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The eyeball model\nwas lled with a model of vitreous body, i.e. agar gel or water, and was with a pressure sensor to measure\nnormal stress.\nResults: The modes of shaking were classi ed into three patterns, i.e. fast shaking with the fore arms,\nfast shaking with the whole arms and synchronized shaking with the whole arms. The frequency of the\ncyclic acceleration-deceleration history experienced by the head of the dummy doll was 5.0, 4.0 and 2.2 Hz,\nrespectively, with the maximum acceleration of 20, 20 and 60 m/s2, respectively. We considered the last of\nthese three modes of shaking as possibly corresponding to the worst case of violent shaking. This mode of\nshaking could be instructed to volunteers who acted as imitate perpetrators, and resulted in both increased\npeak intensities of the acceleration experienced by the head of the dummy doll and increased stresses on the\nretina at the posterior pole of the eyeball model.\nDiscussion: The time integral of the stress through a single cycle of shaking was 107 Pa s, much larger\nthan that of a single event of fall, which resulted in 60 to 73 Pa s. Taking into account that abusive shaking\nis likely to include multiple cycles, the time integral of the stress due to abusive shaking can be even larger.\nThis clear di erence may explain why RH in SBS / AHT is frequent, while RH in accidental falls is rare.", "subitem_description_type": "Abstract"}]}, "item_6_relation_11": {"attribute_name": "PubMed番号", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "info:pmid/24810668", "subitem_relation_type_select": "PMID"}}]}, "item_6_relation_12": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://dx.doi.org/10.1016/j.injury.2014.04.014", "subitem_relation_type_select": "DOI"}}]}, "item_6_source_id_10": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA11530136", "subitem_source_identifier_type": "NCID"}]}, "item_6_source_id_8": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "00201383", "subitem_source_identifier_type": "PISSN"}]}, "item_6_version_type_16": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_ab4af688f83e57aa", "subitem_version_type": "AM"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Yamazaki, Junpei", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "7147", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yoshida, Makoto", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "7148", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Mizunuma, Hiroshi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "7149", "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": "2016-08-03"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "10721-001.pdf", "filesize": [{"value": "1.9 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1900000.0, "url": {"label": "10721-001.pdf", "url": "https://tokyo-metro-u.repo.nii.ac.jp/record/2537/files/10721-001.pdf"}, "version_id": "569df266-4c99-446c-9b25-32147b8f4e8d"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Shaken baby syndrome", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Abusive head trauma", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Retinal haemorrhage", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Stress", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Vitreous body", "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": "Experimental Analyses of the Retinal and Subretinal Haemorrhages Accompanied by Shaken Baby Syndrome / Abusive Head Trauma Using a Dummy Doll", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Experimental Analyses of the Retinal and Subretinal Haemorrhages Accompanied by Shaken Baby Syndrome / Abusive Head Trauma Using a Dummy Doll", "subitem_title_language": "en"}]}, "item_type_id": "6", "owner": "3", "path": ["508"], "permalink_uri": "http://hdl.handle.net/10748/6392", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2016-08-03"}, "publish_date": "2016-08-03", "publish_status": "0", "recid": "2537", "relation": {}, "relation_version_is_last": true, "title": ["Experimental Analyses of the Retinal and Subretinal Haemorrhages Accompanied by Shaken Baby Syndrome / Abusive Head Trauma Using a Dummy Doll"], "weko_shared_id": -1}
Experimental Analyses of the Retinal and Subretinal Haemorrhages Accompanied by Shaken Baby Syndrome / Abusive Head Trauma Using a Dummy Doll
http://hdl.handle.net/10748/6392
http://hdl.handle.net/10748/639292569701-3115-4a0c-a44f-4d65027dd9d2
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-08-03 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Experimental Analyses of the Retinal and Subretinal Haemorrhages Accompanied by Shaken Baby Syndrome / Abusive Head Trauma Using a Dummy Doll | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Shaken baby syndrome | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Abusive head trauma | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Retinal haemorrhage | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Stress | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Vitreous body | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Yamazaki, Junpei
× Yamazaki, Junpei× Yoshida, Makoto× Mizunuma, Hiroshi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Introduction: We explored several modes of violent shaking using a dummy doll with an eyeball model to reproduce abusive events that lead to retinal haemorrhages (RH) seen in shaken baby syndrome or abusive head trauma (SBS / AHT). Materials and Methods: A dummy doll equipped with an eyeball model was prepared. The eyeball model was lled with a model of vitreous body, i.e. agar gel or water, and was with a pressure sensor to measure normal stress. Results: The modes of shaking were classi ed into three patterns, i.e. fast shaking with the fore arms, fast shaking with the whole arms and synchronized shaking with the whole arms. The frequency of the cyclic acceleration-deceleration history experienced by the head of the dummy doll was 5.0, 4.0 and 2.2 Hz, respectively, with the maximum acceleration of 20, 20 and 60 m/s2, respectively. We considered the last of these three modes of shaking as possibly corresponding to the worst case of violent shaking. This mode of shaking could be instructed to volunteers who acted as imitate perpetrators, and resulted in both increased peak intensities of the acceleration experienced by the head of the dummy doll and increased stresses on the retina at the posterior pole of the eyeball model. Discussion: The time integral of the stress through a single cycle of shaking was 107 Pa s, much larger than that of a single event of fall, which resulted in 60 to 73 Pa s. Taking into account that abusive shaking is likely to include multiple cycles, the time integral of the stress due to abusive shaking can be even larger. This clear di erence may explain why RH in SBS / AHT is frequent, while RH in accidental falls is rare. |
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書誌情報 |
Injury 巻 45, 号 8, p. 1196-1206, 発行日 2014 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 00201383 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11530136 | |||||
PubMed番号 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/24810668 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1016/j.injury.2014.04.014 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |