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JaLCDOI 10.18926/55712
FullText URL biess_2_001_014.pdf
Author Wickstrum Yuuka|
Abstract This paper discusses the diversifying lives of Zainichi Koreans in order to understand their identities in transition. Along with the improved legal and social status of Zainichi Koreans and subsequently their living conditions, a large number of Zainichi Koreans have been leaving ethnic institutions, and in some cases, the Zainichi community. The ethnic relations surrounding Zainichi Koreans also partly reflect the diplomatic relations between Japan and the two Koreas. The difference in the images of the two Koreas is a significant factor in their ethnic identities. This paper also examines how Zainichi Korean civil rights movements after the 1970s have encouraged many Zainichi Koreans to assert and maintain their ethnic pride.
Keywords Zainichi Koreans ethnic identities ethnic organisations social movements
Publication Title Bulletin of Institute for Education and Student Services, Okayama University
Published Date 2017-12-30
Volume volume2
Start Page 1
End Page 14
ISSN 2432-9665
language English
File Version publisher
NAID 120006406803
JaLCDOI 10.18926/bgeou/55704
Title Alternative A Study on “Subject Contents Organization (SCO)” for Teacher Training Program in the Faculty of Education, Okayama University : Practice and Assessment of SCO in Elementary School and Junior High School Teacher Training Curriculum
FullText URL bgeou_167_079_089.pdf
Author Sato, Sono| Okazaki, Masakazu| Uno, Koji| Saitoh, Natsuki| Tsuchiya, Satoshi| Ojima, Taku| Mishima, Tomotaka| Goto, Daisuke| Satoh, Daisuke| Takatsuka, Shigenobu|
Abstract  岡山大学教育学部・教師教育開発センターは,平成23 ~ 27年度「教員の資質向上に寄与する『大学と学校・教育委員会の協働』の実現−学校教育改善との連動で教員養成教育を進化させる−(先進的教員養成プロジェクト)」に取り組んだ。その中の教科構成学開発事業では,本学部で独自に構築・実施しているコア・カリキュラムの中での教科内容構成のあり方について,2つのプロセスから研究を行った。本稿では,平成26年度に学部教育全体で取り組んだ「教科内容構成要素に関するシラバス記述」と,部会員が平成26・27年度に授業を実践した小・中学校の教職および教科に関する科目(数学・理科・家庭科・国語科)の受講生に対して実施した「教科内容構成力」に関するアンケート調査の分析から,本学部の教科内容構成研究の特徴と課題について検討した。
Keywords skills of subject contents organization subjects related to the field of specialization and the teaching profession elementary school and junior high school teacher training program
Publication Title Bulletin of Graduate School of Education, Okayama University
Published Date 2018-02-23
Volume volume167
Start Page 79
End Page 89
ISSN 1883-2423
language Japanese
File Version publisher
NAID 120006401585
JaLCDOI 10.18926/bgeou/55703
Title Alternative Examination of “Skills of Subject Contents Organization” in Practice of “Studies in the Subject Matter of Home Economics Education” in the Home economics Education Course, Faculty of Education Okayama University : Preliminary Research to Develop a Home Economics Curriculum, which Aims to Integrate Academic Subjects Education and Subject Content Education
FullText URL bgeou_167_061_077.pdf
Author Sato, Sono| Kawata, Tetsunori| Lee, Kyoung Won| Sekikawa, Hana| Shinohara, Yoko|
Abstract  岡山大学教育学部家政教育講座では,教科教育と教科内容の統合を目指す教員養成家庭科カリキュラムを構築し,平成22 年度から実践してきた。本報告では,平成26 年度から検討を開始した家庭科カリキュラムにおける「教科内容構成力」育成の取組と,平成27・28年度に実施した「中等家庭科内容論」の授業内容と「教科内容構成力」の育成について検討した。
Keywords 教員養成 コア・カリキュラム 教科教育 教科内容 家庭科
Publication Title Bulletin of Graduate School of Education, Okayama University
Published Date 2018-02-23
Volume volume167
Start Page 61
End Page 77
ISSN 1883-2423
language Japanese
File Version publisher
NAID 120006401584
JaLCDOI 10.18926/bgeou/55701
Title Alternative A Fundamental Researches for Education Curricula of Universal Design (Part.5) : A Study on the Arrival Degree Index of the Curriculum
FullText URL bgeou_167_045_053.pdf
Author Kiyota, Tetsuo|
Abstract  本稿は,「ユニバーサルデザイン教育カリキュラムのための基礎研究」の継続研究である。本研究は,創造性を育む過程で,児童・生徒が社会や地域と出会う美術教育を実践するための教育カリキュラムの構築を目指している。UDによる個の尊重などの視点を取り入れることで,児童・生徒の自己理解を深めるだけでなく,他者や自然環境を深く見つめることで,共感性の幅も広める。  本稿は,カリキュラムを実践するにあたり,小学校から高等学校までの成長過程で,培うべき児童・生徒の力をある程度明確にするため,「自己を深める」,「共感性」,「深く見る」,「社会参画意識」の四つの視点から,先行研究等を基に達成度指標を作成した。
Keywords ユニバーサルデザイン 到達度指標 共感性 社会参画 美術教育
Publication Title Bulletin of Graduate School of Education, Okayama University
Published Date 2018-02-23
Volume volume167
Start Page 45
End Page 53
ISSN 1883-2423
language Japanese
File Version publisher
NAID 120006401582
JaLCDOI 10.18926/bgeou/55700
Title Alternative A Study on Visualization of Register Transitions in Singing Part 1 : Correspondence with Evaluation Results for Music Specialist and Hearing Survey to Subjects
FullText URL bgeou_167_037_043.pdf
Author Mushiaki, Masako| Zaima, Takefumi| Owaki, Masanao|
Abstract  声楽初学者や小中学生が声区転換領域の発声理解に困難を憶えている現状に対して,母音発声の録音および可視化を利用する方法が有効ではないかと考え,そのための基礎研究を行った。まず,基礎となる音声として,プロ歌手の声区転換領域の母音発声を用い,その音声を録音し,同時に可視化した。録音された音声を音楽専門家3名に評価してもらい,その結果に歌手に対して行ったヒアリング調査の結果を反映させ,さらに,発声時の可視化情報を総合して,声区転換前後での発声を評価すると,発声評価に変化が見られることが確認された。その結果は,以下のようにまとめることができる。1.声区転換の可視化情報によって,胸声区と頭声区の違いを確認できた。2.胸声区から頭声区の転換によって,発声の聴取評価が上昇した。3.プロ歌手は,胸声と頭声の声区転換領域の発声について,頭声への意識をもち,響きの増幅や身体の開放に留意している。この結果により,発声の録音情報と可視化情報から,声区転換領域での発声状態を理解できる可能性を示した。
Keywords 声区転換 評価 音の可視化 周波数特性 音圧レベル
Publication Title Bulletin of Graduate School of Education, Okayama University
Published Date 2018-02-23
Volume volume167
Start Page 37
End Page 43
ISSN 1883-2423
language Japanese
File Version publisher
NAID 120006401581
JaLCDOI 10.18926/bgeou/55699
Title Alternative A Research of Clarification on the Themes of Senior High School Geography as ESD
FullText URL bgeou_167_031_036.pdf
Author Wada, Fumio|
Abstract  本小論は,ESDとしての高校地理の学習内容を,実践の視点からいくつかの留意点についての検討により高校地理へのESD導入の意義を明らかにすることを目的とする。地球的課題を学習内容とする高校地理は学校教育におけるESDの主要な教科である。ESDとしての高校地理は,生徒が地球的課題の克服を目指してその要因を探究する。そのためにはグローバル化の問題点を取り上げるべきである。環境問題は自然地理学習の重要性の再確認ともなる。さらに地域調査の実践はその学習の課題を克服する契機ともなっている。
