Consulta: creatorFacets:"YAMADA, Kazutaka"
Registros recuperados: 35
Data/hora: 09/06/2024 15:31:19

ミシシッピーアカミミガメに対するCTの臨床応用
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 永田, 祥代; 山田, 一孝; 上野, 博史; 古林, 与志安; 佐藤, 基佳; NAGATA, Sachiyo; YAMADA, Kazutaka; UENO, Hiroshi; KOBAYASHI, Yoshiyasu; SATO, Motoyoshi.
カメの体幹部は甲羅に覆われているため、単純Ｘ線撮影では得られる情報が少ない。そこで今回、ミシシッピーアカミミガメに対するＸ線CTによる断層撮影検査の有用性について検討した。まず基礎的検討として、臨床的に健康な6匹を用い、軟部組織、肺および骨のCT値を計測し、その結果からそれぞれの組織の観察に適したウインドウを設定した。また、病理学的検索の結果、全ての個体において肝臓の脂肪変性が認められ、肝臓のCT値が低い個体ほど変性の程度が大きく、CT値の高い個体ほど変性の程度が小さかった。このことから、肝臓のCT値の差により脂肪変性の程度を診断することが可能であった。さらに、臨床例についてCT検査を実施したところ、それぞれ、消化管内異物、肺炎および卵塞の診断が可能であった。以上の成績より、ミシシッピーアカミミガメの臨床診断において従来の単純Ｘ線撮影では読影が困難であった体幹部軟部組織について、CTにより詳細な情報を得ることが可能であった。よって、カメの臨床診断にはCTによる断層画像診断の積極的な利用が望まれる。 In turtles，conventional radiographic techniques give little information on the interna1 organs because of the density of the shell. Therefore， computed tomography (CT) was attempted in six clinically normal red-eared sliders(Trachemys scripta elegans). The CT values were measured in soft tissues such as the...
Palavras-chave: CT; CT値; 脂肪変性; カメ; 単純X線; Computed tomography; CT value; Fatty metamorphosis; Turtle; X-ray.
Ano: 2001
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2928

Investigation of the Short-Term Effect of Chemonucleolysis with Chondroitinase ABC
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMADA, Kazutaka; TANABE, Shinobu; UENO, Hiroshi; OINUMA, Akemi; TAKAHASHI, Toyomi; MIYAUCHI, Satoshi; SHIGENO, Satoshi; HIROSE, Tsuneo; MIYAHARA, Kazuro; SATO, Motoyoshi; 山田, 一孝; 宮原, 和郎.
Chondroitinase ABC (C-ABC) is expected to be a novel agent for chemonucleolysis. The effect of C-ABC was investigated by magnetic resonance (MR) and radiograph. C-ABC was administered into the lumbar intervertebral disks on the clinically normal beagles (n=5), in a dose of 50 μl (12.5 units as C-ABC). MR scans were performed pre-dose, and 1, 3, 7, 14 and 28 days after administration of C-ABC, and the signal intensity (SI) of the nucleus pulposus was measured. Radiographs were taken pre-dose, and 1, 2, 3, 4, 5, 6, 7, 14 and 28 days post-dose, to evaluate narrowing of the disk space in terms of height index (HI). In addition, the quantity of the chondroitin sulfate (CS) and the hyaluronic acid (HA) in the nucleus pulposus were measured by high performance...
Palavras-chave: Canine; Chemonucleolysis; Chondroitinase ABC (C-ABC); Height index (HI); Magnetic resonance (MR).
Ano: 2001
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4181

Use of Contrast-Enhanced CT in the Diagnosis of Abscesses in Cattle
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: LEE, Ki-Ja; KISHIMOTO, Miori; SHIMIZU, Junichiro; KOBAYASHI, Yoshiyasu; MATSUMOTO, Kotaro; SASAKI, Naoki; ISHII, Mitsuo; INOKUMA, Hisashi; IWASAKI, Toshiroh; MIYAKE, Yoh-Ichi; YAMADA, Kazutaka; 古林, 与志安; 松本, 高太郎; 佐々木, 直樹; 石井, 三都夫; 猪熊, 壽; 山田, 一孝.
We report here the non-contrast and contrast-enhanced computed tomography performed in two calves with brain abscess and multiple pulmonary abscesses with pharyngeal abscess, respectively. Contrast-enhanced computed tomography was useful in the diagnosis of these diseases in both calves. The diseases were confirmed by histopathological examination.
Palavras-chave: Abscess; Cattle; Contrast-enhanced CT; Diagnosis.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3891

Preliminary Experiment on the Suppression of Cesium Uptake into the Organs by Bentonite Using a Stable Isotope of Cesium in Calves
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山田, 一孝; 山口, 敏朗; 陳, 忠正; 稲沢, 直生実; 石井, 三都夫; 佐々木, 基樹; 木田, 克弥; 岸本, 海織; 古濱, 和久; YAMADA, Kazutaka; ISHII, Mitsuo; SASAKI, Naoki; KIDA, Katsuya.
ベントナイトのセシウム体内移行抑制効果について調べた。実験には，ホルスタイン種子牛6頭を使用し，28日の実験期間中，全頭に安定同位体の塩化セシウム（3.0mg/kg/day）を人工乳に溶解し，投与した。塩化セシウムに加えベントナイト0.5w/v％を人工乳に懸濁した投与群（n=3）と塩化セシウムのみの対照群（n=3）の2群を設定した。実験開始0，1，2，3，7，14，21および28日目に採血，28日目に骨格筋，心臓，肝臓，腎臓および糞便を採材し，ICP-MS （inductively coupled plasma mass spectrometry） によるセシウム濃度を測定した。臓器中のセシウム濃度からベントナイトの効果は明らかではなかったが，血球中セシウム濃度平均値は投与後14日まで投与群が対照群よりも低値を示した。このことから，ベントナイトによるセシウム体内移行抑制効果の可能性が示唆された。
Palavras-chave: ベントナイト; 子牛; 塩化セシウム.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3898

