{"_buckets": {"deposit": "8aebd0d3-202a-4799-b5ce-adedecff580f"}, "_deposit": {"id": "16653", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "16653"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00016653", "sets": ["1523"]}, "item_9_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1972-02", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageEnd": "240", "bibliographicPageStart": "227", "bibliographicVolumeNumber": "34", "bibliographic_titles": [{"bibliographic_title": "Nagoya Journal of Medical Science"}]}]}, "item_9_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Calculation of the composite modulation transfer function (MTF) of macroradiography in high magnification conducted with an X-ray tube having a very fine focal spot of 50 μ was performed with the purpose of obtaining the optimal magnification ratio. The optimal magnification ratio of a macroradiogram taken without the object of scatterer was 4-fold when a Fuji KX medical X-ray film combined with fine definition intensifying screen of Kyokko FS was used, 5-fold with medium speed screen of Kyokko MS and 6-fold with high speed screen of Kyokko HS. The optimal magnification ratio was 8-fold regardless of the kind of intensifying screen-film system when the experiment was made with a water phantom of 5-15 cm in thickness as scatterer. It was indicated from MTFs of macroangiograms of various magnifications obtained in animal experiments that the image quality of the macroangiogram of 6- or 8-fold magnification was superior to those of 2-, 4-, 10- and 15-fold ones. It was concluded from the examination of macroangiograms of animals (the part of the rabbit examined was 3-5 cm thick) and macrolymphograms of patients (the examined part was 13 cm thick) that the macroradiogram of 6- or 8-fold magnification produces better findings of the fine structure of vessels than macroradiogram of other magnifications. The results accorded well with those obtained by phantom experiments with water of 5-15 cm in thickness as scatterer.", "subitem_description_type": "Abstract"}]}, "item_9_identifier_60": {"attribute_name": "URI", "attribute_value_mlt": [{"subitem_identifier_type": "URI", "subitem_identifier_uri": "http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/343/343.html"}, {"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/2237/18696"}]}, "item_9_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.18999/nagjms.34.3.227", "subitem_identifier_reg_type": "JaLC"}]}, "item_9_publisher_32": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Nagoya University School of Medicine"}]}, "item_9_select_15": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_9_source_id_61": {"attribute_name": "ISSN（Online）", "attribute_value_mlt": [{"subitem_source_identifier": "2186-3326", "subitem_source_identifier_type": "ISSN"}]}, "item_9_source_id_7": {"attribute_name": "ISSN（print）", "attribute_value_mlt": [{"subitem_source_identifier": "0027-7622", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "AYAKAWA, YOSHIO"}], "nameIdentifiers": [{"nameIdentifier": "49579", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-02-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "v34n3p227_240.pdf", "filesize": [{"value": "2.6 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 2600000.0, "url": {"label": "v34n3p227_240.pdf", "url": "https://nagoya.repo.nii.ac.jp/record/16653/files/v34n3p227_240.pdf"}, "version_id": "bb104f19-18fa-44b4-ba22-bd4d5631e709"}]}, "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": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Optimal Magnification Ratio of Direct Macroradiography in High Magnification Modulation Transfer Function Study on System Combined with Intensifying Screen-Film and Object", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Optimal Magnification Ratio of Direct Macroradiography in High Magnification Modulation Transfer Function Study on System Combined with Intensifying Screen-Film and Object"}]}, "item_type_id": "9", "owner": "1", "path": ["1523"], "permalink_uri": "https://doi.org/10.18999/nagjms.34.3.227", "pubdate": {"attribute_name": "公開日", "attribute_value": "2013-10-10"}, "publish_date": "2013-10-10", "publish_status": "0", "recid": "16653", "relation": {}, "relation_version_is_last": true, "title": ["Optimal Magnification Ratio of Direct Macroradiography in High Magnification Modulation Transfer Function Study on System Combined with Intensifying Screen-Film and Object"], "weko_shared_id": 3}