Keywords 持続可能な開発のための教育 地球的課題 高校地理 グローバリゼーション 地域調査
Publication Title Bulletin of Graduate School of Education, Okayama University
Published Date 2018-02-23
Volume volume167
Start Page 31
End Page 36
ISSN 1883-2423
language Japanese
File Version publisher
NAID 120006401580
JaLCDOI 10.18926/bgeou/55698
Title Alternative Study on Teaching Strategy for Learning about Earthquake focused on Developing the Value System of Justice : On the Basis of the Tentative Lesson Plan of a Junior High School Social Studies “Let’s Think about the Problem of Earthquake Recovery”
FullText URL bgeou_167_021_030.pdf
Author Inoue, Masayoshi| Kwabara, Toshinori|
Abstract  本研究は,社会的問題を解決する際の公正さの判断基準の構築によって市民的資質を育成しようとする社会科授業のあり方を,中学校社会科の具体的な単元の開発を通して提案しようとするものである。開発単元では,阪神・淡路大震災と東日本大震災を中心にとり上げており,どのような震災復興が望ましいかを考えさせることを通して,自らの公正さの判断基準を見直させ再構築していくことを目指した。本研究において提案する社会科授業構成原理は,価値判断力育成に関わるもので,それに関しては大杉昭英の研究が注目される。本研究は,社会的価値の認識を重視する大杉の研究に対して,生徒一人ひとりの価値観の形成に焦点をあてたものである。その授業構成原理は,パート1の「公正」という社会事象を捉える枠組みを構成していく段階と,パート2のパート1で構成した「公正」という枠組みを吟味し問い直すことで自己の判断基準を再構築していく段階からなる。そして,具体的には,開発した単元は,パート1の「公正」枠組みの構成段階と,パート2の「公正」枠組みを問い直し,吟味・検証を行う段階から構成されている。  これまでの価値判断力育成の学習論の課題としては,公正概念の多様性をふまえ,子ども自身が持っている価値を吟味・検証させる視点がみられなかった点をあげることができる。本研究では,子どもの価値判断基準の枠組みである「公正」さを構成する段階,構成した枠組みを問い直し吟味する段階を経ることで,その課題を克服できることを明らかにした。
Keywords 中学校社会科 防災学習 価値判断 授業構成 価値観形成
Publication Title Bulletin of Graduate School of Education, Okayama University
Published Date 2018-02-23
Volume volume167
Start Page 21
End Page 30
ISSN 1883-2423
language Japanese
File Version publisher
NAID 120006401579
JaLCDOI 10.18926/bgeou/55697
Title Alternative Analyzing the Relationship Between the Function of a Hero as a Social Reinforcer and the Effectiveness of aVideo Intervention Using the Hero as a Model
FullText URL bgeou_167_011_020.pdf
Author Takahashi, Ayaka| Ohtake, Yoshihisa|
Abstract  本研究では,知的障害特別支援学校中学部に在籍する2名の生徒を対象として,ヒーロー(特別な興味の対象)の社会的好子としての効力とビデオヒーローモデリング(VHM)の効果との関連性について検討した。まず,担任教師への面接および質問紙調査によってそれぞれの生徒のヒーローを特定した。次に,任意の課題場面においてヒーローによる称賛を非随伴的に提示し,課題遂行率の変化を測定することでヒーローの社会的好子としての機能を確かめた。その後,日常生活場面から選定された標的行動に対してVHMを実施した。その結果,どちらの生徒についてもヒーローの社会的好子としての効力が確かめられたにもかかわらず,1名の生徒にはVHMによる行動改善が観察された一方で,もう1名の生徒の行動改善は限定的であった。ヒーローからの称賛が好子として機能するとしても,そのことが必ずしもVHMによる介入効果を予想するものではないことが示唆された。
Keywords ビデオモデリング 特別な興味 自閉スペクトラム症 ダウン症候群
Publication Title Bulletin of Graduate School of Education, Okayama University
Published Date 2018-02-23
Volume volume167
Start Page 11
End Page 20
ISSN 1883-2423
language Japanese
File Version publisher
NAID 120006401578
FullText URL O0004482_abstract_review.pdf O0004482_summary.pdf O0004482_fulltext.pdf
Author Nagaoka, Yoshiharu|
Published Date 2017-12-27
