Ryo Sakamoto

Learn More
Among MR methods, the most clinically applicable temperature measurement method at deep brain might be the diffusion-weighted image (DWI) thermometry. Although only applicable to cerebrospinal fluid (CSF), it is thought to be potentially useful in assessing the thermal pathophysiology of the brain in both patients and healthy subjects. The purpose of this(More)
BACKGROUND Cancer care is currently the most important medical issue in Japan. Total pain of cancer patients consists of a combination of four factors: physical, psychological, social distress, and spiritual pain. Previous studies showed female cancer patients ask for more psychological support and seem to suffer different types of distress compared with(More)
BACKGROUND As the number of immigrants to Japan increases, the health problems of foreign nationals also have an increasing impact on Japanese medical institutions. The aim of this study was to clarify the Japan-specific health problems related to both the physical and psychological symptoms of foreign nationals from the viewpoint of psychosomatic medicine.(More)
OBJECTIVES To evaluate the accuracy of advanced non-linear registration of serial lung Computed Tomography (CT) images using Large Deformation Diffeomorphic Metric Mapping (LDDMM). METHODS FIFTEEN CASES OF LUNG CANCER WITH SERIAL LUNG CT IMAGES (INTERVAL: 62.2±26.9 days) were used. After affine transformation, three dimensional, non-linear volume(More)
INTRODUCTION Quantitative values of CT attenuation, apparent diffusion coefficient (ADC), and standardized uptake value (SUV) were investigated for differentiation between pineal parenchymal tumors (PPTs) and germinomas. Differences in age, sex, and calcification pattern were also evaluated. METHODS Twenty-three patients with PPTs and germinomas in 20(More)
The psychological problems of non-Japanese people are becoming more outstanding, in accordance with the increase of foreign nationals in Japan. Five illustrative cases of English-speaking patients were analyzed, from the viewpoint of psychosomatic medicine. The most common psychiatric disorders were adjustment disorders, because of the cultural differences(More)
  • 1