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흉부(胸部) 정면(正面)X선사진(線寫眞)의 화질(畵質)에 관한 검사(檢討)
최종학,전만진,이창엽,Choi, Jong-Hak,Jeon, Man-Jin,Lee, Chang-Yup 대한방사선과학회 1985 방사선기술과학 Vol.8 No.2
The author came to analize and get the following problems after researched radiographic quality in order to find out the necessary factors to improve in radiographs of frontal projection of the chest selected at random of the adult patients (1545 male, 1520 female) who had been examined in 4 departments of radiology of the general hospitals in Seoul and Kyungki area. 1. Problems of x-ray film or of radiographic cassette appeared in 2.97% radiographs on account of selection of the film size (except costophrenic sinus) (1.79%), poor screen-film contact (0.85%), light leakage of cassette (0,33%). 2. Problems of patients' positioning or breathing appeared in 16.57% radiographs of all because of overlapping of lung apex and clavicle (6.98%), overlapping of scapula and lung field (5.87%), asymmetrical projection of clavicles (1.76%), errors in positioning and breathing of the patient (1.96%). 3. Problems of x-ray exposure factors or film processing appeared in 22.25% radiographs because of over-density (2.64%), under-density (3.95%), fog (0.59%), demonstration density under clavicles or lung marking unsharply (3.82%), not clear of lung marking from breast region (0.94%), not clear the lung marking from the part overlapped of heart and lungs (3.92%), not clear the lung marking from the part overlapped of liver and lung (6.49%).
유유아(乳幼兒)의 흉부X선검사(胸部X線檢査)에 대(對)한 통계학적(統計學的) 고찰(考察)
최종학,전만진,김영일,Choi, Jong-Hak,Jeon, Man-Jin,Kim, Yong-Ill 대한방사선과학회 1979 방사선기술과학 Vol.2 No.1
For this study, 2,712 sheets of the chest x-ray films of neonatuses, infants and early children were observed statistically and then the following results were obtained: 1. Seasonal increment of patients was overwhelming in spring and summer in compare with in autumn and winter. 2. Males was majority in distribution by sex. Neonatal and infancy group was the largest in number by forming 29.46% in distribution by age group and then follows six-years group(14.75%), one-year group(13.64%) and five-years group(12.61%) 3. In radiographical projection for chest, a great proportion was P-A projection as 53.72%. But, almost all the neonatal and infancy group and emergency patients were by A-P projection 4. As for x-ray findings, 78.47% was normality while 21.53% was abnormality. Tuberculosis(176 cases), was the largest in number in abnormal cases and next in rank was pneumonia(128 cases)and then congenital heart disease(82 cases). 5. Adequacy of exposure was disclosed as follows: 57.01% in correct-exposure 29.20% in over-exposure, 13.79% in under-exposure. 6. The x-ray beam was not restricted in 77.10% of total films. 7. "Good" formed 30.01% in position immobilizing of the patient and "ordinary" formed 38.02%, "bad" 31.97%. Especially, "Bad" formed high percentage in neonatal and infancy group.
방사선사(放射線士)의 동무(勤務) 실태(實態)에 관한 조사연구(調査硏究)
최종학,전만진,박영선,Choi, Jong-Hak,Jeon, Man-Jin,Park, Young-Sun 대한방사선과학회 1986 방사선기술과학 Vol.9 No.1
We got the following results from the 324 radiologic technologists as we surveyed their working condition by using the questionaire, who were working in the medical institutions (general hospitals and doctor's clinics) situated in the area of Seoul city, Kyung ki-do and Chung-chong-do since June to December 1985. 1. Their daily average working time was almost within 10 hours (in 93.9% of general hospitals, 66.1% of clinics). 2. About the numbers of holidays, 85.5% of general hospitals have one holiday per week,41.3% of clinics have one holiday per week or 38.5% of clinics have one holiday per two weeks. 3. Duty appointment of radiologic technologists in the department of radiology is taking charge of each part after serving for a certain part for some period (42.8%), taking charge of the special part continually or by turns in other working parts (35.3%). On the other hand in the clinics they took charge of all parts continually (53.2%) or by turns with their own situations. (30.3%). 4. Their daily working amount is too much in 51.6% of general hospitals or 45.8% of clinics. 5. They answered it was hard in 81.4% of general hospitals or 43.1% of clinics about the degree of difficulty of their work. 6. Their monthly salary is higher in the clinics than in the general hospitals and higher in Seoul area than in Kyung-ki or Chung-chong area. 7. Their yearly bonus .ate is 400%-600% (69.2%) in almost general hospitals, 100%-300% (57.8%) in th. clinics. 8. Danger allowance is paid with the monthly salary in 62.8% of the general hospitals or 19.2% of clinics and license allowance is paid in 44.7% of general hospitals or in 12.8% of clinics. 9. Their initial salary (except bonus) is about 200,000 won (in 76.8% of general hospitals, in 67.8% of clinics). 10. Their salary is raised regulary every year in 52.6% of general hospitals, but it is irregulary in 73.4% of clinics. 11. Promotion system is managed in 48.4% of the general hospitals or in 14.7% of clinics. 12. Retirement allowance is assured in 96.9% of the general hospitals or in 63.3% of clinics. 13. Main cause of their retirement is moving to more paid hospitals, better hospitals in working condition or facilities, moving to another cities, to the hospitals with more opportunities of promotion or choosing other jobs etc. 14. Human relationship with doctors, nurses or co-worker technologists as a member of medical team appeared almost intimate and good.