An Autoradiogram of Skeletal Muscle from a Pig Raised on a Farm within 20 km of the Fukushima Daiichi Nuclear Power Plant
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMAGUCHI, Toshiro; SAWANO, Kaita; FURUHAMA, Kazuhisa; MORI, Chizuo; YAMADA, Kazutaka; 山田, 一孝.
We utilized autoradiography to visualize radioactive contamination in the skeletal muscles of a pig raised within 20 km of the Fukushima Daiichi nuclear power plant following the nuclear accident. The autoradiogram of control muscle showed relatively homogenous exposure. In contrast, the autoradiogram of affected muscle showed a heterogeneous and sporadically dense imaging pattern. Photo luminescence densities of the affected and control muscles were 3.89 ± 0.67 and 2.13 ± 0.43 PSL/mm2, respectively. This difference indicated that radioactive cesium was distributed in the skeletal muscle of the affected pig.
Palavras-chave: Autoradiography; Cesium; Potassium; Radioactive contamination.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3900

Peripartum Back Fat Thickness of Multiparous Holstein-Friesian Cows with Displacement of the Abomasum or Ketosis
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMAKAWA, Kazuhiro; AOKI, Takahiro; MATSUI, Motozumi; YAMADA, Kazutaka; ISHII, Mitsuo; 滄木, 孝弘; 山田, 一孝; 石井, 三都夫.
To establish a method to predict postpartum diseases using prepartum back fat thickness (BFT), the peripartum BFTs of 54 healthy multiparous cows before calving, which were diagnosed with postpartum displacement of the abomasum (DA), clinical ketosis or subclinical ketosis were compared with those of healthy cows from 8 weeks before the expected calving date to 8 weeks after calving. The peripartum BFTs of the cows with DA or clinical ketosis were significantly higher than those of healthy cows. The peripartum BFTs of the cows with subclinical ketosis were not significantly higher than those of the healthy cows.
Palavras-chave: Back fat thickness (BFT); Clinical ketosis; Displacement of the abomasum (DA); Obese cow.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3903

CTとMRIのコントラストの違い : 断層画像の使い分けについて
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山田, 一孝; 上野, 博史; YAMADA, Kazutaka; UENO, Hiroshi.
http://www.jstage.jst.go.jp/article/dobutsurinshoigaku/12/1/12_27/_article/-char/ja/
Ano: 2003
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2926

ハタケシメジ抽出物が哺乳子牛の成長および血液学的検査値に与える影響
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 稲沢, 直生実; 山川, 和宏; 石井, 三都夫; 李, 奇子; 室谷, 直義; 池水, 智博; 山田, 一孝; ISHII, Mitsuo; YAMADA, Kazutaka.
ハタケシメジ抽出物がホルスタイン種哺乳子牛の成長および血液学的検査値に与える影響について検討した．試験群は，ハタケシメジ抽出物投与群（雌，n=5）と対照群（雌，n=5）とし，投与群には朝晩の哺乳時にハタケシメジ抽出物（160mg）3カプセルを投与した．試験期間は，出生から8週間とした．試験期間中，投与群と対照群との間で増体に差が認められず，投与群の血液学的および血清生化学検査値は対照群と同様の変化を示した．このことから，ハタケシメジ抽出物は，哺乳子牛の健康状態，増体および血液学的値に悪影響を及ぼさないと考えられた．
Palavras-chave: 子牛; ハタケシメジ抽出物; 血液学的検査; 血清生化学検査.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3890

MDCT Images of the Head of a Horse with Malignant Melanoma
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: SASAKI, Naoki; MINAMI, Takuto; YAMADA, Kazutaka; SATOH, Motoyoshi; INOKUMA, Hisashi; KOBAYASHI, Yoshiyasu; FURUOKA, Hidefumi; YAMADA, Haruo; 佐々木, 直樹; 山田, 一孝; 猪熊, 壽; 古林, 与志安; 古岡, 秀文.
A 17-year-old, gray Thoroughbred gelding was presented with recurrent epistaxis following exercise for over one year. Multidetector-row computed tomographic (MDCT) examination of the head performed under general anesthesia indicated the presence of malignant melanoma. MDCT examination revealed the exact location and size of masses in the right guttural pouch first identified by endoscopy and in the left guttural pouch unidentified by endoscopy. MDCT examination revealed the presence of a blood clot that filled the right maxillary sinus. The horse was euthanized due to poor prognosis as a riding horse and the owner's decision, and MDCT findings were confirmed by postmortem examination. MDCT is suggested as a useful technique for diagnosis of head problems...
Palavras-chave: Equine; Malignant melanoma; MDCT.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3104

