{"created":"2023-05-15T14:50:49.054638+00:00","id":69465,"links":{},"metadata":{"_buckets":{"deposit":"cf724239-ef22-4599-98dd-1388f818d24d"},"_deposit":{"created_by":1,"id":"69465","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"69465"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00069465","sets":["10:28"]},"author_link":["681739","681728","681731","681737","681736","681727","681730","681734","681738","681740","681735","681729","681733","681732"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2008-09-11","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Diffusion-weighted fMRI has attracted some as a technique that might provide information more directly correlated with actual neural activity than BOLD fMRI.A number of interpretations have been proposed for the diffusion-weighted signal,however many questions remain unanswered.To further examine the dependence of fMRI on b-value,somatosensory forepaw stimulation was conducted on alpha-chloralose anesthetised rats at 7 T.Functional images were acquired at five b-values(b=0,200.800.1400and2000s/mm2)and two echo-times(TE=30and60ms). The mean signal changes from all rats showed a clear difference in signal amplitude between data acquired at differentTEs, although the response shape is qualitatively similar.In contrast to previous human data,the positive stimulus-correlated signal change and post-stimulus undershoot showed a slight downward (but insignificant)\ntrend with increased b-value.Note that the undershoot persists for higher b-values.\nThe IV contribution to the TE=60 ms data may be substantially attenuated because of the relatively short T2 of blood at7T.","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36回日本磁気共鳴医学会","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":"Kershaw, Jeffrey"}],"nameIdentifiers":[{"nameIdentifier":"681727","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Obata, Takayuki"}],"nameIdentifiers":[{"nameIdentifier":"681728","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Joonas, Autio"}],"nameIdentifiers":[{"nameIdentifier":"681729","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shibata, Sayaka"}],"nameIdentifiers":[{"nameIdentifier":"681730","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kuroiwa, Daigo"}],"nameIdentifiers":[{"nameIdentifier":"681731","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kanno, Iwao"}],"nameIdentifiers":[{"nameIdentifier":"681732","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Aoki, Ichio"}],"nameIdentifiers":[{"nameIdentifier":"681733","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ｋｅｒｓｈａｗ Ｊｅｆｆｒｅｙ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"681734","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠 隆行","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"681735","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ヨーナス オーティオ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"681736","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"柴田 さやか","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"681737","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"黒岩 大悟","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"681738","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅野 巖","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"681739","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"青木 伊知男","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"681740","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":"Diffusion-weighted fMRI signal in rat somatosensory cortex at 7T","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Diffusion-weighted fMRI signal in rat somatosensory cortex at 7T"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-09-24"},"publish_date":"2008-09-24","publish_status":"0","recid":"69465","relation_version_is_last":true,"title":["Diffusion-weighted fMRI signal in rat somatosensory cortex at 7T"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:14:10.182620+00:00"}