• Proceedings of the Korea Contents Association Conference
• /
• 2011.05a
• /
• pp.195-196
• /
• 2011

1996년 이후부터 전산화단층촬영 검사가 건강보험급여대상이 되면서 이용률과 보급률이 더욱 증가되고 있으며 검사범위의 확대, 검사시간의 단축, 반복검사의 용이성, 이용의 편리성, 결과의 신뢰성, 장치의 구조적인 요소 및 검사 시행 횟수의 증가 등으로 검사량이 증가되고 있는 실정이다. CT 검사 건수의 증가요인으로 새로운 CT장비의 개발과 더불어 급격한 장비도입 증가 추세가 있으므로 이에 본 연구에서는 의료기관 종별 및 시기별 CT 장치 보유현황과 검사료간의 관계를 파악하였다. CT 장비는 병원급은 증가하고 있는 추세이나 의원급은 감소하고 있는 것으로 나타났다. CT진료비 청구는 80%이상이 종합전문요양기관과 종합병원에서 청구하는 것으로 나타났다. 이에 본 연구에서는 고가의료영상 진단 장비인 CT의 세대별 발달장비 도입 시기에 따른 우리나라 CT의 현황을 조사 분석하여 제시하여 고가의료장비 수급의 정책수립의 계기 및 기여하고자 한다.

• Journal of the Korean Society of Radiology
• /
• v.81 no.1
• /
• pp.176-189
• /
• 2020

Purpose To evaluate the clinical efficacy of real-time sonoelastography (RTS) for the follow-up of congenital muscular torticollis, based on measurements of muscle elasticity. Materials and Methods Thirty-four infants (23 male, 11 female) with congenital sternocleidomastoid (SCM) muscle torticollis underwent ultrasonography and elastography between November 2012 and December 2014. We evaluated the thickness, morphology (mass-like, fusiform, or overall thickened shape), and echogenicity of the SCM muscle on grayscale images and color patterns (homogeneous blue, mixed green < 50% and ≥ 50%, and green to red) on elastography. Strain ratios were measured using Q-lab software. A clinician classified the degree of neck rotation and side flexion deficits using a 5-point grade system based on angles of neck rotation and side flexion. Correlations between the ultrasonography and clinical findings were evaluated by statistical analysis. Results Twenty-two infants had right and 12 had left SCM torticollis, respectively. Linear regression analysis showed that involved/contralateral SCM thickness differences, morphology, elasticity color scores, and strain ratios of the affected SCM muscles were significantly correlated with neck rotation and side flexion deficit scores (p < 0.05). The elasticity color score of the affected SCM muscle was the most significant factor. Conclusion RTS might provide a reliable means for evaluating and monitoring congenital muscular torticollis.

• Korean Journal of Clinical Laboratory Science
• /
• v.51 no.1
• /
• pp.93-104
• /
• 2019

This study examined the relationship between the number of medical technologists and the medical test count. Data was obtained from 441 medical technologists in a hospital through a self-reported questionnaire. The Pearson correlation test, student's t-test, ANOVA or descriptive statistics were performed for data analysis. The distribution of medical technologist according to the size of hospitals was small 5.8, medium 14.9, large 25.8, and super 45.4. The analysis demonstrated a relationship between the number of medical technologists and the number of medical tests in the field, number of clinical tests per MT, and number of optimal medical test per MT according to the hospital size (P<0.001). The average time for quality control by the department at a higher hospital was less than two hours. In terms of the satisfaction of salary, work environment, test accomplishment, and welfare service, the dissatisfaction of medical technologists in small and medium hospitals was higher than those in large and super hospitals. Overall, a focus on intensifying systemic supplementation and improving the condition of medical technologists is needed to provide reliable data for medical examinations in medical areas.

• Korean Journal of Clinical Laboratory Science
• /
• v.53 no.2
• /
• pp.143-150
• /
• 2021

The recent spread of novel and highly variant pathogenic viruses, including the coronavirus (SARS-CoV-2), has increased the demand for diagnostic testing for rapid confirmation. This has resulted in investigating the functional capability of each space, and preparing facility guidelines to secure the safety of medical technologists. During viral evaluations, there is a requirement of negative pressure facilities along with thread separation, during pre-treatment of samples and before nucleic acid amplification. Space composition therefore needs to be planned by considering unidirectional air flow. This classification of safety management facilities is designated as biosafety level 2, and personal protective equipment is placed accordingly. In case of handling dangerous materials, they need to be carried out of the biosafety cabinet, and sterilizers are required for suitable disposal of infectious agents. A common feature of domestic laboratories is maintenance of the sample pre-treatment space at a negative pressure of -2.5 Pa or less, and arranging separate pre-treatment and reagent preparation spaces during the test process. We believe that the data generated in this study is meaningful, and offers an efficient direction and detailed flow for separation of the inspection process and space functions. Moreover, this study introduces construction of the laboratory by applying the safety management standards.

