Search Results:  1-20 of 1414

  • 1

    EFFECT OF HYPERVENTILATION-INDUCED DECREASE IN CEREBRAL BLOOD FLOW ON COGNITIVE FUNCTION IN HEALTHY STUDENTS  [in Japanese]

    TSUKAMOTO Hayato , HASHIMOTO Takeshi , HIRASAWA Ai , HASEGAWA Hiroshi , OGOH Shigehiko

    Japanese journal of physiological anthropology 19(4), 225-232, 2014-11-25

    CiNii Fulltext PDF - Open Access 

  • 2

    Induction of alloantigen-specific CD4+ T regulatory Type 1 cells by alloantigen immunization and ultraviolet-B irradiation: a pilot study in murine transplantation models with skin and cardiac allografts.

    Hori Tomohide , Kuribayashi Kagemasa , Saito Kanako , Wang Linan , Torii Mie , Uemoto Shinji , Kato Takuma

    … [Material and Methods]: B6 mice (H-2^b) were intravenously immunized by splenocytes from CBF1 mice (H-2^b/d). …

    Annals of transplantation 19, 519-536, 2014-10-17

    IR CrossRef

  • 3

    Effects of dexmedetomidine on cerebrovascular circulation and intracranial pressure in anesthetized rabbits

    Ando Kayoko , Shibata Hiroki , Momota Yoshihiro

    … Dexmedetomidine hydrochloride (Dex) was administered to rabbits to investigate its effect on mean arterial pressure (MAP), regional cerebral blood flow (r-CBF), and intracranial pressure (ICP). … The animals were exsanguinated immediately after the Dex 30 infusion to observe changes in MAP and r-CBF. … r-CBF decreased from baseline significantly at 30 min with Dex 10 and after 10 min with Dex 30. …

    Journal of Osaka Dental University 48(2), 111-116, 2014-10

    CiNii Fulltext PDF - Open Access 

  • 4

    Utility of Early Post-treatment Single-Photon Emission Computed Tomography Imaging to Predict Outcome in Stroke Patients Treated with Intravenous Tissue Plasminogen Activator

    Abumiya Takeo , Katoh Masahito , Moriwaki Takuya , Yoshino Masami , Aoki Takeshi , Imamura Hiroyuki , Aida Toshimitsu , Scichinohe Hideo , Nakayama Naoki , Kazumata Ken , Houkin Kiyohiro

    … We assessed cerebral blood flow (CBF) of tPA-treated patients with single-photon emission computed tomography (SPECT) 1 hour after tPA infusion to predict the patient outcome. … Asymmetry index, a contralateral-to-ipsilateral ratio of CBF, was calculated to analyze CBF quantitatively. …

    Journal of Stroke & Cerebrovascular Diseases 23(5), 896-901, 2014-05

    IR CrossRef

  • 5

    Cognitive functions in Parkinson's disease: Relation to disease severity and hallucination

    Wakamori Takaaki , Agari Takashi , Yasuhara Takao , Kameda Masahiro , Kondo Akihiko , Shinko Aiko , Sasada Susumu , Sasaki Tatsuya , Furuta Tomohisa , Date Isao

    … Objective: We wished to relate severity of Parkinson's disease (PD) with cognitive function in relation to cerebral blood flow (CBF). … We used Mini-Mental State Examination (MMSE) and Wechsler Adult Intelligence Scale-Third edition (WAIS-III) to evaluate cognitive functions, and three-dimensional stereotactic ROI template (3DSRT) and Statistical Parametric Mapping (SPM) 8 to evaluate single photon emission CT (SPECT) recordings of regional CBF. …

    Parkinsonism and Related Disorders 20(4), 415-420, 2014-04

    IR CrossRef

  • 6

    Neuronal Activity in the Subthalamic Cerebrovasodilator Area under Partial-Gravity Conditions in Rats

    Zeredo Jorge L. , Toda Kazuo , Kumei Yasuhiro

    … In this study, we recorded in rats the neuronal activity in the subthalamic cerebrovasodilator area (SVA), a key area that controls cerebral blood flow (CBF), in response to partial gravity. … The lunar gravity (0.16 g) might thus trigger neurogenic mechanisms of CBF control. …

    Life 4(1), 107-116, 2014-03-04

    IR CrossRef

  • 7

    Temporal evolution of rat MRI images until three days after transient middle cerebral artery occlusion  [in Japanese]

    中村 和浩 , 河村 純子 , 近藤 靖 [他]

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 113(409), 69-72, 2014-01-24

  • 8

    Temporal evolution of rat MRI images until three days after transient middle cerebral artery occlusion  [in Japanese]

    NAKAMURA Kazuhiro , KAWAMURA Junko , KONDOH Yasushi , MIYATA Hajime , KINOSHITA Toshibumi

    … ルラットでは,再灌流数日後に虚血側において正常側の数倍におよぶ脳血流量(CBF)増加が観察される.この原因を検討するため,40匹のtMCAOモデルラットについて,再灌流後3日間にわたりMRIを用いて,T1画像,T2画像,見かけ上の拡散係数(ADC)画像を測定した.その結果,24時間後のADC値,TI値と脳血流量上昇率に相関を認め,脳血流量の増大には,組織障害に応じたCBF調整能の変化も関与する可能性があることを示した. …