Content Type Thesis or Dissertation
Grant Number 乙第4482号
Granted Date 2017-12-27
Thesis Type Doctor of Philosophy in Medical Science
Grantor 岡山大学
language English
JaLCDOI 10.18926/OER/55677
Title Alternative Self-Restructuring Process through Utilization of External Organization in Public Sector: A Preliminary Thought
FullText URL oer_049_2_075_081.pdf
Author Fujii, Daiji|
Publication Title Okayama Economic Review
Published Date 2018-02-26
Volume volume49
Issue issue2
Start Page 75
End Page 81
ISSN 2433-4146
language Japanese
Copyright Holders Copyright © 2018 岡山大学経済学会
File Version publisher
NAID 120006398876
JaLCDOI 10.18926/OER/55674
Title Alternative The Current Situation and the Issues Concerning Tutoring for International Students by WAWA Volunteer Tutors : Based on the Results of the Questionnaire for Volunteer Tutors
FullText URL oer_049_2_017_034.pdf
Author Uzuka, Mariko| Hirota, Yoko| Oka, Masumi| Fukada, Hiromi|
Abstract Uzuka and Oka (2016) studied the result of the questionnaire for international students who had tutorials by International Student Support Volunteer Group, WAWA during the period from April 2007 to March 2015 and clarified some issues such as the necessity of regular tutoring, demand to accommodate a wide variety of situations, enhancing the quality of volunteer tutors and so on. Meanwhile, a questionnaire survey for volunteer tutors was also conducted. In this paper, the authors examine the situation and the issues of tutoring for international students based on the results of this tutor survey.  A total of 113 volunteer tutors (a response rate 77.9%) responded to the survey. Research has found that periodicity, frequency and the number of items covered by tutoring are the three factors that are related to tutor satisfaction. Authors recognize statistical difficulties that there can be a mutual influence relationship among the three factors and the satisfaction of the tutors and the data used in this study are irregular repeated measurements. Based on these points of consideration, the results of this survey targeting tutors revealed that the satisfaction level of tutors who conducted periodic tutoring was significantly higher than those who did not. In addition, it was confirmed that the degree of satisfaction of tutors with more frequent tutoring was significantly higher than those with less frequent one and the satisfaction of tutors who accommodated more items was significantly higher than those who did less. Therefore, the result shows that it is the most important tasks for WAWA staff and advising teachers to build a tutoring system that can conduct periodic tutoring which offer multiple services including various living support along with Japanese language learning support at least once a week for four months.
