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| Registros recuperados: 35 | |
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| 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... |
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Palavras-chave: Equine; Locomotor system disorders; MDCT; 3D image analysis. |
| Ano: 2007 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3103 |
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| 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... |
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Palavras-chave: Bovine; Brain abscess; CT. |
| Ano: 2008 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3926 |
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| 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. |
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Palavras-chave: Bioassay; Cesium; Fukushima; Iodine; Radioactive contamination. |
| Ano: 2012 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3893 |
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| 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 |
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| 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<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... |
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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 |
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| 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<0.01), and a significant correlation was found between QCT and RA measurements (r=0.50, P<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. |
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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 |
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| 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... |
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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 |
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| 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... |
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Palavras-chave: Equine; Malignant melanoma; MDCT. |
| Ano: 2007 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3104 |
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| 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... |
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Palavras-chave: Forearm; Raccoon; Raccoon dog; Red panda; Rotation. |
| Ano: 2017 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4394 |
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| 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. |
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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 |
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| 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。 |
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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 |
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| 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。 |
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Palavras-chave: Caesium; Food safety; Fukushima; Pig; Pork; Radioactive contamination. |
| Ano: 2012 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3827 |
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| Registros recuperados: 35 | |
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