画像検査によって副腎皮質機能低下症が支持された猫の1例
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 東野, 崇; 三好, 雅史; 東野, 貢; 山田, 一孝; TONO, Takashi; MIYOSHI, Masafumi; TONO, Mitsugu; YAMADA, Kazutaka.
A cat was brought to us for the treatment of depressionanorexia，and hypovolemia. We performed an adrenocortkotropic hormone( ACTH) stimulation examination，radiography，ultrasonography，and computed tomography. On the basis of clinical symptoms，a low cortisol level，microcardia.small pulmonary vessels，and small adrenal glands. the condition was diagnosed as hypoadrenocorticism. Imaging findings were useful for obtaining additional infonnation on hypoadrenocorticism. Although hypoadrenocorticism in cats extremely rare， we would recommend its consideration as a differential diagnosis for cats with  nonspecific clinical symptoms and hypovolemia. 元気消失，食欲不振を主訴とし，循環血液量低下を呈した猫にACTH （adrenocorticotropic...
Palavras-chave: Cat; Hypoadrenocorticism; Ultrasound; 猫; 副腎皮質機能低下症; 超音波.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2766

ポータブルX線撮影装置を用いた牛の Computed Radiography 画像化因子が画質に与える影響
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 岸本, 海織; 住谷, 峻; 李, 奇子; 清水, 純一郎; 山川, 和宏; 滄木, 孝弘; 羽田, 真悟; 松本, 高太郎; 石井, 三都夫; 佐々木, 直樹; 猪熊, 壽; 山田, 一孝; KISHIMOTO, Miori; SUMIYA, Takashi; LEE, Ki-Ja; SHIMIZU, Junichiro; YAMAKAWA, Kazuhiro; AOKI, Takahiro; HANEDA, Shingo; MATSUMOTO, Kotaro; ISHII, Mitsuo; SASAKI, Naoki; INOKUMA, Hisashi; YAMADA, Kazutaka.
牛臨床におけるComputed Radiography (CR) の有用性を確立するため，管球-カセッテ間距離およびImaging Plate (IP) の読み取り時間が画質に与える影響について検討した.管球-カセッテ間距離は画質の視覚的スコア(粒状性，鮮鋭性)に影響しなかった. IPの読み取り時間は画質の鮮鋭性と相関しなかったが，粒状性と相関が認められた.しかし読み取り時聞が12時間以内の場合には問題にならない程度であると考えられた.管球-力セッテ間距離を再現よく保つことが難しく， IP読み取り時間のばらつきが想定される牛の臨床画像診断においてCRは有用なX線撮影システムであると考えられた. The purpose of this study was to investigate the effect of X-ray tube-cassette distance and image scanning time on image quality to establish the benefit of Computed Radiography (CR) in bovine clinical practice. The tube-cassette distance had no effect on the visual evaluation score (graininess and sharpness). The image scanning time correlated with graininess but not sharpness. From these results，it was concluded that accidental variations in the tube-cassette...
Palavras-chave: 牛; Computed Radiography (CR); フェーデイング; Imaging Plate (IP); ポータブルX線発生装置; Bovine; Computed Radiography (CR); Fading; Imaging Plate (lP); Portable x-ray generator.
Ano: 2010
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2939

モモ抜けおよびウチモモ内部の脂肪交雑度合いの調査
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山下, 直樹; 阿佐, 玲奈; 山田, 一孝; 大井, 幹記; 口田, 圭吾; YAMADA, Kazutaka; KUCHIDA, Keigo.
枝肉購買の際にウチモモの筋肉露出面（以下，オオモモ）の状態は重要視されている．第6〜7肋骨間横断面，サーロイン部分，オオモモにおける脂肪交雑程度の関連性およびオオモモの脂肪交雑程度とウチモモ内部全体の脂肪交雑程度の関連性を画像解析ならびにCT画像を用い調査した．材料には黒毛和種去勢牛20頭のロインブロック，ウチモモブロックを使用した．脂肪面積割合についてサーロインと第6〜7横断面ロース芯での相関係数はr＝0.83と有意に高い相関を示した（P&lt;0.01）が，オオモモとサーロインでの相関係数はr＝0.46と中程度，第6〜7横断面ロース芯とオオモモでの相関係数はr＝0.32と低く，有意性は認められなかった（P&gt;0.05）．脂肪面積割合のオオモモとウチモモ内部での相関係数は，ウチモモ1枚目において中程度（r＝0.44）であったものの，その他の部位で相関係数は低かった．
Palavras-chave: ウチモモ; 画像解析; 黒毛和種; CT; モモ抜け.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4304

腫瘍の犬3症例に対するハタケシメジ抽出物の使用経験 : リンパ球数の変化について
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山田, 一孝; 喜澤, 香織; 丹羽, 理恵; 櫻井, 達也; 岸本, 海織; 清水, 純一郎; 室谷, 直義; 池水, 智博; 小嶋, 靖; YAMADA, Kazutaka; KIZAWA, Kaori; NIWA, Rie; SAKURAI, Tatsuya; KISHIMOTO, Miori; SHIMIZU, Junichiro; MUROYA, Naoyoshi; lKEMIZU, Tomohiro; KOJIMA, Yasushi.
腫瘍の犬3症例にハタケシメジ抽出物を投与し経過を観察した。肝腫瘍症例は投与開始から1カ月後に，直腸癌症例は9カ月後に死亡したが，脳腫瘍症例は23カ月経過した現在も生存している。ハタケシメジ抽出物の腫瘍に対する直接的な効果は不明であったが，3症例とも投与後に末梢血液中のリンパ球数が増加した。このことから，ハタケシメジ抽出物には犬の腫瘍症例の末梢リンパ球数を増加させる働きがある可能性が示唆された。 The clinical courses of three canine tumor cases were observed after administration of capsulated Hatakeshimeji extract (Lyophyllum decastes Sing.). The liver tumor case died one month after administration of the ectract，the rectal carcinoma case in nine months. but the brain tumor case is alive for 23 months. However it is unclear what directly effect the administration Hatakeshimeji has on a tumor，the number of lymphocytes increased after the administration of Hatakeshimeji in all thrεe cases. Therefore，it suggests that Hatakeshimeji plays a role in...
Palavras-chave: 犬; ハタケシメジ抽出物; リンパ球; Dog; Hatakeshimeji (Lyophyllum decastes Sing.); Lymphocyte.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2927