• Journal of the Korean Society of Radiology
• /
• v.82 no.5
• /
• pp.1218-1230
• /
• 2021

Purpose To compare the per-patient diagnostic performance of simulated abbreviated MRI (AMRI) to that of conventional MRI (CMRI) with full-sequence dynamic gadoxetic acid (GA) enhancement for early-stage hepatocellular carcinoma (HCC) screening in high-risk patients. Materials and Methods A total of 201 consecutive patients at high-risk for HCC, who underwent 3T liver MRI, were included in this retrospective study. The AMRI protocol comprised T2-weighted imaging, hepatobiliary phase imaging after GA injection, and diffusion-weighted imaging. For each patient, two AMRI and CMRI image sets were independently reviewed by two radiologists. Inter-reader agreement was assessed using Cohen's kappa value. A composite reference standard was used to determine the diagnostic performance of each image set for each reader. Results A total of 93 HCCs were detected in 79 patients. The inter-reader agreement was almost perfect for both image sets (κ = 0.839, 0.948). In AMRI, the per-patient sensitivity and negative predictive values (NPV) were 94.9% and 96.4%, respectively. In CMRI, the per-patient sensitivity and NPV were 96.2% and 97.5%, respectively. Conclusion AMRI, using only three sequences, had a comparable diagnostic performance to CMRI in screening early-stage HCC. AMRI could be an alternative HCC screening tool for high-risk HCC patients.

• Proceedings of the KSAR Conference
• /
• 2002.06a
• /
• pp.195.1-195
• /
• 2002

• Korean Journal of Clinical Laboratory Science
• /
• v.52 no.4
• /
• pp.335-341
• /
• 2020

This study investigates the association of the AFB stain with the cycle threshold (Ct) value of the Cobas TaqMan MTB test (CTM test, Roche Diagnostics, Basel, Switzerland), and it establishes the base data for semi-quantitative identification of M. tuberculosis by the Ct value. CTM test were simultaneously conducted on 8,389 specimens submitted to the Samsung Medical Center from January 2015 to December 2015, and the results were analyzed and compared retrospectively investigates the association of the AFB stain with the Ct value of the CTM test, and it establishes the base data for semi-quantitative identification of M. tuberculosis by the Ct value. The Ct values for 135 positive specimens of the CTM were inversely correlated with the AFB stain (rs=-0.545, P<0.01). When the Ct value of the CTM test and the time to positivity (TTP) of the mycobacteria cultures were verified based on the AFB stain, they were found to have a positive correlation (rs=0.136, P<0.01). The negative correlation between the CTM test and the AFB stain grade was demonstrated. The clinical significance was verified by applying these criteria to the clinical results. The semi-quantitative criteria of this study can be used to facilitate the rapid isolation of patients with active tuberculosis and infection control in the hospital.

• Journal of the korean veterinary medical association
• /
• v.44 no.11
• /
• pp.1046-1055
• /
• 2008

2008년 고병원성 조류인플루엔자의 발생으로 인해 양축 농가, 방역기관 관계자를 포함한 많은 국민들이 큰 시련을 겪었다. 다행히 이 질병이 초기에 근절되어 우리나라는 고병원성 조류인플루엔자 청정국임을 선포하게 되었다. 이 질병의 조기 근절에는 신속 정확한 진단이 기반이 되어 적절한 방역 대책이 수행되었기 때문으로 생각한다. 본고에서는 금년 고병원성 조류인플루엔자 발생과 관련되어 국립수의과학검역원 질병진단센터에서 수행한 의사환축 신고건, 병성감정 의뢰건, 역학조사 관련 시료 등에 대한 정밀검사 결과를 보고하고자 한다.

• Journal of the Korean Orthopaedic Association
• /
• v.56 no.3
• /
• pp.266-271
• /
• 2021

Osteoporosis associated with pregnancy and lactation is a rare disease that can cause osteoporotic vertebral compression fracture (OVCF). Patients usually complain of severe back pain, which is easily mistaken for pain due to pregnancy, childbirth, and lactation, making a rapid diagnosis and treatment difficult. The authors diagnosed OVCF related to pregnancy and lactation through a physical examination, simple radiography, whole-body bone scan, magnetic resonance image, bone marrow density, and blood tests in a 29-year-old female patient and a 31-year-old female patient who presented with low back pain. This paper reports two cases of symptom improvement through a teriparatide injection, wearing thoracic lumbar sacral orthosis and taking calcium and vitamin D with a review of the literature.

• KOREAN POULTRY JOURNAL
• /
• v.46 no.12
• /
• pp.105-109
• /
• 2014

지난 13일까지 총 4차례(1차 전남 영암 육용오리, 2차 전남 영암 육용오리, 3차 전북 김제 종오리, 4차 전남 보성 토종닭) 고병원성 AI신고 검사 결과 확진 판정을 받았다. 최근 일본, 러시아, 독일, 네덜란드, 영국 등 고병원성 AI 발생이 보고됨에 따라 해외여행 시 각별한 주의가 필요하다. 또한, AI 발생 국가에 머물던 철새가 국내로의 유입이 확인 되었으며 철새도래지 야생조류 분변 검사 결과 AI 바이러스가 검출되었다. 이에 따라 철새도래지 방문을 자제하고 야생조류 차단방역에 힘써야겠다. 따라서 AI 확산 및 전파를 막기 위해 농가에서 자율적으로 할 수 있는 방역활동 내용을 요약 정리하였다.