• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2022년도 춘계학술발표대회
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• pp.705-707
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• 2022

인체의 흉부 X-ray 영상으로부터 척추질환과 관련된 의료 진단지표를 자동으로 추출하는 과정을 위하여 흉추조직의 정확한 분할이 필요하다. 본 연구에서는 HRNet 기반의 학습을 통하여 흉추조직을 분할하는 방법을 고찰한다. 분할 과정에서 영상 내의 상대적인 위치 정보가 효과적으로 반영될 수 있도록, 계층별로 영상의 고해상도의 표현이 그대로 유지되는 구조와 저해상도의 특징 지도로 변환되는 구조가 병렬적으로 연결되는 형태의 심층 신경망 모델을 채택하였다. 흉부 X-ray 영상에서 콥각도(Cobb's angle)를 산출하는 문제를 대상으로 흉추 분할을 위한 학습 방법, 진단지표 추출 방법 등을 소개하며, 부수적으로 피사체의 위치 변화 및 크기 변화 등에 강인한 성능을 제공하기 위하여 학습 데이터를 증강하는 방법론을 제시하였다. 총 145개의 영상을 사용한 실험을 통하여 제안된 이론의 타당성을 평가하였다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2023년도 춘계학술발표대회
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• pp.448-450
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• 2023

본 논문에서는 복부 CT 의료영상에서 근감소증 진단을 위한 지표로 활용하는 요추 3번 슬라이스를 분류하기 위해서 CNN 기반의 EfficientNetV2를 사용하여 자동분류모델을 개발하였다. 이를 위해 먼저 전체 복부 CT 의료영상에서 Thoracic, L1, L2, L3, L4, L5, Sacral 7개의 슬라이스를 검출하도록 하였다. 자동분류모델의 정확성을 측정하기 위해서 Test 데이터셋을 사용하여 Confusion Matrix 결과를 통해 개발된 모델의 성능을 검증한 결과를 보였다. 본 연구결과는 복부 CT 영상에서 기존 L3 레벨의 특정 단면에서 근육량을 측정하는 것에서 다양한 부위에서 측정할 수 있는 장점을 갖게 된다. 그리고 의료영상기반의 근감소증 진단 연구에 도움을 줄 것으로 기대하고 있다.

• 한국방사선학회논문지
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• 제12권4호
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• pp.467-474
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• 2018

CBCT는 치료부위의 정확도 향상에 유용하지만, 반복적인 사용으로 피폭선량이 높아지는 단점이 있다. 이에 본 연구에서는 차폐체를 사용한 모의실험과 선량감소 효과를 데이터화하여 CBCT 시행 시 선량 저감화를 위한 기초자료를 제공하고자 한다. 본 연구에서는 MCNPX를 통해 CBCT를 모사하여 광자선을 분석한 후, UF-revised 인체 모의 피폭체를 대상으로 흉복부 촬영 시 장기의 흡수선량을 계산하였다. 이 때, 차폐체(납, 안티몬, 황산바륨, 텅스텐, 비스무스) 유무와 차폐 재질에 따른 장기선량을 평가하였다. 차폐를 하지 않고 CBCT 촬영을 하였을 경우 유방 과 척추에서 선량이 높게 계산되었으며, 식도와 폐에서 선량이 낮게 계산되었다. 차폐체 재질에 따른 선량 은 황산바륨, 안티몬, 비스무스, 납, 텅스텐 순으로 선량이 높게 계산되었다. 차폐체 유무에 따른 선량 감소율을 평가해 보면 흉선(73.6%), 유방(59.9%)에서 가장 차폐율이 높고, 폐(2.1%), 척추(12.6%)에서 가장 낮은 차폐율을 보였다.

• Journal of Yeungnam Medical Science
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• 제30권2호
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• pp.116-119
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• 2013

A burnt-out prostate cancer tumor is a very rare clinical entity. The term 'burnt-out' refers to a primary tumor that has spontaneously and nearly completely regressed without treatment. Since metastasis of prostate cancer is usually encountered in the presence of advanced disease, distant metastasis with an undetectable primary tumor is very rare. We report herein a case of a burnt-out prostate cancer tumor that metastasized to the thoracic (T) spine and caused cord compression. A 66-year-old man visited the Emergency Department due to weakness of both legs for the past two days. His blood and urine tests were normal at the time. His spine magnetic resonance imaging (MRI) scans looked like bone metastasis that involved the T-7 vertebral body and a posterior element, and caused spinal cord compression. Other images, including from the brain MRI, neck/chest/abdomino-pelvic computed tomography (CT) scan and 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) and endoscopy, revealed no lesions that suggested malignancy. After total corpectomy T-7 and screw fixation/fusion at T5 to T10, the pathology report revealed a metastatic carcinoma that was strongly positive for prostate-specific antigen (PSA). The serum PSA value was 1.5 ng/mL. The transrectal 12-core prostate biopsy and ultrasonography showed no definitive hypoechoic lesion, but one specimen had slight (only 1%) adenocarcinoma with a Gleason score of 6 (3+3). The final diagnosis was burned-out prostate cancer with an initial normal PSA value. Although metastatic disease with an unknown primary origin was confirmed, a more aggressive approach in seeking the primary origin could provide a more specific treatment strategy and greater clinical benefit to patients.

