胸部厚測撮影法の研究

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By using the condenser discharge X-ray apparatus, they fixed the charge voltage and suspended the discharge at a suitable voltage by photo-timer control, in order to obtain a radiography of a fixed censity. Needless to say, there is a certain relation between the chest thickness of the patient and the voltage under a suspended discharge. The author studied that relation, comparing with the relation between the voltage under the suspended discharge and weight and specific weight of patients. These relation were studied statiscally in the view of age and sex of patients. The conclusion obtained from the study mentioned above was as follows : -Among the chest thickness, whight and specific weight of patients, the first has most to do with the voltage under the suspended discharge, on which weight has more influence than chest thickness. Comparing both sexes who have the same chest-thickness, same weight and specific weight, the voltage under the suspended discharge of women is apt to be higher than that of men. Among common adults from 20 years old to 50,there was found no special relation between age and the voltage under the suspended discharge.
1964-09-30