{"created":"2023-05-15T14:59:35.648484+00:00","id":80859,"links":{},"metadata":{"_buckets":{"deposit":"b9417691-c323-401a-a50c-e0904790915f"},"_deposit":{"created_by":1,"id":"80859","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"80859"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00080859","sets":["10:28"]},"author_link":["898066","898065"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2020-11-06","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Recently, a total-body positron emission tomography (PET) scanner, which was developed by UC Davis, enabled the total-body dynamic molecular imaging with a subsecond temporal resolution in a human study. However, when it comes to small animal PET, the long axial field-of-view (FOV) causes a parallax error not only in the radial direction but also in the axial direction. In a previous simulation study, we demonstrated that a total-body small animal PET scanner with a 4-layer depth-of-interaction (DOI) detector can reduce the parallax error substantially. In this study, we present the first imaging results with the prototype total-body small animal PET (TBSAP) scanner. The proposed TBSAP scanner has an inner diameter of 155 mm and an axial length of 325.6 mm which can cover a rat whole-body. The TBSAP consists of 6 rings each of which has 10 DOI detectors Five of 6 rings are used since the detector calibration of the 6th ring has not been finished yet. Each DOI PET detector consists of a 4-layer Zr-doped gadolinium oxyorthosilicate (GSOZ) crystal array and an 8×8 array multi-anode PMT. Each crystal layer has a 16×16 array of GSOZ crystals (2.8×2.8×7.5 mm3) which yields a total crystal thickness of 30 mm. The PMT anode signals are multiplexed using a resistive network, and then digitized by the 8-bit DAQ system (Hamamatsu, Japan). The 2.2 mm rod of the Derenzo-like phantom can be resolved even with the 30 mm radial offset. The peak sensitivity of 16.7% is obtained at the center of the FOV. The parallax error along the radial and axial directions can be reduced by using the 4-layer DOI detector. In the near future, we will perform a real-time dynamic animal imaging study with the prototype PET scanner.","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":"2020 Virtual IEEE Nuclear Science Symposium and Medical Imaging Conference","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":"Kang, Hangyu"}],"nameIdentifiers":[{"nameIdentifier":"898065","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kang, Hangyu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"898066","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":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"First Prototyping of a Total-Body Small Animal PET with a 4-Layer DOI Detector","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"First Prototyping of a Total-Body Small Animal PET with a 4-Layer DOI Detector"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-11-02"},"publish_date":"2020-11-02","publish_status":"0","recid":"80859","relation_version_is_last":true,"title":["First Prototyping of a Total-Body Small Animal PET with a 4-Layer DOI Detector"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:21:20.638937+00:00"}