牛枝肉における歩留補正に菱形筋を用いる妥当性の検討
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山下, 直樹; 阿佐, 玲奈; 山田, 一孝; 大井, 幹記; 口田, 圭吾; YAMADA, Kazutaka; KUCHIDA, Keigo.
牛枝肉格付の歩留補正には菱形筋露出度が参考にされることがあり，その妥当性を検討するため，菱形筋面積の推移を調査した．材料には黒毛和種45頭の第6〜7横断面の高精細画像，第7肋骨頭側始端および第7肋骨尾側終端のCT画像を用い，各画像で菱形筋面積を算出した．その後，第6〜7横断面の菱形筋面積を第7肋骨始端の菱形筋面積で除すことで菱形筋面積の比率を算出した．菱形筋面積は第6〜7横断面から第7肋骨終端に向かうに連れて減少していた．さらに第7肋骨終端では全ての個体で菱形筋面積が10cm2以下まで縮小し，うち11個体では消滅していた．また，第6〜7横断面から第7肋骨始端までの距離が遠いほど菱形筋面積の比率も大きくなっており，切開位置が第7肋骨から遠いほど第6〜7横断面における菱形筋面積が大きい部分が露出していた．したがって切開位置によって露出度合いが異なる菱形筋を歩留補正に用いることは妥当ではないと考えられた．
Palavras-chave: 黒毛和種; CT; 菱形筋; 歩留補正; 牛枝肉格付.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4303

Effect of Compound of Gelatin Hydrogel Microsphere Incorporated with Platelet-Rich-Plasma and Alginate on Sole Defect in Cattle
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: TSUZUKI, Nao; SEO, Jong-Pil; YAMADA, Kazutaka; HANEDA, Shingo; TABATA, Yasuhiko; SASAKI, Naoki; 羽田, 真悟; 佐々木, 直樹.
Platelet-rich plasma (PRP) was administered to cattle with hoof defects (10-mm drill hole) to promote sole defect healing. Two types of gels were prepared. One was a mixed gel [compound of gelatin microspheres (GM) incorporated with PRP and alginate] and was used for the test group, while the other was an alginate gel used for the control group. Each hole was filled with one of these gels. The drill hole depth, pressure pain, and hardness of the regenerated tissue were measured for 3 weeks after treatment. These measurements improved significantly in the test group than in the control group. The results suggest that a compound of GM incorporated with PRP and alginate had a hoof-regenerating effect in cattle.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3889

脳幹部膿瘍により神経症状を呈したホルスタイン種子牛の1 例
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 松本, 高太郎; 村上, 智亮; 菅生, 樹春; 山田, 一孝; 古林, 与志安; 松井, 高峯; 猪熊, 壽; MATSUMOTO, Kotaro; MURAKAMI, Tomotaka; SUGO, Kiharu; YAMADA, Kazutaka; KOBAYASHI, Yoshiyasu; MATSUI, Takane; INOKUMA, Hisashi.
17日齢のホルスタイン種雌子牛が，神経症状を示した. 病畜は頭部を左後方に折り曲げて伏臥姿勢を示し，時折自力で起立したがすぐに倒れ歩行不能であった.　神経学的検査では右の対光反射，威嚇瞬き反射，眼瞼反射， および音響耳介反射が消失していた.　ビタミンB1，およびデキサメサゾンの投与により第7病日に歩行可能となったものの左への斜頸・旋回が認められ，神経学的検査所見に改善は認められなかった.　第7病日に病理解剖を行い，肉眼的には橋の断面右側に直径1cm大の膿瘍を認め，嫌気培養にてFusobacterium necrophorumが検出された.　左側への斜頸，聴覚の消失等の脳神経疾状は，橋の右側の膿瘍により内耳神経等の脳神経核が圧迫された結果出現した聴覚障害，平衡障害のためと考えられた. A 17-day-0ld female Holstein calf exhibited the following neurological symptoms: the calf bent its neck to the left，turning its face backward and could stand alone，but would fall within a short time. Neurological examination further revealed losses of pupillary light reflex， menace response，palpebral reflex，and hearing on the right side. After administration of dexamethasone and vitamin B1，the calf was able to walk...
Palavras-chave: 脳幹部膿瘍; 牛; Fusobacterium necrophorum; Brain stem abscess; Cattle.
Ano: 2010
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2945