    IEICE technical report. ME and bio cybernetics 113(409), 69-72, 2014-01-17

    CiNii Fulltext PDF - Limited 

  • 9

    A Technical Perspective for Understanding Quantitative Arterial Spin-labeling MR Imaging using Q2TIPS

    NOGUCHI Tomoyuki , NISHIHARA Masashi , HARA Yukiko , HIRAI Tetsuyoshi , EGASHIRA Yoshiaki , AZAMA Shinya , IRIE Hiroyuki

    … We illustrate the fundamental theoretical principles of arterial spin-labeling (ASL) magnetic resonance imaging (MRI) and show a system that employs the second version of quantitative imaging of perfusion using a single subtraction (Q2TIPS) to quantify cerebral blood flow (CBF). … We also discuss the effects of the parameters used in Q2TIPS on CBF values as measured with ASL-MRI. …

    Magnetic Resonance in Medical Sciences, 2014

    J-STAGE CrossRef

  • 10

    Cerebral hyperperfusion after carotid endarterctomy is associated with preoperative hemodynamic impairment and intraoperative cerebral ischemia  [in Japanese]

    Komoribayashi Nobukazu

    頸動脈内膜剝離術後過灌流は,脳内出血や高次脳機能障害をもたらす原因とされている.この術後過灌流を予知するため,これまで様々な検討が行われてきた.慢性脳虚血による術前脳循環予備能の低下に加え,術中の内頸動脈遮断による脳虚血が,術後過灌流の発生に関連しているか否かにつき検討した.対象は頸動脈内膜剝離術を施行した頸部内頸動脈狭窄症患者89 例.脳血流量を術前および術直後にSPECT にて定量的に測定した …

    Cerebral Blood Flow and Metabolism (Japanese journal of cerebral blood flow and metabolism) 25(2), 97-99, 2014

    J-STAGE CrossRef

  • 11

    Quantitative assessment of brain perfusion and metabolism using PET and molecular imaging  [in Japanese]

    Okazawa Hidehiko

    ポジトロンCT(PET)は,開発当初から脳循環代謝計測に用いられ,ヒト脳機能計測の代表的なモダリティーであった.近年脳賦活検査が機能的MRI (fMRI)で行われるようになり,刺激に伴う脳活動の定量的変化はMRI で主に計測されるようになったが,脳血流量やエネルギー代謝の定量測定は,依然脳PET が主役といえる.2000 年代に入り,受容体・トランスポーターイメージングが一般臨床でも用いられるよう …

    Cerebral Blood Flow and Metabolism (Japanese journal of cerebral blood flow and metabolism) 25(2), 85-90, 2014

    J-STAGE CrossRef

  • 12

    Individuality of cerebral blood flow autoregulation in rats confirmed by mathematical model simulation of brain blood vessels  [in Japanese]

    Nakamura Kazuhiro , Kondoh Yasushi , Mizusawa Shigenori , Kinoshita Toshibumi

    … ラットを用いた脳血流量(CBF)自動調節能の計測では,自動調節能を示す血圧範囲で,緩やかなCBF 変化を示す個体が複数観察されるなど,CBF 自動調節能には個体差があることが知られている.我々は,このCBF 自動調節能の個体差について,血管平滑筋の機械モデルを用いたシミュレーション手法により解釈できるのではないかと考えた.シミュレーションは …

    Cerebral Blood Flow and Metabolism (Japanese journal of cerebral blood flow and metabolism) 25(2), 43-49, 2014

    J-STAGE CrossRef

  • 13

    Continuous monitoring of cerebrovascular autoregulation for the poor grade patients after aneurysmal subarachnoid hemorrhage  [in Japanese]

    Koizumi Hiroyasu , Sugimoto Kazutaka , Shirao Satoshi , Ishihara Hideyuki , Sadahiro Hirokazu , Suehiro Eiichi , Yoneda Hiroshi , Nomura Sadahiro , Suzuki Michiyasu

    重症くも膜下出血自験例において急性期の頭蓋内圧(ICP)と平均血圧(MABP)の二変量の相関係数(pressure reactivity index; PRx)を算出した.この指標は脳血管自動調節能の保全状態を反映することが知られており,3カ月後の転帰との相関性について検証した.対象はWFNS grade 5 の重症くも膜下出血10 例とした.3 カ月後の転帰でGR,MD に至った転帰良好例は2 …

    Cerebral Blood Flow and Metabolism (Japanese journal of cerebral blood flow and metabolism) 25(2), 31-36, 2014

    J-STAGE CrossRef

  • 14

    Surgical Management of Traumatic Acute Subdural Hematoma in Adults: A Review

    KARIBE Hiroshi , HAYASHI Toshiaki , HIRANO Takayuki , KAMEYAMA Motonobu , NAKAGAWA Atsuhiro , TOMINAGA Teiji

