Search Results:　 1-20 of 22

1

Transient neural energetics by FMRI for brief and long stimuli. [Emerging Frontiers in Brain Research: Crossroads of metabolic regulaltion, stress response and disease. The 11th Meeting of Hirosaki International Forum of Medical Science. Communication Center of Hirosaki University School of Medicine. March 27-28,2009. Hirosaki, Japan.]

Herman Peter , Sanganahalli Basavaraju G. , Coman Daniel , Blumenfeld Hal , Hyder Fahmeed

… Neuronal activity mapping of cerebral functions using oxidative energetics has become an acceptedfunctional magnetic resonance imaging （fMRI） technique, termed calibrated fMRI. … It requires calculation of oxygenconsumption （CMRO2） from blood oxygenation level dependent （BOLD） signal using multi-modal measurementsof blood flow （CBF） and volume （CBV）. …

The Hirosaki medical journal 61(Supplement), S11-S22, 2010

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2

Evaluation of Aneurysmal Clipping by Advanced Microscope-integrated Intraoperative Indocyanine Green Videoangiography [in Japanese]

Murai Yasuo , Adachi Koji , Koketsu Kenta , Teramoto Akira

… 開頭を行い,Carl Zeiss社製顕微鏡OPMI^[○!R] PenteroのINFRARED 800とFLOW 800システムを用いて,動脈瘤の残存血流,末梢血管,末梢血管領域の脳表の輝度を観察した.脳表,動脈瘤の単位時間当たりの輝度変化を相対的かつ経時的に評価することにより,正常な脳表血流と動脈瘤の不完全閉塞による血流残存が明瞭に評価された.OPMI^[○!R] PenteroのINFRARED 800とFLOW 800システムは,簡便な相対的経時的輝度変化評価法として …

Japanese journal of neurosurgery 18(11), 839-843, 2009-11-20

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3

Influence of residual oxygen-15-labeled carbon monoxide radioactivity on cerebral blood flow and oxygen extraction fraction in a dual-tracer autoradiographic method

IWANISHI Katsuhiro , WATABE Hiroshi , HAYASHI Takuya , MIYAKE Yoshinori , MINATO Kotaro , IIDA Hidehiro

Ann Nucl Med. 23(4), 363-371, 2009-06-01

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4

Balloon Test Occlusion as a Preoperative Evaluation for Cerebral Aneurysms Treated with Bypass Surgery [in Japanese]

SHIMIZU Hiroaki , MATSUMOTO Yasushi , EZURA Masayuki , TAKAHASHI Akira , TOMINAGA Teiji

… The bypass surgery may be low or high flow bypass, but selection criteria have not been established. … When ischemic symptoms occurred during BTO, high flow bypass was performed followed by parent artery occlusion. …

Surgery for cerebral stroke 34(5), 317-322, 2006-09-30

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5

CEA for the Carotid Stenosis Cases with Near Occlusion [in Japanese]

KAWAMATA Takakazu , OKADA Yoshikazu , KAWASHIMA Akitsugu , HORI Tomokatsu

… Near occlusion of the carotid artery has been defined as very severe stenosis at the site of the residual lumen, delayed flow of angiographic contrast material, and reduced arterial caliber secondary to artery collapse. … Postoperative angiography or MRA demonstrated sufficient intracranial blood flow in the patients with near occlusion treated with CEA. …

Surgery for cerebral stroke 32(3), 189-192, 2004-05-31

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6

Impact of Contrast-enhanced Transcranial Color-coded Duplex Sonography on Evaluation of Unruptured Cerebral Aneurysm after Endovascular Treatment [in Japanese]

FUJIMOTO Shigeru , INOUE Tooru , TOYODA Kazunori , UDA Ken , HIRAI Yuko , UWATOKO Takeshi , SHIMADA Toshifumi , HAGIWARA Noriko , YASUMORI Kotaro , OKADA Yasushi

超音波造影剤を用いた経頭蓋カラードプラ法(TCDS)の,未破裂脳動脈瘤に対するコイル塞栓術の効果判定,および経過観察における有用性を検討した,対象は脳血管撮影で未破裂脳動脈瘤を指摘され,コイル塞栓術を施行された連続18例(19動脈瘤)で,造影TCDSにより,12例(67%)の脳動脈瘤の描出が可能であった.コイル塞栓術後にもこの12例に造影TCDSを施行し,脳血管造影所見と比較した.造影TCDSは全 …