Pilot Study of Bovine Interdigital Cassetteless Computed Radiography
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: El-Sayed Ahmed Awad EL-SHAFAEY1) 2); AOKI, Takahiro; ISHII, Mitsuo; YAMADA, Kazutaka; 滄木, 孝弘; 石井, 三都夫; 山田, 一孝.
Twenty-one limbs of bovine cadavers (42 digits) were exposed to interdigital cassetteless imaging plate using computed radiography. The radiographic findings included exostosis, a rough planta surface, osteolysis of the apex of the distal phalanx and widening of the laminar zone between the distal phalanx and the hoof wall. All these findings were confirmed by computed tomography. The hindlimbs (19 digits) showed more changes than the forelimbs (10 digits), particularly in the lateral distal phalanx. The cassetteless computed radiography technique is expected to be an easily applicable method for the distal phalanx rather than a conventional cassette-plate and/or the film-screen cassetteless methods.
Palavras-chave: Bovine; Cassetteless; Computed radiography; Interdigital.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3899

Experimental investigation of bone mineral density in Thoroughbreds using quantitative computed tomography
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMADA, Kazutaka; SATO, Fumio; HIGUCHI, Tohru; NISHIHARA, Kaori; KAYANO, Mitsunori; SASAKI, Naoki; NAMBO, Yasuo.
Bone mineral density (BMD) is one of the indications of the strength and health. BMD measured by quantitative computed tomography (QCT) was compared with that measured by dual energy X-ray absorptiometry (DXA) and radiographic bone aluminum equivalence (RBAE). Limbs were removed from horses that had been euthanized for reasons not associated with this study. Sixteen limbs (left and right metacarpals and metatarsals) from 4 horses were used to compare BMD as measured by QCT with those measured by DXA and RBAE. There was a strong correlation between BMD values measured by QCT and those measured by DXA (R2=0.85); correlation was also observed between values obtained by QCT and those obtained by RBAE (R2=0.61). To investigate changes in BMD with age, 37 right...
Palavras-chave: Bone mineral density; Dual energy X-ray absorptiometry; Quantitative computed tomography; Radiographic bone aluminum equivalence; Thoroughbred.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4182

Brain Abscess in a Japanese Black Calf : Utility of Computed Tomography (CT)
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: EL-KHODERY, Sabry; YAMADA, Kazutaka; AOKI, Daisuke; KAMIO, Kyouhei; KISHIMOTO, Miori; SHIMIZU, Junichiro; KOBAYASHI, Yoshiyasu; ISHII, Mitsuo; INOKUMA, Hisashi; YAMAUCHI, Sen-ichi; MATSUI, Takane; 山田, 一孝; 古林, 与志安; 石井, 三都夫; 猪熊, 壽.
Computed tomography (CT) was used for diagnosis of brain abscess in a 6-month-old, Japanese black calf presented with neurological dysfunction, compulsive circling and vision disturbance. CT images showed asymmetric lateral ventricles, and presence of intra-cranial multiple low absorption lesions surrounded by capsule suggestive of abscess in the right cerebral hemisphere. Postmortem examination revealed marked swelling of right cerebral hemisphere and olfactory bulb. Multilocular large abscess containing creamy pus was found to occupy most area of periventricular and lateral ventricle. Fusobacterium necrophrum was isolated from the abscess contents as the causative agent. These results demonstrate that CT is useful tool for tentative diagnosis of bovine...
Palavras-chave: Bovine; Brain abscess; CT.
Ano: 2008
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3926

Computed Tomographyを用いた黒毛和種胸最長筋におけるあらい脂肪交雑の推移
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山下, 直樹; 山口, 悠; 阿佐, 玲奈; 山田, 一孝; 大井, 幹記; 口田, 圭吾; YAMADA, Kazutaka; KUCHIDA, Keigo.
黒毛和種胸最長筋のCT画像を用いて最もあらい脂肪交雑割合の推移を調査した．供試牛は黒毛和種去勢牛46頭であり，27〜29ヵ月齢で屠畜された．リブロースブロック（第7〜12肋骨間）について屠畜から約1週間後にCT撮影を行い，画像解析によって最もあらい脂肪交雑割合（%）を算出した．CT画像を筋肉頭側，筋肉尾側，肋骨頭側，肋骨尾側の4つの位置に分類し，1頭のブロック肉毎にそれぞれの位置で最大の値を代表値とした．最もあらい脂肪交雑割合の位置ごとの平均は筋肉頭側，筋肉尾側，肋骨頭側，肋骨尾側でそれぞれ7.4，5.6，5.1および6.7%となり，筋肉頭側は筋肉尾側および肋骨尾側と比較して2%程度最もあらい脂肪交雑割合が高く（P &lt; 0.05），肋骨尾側は肋骨頭側と比較して1.6%高かった（P &lt; 0.05）．また，最もあらい脂肪交雑割合の種雄牛による差はほとんど見られなかったことから，極端にあらい脂肪交雑は種雄牛に関わらず発生することが示された．
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4249

