{"_buckets": {"deposit": "75196336-3512-4d1e-a0e4-168f57a778a0"}, "_deposit": {"created_by": 14, "id": "2173", "owners": [14], "pid": {"revision_id": 0, "type": "depid", "value": "2173"}, "status": "published"}, "_oai": {"id": "oai:dmu.repo.nii.ac.jp:00002173", "sets": ["178"]}, "author_link": ["10202", "1748", "300", "10201", "10200"], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2019-03-25", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "1", "bibliographicPageEnd": "16", "bibliographicPageStart": "9", "bibliographicVolumeNumber": "46", "bibliographic_titles": [{"bibliographic_title": "Dokkyo Journal of Medical Sciences"}]}]}, "item_10001_description_34": {"attribute_name": "要旨", "attribute_value_mlt": [{"subitem_description": "Background：Diagnosing cardioembolic stroke due to paroxysmal atrial fibrillation（PAF）is difficult, mainly due to low detection rate. We evaluated whether left atrial volume, which can be simply measured using non-contrast chest computed tomography（CT-LAV）, can contribute to the diagnosis of cardioembolic stroke due to PAF（PAF-CE）.\nMethods：Fifty-one consecutive patients with acute ischemic stroke within 24 h of onset were included in this study. Upon admission, we measured the left atrial diameter using transthoracic echocardiography（TTE-LAD）and CT-LAV. Patient background factors such as sex, age, and stroke risk factors were noted as well as brain natriuretic peptide（BNP）value and QTc interval were evaluated on admission. Utilities of BNP value, CT-ALV, and TTE-LAD in PAF-CE diagnosis were compared.\nResults：Patients were classified into three groups：cerebral thrombosis（CTB）group including large-artery atherosclerosis and small-vessel occlusion（n＝16）, cardioembolic stroke due to non-valvular atrial fibrillation（AF-CE）group（n＝20）, and cardioembolic stroke due to paroxysmal atrial fibrillation（PAF-CE）group（n＝15）. BNP value was highest in the AF-CE group（240.5 pg/mL）, followed by the PAF-CE（187.9 pg/mL）and CTB groups（35.0 pg/mL）（p＜0.001）. There was a significant difference in TTE-LAD among the groups（AF-CE group, 43.8 mm；PAF-CE group, 38.3 mm；CTB group, 34.1 mm）（p＜0.001）. CT-LAV was higher in the AF-CE group（142 mm3）than in the PAF-CE（95.8 mm3）and CTB groups（95.8 mm3）（p＜0.001）. In differentiating PAF-CE, the area under the receiver operating characteristic curve was 0.867, 0.742, and 0.845 for BNP value, TTE-LAD, and CT-LAV, respectively. A cut-off CT-LAV value of ≥ 69.6 mm3 had a high diagnostic rate（＞80％ of sensitivity, specificity, positive predictive value, negative predictive value, and accuracy）.\nConclusion：CT-LAV can be useful in diagnosing PAF-CE. Further studies with larger sample size are required to confirm our findings and determine better cut-off value for CT-LAV.", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "獨協医学会"}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "03855023", "subitem_source_identifier_type": "ISSN"}]}, "item_10001_text_24": {"attribute_name": "著者所属", "attribute_value_mlt": [{"subitem_text_value": "Department of Neurology, Dokkyo Medical University"}, {"subitem_text_value": "Department of Neurology, Dokkyo Medical University, Stroke Center, Dokkyo Medical University Hospital, Center of Medical Ultrasonics, Dokkyo Medical University Hospital"}, {"subitem_text_value": "Department of Neurology, Dokkyo Medical University"}, {"subitem_text_value": "Department of Neurology, Dokkyo Medical University"}, {"subitem_text_value": "Department of Neurology, Dokkyo Medical University"}]}, "item_10001_text_33": {"attribute_name": "記事種別", "attribute_value_mlt": [{"subitem_text_value": "Original"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Tsukahara, Yuka", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "10200", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Takekawa, Hidehiro", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "1748", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Iwasaki, Akio", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "10201", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Suzuki, Keisuke", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "10202", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hirata, Koichi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "300", "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": "2019-04-25"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "DJMS-46-1-3.pdf", "filesize": [{"value": "143.1 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 143100.0, "url": {"label": "DJMS-46-1-Tsukahara-本文", "url": "https://dmu.repo.nii.ac.jp/record/2173/files/DJMS-46-1-3.pdf"}, "version_id": "0e301954-f312-4c0b-8443-3577e508c5cb"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "chest computed tomography", "subitem_subject_scheme": "Other"}, {"subitem_subject": "paroxysmal atrial fibrillation", "subitem_subject_scheme": "Other"}, {"subitem_subject": "left atrial volume", "subitem_subject_scheme": "Other"}, {"subitem_subject": "transthoracic echocardiography", "subitem_subject_scheme": "Other"}, {"subitem_subject": "cardioembolic stroke", "subitem_subject_scheme": "Other"}]}, "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": "Utility of Plain Chest Computed Tomography in Diagnosing Cardioembolic Stroke due to Paroxysmal Atrial Fibrillation", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Utility of Plain Chest Computed Tomography in Diagnosing Cardioembolic Stroke due to Paroxysmal Atrial Fibrillation"}]}, "item_type_id": "10001", "owner": "14", "path": ["178"], "permalink_uri": "https://dmu.repo.nii.ac.jp/records/2173", "pubdate": {"attribute_name": "公開日", "attribute_value": "2019-04-25"}, "publish_date": "2019-04-25", "publish_status": "0", "recid": "2173", "relation": {}, "relation_version_is_last": true, "title": ["Utility of Plain Chest Computed Tomography in Diagnosing Cardioembolic Stroke due to Paroxysmal Atrial Fibrillation"], "weko_shared_id": -1}