Yutaka Hosoda

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The purpose of this study was to determine incidence and regional distribution of hip fracture throughout Japan. The incidence rate of hip fracture in Japan was estimated by a nationwide survey for departments of orthopedics of all hospitals with 200 beds or more and supplementary survey for all medical institutions in three prefectures. The mail survey was(More)
The Japanese Classification of Computed Tomography for Pneumoconioses with Standard Films: Comparison with the ILO International Classification of Radiographs for Pneumoconioses: Narufumi SUGANUMA, et al. Department of Environmental Health, School of Medicine, Fukui Medical University—Objective: Computed tomography (CT) has recently come to be used for(More)
Epidemiologic studies have been playing frontier roles to explore determinants of sarcoidosis by observing affected persons with the related population. Since 1990, more than 100 epidemiologic papers have been added to the Medline and PubMed databases. Of them, just a few were dated after March 2001. This article is focused on the papers after that time,(More)
PURPOSE We have developed a classification of high-resolution computed tomography (HRCT) images for screening, surveillance and epidemiological studies of respiratory diseases caused by occupational and environmental factors. The proposed classification consists of three parts: a guideline explaining the elements of the classification scheme, a reading(More)
Vascular involvement in sarcoidosis is briefly reviewed with emphasis on the outcome of a 10-year project-study by the Sarcoidosis Research Committee of the Japanese Ministry of Health and Welfare. Examples of vascular disorder associated with sarcoidosis are presented, including basal lamina layering of the capillaries in the skeletal muscle, cardiac(More)
PURPOSE A jaw motion tracking device that measures six degrees of freedom has recently been developed. Understanding jaw motion is useful, but previous measurement methods were impractical for use in dental clinics. The overall aim of this study was to demonstrate the simple operation, low cost, and high precision of a recently developed jaw tracking(More)
AIM The aim of this review is to discuss the epidemiological relationship between sarcoidosis and tuberculosis. METHODS We have used a series of health surveillance data in a Japanese work population of 460,000 employees including 70,000 working in Tokyo (1941-1996) and the data from a nation-wide sarcoidosis survey in the general population (1959-1991).(More)
Asbestos has been an indispensable insulating material for railway industries, especially steam locomotives (SLs). This review (1928-1987) consists of three parts. 1) Pleural plaques: Since the 1970s, pleural plaques have been regarded as evidence of past asbestos inhalation, and more recently recognized as a risk factor of asbestos-related malignancies.(More)
We defined mixed-dust pneumoconiosis (MDP) pathologically as a pneumoconiosis showing dust macules or mixed-dust fibrotic nodules (MDF), with or without silicotic nodules (SN), in an individual with a history of exposure to mixed dust. We defined the latter arbitrarily as a mixture of crystalline silica and nonfibrous silicates. According to our definition(More)