    … It acts as a space occupying lesion to increase intracranial pressure, and is often complicated by co-existing lesions, and is modified by cerebral blood flow (CBF) changes, coagulopathy, and delayed hematomas. …

    Neurologia medico-chirurgica, 2014

    J-STAGE CrossRef

  • 15

    Use of 3D Arterial Spin Labeling (3D ASL)  [in Japanese]

    HIBI Hideaki , OKADA Hiroyuki , MIWA Masaharu , ANBE Takehiko , HASHIMOTO Hidehisa

    … そこで撮像条件が脳血流量cerebral blood flow (CBF) 値 (単位組織量あたりの脳血流量[ml/min・100g]) へどのように影響されるのか検討を行なったので実際の臨床例を交えて報告する。 … 撮像条件の検討については,arm及び加算回数 (NEX) を可変させた場合におけるCBF値の変化を検討した。 …

    JOURNAL OF THE JAPANESE ASSOCIATION OF RURAL MEDICINE 63(2), 132-136, 2014

    J-STAGE Ichushi Web CrossRef

  • 16

    Effect of dietary composition and barley supplementation on contact hypersensitivity in mice  [in Japanese]

    Kobayashi Etsuko , Takanami Yoshikazu , Aoe Seiichiro

    … 【目的および方法】肥満とアレルギー疾患の関連性に着目した基礎研究は少なく,食物繊維としての大麦摂取による両者の抑制効果に関する研究も少ない.本研究では,BALB/cマウスとC57BL/6JマウスのF1であるCBF1マウスに高脂肪食(CO),大麦添加高脂肪食(BF)を与え,ハプテンの反復塗布によってアレルギー性接触皮膚炎の病態を形成し,食事内容の違いがマウスにおける接触皮膚炎に及ぼす影響および大麦添加によるアレ …

    International Journal of Human Culture Studies 2014(24), 155-159, 2014

    J-STAGE CrossRef

  • 17

    Impairment of CO2 reactivity in RBC velocity and CBF after cortical spreading depression in anesthetized mice

    Unekawa Miyuki , Tomita Yutaka , Toriumi Haruki , Osada Takashi , Masamoto Kazuto , Kawaguchi Hiroshi , Itoh Yoshiaki , Kanno Iwao , Suzuki Norihiro

    … Background: We previously reported that cortical spreading depression (CSD) drastically suppresses red blood cell (RBC) velocity and alters cerebral blood flow (CBF) and vessel diameter in cortical arteriole. …

    Microvascular Reviews and Communications 7(1), 33a-33a, 2014

    J-STAGE CrossRef

  • 18

    A case of stenosis of the right internal carotid artery with limb shaking of the left arm and leg  [in Japanese]

    Ninomiya Satoko , Seno Toshimoto , Fumoto Noriyuki , Onoue Shinji , Ichikawa Haruhisa , Fukumoto Shinya , Tanaka Hideo , Kohno Kanehisa , Okuda Shinya , Matsumoto Yushi , Kamogawa Kenji , Tomita Hitomi , Okamoto Kensyo , Okuda Bungo

    要旨:症例は78 歳男性.突然の左上下肢の不随意運動,構音障害が発症した.頭部MRI では異常なく,ハロペリドールを処方されたが,症状が改善しないため,第4 病日に当科に入院した.入院時は,構音障害,左上下肢にchorea,ballism 様の不随意運動,軽度の左不全片麻痺を認めた.頭部MRI拡散強調画像では右基底核,島皮質に高信号域を認め,頸部MRA や頸動脈エコーでは右内頸動脈起始部に高度狭窄 …

    Nosotchu 36(1), 42-46, 2014

    J-STAGE CrossRef

  • 19

    Venous Reddening as a Possible Sign of Hyperperfusion after Superficial Temporal Artery-Middle Cerebral Artery Anastomosis for Moyamoya Disease: Case Report

    MACHIDA Toshio , ONO Junichi , NOMURA Ryota , FUJIKAWA Atsushi , NAGANO Osamu , HIGUCHI Yoshinori

    … Single photon emission computed tomography (SPECT) showed impaired cerebral blood flow (CBF) in both cerebral hemispheres. … Postoperative SPECT and computed tomography (CT) demonstrated increased CBF and subarachnoid hemorrhage at the anastomosis site, suggesting the occurrence of postoperative hyperperfusion. …

    Neurologia medico-chirurgica 54(10), 827-831, 2014

    J-STAGE CrossRef

  • 20

    Regulation of cerebral blood flow during stimulus-induced brain activation: Instructions for the correct interpretation of fNIRS signals

    Hori Shota , Seiyama Akitoshi

    … This review summarizes the regulation of cerebral blood flow (CBF) during stimulus-induced brain activation, mainly in functional near infrared spectroscopy (fNIRS) studies. … Furthermore, we discuss about CBF regulation based on mechanisms at the cellular level, hemodynamic models suggested by functional magnetic resonance imaging (fMRI), and previous studies using simultaneous measurement with fNIRS and fMRI. …

    The Journal of Physical Fitness and Sports Medicine 3(1), 91-100, 2014

    J-STAGE CrossRef

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