Speak clearly into the chandelier最新文献

{"title":"On Screen","authors":"John C Q Roberts","doi":"10.4324/9781315829258-11","DOIUrl":"https://doi.org/10.4324/9781315829258-11","url":null,"abstract":"骨撮 影 に 使 用 す る ス ク リ ー ン /フ ィ ル ム シ ス テ ム に つ い て ,従 来 よ り使 用 して き た HR − 4/SuperHR −S30 と,高鮮 鋭度で 粒状性 の改 善 され た AD システム HG −MfUR −2, HG −M /UR −3, EX シλテムXG −S/sRESG (M>そ して, U −V Fast Detail/Ultra−VISion−G の 5 種類を用 い て 足趾前後像 (以下,足趾), 腰 推 側面 像 (以 下,腰椎 )に つ い て 視 覚評価 を 行 っ た. こ の 結果 か ら,ど の よ う な物理特性を持 っ た シス テ ム が 視覚評価 に お いて 高 い 評価 となる か検討 した . 【方法 : 物 理特性 は特性 曲線.階調度曲線,MTF , RMS 粒状 度,べ 一ス の 色 講 (視覚 的に ブルーべ 一 ス色調の 強 さを判定 した) を求め た. 視覚評価 シ ェ ッ フ ェ の 一 対比較の 浦 の 変法 を用 い,5 段階評価 (優れ る 2点,や や 優 れ る 1点. 同等 0 点、 やや劣 る一1点, 劣 る 一2 点)で 行 っ た.観 察者 は放射線技師 4 名,放射線科 医 1 名, 整 形外科 医 2名 とした.観察試料は 管電圧 50Kv ,第 1 中足 骨濃度(D=ユ.0)を一定に した 足賍前後像 と,80Kv ,第 3腰椎濃度 (D>・1.のre一定 に した 腰椎側面像を用 い た.評価項 目は足趾で 第 1中足 骨 基節 骨の 骨梁,中足骨周 囲の 軟部陰影,末節 骨濃度,足 根骨濃度,全 体評疵 〔臨床写真 と して 診断 し易く,バ ラン ス の とれた とい う意味)の 5 項 目とし,腰椎で は、第 2〜4 腰椎の骨梁,椎体 と軟 部陰影 の コントラスト、棘突起 の 見え方,L5 /S 1の見 え 方,全体評価 の 5項 目で 行 っ た、この 結果か ら各 シ ス テ ム の 尺 度 値 を求 め,間隔尺度憊表 を作 成 し,ま た,データ の分散分 析,95% 信頼区間 (シ ステム問 に 有意差 を認め ない場 合は カ ッ コ で 示 す ) も 求め た. 【結 果 ・考 察 】 物理 評価 に お い て MTF は 各シ ス テ ム ともほ ぼ同 等の 結果 とな っ た.この 事 か ら MrF とコントラスト が 寄与 する骨 梁の 評価 は,足 趾 ・腰椎 と も 各骨 濃度の 高階調度(Fi9.3)の シス テ ム が,高い 尺 度値 (Fi9.5>を 得た.足 趾で は UR −2,腰 椎で は UV { }が 高 い 尺度値 で あ っ た,しか し,腰 椎の 骨 梁 で ES −G(lvf )が UR −3 と 95 %信頼区 間で有意 差を 認 め な か っ た原 因 と して,他 の シス テム と比べ 濃度 が最高 O.1高い 事が考え られ,観察試料濃度 を必ず一致 させる 必要が ある. F噛 5 の 骨梁 と全体評価 の 間隔尺 度値 につ い て は,全体評価の 間 隔尺度値 とほぼ同様の 結果 を得 た評価項 目が,骨梁 の 間隔尺度値 で あ り,全体 評価 には骨 梁の評価 が最 も影響を 与え る と考 え られ る.しか し,足 趾で は問隔尺 度値の 幅が広 くな り,こ の原 因 として,医師の 評価(Fi9.7>の 間隔が 広 く全 体 の評 衢 に影 響 した.腰椎 で は 同様な間隔尺 度値 の 幅 とな り,95 %信頼区 間で有意 差を認めな い シス私 間で の 入 れ 替わ り は あ る が,骨 梁が 全体評価 に 最 も影響 を与え る こ と は 間違 い は な い.また, 足趾全体評価 の 聞隔尺 度値 の幅 に 比べ 腰 椎の 幅が 狭 い 原 因 と して 腰 椎の 被写体 厚が厚い た め 散乱 線 な どの 影 響 を 受け,足趾 に 比べ 骨梁 が明瞭 に見 えな い こ とが 考 え られ る, Fi9.6 の 濃度 に依 存 す る項 目で の 中足骨周囲軟部 陰影 は.骨写 真 と して 軟部陰 影 を評価 した 為, 粒状性で な く濃度 として の 評価結果 と な っ た,そ の 他 の 項 目は 特性 曲縁の 形状 と一致 した が,末節 骨 濃度の UR −3は 特性曲線 高濃度部を抑えす ぎた た め コントラストが 低 く視 覚 評価で は低 い 尺度値 とな っ た. また,SHR −S30 は ブルーベース 色調が 強 く 骨梁,コントラストに お い て “ 見 や す い ” と い う印象 を 与え るが,高濃度部位 で は “ 黒 く見え る ” 印象を 与え るた め 低い 尺度値 とな っ た原 因 と考 え られ る.また.ES <X瓰 に つ いて は骨梁 と同様,濃度が他 の システムよ り高 い こ とか ら,棘突起の 見 え方 が 特性 曲線の 形状 と一致 しな い結果 と なっ た, 【ま と め 1 Fig.S 瞬 閣沢度 仁 (骨璽 と全体胛 価) 1』","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125991388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conferences at Cross-purposes","authors":"John C Q Roberts","doi":"10.4324/9781315829258-4","DOIUrl":"https://doi.org/10.4324/9781315829258-4","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128915632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"End