Japanese journal of neurosurgery 12(12), 785-791, 2003-12-20

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7

Identification of Ischemic Core and Penumbra in Acute Stroke [in Japanese]

Nakagawara Jyoji

脳梗塞の成立には発症からの時間と残存脳血流量が関与しており,高度脳虚血では発症3時間以内でも脳組織のviabilityを維持することができず,中等度脳虚血では6時間以内でも維持しうる.^<133>Xe-SPECTを用いた検討では,発症3時間以内では15〜30ml/100g/min,3〜6時間では20〜30ml/100g/minの領域がischemic penumbraの領域と推定された …

Japanese journal of neurosurgery 11(9), 567-573, 2002-09-20

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8

Management of Patients with Ischemic Stroke

Nakagawara Jyoji

… In a case with embolic occlusion of cerebral artery, residual cerebral blood flow (CBF) in symptomatic ischemic region is distributed heterogeneously and cerebral infarction is developed gradually from ischemic core to penumbra. …

2001-12-20

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9

Early Regrowth and Recanalization of Ruptured Large Aneurysm after Guglielmi Detachable Coil Treatment: Report of Tivo Cases [in Japanese]

UCHIYAMA Naoyuki , KIDA Shinya , NOMURA Motohiro , KITA Daisuke , YAMASHITA Junkoh , YOSHIKAWA Jun , MATSUI Osamu

… GDC embolization was performed at 3 hours after onset, leaving a residual portion of the aneurysm neck. … Repeat coiling was performed, resulting in residual neck filling. … If follow-up angiograms show coil compaction inside the aneurysm with re-exposure of portion of the aneurysm to the blood flow, further GDC treatment and/or a surgical approach should be considered. …

Surgery for cerebral stroke 28(6), 469-473, 2000-11-30

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10

Correlation of Magnetic Resonance Imaging and Histological Findings in a Large Basilar Tip Aneurvsm After Coil Embolization

ASAI Jun-ichirou , SUZUKI Ryuta , FUIMOTO Tsukasa , MIYO Takayasu , NAGASHIMA Goro , HOKAKU Hiromu , TAKEI Atsuko , CHANG Chi-Wei , KURATA Akira

… The outer layer was mildly organized thrombus surrounding the coils, the middle layer was disorganized clot, and the inner consisted of fresh blood clot. … Comparison of the MR imaging and histological findings in this case show that gradient-echo MR imaging can assess thrombus and residual blood flow within the aneurysm. …

神経外科 40(10), 519-523, 2000-10-15

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11

<Simposium 4>The effective medichal treatment of acute cerebral infarction. Importance of evaluations of collateral flow and residual cerebral blood flow in acute fibrinolytic therapy for thromboembolic stroke in anterior circulation [in Japanese]

KOGUCHI Yorio , KOBAYASHI Shigeki , YAGISHITA Toshiyuki , KAGEYAMA Yusuke , KADO Ken , MIYATA Akihiro , NAKAMURA Hiroshi , SATO Akira , WATANABE Yoshiro

脳卒中 20(6), 683-688, 1998-12-25

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12

How to Use Cerebral Vasodilators and Metabolic Activators

ISOZUMI Kazuo , IZUMI Yoshio

… Cerebral vasodilators and metabolic activators (enhancers) for the treatment of cerebrovascular disorders (CVD) have been categorized and introduced into clinical practice according to their pharmacological actions and clinical indications. … The main therapeutic goal of these drugs is to relieve residual subjective symptoms and neuropsychological dysfunction, which reduce the quality of life of patients in the chronic stage of stroke. …

Tokai journal of experimental and clinical medicine 23(4), 187-192, 1998-10

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13

Repeat positron emission tomographic studies in transient middle cerebral artery occlusion in cats: residual perfusion and efficacy of postischemic reperfusion

HEISS W. D.

