Search Results - "Takasawa, Masashi"

Applications of Nitroimidazole In Vivo Hypoxia Imaging in Ischemic Stroke by TAKASAWA, Masashi, MOUSTAFA, Ramez Reda, BARON, Jean-Claude

“…Nitroimidazole imaging is a promising contender for noninvasive in vivo mapping of brain hypoxia after stroke. However, there is a dearth of knowledge about…”
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Uncoupling of flow and metabolism by chloral hydrate: a rat in-vivo autoradiographic study by Uematsu, Miki, Takasawa, Masashi, Hosoi, Rie, Inoue, Osamu

“…General anesthesia is commonly used in experiments; however, its effects on cerebral circulation remain unknown. We measured cerebral blood flow using…”
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Differential brain processing of audiovisual sexual stimuli in men: Comparative positron emission tomography study of the initiation and maintenance of penile erection during sexual arousal by Miyagawa, Yasushi, Tsujimura, Akira, Fujita, Kazutoshi, Matsuoka, Yasuhiro, Takahashi, Tohru, Takao, Tetsuya, Takada, Shingo, Matsumiya, Kiyomi, Osaki, Yasuhiro, Takasawa, Masashi, Oku, Naohiko, Hatazawa, Jun, Kaneko, Shigeo, Okuyama, Akihiko

“…The human male psychosexual cycle consists of four phases: excitation, plateau, orgasm, and resolution. Identification of the specific neural substrates of…”
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Brain processing of audiovisual sexual stimuli inducing penile erection: a positron emission tomography study by Tsujimura, Akira, Miyagawa, Yasushi, Fujita, Kazutoshi, Matsuoka, Yasuhiro, Takahashi, Tohru, Takao, Tetsuya, Matsumiya, Kiyomi, Osaki, Yasuhiro, Takasawa, Masashi, Oku, Naohiko, Hatazawa, Jun, Kaneko, Shigeo, Okuyama, Akihiko

“…Penile erection is dependent on commands from the central nervous system. Although basic studies of animals and neuroimaging studies of humans have been…”
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The effect of tapping finger and mode differences on cortical and subcortical activities: a PET study by AOKI, Tomoko, TSUDA, Hayato, TAKASAWA, Masashi, OSAKI, Yasuhiro, OKU, Naohiko, HATAZAWA, Jun, KINOSHITA, Hiroshi

“…Using positron emission tomography (PET), the brain regions recruited for the tapping movement by different fingers and different tapping modes were…”
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Cerebral hemodynamics and metabolism in adult moyamoya disease: comparison of angiographic collateral circulation by Piao, Rishu, Oku, Naohiko, Kitagawa, Kazuo, Imaizumi, Masao, Matsushita, Kohji, Yoshikawa, Takuya, Takasawa, Masashi, Osaki, Yasuhiro, Kimura, Yasuyuki, Kajimoto, Katsufumi, Hori, Masatsugu, Hatazawa, Jun

“…The extent of the hemodynamic and metabolic impairments in adult patients with moyamoya disease is still controversial. The aim of the present study was to…”
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Imaging of Brain Hypoxia in Permanent and Temporary Middle Cerebral Artery Occlusion in the Rat using 18F-Fluoromisonidazole and Positron Emission Tomography: A Pilot Study by Takasawa, Masashi, Beech, John S, Fryer, Tim D, Hong, Young T, Hughes, Jessica L, Igase, Keiji, Jones, P Simon, Smith, Rob, Aigbirhio, Franklin I, Menon, David K, Clark, John C, Baron, Jean-Claude

“…In acute stroke, the target of therapy is the severely hypoxic but salvageable tissue. Previous human studies using 18F-fluoromisonidazole and positron…”
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Hemodynamic Influences of Losartan on the Brain in Hypertensive Patients by OKU, Naohiko, KITAGAWA, Kazuo, IMAIZUMI, Masao, TAKASAWA, Masashi, PIAO, Risyu, KIMURA, Yasuyuki, KAJIMOTO, Katsufumi, MATSUMOTO, Masayasu, HORI, Masatsugu, HATAZAWA, Jun

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Effect of linearization correction on statistical parametric mapping (SPM): a 99mTc-HMPAO brain perfusion SPECT study in mild Alzheimer's disease by Ansar, M Ashik B, Osaki, Yasuhiro, Kazui, Hiroaki, Oku, Naohiko, Takasawa, Masashi, Kimura, Yasuyuki, Begum, Nurun N, Ikejiri, Yoshitaka, Takeda, Masatoshi, Hatazawa, Jun

“…Statistical parametric mapping (SPM) was employed to investigate the regional decline in cerebral blood flow (rCBF) as measured by 99mTc-hexamethyl propylene…”
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Clinical significance of cerebrovascular reserve in acetazolamide challenge -comparison with acetazolamide challenge H2O-PET and Gas-PET by Imaizumi, Masao, Kitagawa, Kazuo, Oku, Naohiko, Hashikawa, Kazuo, Takasawa, Masashi, Yoshikawa, Takuya, Osaki, Yasuhiro, Matsushita, Kouji, Matsumoto, Masayasu, Hori, Masatsugu, Hatazawa, Jun