Publication Title Okayama Economic Review
Published Date 2018-02-26
Volume volume49
Issue issue2
Start Page 17
End Page 34
ISSN 2433-4146
language Japanese
Copyright Holders Copyright © 2018 岡山大学経済学会
File Version publisher
NAID 120006398873
JaLCDOI 10.18926/OER/55673
Title Alternative Support for Big Government : Evolution of Adam Smith’s View on Taxation from Lectures on Jurisprudence to The Wealth of Nations
FullText URL oer_049_2_001_015.pdf
Author Niimura, Satoshi|
Abstract Adam Smith is well known as an archetypal, leading economist and advocate of laissez-faire capitalism. In fact, Smith analyses the autonomous mechanism of a market economy, criticises mercantile protection, and strongly advocates a free trade policy. However, a considerable number of Smith’s interpreters such as J.Viner have recognised that Smith himself offers many exceptions to laissez-faire. Interestingly, most of the exceptions are not presented in Lectures on Jurisprudence( LJ); they appear for the first time in The Wealth of Nations( WN). Rather than inconsistencies in the passing, these references seem to reflect a conscious shift in Smith’s policy principle from laissez-faire with a small government to state intervention under a big government. In WN, Smith maintains support for the laissez-faire approach only in the area of foreign trade, and prescribes state intervention in other areas such as banking, financial markets, public works and institutions, and taxation. This article focuses particularly on the evolution of Smith’s view on taxation from LJ to WN. Smith insists in LJ that taxation should be minimised so as not to interfere with the behaviour of various economic agents and the autonomous mechanism of a market economy. However, Smith renounces his fundamental idea of taxation in WN, which indicates support for the imposition of heavier taxes on the rich and reduced taxes on the poor. He proposes an increase in land tax and rejects taxes on profit and wages. He favours various types of progressive taxes and criticises regressive ones, concerning land, houses, and toll, among others. Notably, Smith strongly supports various kinds of “taxes upon the capital value of lands, houses and stock” such as succession tax, land tax, house-rent tax and“ stampduties and duties of registration” indirectly taxed on interest.
Publication Title Okayama Economic Review
Published Date 2018-02-26
Volume volume49
Issue issue2
Start Page 1
End Page 15
ISSN 2433-4146
language Japanese
Copyright Holders Copyright © 2018 岡山大学経済学会
File Version publisher
NAID 120006398872
JaLCDOI 10.18926/AMO/55671
FullText URL 72_1_95.pdf
Author Kikuchi, Satoru| Kuroda, Shinji| Nishizaki, Masahiko| Matsusaki, Takashi| Mitsuhashi, Toshiharu| Kuwada, Kazuya| Kagawa, Shunsuke| Morimatsu, Hiroshi| Fujiwara, Toshiyoshi|
Abstract Although epidural analgesia (EDA) is considered standard postoperative analgesia for open gastrectomy, it has been unclear whether EDA has benefits in laparoscopic gastrectomy (LG) because postoperative pain after a laparoscopic procedure is significantly reduced. We are conducting a two-arm, single-center, prospective randomized non-inferiority trial to evaluate the postoperative pain relief of patient-controlled intravenous analgesia (PCIA) compared to EDA. A total of 132 patients undergoing LG will be randomized to EDA and PCIA groups (n=64 each) for postoperative pain control. The primary endpoint is postoperative pain at 24 h after surgery. This study will clarify the optimal pain management after LG.
Keywords laparoscopic gastrectomy epidural analgesia patient-controlled intravenous analgesia pain relief
Amo Type Clinical Study Protocol
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 95
End Page 98
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463947
JaLCDOI 10.18926/AMO/55670
FullText URL 72_1_89.pdf
Author Yamamoto, Norio| Miki, Takaaki| Nishiyama, Akihiro| Dan’ura, Tomoyuki| Matsui, Yuzuru| Ozaki, Toshifumi|
Abstract This is the first report of extensive bilateral patellar tendon ossification occurring over a prolonged time after a unilateral knee injury. An 84-year-old Japanese man with a spinal cord injury caused by a burst fracture of the T12 vertebra presented with a bony hard prominence on the left knee, which was injured in a traffic accident when he was 77 years old. Radiography revealed extensive ossification of the bilateral patellar tendons. We review the English literature with a focus on the localization of bilateral heterotopic ossification of the knee in patients who had a central nervous system injury.