of an Era","authors":"John C Q Roberts","doi":"10.4324/9781315829258-15","DOIUrl":"https://doi.org/10.4324/9781315829258-15","url":null,"abstract":"Now, we come to offer you the right catalogues of book to open. end of an era is one of the literary work in this world in suitable to be reading material. That's not only this book gives reference, but also it will show you the amazing benefits of reading a book. Developing your countless minds is needed; moreover you are kind of people with great curiosity. So, the book is very appropriate for you.","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"289 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122773689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two More Festivals","authors":"John C Q Roberts","doi":"10.4324/9781315829258-13","DOIUrl":"https://doi.org/10.4324/9781315829258-13","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121772169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Taking Hold of Change","authors":"John C Q Roberts","doi":"10.4324/9781315829258-14","DOIUrl":"https://doi.org/10.4324/9781315829258-14","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"77 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131092478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Initiation","authors":"John C Q Roberts","doi":"10.4324/9781315829258-2","DOIUrl":"https://doi.org/10.4324/9781315829258-2","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127617367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Tale of Two Spas","authors":"John C Q Roberts","doi":"10.4324/9781315829258-6","DOIUrl":"https://doi.org/10.4324/9781315829258-6","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129581434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Portrait of a Soviet Cultural Attaché","authors":"John C Q Roberts","doi":"10.4324/9781315829258-3","DOIUrl":"https://doi.org/10.4324/9781315829258-3","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130229901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scenes from Theatre Life (1)","authors":"John C Q Roberts","doi":"10.4324/9781315829258-7","DOIUrl":"https://doi.org/10.4324/9781315829258-7","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123764669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harold Wilson for President","authors":"John C Q Roberts","doi":"10.4324/9781315829258-12","DOIUrl":"https://doi.org/10.4324/9781315829258-12","url":null,"abstract":"","PeriodicalId":285695,"journal":{"name":"Speak clearly into the chandelier","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127546207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}