犬に対する脊髄造影手技が脊髄におよぼす影響についてウサギを用いた基礎的検討
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山田, 一孝; 河合, ちひろ; 井芹, 俊恵; 岸本, 海織; 上野, 博史; 古林, 与志安; YAMADA, Kazutaka; KAWAI, Chihiro; ISERI, Toshie; KISHIMOTO, Miori; UENO, Hiroshi; KOBAYASHI, Yoshiyasu.
脊髄造影後の後遺障害発生のメカニズムについて、脊髄終末が犬より尾側に位置するウサギを用いて、行動観察、神経学的および病理組織学的に検討した。実験にはウサギ（n=12）を使用し、実験群は、(1)脊髄穿刺群、(2)生理的食塩水注入群、(3)等浸透圧ヨード造影剤イオジキサノール注入群、(4)低浸透圧ヨード造影剤イオヘキソール注入群とした。全身麻酔下で第5-6腰椎間より脊髄穿刺あるいは薬液を脊髄実質内に直接注入し、処置48時間後に行動観察および神経学的検査を、72時間後に病理組織学的検査を行うとともに、切片上での損傷面積率について評価した。神経学的検査では生理的食塩水注入群、イオジキサノール注入群およびイオヘキソール注入群で異常が認められた。また、穿刺部位の脊髄損傷面積率についても脊髄穿刺群と生理的食塩水注入群との間に明らかな差異が認められた。本研究の結果から、脊髄への薬液注入による組織の圧迫は、脊髄造影後の後遺障害を発生させる要因と考えられた。今後、脊髄造影を行う際には、脊髄針からの脳脊髄液の逆流を必ず確認し、造影剤の実質内注入を疑った場合には直ちに検査を中止することを提案する。なお、将来は獣医臨床における、より安全な脊髄造影手技の開発が望まれる。 The purpose of this experiment is to characterize the aftereffects of myelography of canine spinal cords using rabbits，since the distal end of the spinal cord of rabbits is more caudal than that of dogs. Twelve healthy New Zealand White...
Palavras-chave: 造影剤; 脊髄造影; ウサギ; 脊髄; Contrast agent; Myelography; Rabbit; Spinal cord.
Ano: 2003
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2930

Marbling evaluation by using X-ray computed tomography on beef primal cuts
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 口田, 圭吾; 高長, 拓也; 山下, 直樹; 山口, 悠; 李, 奇子; 山田, 一孝; KUCHIDA, Keigo; YAMADA, Kazutaka.
X線Computed Tomography（CT）画像から牛部分肉における脂肪交雑の評価の可能性およびその精度を検証した．供試牛2頭から胸最長筋を含む8つのブロック肉を採取しCT撮影を行った．その後，ブロック肉を厚さ2cm間隔でスライスし，ミラー型撮影装置を用いて高精細画像を得た．CT画像および高精細画像（同一面60組）をそれぞれ画像解析し，画像解析4形質（筋肉面積，脂肪面積割合，あらさ指数，細かさ指数）について，それぞれの相関関係を調査した．CT画像と高精細画像から算出した筋肉面積（r＝0.991），脂肪面積割合（r＝0.927）およびあらさ指数（r＝0.861）の相関係数は有意に高い正の値を示した（P＜0.01）．細かさ指数では低い相関係数（r＝0.329，P＜0.05）が算出された．X線CT法は，非破壊的に脂肪交雑の面積割合やあらさをある程度，評価することが可能であった．
Palavras-chave: Computed tomography; Image analysis; Japanese Black.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4081

Mobility of the forearm in the raccoon (Procyon lotor), raccoon dog (Nyctereutes procyonoides) and red panda (Ailurus fulgens)
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: KAMIOKA, Minao; SASAKI, Motoki; YAMADA, Kazutaka; ENDO, Hideki; OISHI, Motoharu; YUHARA, Kazutoshi; TOMIKAWA, Sohei; SUGIMOTO, Miki; OSHIDA, Tatsuo; KONDOH, Daisuke; KITAMURA, Nobuo; 佐々木, 基樹; 押田, 龍夫; 近藤, 大輔; 北村, 延夫.
The ranges of pronation/supination of forearms in raccoons, raccoon dogs and red pandas were nondestructively examined. Three carcasses of each species were used for CT analysis, and the left forearms were scanned with a CT scanner in two positions: maximal supination and maximal pronation. Scanning data were reconstructed into three-dimensional images, cross-sectional images were extracted at the position that shows the largest area in the distal part of ulna, and then, the centroids of each cross section of the radius and ulna were detected. CT images of two positions were superimposed, by overlapping the outlines of each ulna, and then, the centroids were connected by lines to measure the angle of rotation, as an index of range of mobility. The...
Palavras-chave: Forearm; Raccoon; Raccoon dog; Red panda; Rotation.
Ano: 2017
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4394

Early-Stage Bioassay for Monitoring Radioactive Contamination in Living Livestock
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMAGUCHI, Toshiro; SAWANO, Kaita; KISHIMOTO, Miori; FURUHAMA, Kazuhisa; YAMADA, Kazutaka; 山田, 一孝.
Soil samples from the ground surface and feces and blood from a mixed-breed male pig were collected on April 10, 2011 at a farm within 20 km of the Fukushima Daiichi nuclear power plant. The radioactivity of each sample was measured using a Ge semiconductor detector. Despite the fact that the pig had been fed non-contaminated imported feed, 131I, 134Cs and 137Cs were detected in the feces, and 134Cs and 137Cs were detected in the blood clots. Because it is considerably difficult to measure radioactive contamination in the edible muscle of living livestock, bioassays are an option for the screening of radioactive contamination in living livestock to ensure food safety.
Palavras-chave: Bioassay; Cesium; Fukushima; Iodine; Radioactive contamination.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3893

産業動物におけるCT の利用
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 山田, 一孝; YAMADA, Kazutaka.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3882