Keywords heterotopic ossification patellar tendon spinal cord injury bilateral knee injury
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 89
End Page 93
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463946
JaLCDOI 10.18926/AMO/55669
FullText URL 72_1_85.pdf
Author Kosaki, Yoshinori| Yumoto, Tetsuya| Naito, Hiromichi| Tsuboi, Nobushige| Kameda, Masahiro| Hirano, Masayuki| Morizane, Yuki| Senoo, Takaya| Tokuyama, Eijirou| Nakao, Atsunori|
Abstract Traumatic eyeball luxation is a rare clinical condition with a dramatic presentation. Here, we describe a unique case of traumatic globe luxation and complete optic nerve transection caused by heavy object compression. A 45-year-old male automobile mechanic was injured when a truck slipped from its supports, crushing his head and face. On arrival, his right eyeball was obviously displaced anteriorly and he had no light perception. Computed tomography revealed complex frontal bone and facial fractures with underlying brain contusion in addition to complete transection of the right optic nerve. The patient was successfully treated using a multidisciplinary approach.
Keywords globe luxation optic nerve avulsion traumatic brain injury facial trauma
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 85
End Page 88
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463945
JaLCDOI 10.18926/AMO/55668
FullText URL 72_1_81.pdf
Author Otani, Hiroki| Makihara, Shigeki|
Abstract Internal hernia related to paracecal hernia is a rare disease and is difficult to confirm by preoperative diagnosis. We recently encountered a case of an 83-year-old woman who had lower abdominal pain in her right quadrant. Based on physical findings and CT findings she was diagnosed as having small bowel obstruction by internal hernia around the cecum. She underwent emergency operation with laparoscopic surgery and was diagnosed with a paracecal hernia and treated laparoscopically. After we dissected the ventral wall of the hernia sac and enlarged the hernia orifice, we reduced the trapped small intestine into the abdominal space. We determined that the herniated portion of the small intestine was not necrotic and therefore did not resect it. Although paracecal hernia is a rare internal hernia, physicians should be aware of it as a differential diagnosis for small bowel obstruction because of its rapid progression to strangulation and necrosis. We highlight the importance of recognizing CT findings of paracecal internal hernia. Laparoscopy was effective both for making a definitive diagnosis and treating paracecal hernia with relatively little invasion.
Keywords paracecal hernia laparoscopic surgery internal hernia small bowel obstruction
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 81
End Page 84
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463944
JaLCDOI 10.18926/AMO/55667
FullText URL 72_1_77.pdf
Author Watanabe, Kenya| Fukuzawa, Takuma| Mitsui, Katsuhiro|
Abstract Schwannoma is the most common tumor of the peripheral nerve sheath. However, there have been few reports on schwannoma of the posterior tibial nerve causing tarsal tunnel syndrome. We report on a 60-year-old man with tarsal tunnel syndrome caused by a schwannoma of the posterior tibial nerve, which was first diagnosed as a ganglion cyst. After enucleation of this tumor, the patient was asymptomatic and had no related sequelae except for minor numbness in the plantar aspects of his digits. Although schwannoma of the posterior tibial nerve is rare, it should be considered even if a ganglion is clinically suspected.
Keywords tarsal tunnel syndrome schwannoma posterior tibial nerve
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 77
End Page 80
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463943
JaLCDOI 10.18926/AMO/55666
FullText URL 72_1_73.pdf
Author Umakoshi, Michiari| Yasuhara, Takao| Toyoshima, Atsuhiko| Sasada, Susumu| Kusumegi, Akira| Morimoto, Jun| Kin, Kyohei| Tomita, Yousuke| Date, Isao|
Abstract The spinal extradural arachnoid cyst is a rare entity. Obtaining the correct diagnosis and detecting the fistula location are critical for providing effective treatment. A 41-year-old man had numbness in the soles of his feet for 2 years with accompanying gait disturbance, and a defecation disorder. Computed tomography myelography performed at another hospital revealed an epidural arachnoid cyst from Th11 to L2. He received a subarachnoid-cyst shunt at the rostral part of the cyst. However, his symptoms worsened and he was admitted to our hospital. Neuroradiological investigations revealed the correct location of the fistula at the level of Th12. We performed partial removal of the cyst wall with fistula closure via right hemilaminectomy of Th11 and 12. The complete closure of the fistula was confirmed by intrathecal infusion of artificial cerebrospinal fluid through the shunt tube. The shunt tube was removed with the sutures. The patient’s symptoms improved, although numbness remained in his bilateral heels. There has been no recurrence in 15 months since the surgery. Fistula closure may work as a balanced therapeutic strategy for spinal extradural arachnoid cyst, and intrathecal cerebrospinal fluid infusion is useful for the confirmation of complete fistula closure.