• Journal of Korean Neurosurgical Society
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• 제29권10호
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• pp.1365-1371
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• 2000

악성 임파종중에서 Non-Hodgkin 임파종이 척수 압박 증상을 일으키는 경우는 0.1~10.2%정도로 알려져 있으며, 이러한 척수 압박 증세가 임파종의 초기 증상으로 나타나는 경우는 특히 드문 것으로 알려져 있다. 척수 압박은 척추관내에 국한되어 있는 임파종에 의하거나 주변 임파절이나 척추로부터 전이된 경우에 발생하며, 다른 장기로의 침범 소견이 없는 원발성 척수 경막외 임파종의 경우, 조기에 외과적 감압이 이루어지고 보조요법으로 항암 치료 및 방사선 치료가 행해진다면 그 경과가 비교적 양호한 것으로 알려져 있다. 저자들은 요통을 전구 증상으로, 급성 하반신 부전마비 및 배뇨 장애 소견을 보여 본원에 내원후, 응급 감압술 및 조직병리검사 결과 B-세포성 Non-Hodgkin 임파종으로 확인된 두 명의 여자환자를 경험하였다. 수술후 두 환자의 증세는 모두 회복되었으며, 항암 치료 및 방사선 치료후 현재까지 추적 조사중이다. 이에 저자들은 초기 증상으로 경막외 척수 압박을 보인 원발성 Non-Hodgkin 임파종에 관해 문헌 고찰과 함께 보고하는 바이다.

• 대한물리치료과학회지
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• 제4권2호
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• pp.405-419
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• 1997

This research has been conducted to provide the spinal cord injured patients with comprehensive necessity of and backup data for their rehabilitation in the community and make the aware of importance of overall community support to patients. The data was collected through questionnaire made to 83 patients charged to general hospital in Jeonbuk Province between 1 and 31 March 1997 to analyse the patients ability on activities of daily living through the research on general characteristics and Modified Barthel Index(MBI). As a result the outcome of the research was as follows : 1. Sexual distribution represented that 57 male (68.7%) and 26 female(31.3%) and in the age distribution majority group was 36 thirties (43.4 %) most active in social activities. 2. Analysis on occupation of patients showed majority group was in technicians, 21 people representing 25.4 % and the major cause of injury was traffic accident, 45people representing 54.2%, fall down, 17 people representing 20.5% and industrial accident, 13 people representing 15.7%, respectively. 3. In the multiple choice questionnaire on complications, the rate of appealing pain was highest and spasticity, pressure sore, contracture, depression which restrict the patients from activities of daily living ability were also appeared. 4. The theoretical points in MBI Should lie between 1 and 115 and the average point be 58 but the average point of the MBI among 83 patients was 63. 5. The MBI point by the level of injured represented statistically critical difference(P<0.001) and the MBI points tested by Duncan's Multiple Area Testing in lumbar(80.1) and in thoracic (65.8) represented critically higher than the one in cervical(42.5). 6. In the distribution of the method of Urination after spine injury, the intermittent catheterization represented highest numbar of 34(41.1 %). Testing by Duncan's Multiple Area Testing, as we found the critical difference in the analysis on MBI points(P<0.001), the point in independent self voiding patients ($90.87{\pm}29.34$) was higher than the one in other self voiding patients(P<0.05). 7. In th category of social activities after spine injury, the number of people classified in others, 41 people representing 49.5% was highest and in the MBI points of the spinal cord injured people in religious activity, hobby activity, private club, occupation was critically higher than the people classified in miscellancous(P<0.01) who are the spinal cord injured people and mostly depend on their family's assistance at home in their daily activities.

