{"created":"2023-05-15T14:37:15.910787+00:00","id":48046,"links":{},"metadata":{"_buckets":{"deposit":"01d6d62e-4624-49b1-b108-65965f0e7560"},"_deposit":{"created_by":1,"id":"48046","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"48046"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00048046","sets":["1"]},"author_link":["482454","482452","482456","482453","482455","482451"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2017-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"10","bibliographicPageEnd":"4117","bibliographicPageStart":"4107","bibliographicVolumeNumber":"62","bibliographic_titles":[{"bibliographic_title":"Physics in Medicine and Biology"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Much research effort is being made to increase the sensitivity and improve\nthe imaging performance of positron emission tomography (PET) scanners.\nConventionally, sensitivity can be increased by increasing the number of\ndetector rings in the axial direction (but at high cost) or reducing the diameter\nof the scanner (with the disadvantages of reducing the space for patients and\ndegrading the spatial resolution due to the parallax error). In this study, we\nproposed a PET scanner with a truncated ring and an array of detectors that\ncan be arranged in a straight line below the bed. We called this system ‘D-PET’\nas it resembles the letter ‘D’ when it is rotated by 90° in the counterclockwise\ndirection. The basic design idea was to cut the unused space under the patient’s\nbed; this area is usually not in use in clinical diagnosis. We conducted Monte\nCarlo simulations of the D-PET scanner and compared its performance with\na cylindrical PET scanner. The scanners were constructed from 4-layer depthof-\ninteraction detectors which consisted of a 16 × 16 × 4 LYSO crystal array\nwith dimensions of 2.85 × 2.85 × 5 mm3. The results showed that the D-PET\nhad an increase in sensitivity and peak-NECR of 30% and 18%, respectively.\nThe D-PET had low noise in the reconstructed images throughout the fieldof-\nview compared to the cylindrical PET. These were achieved while keeping\nsufficient space for the patient, and also without a severe effect on the spatial\nresolution. Furthermore, the number of detectors (and hence the cost) of the\nD-PET scanner was reduced by 12% compared to the cylindrical PET scanner.","subitem_description_type":"Abstract"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1088/1361-6560/aa6853","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"https://doi.org/10.1088/1361-6560/aa6853"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1088/1361-6560/aa6853","subitem_relation_type_select":"DOI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1361-6560","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":"Ahmed, Abdella"}],"nameIdentifiers":[{"nameIdentifier":"482451","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tashima, Hideaki"}],"nameIdentifiers":[{"nameIdentifier":"482452","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaya, Taiga"}],"nameIdentifiers":[{"nameIdentifier":"482453","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ａｈｍｅｄ Ａｂｄｅｌｌａ Ｍｏｈａｍｍｅｄｎｕｒ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482454","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田島 英朗","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482455","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷 泰賀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482456","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":"Simulation study of a D-shape PET scanner for improved sensitivity and reduced cost in whole-body imaging","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Simulation study of a D-shape PET scanner for improved sensitivity and reduced cost in whole-body imaging"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-06-07"},"publish_date":"2017-06-07","publish_status":"0","recid":"48046","relation_version_is_last":true,"title":["Simulation study of a D-shape PET scanner for improved sensitivity and reduced cost in whole-body imaging"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:32:34.522018+00:00"}