Toshiyasu Ogata

Summary

Affiliation: National Hospital Organization
Country: Japan

Publications

  1. ncbi request reprint Bottle neck sign of the proximal portion of the internal carotid artery in moyamoya disease
    Masahiro Yasaka
    Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyusyu Medical Center, 1 8 1 Jigyohama, Chuo Ku, Fukuoka 810 8563, Japan
    J Ultrasound Med 25:1547-52; quiz 1553-4. 2006
  2. ncbi request reprint Factors associated with occurrence of the intraleft atrial nonsmoke spontaneous individual contrast phenomenon after a Valsalva maneuver during transesophageal echocardiography
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Osaka, Japan
    Ultrasound Med Biol 32:339-43. 2006
  3. ncbi request reprint Diagnosis of middle cerebral artery occlusive lesions with contrast-enhanced transcranial color-coded real-time sonography in acute stroke
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Japan
    Neuroradiology 47:256-62. 2005
  4. ncbi request reprint Transcranial color-coded real-time sonographic criteria for occlusion of the middle cerebral artery in acute ischemic stroke
    Toshiyasu Ogata
    Department of Medicine, Cerebrovascular Division, National Cardiovascular Center, Osaka, Japan
    AJNR Am J Neuroradiol 25:1680-4. 2004
  5. ncbi request reprint Atherosclerosis found on carotid ultrasonography is associated with atherosclerosis on coronary intravascular ultrasonography
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine and Clinical Science, Kyushu University, Maidashi 3 1 1, Fukuoka 812 8582, Japan
    J Ultrasound Med 24:469-74. 2005
  6. ncbi request reprint Variation in ischemic stroke frequency in Japan by season and by other variables
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Japan
    J Neurol Sci 225:85-9. 2004
  7. ncbi request reprint Relationships between angiographic findings and National Institutes of Health stroke scale score in cases of hyperacute carotid ischemic stroke
    Makoto Nakajima
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Kumamoto, Japan
    AJNR Am J Neuroradiol 25:238-41. 2004
  8. ncbi request reprint [Prevention of brain infarction in patients with atrial fibrillation]
    Toshiyasu Ogata
    Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1 8 1 Jigyohama, Chuo Ku, Fukuoka 810 0065, Japan
    No To Shinkei 59:53-8. 2007
  9. ncbi request reprint [Prevention of brain infarction in patients with atrial fibrillation]
    Toshiyasu Ogata
    Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Chuo Ku, Fukuoka, Japan
    Brain Nerve 59:53-8. 2007

Collaborators

Detail Information

Publications9

  1. ncbi request reprint Bottle neck sign of the proximal portion of the internal carotid artery in moyamoya disease
    Masahiro Yasaka
    Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyusyu Medical Center, 1 8 1 Jigyohama, Chuo Ku, Fukuoka 810 8563, Japan
    J Ultrasound Med 25:1547-52; quiz 1553-4. 2006
    ..We investigated morphologic features of the extracranial internal carotid artery (ICA) by carotid ultrasonography in patients with moyamoya disease...
  2. ncbi request reprint Factors associated with occurrence of the intraleft atrial nonsmoke spontaneous individual contrast phenomenon after a Valsalva maneuver during transesophageal echocardiography
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Osaka, Japan
    Ultrasound Med Biol 32:339-43. 2006
    ..Thus, NSSIC may occur secondary to specific blood rheologic factors during the Valsalva maneuver...
  3. ncbi request reprint Diagnosis of middle cerebral artery occlusive lesions with contrast-enhanced transcranial color-coded real-time sonography in acute stroke
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Japan
    Neuroradiology 47:256-62. 2005
    ..9%, 85.7% and 87.5%, respectively). Measurement of MCA stem flow velocity with CE-TCCS can identify MCA stem stenosis and occlusion, as well as MCA branch occlusion...
  4. ncbi request reprint Transcranial color-coded real-time sonographic criteria for occlusion of the middle cerebral artery in acute ischemic stroke
    Toshiyasu Ogata
    Department of Medicine, Cerebrovascular Division, National Cardiovascular Center, Osaka, Japan
    AJNR Am J Neuroradiol 25:1680-4. 2004
    ..Transcranial color-coded real-time sonography (TCCS) is a useful tool to evaluate disease of the middle cerebral artery (MCA). This study was undertaken to identify TCCS criteria for the diagnosis of MCA stem and MCA branch occlusions...
  5. ncbi request reprint Atherosclerosis found on carotid ultrasonography is associated with atherosclerosis on coronary intravascular ultrasonography
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine and Clinical Science, Kyushu University, Maidashi 3 1 1, Fukuoka 812 8582, Japan
    J Ultrasound Med 24:469-74. 2005
    ..We evaluated the association between carotid and coronary atherosclerosis assessed by coronary intravascular ultrasonography (IVUS) in 45 patients...
  6. ncbi request reprint Variation in ischemic stroke frequency in Japan by season and by other variables
    Toshiyasu Ogata
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Japan
    J Neurol Sci 225:85-9. 2004
    ..It is unclear whether acute ischemic stroke exhibits a seasonal pattern in Japan. The aim of the present study was to elucidate seasonal differences in acute ischemic stroke...
  7. ncbi request reprint Relationships between angiographic findings and National Institutes of Health stroke scale score in cases of hyperacute carotid ischemic stroke
    Makoto Nakajima
    Cerebrovascular Division, Department of Medicine, National Cardiovascular Center, Kumamoto, Japan
    AJNR Am J Neuroradiol 25:238-41. 2004
    ..We evaluated the relationships between National Institutes of Health Stroke Scale (NIHSS) scores and findings on intra-arterial digital subtraction angiograms (IA-DSA) of patients with ischemic stroke within 6 hr of stroke onset...
  8. ncbi request reprint [Prevention of brain infarction in patients with atrial fibrillation]
    Toshiyasu Ogata
    Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1 8 1 Jigyohama, Chuo Ku, Fukuoka 810 0065, Japan
    No To Shinkei 59:53-8. 2007
    ..0 to 3.0. On the other hand, if the patients with NVAF are over 70 years, PT-INR has to be controlled from 1.6 to 2.6. Before extraction of a tooth, anticoagulation should not be call off...
  9. ncbi request reprint [Prevention of brain infarction in patients with atrial fibrillation]
    Toshiyasu Ogata
    Department of Cerebrovascular Disease, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Chuo Ku, Fukuoka, Japan
    Brain Nerve 59:53-8. 2007
    ..0 to 3.0. On the other hand, if the patients with NVAF are over 70 years, PT-INR has to be controlled from 1.6 to 2.6. Before extraction of a tooth, anticoagulation should not be call off...