J Cereb Blood Flow Metab 17, 388-400, 1997

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14

Magnetic Resonance Imaging of Brain Death

MATSUMURA Akira , MEGURO Kotoo , TSURUSHIMA Hideo , KOMATSU Youji , KIKUCHI Yoichi , WADA Mitsuyoshi , NAKATA Yoshitaka , OHASHI Noriyoshi , NOSE Tadao

… MR画像とIA-DSAの両者を施行し得た9例ではMRでの海面静脈洞部内頚動脈のflow-voidの消失とIA-DSAのnon-filling所見が一致した。 … 経過を追ってMRを施行した8例中6例では脳死診断後にflow-voidが消失し、1例では診断前に既に消失していた。 … 症例によりMCA,ACAに部分的なflow-void が見られたが、血管内血液のto-and-froの動きを見ていると考えられた。 …

神経外科 36(3), 166-171, 1996-03-15

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15

Deterioration of Baroreflex by Transient Global Cerebral Ischemia: Its Correlation with the Degree of Ischemia or Post-Ischemic Hypoperfusion in the Medulla Oblongata

KURIHARA Junichi , SAHARA Tatsuhiro , KATO Hitoshi

… In a canine model of transient global cerebral ischemia, the correlation between the decrease in baroreflex sensitivity (BRS) following 5-min ischemia and the degree of ischemia or post-ischemic hypoperfusion was investigated. …

The Japanese Journal of Pharmacology 51(4), 493-499, 1989

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16

中大脳動脈 secondary trunk occlusionに対する急性期治療 ―特に急性期血行再建術の意義―

武田利兵衛 , 中川原譲二 , 松崎隆幸 , 田中靖通 , 中村順一 , 末松克美

… In the past two years we have performed surgical revascularization for the secondary trunk occlusion of the middle cerebral artery (MCA) in order to prevent the evolution of ischemic infarction in the acute stage. … Angiographic findings for all these cases showed poor or fair leptomeningeal collateral flow. …

1988-08-01

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17

Acute Cerebral Revascularization : Correlation among Preoperative CBF, Collateral Flow and Surgical Outcome

NAKAGAWARA Jyoji , NAKAMURA Jun-ichi , TAKEDA Rihei , TANAKA Yasumichi , SUEMATSYU Katsumi

… Twenty-two,patients,of,acute,cerebral,revascularization,were,analyzed,in,order,to,evaluate,various,predictors related to surgical effectiveness and outcome. … These patients presented sudden neurological symptoms following occlusion of the middle cerebral artery (MCA). … Prior to surgical intervention, CT scan, serial angiography, and measurement of cerebral blood flow (CBF) were performed. …

1988-08-01

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18

SUSCEPTIBILITY TO ISCHEMIC INSULT IN HYPERTENSIVE RATS : CORRELATION BETWEEN DEGREE OF ISCHEMIA AND HYPERTENSION

YASUO KATAYAMA YASUO , SUGIMOTO SHIGERU , INAMURA KENJI , SOEDA TOSHIYUKI , SHIMIZU JUN , SUZUKI SATORU , NAGAZUMI ATSUSHI , TERASHI AKIRO

… The Wistar rat, with a blood pressure range of 120-160 mmHg, and two strains of spontaneously hypertensive rats (SHR), stroke-prone (SHRSP, range 210-270 mmHg) and stroke-resistant (SHRSR, range 160-240 mmHg), were used to determine the degree of damage after ischemic insult induced by bilateral carotid artery ligation (BLCL). …

Japanese circulation journal 50(3), 258-264, 1986-03-20

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19

Role of Residual Cerebral Blood Flow on the Acute Restoration of Cerebral Blood Flow in Experimintal Cerebral Ischemia [in Japanese]

HAYASHI Tatsuo , YOSHIDA Yasuaki , SAKO Hiroko , KOBAYASHI Hiroo , SHIBATA Norio , OGINO Takehiro , UNO Toshiro , KUSUNO Koji , AHAGON Asamitsu , AMO Masashi

… The relationship between residual cerebral blood flow and cerebral edema as well as hemorrhagic infarction seen following acute restoration of cerebral blood flow in an ischemic brain was experimentally studied. …

神経外科 22(11), 885-892, 1982-11-15

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20

各種脳代謝賦活剤の脳グルコース代謝に及びす作用 [in Japanese]

河野沢与

… Recently there have been developed various activators of the brain metabolism as therapeutic agents for the treatment of functional deficiency of the brain in residual lesions due to traumatic and vascular disturbances of the head and in geriatric mental disorders. …

Journal of Okayama Medical Association 84(9・10), 289-305, 1972-10

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