健康青壮年者,高令者ならびに慢性肺気腫患者の呼吸三位相別胸部レ線像肺野面積の変動と肺機能との関係 : 健康青壮年者の呼吸三位相別胸部レ線像肺野面積の変動と肺機能との関係(第一篇)
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Much progress has been made on the respiratory function test, on which difficulties to procedure are still encountered on some cases. If an easier and better-tolerable test is available, that will be of great importance to the diagnosis. Since Hurtado and Fray introduced the idea of "Radiotogical Chest Volume", Kovach and Rushing found the fact chiefly in normal test subjects that the radiological chest volume had a high degrees correlation with the observed ventilatory volume, though clinical evaluation of the method has not sufficiently appreciated. Then the purpose of this study was to define diagnostic evaluation of the radiometrical method of lung field area as measured on the chest X-ray films in three phases of respiration referring to the pulmonary ventilatory function tests. Materials and Methods The subjects involved in this study were divided into three groups. Group A was consisted 132 of healthy adults whose ages ranged seventeen to thirty-nine years. Group B was consisted 41 of the aged, ages ranged sixty-nine to seventy-five years, and group C was 27 of the patients with chronic pulmonary emphysema. The radiometrical chest volume was calculated by planiometric measurement on X-ray films taken from all of these subjects in the circumstanced with respirometer. On two sorts of directions (i. e. postero-anterior and lateral views) and in three sorts of respiratory phases (i. e. natural exspiration, maximum inspiration and maximum exspiration). The X-ray conditions on postero-anterior views were set as follows ; two meters in distance, 2D + 30kVp, where D is the thickness of chest wall, in secondary voltage, Moe in current, and 0.05 seconds in exposure time. In addition the movement of diaphragma and chest wall was investigated to the consideration at the same. Then usual pulmonary ventilatory function test and oximetric rebreath test were performed to the check, latter of which was originated in my clinic. Ear-oximeter (Erma W-IV type) and Scholanders gas-analyser apparatus were also employed to the purpose.
- 社団法人日本循環器学会の論文
- 1964-09-20
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- 健康青壮年者,高令者ならびに慢性肺気腫患者の呼吸三位相別胸部レ線像肺野面積の変動と肺機能との関係 : 健康青壮年者の呼吸三位相別胸部レ線像肺野面積の変動と肺機能との関係(第一篇)
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