Koji Nakaya

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PURPOSE To assess hemodynamic changes in two patients with severely affected retinal circulation. METHODS A 62-year-old man with central retinal artery occlusion and a 46-year-old woman with branch retinal vein occlusion were studied by fluorescein angiography with a scanning laser ophthalmoscope (SLO). Fluorescein angiography with SLO revealed(More)
Background: Prone single photon emission computed tomography (SPECT) is suitable for evaluating the cardiac inferior wall as it suppresses attenuation artifacts from the diaphragm. The solid-state dedicated cardiac camera (D-SPECT) allows upright imaging, which can also be used to avoid attenuation artifacts from the diaphragm. We compared prone and upright(More)
INTRODUCTION We administered an angiotensin-converting enzyme inhibitor (captopril) to mice implanted with a human lung adenocarcinoma epithelial cell line (A549 cells) and investigated the tumor growth-inhibitory effect of captopril from the viewpoint of glucose metabolism using (18)F-fluorodeoxyglucose ((18)F-FDG)-PET/CT. METHODS Subcutaneous(More)
Conventional fluid motors require high-pressure fluids (20MPa~) and rotation speeds of these motors are extremely high (2,000~10,000rpm or more). Therefore it is difficult to apply these motors to mobile robots under hard conditions, like in fire disasters. Usually, high torque, low rotation speed, low pressure fluid motors are desired in robotics. This(More)
OBJECTIVE Myocardial perfusion single-photon emission computed tomography (SPECT) is occasionally suspected to generate images that represent either ischemia or infarction for the inferior wall [right coronary artery (RCA) disease] or attenuation artifacts because of the diaphragm. We often encounter this. The application of prone imaging is advantageous in(More)
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