{"created":"2023-05-15T14:34:41.094627+00:00","id":44826,"links":{},"metadata":{"_buckets":{"deposit":"874c676e-0f71-48fc-a787-f5a1ff4761fa"},"_deposit":{"created_by":1,"id":"44826","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"44826"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00044826","sets":["1"]},"author_link":["445180","445185","445183","445174","445181","445179","445184","445177","445182","445188","445187","445189","445178","445175","445176","445186"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-09","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"294","bibliographicPageStart":"289","bibliographicVolumeNumber":"59","bibliographic_titles":[{"bibliographic_title":"European Journal of Radiology"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In cone-beam geometry, image quality may be degraded or artifacts may occur if the cone angle is substantially wide. This is because a cone-beam scan along a circular orbit does not collect the complete set of data required to make an exact reconstruction of all volumetric data. To increase temporal resolution and thus image quality in cone-beam geometry, Silver proposed the new half-scan algorithm (NHS-FDK), which extends Parker's weighting function (HS-FDK) by utilizing a larger range up to 2pi. Here, we evaluated these algorithms for hepatic contrast-enhanced CT in cine scan mode using a 256-detector row CT. The full-scan (FS-FDK) images show uniform distribution of the image noise and CT-number uniformity. Image noise and CT-number uniformity with HS-FDK and NHS-FDK images follow the initial projection angle. HS-FDK images therefore have more changeable higher intensity (brighter) and a lower intensity (darker) areas than respective FS-FDK and NHS-FDK images. We concluded that, considering the trade-off between image quality and temporal resolution, the NHS-FDK algorithm is useful in volumetric cine imaging for the abdomen.","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0720-048X","subitem_source_identifier_type":"ISSN"}]},"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":"Mori, Shinichiro"}],"nameIdentifiers":[{"nameIdentifier":"445174","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Endo, Masahiro"}],"nameIdentifiers":[{"nameIdentifier":"445175","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Obata, Takayuki"}],"nameIdentifiers":[{"nameIdentifier":"445176","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kishimoto, Riwa"}],"nameIdentifiers":[{"nameIdentifier":"445177","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Katou, Hirotoshi"}],"nameIdentifiers":[{"nameIdentifier":"445178","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kandatsu, Susumu"}],"nameIdentifiers":[{"nameIdentifier":"445179","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tsujii, Hirohiko"}],"nameIdentifiers":[{"nameIdentifier":"445180","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tanada, Shuji"}],"nameIdentifiers":[{"nameIdentifier":"445181","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森 慎一郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445182","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"遠藤 真広","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445183","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠 隆行","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445184","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岸本 理和","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445185","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"加藤 博敏","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445186","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神立 進","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445187","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"辻井 博彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445188","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"棚田 修二","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"445189","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Noise properties for three weighted Feldkamp algorithms using a 256-detecotor row CT-scanner: Case study for hepatic volumetric cine imaging","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Noise properties for three weighted Feldkamp algorithms using a 256-detecotor row CT-scanner: Case study for hepatic volumetric cine imaging"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-04-06"},"publish_date":"2007-04-06","publish_status":"0","recid":"44826","relation_version_is_last":true,"title":["Noise properties for three weighted Feldkamp algorithms using a 256-detecotor row CT-scanner: Case study for hepatic volumetric cine imaging"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:10:53.699124+00:00"}