A Clinical Case of Maxillary Sinus Abscess in a Holstein Cow
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 髙橋, 英二; 山田, 一孝; 古林, 与志安; 猪熊, 壽; TAKAHASHI, Eiji; YAMADA, Kazutaka; KOBAYASHI, Yoshiyasu; INOKUMA, Hisashi.
7歳6カ月齢のホルスタイン種乳牛が顕著ないびき音を呈し，さらに左側頬骨部の一部で波動感を有する腫瘤が触知された．頭部X線検査により上顎洞内への液体貯留と上顎第3後臼歯の歯槽骨の融解が認められ，歯性上顎洞炎に継発する大型膿瘍であることが推察された．病理解剖により病変は上顎洞内膿瘍であることが明らかとなった．牛における頭部X線検査が上顎洞内膿瘍の診断及び病態の把握に有用であった．
Palavras-chave: ホルスタイン; 上顎洞内膿瘍; 歯性上顎洞炎.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4257

Evaluation of Motion Correction Processing in Equine Bone Scintigraphy by Scheffé’s Method of Paired Comparisons
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMAGUCHI, Toshiro; ENDO, Yoshiro; NAMBO, Yasuo; SATO, Fumio; SASAKI, Naoki; YAMADA, Kazutaka; 南保, 泰雄; 佐々木, 直樹; 山田, 一孝.
Equine bone scintigraphy is usually performed with horses in standing position under sedation. However, swaying motion often leads to poor-quality images. To examine the usefulness of motion correction (MC) processing, equine bone scintigrams were evaluated using Scheffé’s method of paired comparisons. A significant difference in evaluation scores was detected by analysis of variance (F test, P&lt;0.01). According to all observers, Yardstick analysis scores were higher for images use of MC processing than for those no use of MC processing, for all parts. Overall scores of 5 observers were as follows: without MC 100% acquisition time (AT, lowest), use of MC with 25% AT, MC 50% AT, MC 75% AT and MC 100% AT (highest). Thus, MC processing shortens AT in equine...
Palavras-chave: Bone scintigraphy; Equine; Motion correction; Scheffé’s method of paired comparisons.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3894

乳牛と新生子牛の血中ビタミンB1、B2、B6およびB12濃度
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 佐藤, 基佳; 佐々木, 雄介; 望月, 均; 上野, 博史; 山田, 一孝; 大谷, 昌之; SATO, Motoyoshi; SASAKI, Yusuke; MOTIDUKI, Hitoshi; UENO, Hiroshi; YAMADA, Kazutaka; OTANI, Masayuki.
乳牛のビタミンB群製剤の適正な補給を目的に、健康牛（泌乳中期および乾乳期）と新生子牛のビタミンB1、B2、B6、B12の血中濃度を測定した。泌乳中期群(n=5)ではB1、B2、B6、B12の血中濃度は51.2±1.2ng/ml、92.1±3.9ng/ml、37.8±1.7ng/ml、220.2±16.3pg/ml、乾乳期群(n=4)では39.5±3.3ng/ml、75.2±4.6ng/ml、42.6±2.2ng/ml、406.8±48.1pg/mlで、泌乳中期群と比較してB1、B2で低値、B12で高値（p&lt;0.05)を示した。新生子牛群(n=9)では、出生直後のビタミンB1、B2、B6、B12の血中濃度は47.0±3.6ng/ml、169.9±6.7ng/ml、4.1±0.2ng/ml、357.4±44.2pg/mlで、生後20日目では30.0±1.4ng/ml、130.9±6.4ng/ml、16.5±0.6ng/ml、230.4±13.9pg/mlを示し、ビタミンB6を除くビタミンB群の血中濃度は生後漸減した。 　以上の成績から飼養状況および個体の状況により血中濃度が異なるため、適正な補給に当たっては対象牛のビタミンB群の血中濃度を把握し、今回の測定値を参考として適量の薬用量の決定が必要であると考えられた。Blood concentrations of the vitamin B  complex (B1，B2，B6，and B12) were measured in healthy cows both during the lactation period and during the non-lactation period，and in calves from 1 to 20 days...
Palavras-chave: 乳牛; 予防; 治療; ビタミンB群; Dairy cattle; Prevention; Treatment; Vitamin B complex.
Ano: 2003
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2931

Experimental assessment of bone mineral density using quantitative computed tomography in Holstein dairy cows
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: MAETANI, Ayami; ITOH, Megumi; NISHIHARA, Kahori; AOKI, Takahiro; OHTANI, Masayuki; SHIBANO, Kenichi; KAYANO, Mitsunori; YAMADA, Kazutaka; 伊藤, めぐみ; 滄木, 孝弘; 芝野, 健一; 茅野, 光範; 山田, 一孝.
The aim of this study was to assess the measurement of bone mineral density (BMD) by quantitative computed tomography (QCT), comparing the relationships of BMD between QCT and dual-energy X-ray absorptiometry (DXA) and between QCT and radiographic absorptiometry (RA) in the metacarpal bone of Holstein dairy cows (n=27). A significant positive correlation was found between QCT and DXA measurements (r=0.70, P&lt;0.01), and a significant correlation was found between QCT and RA measurements (r=0.50, P&lt;0.01). We conclude that QCT provides quantitative evaluation of BMD in dairy cows, because BMD measured by QCT showed positive correlations with BMD measured by the two conventional methods: DXA and RA.
Palavras-chave: Bone mineral density; Dairy cow; Dual-energy X-ray absorptiometry; Quantitative computed tomography; Radiographic absorptiometry.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4321

