论文部分内容阅读
近年来,儿科中X线检查日益增多,大量材料表明约30%的儿童受到X线照射,其中70～98%是在保健站进行的,在门诊部汉为23%。被检儿童中受到一、二、三种X线检查者分别为68%、25%、7%,每名受检者平均每年受到1.4次检查,很多儿童在出生当年或当天就受到X线照射。苏联某地1977年统计,生后一年受到X线检查者占37%,生后3年内受照者占43%,12岁内儿童X线检查的平均数为600/千人,19岁内者为770/千人。儿童X线检查的构成:透视——32%,摄影——35%,荧光摄影——33%。检查部位主要为胸部器官(63%),骨关节系统(24%)、胃肠道(7%)、
In recent years, the number of X-rays in pediatrics has been increasing. A large number of materials indicate that about 30% of children are exposed to X-rays, of which 70 to 98% are performed at health centers and 23% in outpatients. The subjects examined were 68%, 25% and 7% of those with one, two and three types of X-ray examination respectively. Each subject received an average of 1.4 examinations per year. Many children were exposed to X-ray on the day of birth or on the same day . Statistics from a certain place in the Soviet Union in 1977 showed that X-ray examination accounted for 37% in one year after birth and 43% in three years after birth. The average number of X-ray examination in children aged 12 years old was 600 / thousand, within 19 years 770 per thousand. X-ray examination of children: perspective - 32%, photography - 35%, fluorescence photography - 33%. Chest organs (63%), osteoarticular system (24%), gastrointestinal tract (7%),