“…The response of cerebral blood flow (CBF) to acetazolamide (ACZ) challenge is frequently determined in clinical settings to evaluate cerebrovascular reserve…”
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Effect of linearization correction on statistical parametric mapping (SPM): A99mTc-HMPAO brain perfusion SPECT study in mild Alzheimer’s disease by Ansar, Md. Ashik B., Osaki, Yasuhiro, Kazui, Hiroaki, Oku, Naohiko, Takasawa, Masashi, Kimura, Yasuyuki, Begum, Nurun N., Ikejiri, Yoshitaka, Takeda, Masatoshi, Hatazawa, Jun

“…Statistical parametric mapping (SPM) was employed to investigate the regional decline in cerebral blood flow (rCBF) as measured by^sup 99m^Tc-hexamethyl…”
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Cerebral and Cerebellar Activation in Power and Precision Grip Movements: An H215O Positron Emission Tomography Study by Takasawa, Masashi, Oku, Naohiko, Osaki, Yasuhiro, Kinoshita, Hiroshi, Imaizumi, Masao, Yoshikawa, Takuya, Kimura, Yasuyuki, Kajimoto, Katsufumi, Sasagaki, Michihiro, Kitagawa, Kazuo, Hori, Masatsugu, Hatazawa, Jun

“…Most human manual grip movements can be divided into power gripping and precision gripping, but central neural control during these tasks remains unclear. We…”
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Diastolic blood pressure influences cerebrovascular reactivity measured by means of 123I-iodoamphetamine brain single photon emission computed tomography in medically treated patients with occlusive carotid or middle cerebral artery disease by Kimura, Yasuyuki, Oku, Naohiko, Kajimoto, Katsufumi, Katoh, Hiroki, Tanaka, Makiko Rai, Takasawa, Masashi, Imaizumi, Masao, Kitagawa, Kazuo, Hori, Masatsugu, Hatazawa, Jun

“…Impaired cerebrovascular reactivity (CVR) to vasodilating agents is a predictor of the onset and prognosis of ischemic stroke. It is realized that the CVR…”
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Interobserver variability of cerebral blood flow measurements obtained using spectral analysis and technetium-99m labeled compounds by Takasawa, Masashi, Murase, Kenya, Oku, Naohiko, Kawamata, Minoru, Nagayoshi, Makoto, Osaki, Yasuhiro, Imaizumi, Masao, Yoshikawa, Takuya, Kitagawa, Kazuo, Hori, Masatsugu, Hatazawa, Jun

“…Radionuclide angiography with technetium-99m hexamethylpropylene amine oxime (99mTc-HMPAO) or technetium-99m ethyl cysteinate dimer (99mTc-ECD) enables the…”
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How Reliable Is Perfusion MR in Acute Stroke? : Validation and Determination of the Penumbra Threshold Against Quantitative PET by TAKASAWA, Masashi, JONES, P. Simon, OSTERGAARD, Leif, BARON, Jean-Claude, GUADAGNO, Joseph V, CHRISTENSEN, Soren, FRYER, Tim D, HARDING, Sally, GILLARD, Jonathan H, WILLIAMS, Guy B, AIGBIRHIO, Franklin I, WARBURTON, Elizabeth A

“…Perfusion magnetic resonance imaging (pMR) is increasingly used in acute stroke, but its physiologic significance is still debated. A reasonably good…”
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Imaging of brain hypoxia in permanent and temporary middle cerebral artery occlusion in the rat using F-fluoromisonidazole and positron emission tomography: a pilot study

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Single-subject statistical mapping of acute brain hypoxia in the rat following middle cerebral artery occlusion: A microPET study by Takasawa, Masashi, Beech, John S., Fryer, Tim D., Jones, P. Simon, Ahmed, Tahir, Smith, Rob, Aigbirhio, Franklin I., Baron, Jean-Claude

“…No study so far has attempted to map the 3D topography of brain hypoxia in the individual rat in vivo following middle cerebral artery occlusion (MCAo). In a…”
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Neural mechanism of residual inhibition of tinnitus in cochlear implant users by Osaki, Yasuhiro, Nishimura, Hiroshi, Takasawa, Masashi, Imaizumi, Masao, Kawashima, Takayuki, Iwaki, Takako, Oku, Naohiko, Hashikawa, Kazuo, Doi, Katsumi, Nishimura, Tsunehiko, Hatazawa, Jun, Kubo, Takeshi

“…Residual inhibition is a transient suppression of tinnitus after auditory stimulation has stopped. We used positron emission tomography to study brain regions…”
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Prognostic Value of Subacute Crossed Cerebellar Diaschisis: Single-Photon Emission CT Study in Patients with Middle Cerebral Artery Territory Infarct by Takasawa, Masashi, Watanabe, Manabu, Yamamoto, Shiro, Hoshi, Taku, Sasaki, Tsutomu, Hashikawa, Kazuo, Matsumoto, Masayasu, Kinoshita, Naokazu

“…Although chronic-stage crossed cerebellar diaschisis (CCD) is reported to be associated with the neurologic state or clinical improvement after infarct, the…”
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Deterioration of hemiparesis after recurrent stroke in the unaffected hemisphere: Three further cases with possible interpretation by Yamamoto, Shiro, Takasawa, Masashi, Kajiyama, Koji, Baron, Jean-Claude, Yamaguchi, Takenori

“…The concept of neural reorganization after brain damage is already well established, and many previous studies have successfully reported the translocation of…”
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