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For the prevention of pneumoniosis, it is very important to detect the total amount of dust retained in the human lungs as early as possible. Up to the present time, however, no effective method for accurately measuring dust in the lungs has been developed. Proposed here is a new method of measuring the total amount of dust in the lungs using the magnetic property of the dust. We have made an equipment to measure the remnant fields of the dust in the lungs, which are produced by exposing the thorax to an external magnetizing field just prior to the measurement.<BR>This equipment consists of a fluxgate magnetoscope with a differential probe, an electrical magnet to magnetize subjects, a detection system and a scanning bed made of non-magnetic materials.<BR>We measured the magnetic field of the thorax of 55 persons who worked in a manufacturing factory and evaluated the total amount of dust accumulated in their lungs. We then compared the total amount of dust detected with the chest X-ray index, and found some positive correlations.
- 一般社団法人 日本生体医工学会の論文
一般社団法人 日本生体医工学会 | 論文
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