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고관절 표면 치환술 환자의 LATERAL 검사법에 대한 고찰
정구민(Ku Min Jung),박명래(Myung Rae Park),이춘미(Chun Mi Lee),박석(Suk Park),최상규(Sang Kyoo Choi),김용환(Young Hwan Kim) 대한영상의학기술학회 2010 대한영상의학기술학회 논문지 Vol.2010 No.-
Purpose : During the follow- up test of resurfacing hip joint arthroplasty patients, the lateral screening test is usually taken to distinguish wear, tear, debris, or osteolysis, when the boundaries of the bone and the implant are described as a single line. So far, however, there is no reported radiologic data about effective test method for accurate information processing and image description, so far. Therefore, we comparatively analyzed the effectiveness of methods by measuring time of lateral screening test useful for diagnosis and temporizing translateral test. Matherials and Methods : 200 follow-up patients (152 men, 48 women) of resurfacing hip joint arthroplasty, who had visited our hospital from April 2009 to January 2010 were subjected for this study, and their average age was 44.9 years (20~78 years old). ① 12 university hospitals including us were subjected for the survey of whether the resurfacing hip joint arthroplasty was held or not, and about the lateral test method. ② We classified and measured the femur angle at the hip AP(Internal rotation 15°) position into 5 groups (A:120°~125°, B:125°~130°, C:130°~135°, D:135°~140°, E:140°~145°) by PACS and analyzed the distribution. We also classified the incident beam into 4 groups (Cranial 30°, 35°, 40°, 45°), tested the effective incident beam(Tube angle) for diagnosis by femur angle, asked for screening by faculties, residents, and radiologists of the department of radiology and orthopedics, and finally analyzed statistically by Chi- square verification. ③ We comparatively analyzed the diagnostic effectiveness and work efficiency of temporizing translateral test with the published experimental method, during the lateral test for resurfacing hip joint arthroplasty patients. Results : ① 5 of 12 university hospitals provided resurfacing hip joint arthroplasty treatment, while only our hospital was proved to conduct an independent test method. ② The result of Chi-square test(P-Value=0.001) showed the maximal femur angle distribution at 125°~140°, and the most useful image for diagnosis was obtained from the result of 129 of 200 patients showing the incident beam(Tube angle) at Cranial 35°~40°. ③ Both groin lateral test and translateral test provided useful images for diagnosis. But, the groin lateral test method could improve the problems of translateral test method about the reproducibility of incident beam and the low repeat rate of measurement. Also, the efficiency of test was much higher by reducing average measurement time for more than 2 times (40.85 sec vs 82.85 sec). Conclusion : From this study subjecting the follow-up patients of resurfacing hip joint arthroplasty, the result of lateral screening test showed the best image with the incident angle by Cranial 35°~40° to find out wear, tear, debris, or osteolysis between the bone and the implant. In addition, the time also reduced by more than 2 times compared to the temporizing method.
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정재호(Jae HO Jung),박명래(Myung Rae Park),민강미(Kang Mi Min),신진호(Jin Ho Shin),육진(Jin Yook),정경일(Kyung Il Jung),김용환(Yong Hwan Kim),서세옥(Se Ok Seo) 대한CT영상기술학회 2010 대한CT영상기술학회지 Vol.12 No.1
Purpose Technological advance in computed tomography(CT) have led to an increase in the number of patients that can be admitted daily. This increase has caused a rise in nasocomial infections. This research was investigated the disinfectant power of two solutions: 75% ethyl alcohol and a diluted NaOCI 4% solution. Materials and methods In the research 5 representative bacteria were found in the CT room. The five strains of bacteria are coagulase-negative staphylococci (CNS), methicillin-resistant coagulase-negative staphylococci (MRCNS), methicillin-resistant staphylococci aureus(MRSA) and staphylococci aureus(SA). Samples were acquired from 10 locations: the patient couch, control button, door handle in the both CT scan rooms and telephone and operator mouse in both operator rooms. Following the naked eye survey method of a blood agar plate, colonies were described as many(+++, 3 or more colonies) moderate(++, 2 colonies), and 1 colony was few(+). Counting was done by using Mini-tab version 15 statistical processing program. Results A lot of CNS was detected 6 of the 10 locations(60%) in the both CT scan rooms and operator rooms before disinfection. Results after disinfection with 75% ethyl alcohol were detected in just 1 location which was moderate(++) and the others were few(+) or no growth. The extinction rate of total colonies was 97.5% compared with before disinfection. Results after disinfection with the NaOCL 4% diluted solution were detected in 3 locations with CNS. However all locations were classified as few(+) and total colonies was just one. The disinfection rate of both solutions was similar at 97.5% for the 75% ethyl alcohol solution and 98% for the NaOCI 4% solution. Conclusion Failing to disinfect the CT rooms daily leads to growth of non-pathogenic bacteria. Although the disinfectant power of both solutions was similar, this study recommends the use of NaOCI 4% because it was much more efficient dian the 75% ethyl alcohol.
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