Keywords fistula closure intrathecal infusion microscopic surgery preoperative evaluation recurrence
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 73
End Page 76
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463942
JaLCDOI 10.18926/AMO/55665
FullText URL 72_1_67.pdf
Author Watanabe, Akihisa| Ono, Qana| Nishigami, Tomohiko| Hirooka, Takahiko| Machida, Hirohisa|
Abstract It has been unclear whether the risk factors for rotator cuff tears are the same at all ages or differ between young and older populations. In this study, we examined the risk factors for rotator cuff tears using classification and regression tree analysis as methods of nonlinear regression analysis. There were 65 patients in the rotator cuff tears group and 45 patients in the intact rotator cuff group. Classification and regression tree analysis was performed to predict rotator cuff tears. The target factor was rotator cuff tears; explanatory variables were age, sex, trauma, and critical shoulder angle≥35°. In the results of classification and regression tree analysis, the tree was divided at age 64. For patients aged≥64, the tree was divided at trauma. For patients aged<64, the tree was divided at critical shoulder angle≥35°. The odds ratio for critical shoulder angle≥35° was significant for all ages (5.89), and for patients aged<64 (10.3) while trauma was only a significant factor for patients aged≥64 (5.13). Age, trauma, and critical shoulder angle≥35° were related to rotator cuff tears in this study. However, these risk factors showed different trends according to age group, not a linear relationship.
Keywords rotator cuff tears risk factor critical shoulder angle trauma classification and regression tree analysis
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 67
End Page 72
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463941
JaLCDOI 10.18926/AMO/55663
FullText URL 72_1_53.pdf
Author Yoshimura, Yuuki| Kuroda, Masahiro| Sugiantoc, Irfan| Bamgbosec, Babatunde O.| Miyahara, Kanae| Ohmura, Yuichi| Kurozumi, Akira| Matsushita, Toshi| Ohno, Seiichiro| Kanazawa, Susumu| Asaumi, Junichi|
Abstract Readout-segmented echo-planar imaging (RESOLVE) is a multi-shot echo-planar imaging (EPI) modality with k-space segmented in the readout direction. We investigated whether RESOLVE decreases the distortion and artifact in the phase direction and increases the signal-to-noise ratio (SNR) in phantoms image taken with 3-tesla (3T) MRI versus conventional EPI. We used a physiological saline phantom and subtraction mapping and observed that RESOLVE’s SNR was higher than EPI’s. Using RESOLVE, the combination of a special-purpose coil and a large-loop coil had a higher SNR compared to using only a head/neck coil. RESOLVE’s image distortioas less than EPI’s. We used a 120 mM polyethylene glycol phantom to examine the phase direction artifact.vThe range where the artifact appeared in the apparent diffusion coefficient (ADC) image was shorter with RESOLVE compared to EPI. We used RESOLVE to take images of a Jurkat cell bio-phantom: the cell-region ADC was 856×10−6mm2/sec and the surrounding physiological saline-region ADC was 2,951×10−6mm2/sec. The combination of RESOLVE and the 3T clinical MRI device reduced image distortion and improved SNR and the identification of accurate ADC values due to the phase direction artifact reduction. This combination is useful for obtaining accurate ADC values of bio-phantoms.
Keywords RESOLVE bio-phantom 3 tesla MRI apparent diffusion coefficient diffusion-weighted imaging
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 53
End Page 59
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463939