Basic Assessment of Diagnosis by MDCT in Horses
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: SASAKI, Naoki; KIKUCHI, Takuya; YAMADA, Kazutaka; HIGUCHI, Tohru; SATO, Motoyoshi; YAMADA, Haruo; 佐々木, 直樹; 山田, 一孝.
In this equine study, we used an MDCT unit and a trestle for large animals to assess the utility of MDCT in the diagnosis locomotor system disorders and problems in the head and spine. We used a mature thoroughbred horse under general anesthesia and 5 specimens. For specimens, MDCT images were compared with other images taken by a computed radiography X-ray unit. In the live horse, use of the trestle for large animals enabled scanning under general anesthesia. In specimens, MDCT created 3D images of the fractured lesions and evaluation of multiple cross-sectional and sagittal images was possible. Further, multiple sagittal images and virtual endoscopic images revealed details of a spinal canal stenosis in the swayback case. These results indicate that MDCT...
Palavras-chave: Equine; Locomotor system disorders; MDCT; 3D image analysis.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3103

Radioactive Contamination of a Pig Raised at a Farm within 20 km of the Fukushima Daiichi Nuclear Power Plant
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMADA, Kazutaka; YAMAGUCHI, Toshiro; SAWANO, Kaita; KISHIMOTO, Miori; FURUHAMA, Kazuhisa; 山田, 一孝; 山口, 敏朗; 澤野, 海太; 岸本, 海織; 古濱, 和久.
福島第一原子力発電所から20km圏内で飼育されていた交雑種豚が，事故17日後に清浄区域へ移動し，移動41日後に試料が採材された。Ge半導体検出器を用いて，バラ，モモ，ロース及び心臓のγ線スペクトルを測定したところ，放射性セシウムの存在が確認された。被検豚は移動前後ともに豚舎で飼育され，生涯汚染のない輸入飼料で飼養されていた。牛肉の放射能汚染の原因は汚染された稲藁と報道されているが，稲藁だけが汚染の原因ではない可能性がある。次世代のために，食の安全の観点から牛肉のみならず他の畜産物についても監視が必要である。
Palavras-chave: Caesium; Food safety; Fukushima; Pig; Pork; Radioactive contamination.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3827

ハタケシメジ抽出物によるカルボプラチン投与後の白血球数減少抑制作用についての基礎的研究
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 清水, 純一郎; 持田, 恭平; 岸本, 海織; 李, 奇子; 池水, 智博; 室谷, 直義; 小嶋, 靖; 山田, 一孝; SHIMIZU, Junichiro; MOCHIDA, Kyohei; KISHIMOTO, Miori; LEE, Ki-Ja; IKEMIZU, Tomohiro; MUROYA, Naoyoshi; KOJIMA, Yasushi; YAMADA, Kazutaka.
ハタケシメジ抽出物の白血球数調節作用を調べる目的でハタケシメジ抽出物を経口投与し，カルボプラチン投与後の骨髄抑制作用の違いを5週間にわたる経時的な血液検査により検討した。その結果，総白血球数および好中球数においてハタケシメジ抽出物投与群がプラセボ投与群に対して有意に高値を示した。このことより，カルボプラチンによる骨髄抑制に対して，ハタケシメジ抽出物が白血球数減少抑制作用を有することが確認された。 In order to elucidate the suppressive  effect of Hatakeshimeji (Lyophyllum decastes Sing.) extract on leukocytopenia，the degree of carboplatin-induced myelosuppression was compared between two groups of dogs; each group was daily given Hatakeshimeji extract or only its placebo for 5 weeks，and on day 7， carboplatin，an anticancer agent，was given intravenously to all dogs. Hematological analyses revealed that the nunbers of leukocytes and neutrophils were both significantly higher in the group given Hatakeshimeji extract than in the placebo group. This indicated...
Palavras-chave: カルボプラチン; 犬; ハタケシメジ抽出物; Carboplatin; Dog; Hatakeshimeji extract.
Ano: 2008
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2929

海外における馬の核医学検査の実際と日本の将来展望
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: YAMADA, Kazutaka.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4264

Growth, hematologic and serum biochemical effects of hatakeshimeji (Lyophyllum decastes Sing.)extracts in calves
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 稲沢, 直生実; 山川, 和宏; 石井, 三都夫; 李, 奇子; 室谷, 直義; 池水, 智博; 山田, 一孝; ISHII, Mitsuo; YAMADA, Kazutaka.
ハタケシメジ抽出物がホルスタイン種哺乳子牛の成長および血液学的検査値に与える影響について検討した．試験群は，ハタケシメジ抽出物投与群（雌，n=5）と対照群（雌，n=5）とし，投与群には朝晩の哺乳時にハタケシメジ抽出物（160mg）3カプセルを投与した．試験期間は，出生から8週間とした．試験期間中，投与群と対照群との間で増体に差が認められず，投与群の血液学的および血清生化学検査値は対照群と同様の変化を示した．このことから，ハタケシメジ抽出物は，哺乳子牛の健康状態，増体および血液学的値に悪影響を及ぼさないと考えられた．
Palavras-chave: 子牛 ハタケシメジ抽出物; 血液学的検査 血清生化学検査.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4207

帯広畜産大学 第3回公開総合臨床学実習(馬専攻・牛専攻)の概要
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: 佐々木, 直樹; 山田, 一孝; 石井, 三都夫; 松井, 基純; 羽田, 真悟; 松本, 高太郎; 古岡, 秀文; 古林, 与志安; 猪熊, 壽; SASAKI, Naoki; YAMADA, Kazutaka; ISHII, Mitsuo; Matsui, Motozumi; HANEDA, Shingo; Matsumoto, Kotaro; FURUOKA, Hidefumi; KOBAYASHI, Yoshiyasu; INOKUMA, Hisashi.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4378