣＴＩ社製ＰＥＴ-ＣＴシステムのＰＥＴ部は同社製ＨＲ+システムとほぼ同様の物理特性を示した。Ｘ線ＣＴ画像を用いての吸収補正はトランスミッション線源を使用する従来のＰＥＴシステムから得られた画像と同等の画像を得ることができた。\n＜結論＞ハイブリッド型画像診断装置ＥＣＡＴ　ＰＥＴ-ＣＴは従来のＰＥＴシステムとしての物理特性を維持しながら、トランスミッション線源を使用せずにＸ線ＣＴ画像を用いて吸収マップを作成し吸収補正を行い、ＰＥＴの定量画像を得ることができる。このことは臨床面では被検者の拘束時間を短縮化することができ、被検者の負担を低減するのに有用である。","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第６２回日本医学放射線学会","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山田, 実"}],"nameIdentifiers":[{"nameIdentifier":"593198","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉川, 京燦"}],"nameIdentifiers":[{"nameIdentifier":"593199","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田村, 克巳"}],"nameIdentifiers":[{"nameIdentifier":"593200","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"留森, 貴志"}],"nameIdentifiers":[{"nameIdentifier":"593201","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"佐合, 賢治"}],"nameIdentifiers":[{"nameIdentifier":"593202","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松野, 典代"}],"nameIdentifiers":[{"nameIdentifier":"593203","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神立, 進"}],"nameIdentifiers":[{"nameIdentifier":"593204","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"辻井, 博彦"}],"nameIdentifiers":[{"nameIdentifier":"593205","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村田, 啓"}],"nameIdentifiers":[{"nameIdentifier":"593206","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山田 実","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593207","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉川 京燦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593208","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田村 克巳","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593209","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"留森 貴志","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593210","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"佐合 賢治","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593211","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松野 典代","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593212","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神立 進","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593213","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"辻井 博彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593214","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村田 啓","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"593215","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"ハイブリッド型画像診断装置　ECAT PET-CTの性能評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ハイブリッド型画像診断装置　ECAT PET-CTの性能評価"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2003-04-14"},"publish_date":"2003-04-14","publish_status":"0","recid":"59614","relation_version_is_last":true,"title":["ハイブリッド型画像診断装置　ECAT PET-CTの性能評価"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T22:02:55.231160+00:00"}