• 농촌의학ㆍ지역보건
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• 제33권1호
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• pp.82-89
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• 2008

농촌의 고령화, 기계화 및 농약 사용량의 증가는 농어업인의 손상 및 중독의 증가에 영향을 미치고 있다. 본 연구에서는 농어민 자격자료와 건강보험수진자료 등 2차 자료원을 이용하여 농어업인과 비농어업인에서 손상질환의 유병률을 비교하였다.구체적으로 농어업인과 비농어업인 사이의 전체손상질환 유병률의 차이를 비교하였고 농어업인에서 많은 5대 다빈도 손상질환과 농약에 의한 중독 상병에 대해 비교하였다. 유병률 비교는 남녀 각각에서 비농어업인을 표준 인구로 간접 표준화법을 이용하여 연령보정 표준화 이환비와 95% 신뢰구간을 구하였다.연구결과 농어업인의 전체손상질환 연령보정 표준화이환비는 남자에서 137.6(95% 신뢰구간 137.1 - 138.1) 이었으며 여자에서는 123.3(95% 신뢰구간 122.9 - 123.8)로 유의하게 높았다. 세부질환별로는 요추/골반, 어깨, 목의 염좌, 흉골, 갈비뼈, 흉추의 골절과 살충제 중독에서 연령보정 표준화이환비가 유의하게 높았다.향후 농어업인 손상질환과 관련된 다양한 형태의 연구가 필요하며, 농어업으로 인한 손상의 지역별 또는 경시적 비교가 가능하도록 전체 손상과 작업관련성 손상의 정의를 표준화하는 것이 필요하다.

• 한방재활의학과학회지
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• 제23권4호
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• pp.195-202
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• 2013

Objectives This study was designed to investigate the correlation between the forward head posture and the spinal alignment. Methods We examined the whole spine x-rays of the 144 student sample. We measured the Craniovertebral angle (CVA), Cervical angle (CA), Thoracic kyphotic angle (TKA), lumbar lordosis angle (LLA) and Ferguson's angle (FA) of the students. We then analyzed the relationship between these angles. Results CVA had correlation with CA, but it was weak. There was significant correlation between CVA and TKA. There were no significant correlation among CVA, LLA and FA. Conclusions According to above results, there is a negative relationship between the CVA and the TKA - in that higher CVAs yielded lower TKAs. But CVA had no significant correlation with LLA or FA.

• 한국전문물리치료학회지
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• 제7권3호
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• pp.1-18
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• 2000

The present study was performed to investigate the prevalence rate of idiopathic scoliosis and to determine the effect of exercise training on scoliotic angle in elementary school children. In this study, two out of five elementary schools in Seosan city were chosen by random sampling. Seven hundred sixty four students (from four grade to the sixth grade student) were selected in two schools. Screening tests were conducted to find idiopathic scoliosis. Among the 764 individuals, 139 subjects who showed positive sign in physical examination took whole spine radiography. Thirty six subjects who had a curve of 10 or greater and consented to participate in the exercise program were selected for the exercise program. The exercise program was performed four times a week for 5 months. The results of this study were as follows: 1) One hundred thirty nine subjects showed positive sign in the scoliosis screening test. 2) The overall prevalence of curve of $10^{\circ}or$ greater in X-ray finding was 8.15%. The prevalencies of curve of $10^{\circ}or$ greater in male and female were 7.1% and 9.2%, respectively. 3) Scoliosis curves were observed at thoracic area (48.4%), at thoracolumbar area (27.4%) and at lumbar area(24.4%). 4) Right side curve was 59.7%, and left side curve was 40.3%. 5) After the 5 month exercise program for scoliosis, the Cobb's angle was significantly decreased. 6) There was no significant difference of Cobb's angle change respect to sex, grades, and scoliosis curve site. Results shown here indicates that an early detection and early exercise for scoliosis can result in decreased the Cobb's angle in elementary school children.

• 대한한방소아과학회지
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• 제29권4호
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• pp.67-76
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• 2015

Objectives The purpose of this review is to investigate the domestic and foreign studies of pediatric Chuna treatment and propose the directions of future studies and clinical applications. Methods We searched for the study at RISS, KISS, DBPIA, Pubmed, CNKI by keywords, '추나', 'Osteopathic', 'Chiropractic', 'Manipulation', '推拿', '導引', '按摩', After 2010. Results 1. Selected 3 domestic studies were categorized as 1 survey study and 2 case reports. Selected 41 foreign studies from Pubmed were categorized as 15 systemic reviews, 8 survey studies, 12 case reports and 6 control studies. Selected 82 foreign studies from CNKI were categorized as 10 systemic reviews, 22 case reports and 50 control studies. 2. 2 clinical domestic studies researched on idiopathic Scoliosis. The foreign clinical studies from Pubmed are 18 cases, and those studies were categorized into Premature baby care (3), Infant colic (2), ADHD (2), Congenital talipes equinovarus (1), Somatic dysfuntion (1), Nonsynostotic occipital plagiocephaly (1), Conversion disorder (1), Lower back pain (1), Chronic bilateral dorsal foot pain and stiffness (1), plantar fasciitis (1), Migraine headaches (1), Cyclic vomiting syndrome (1), Acute otitis media (1) and Cerebral palsy (1). The other 72 foreign clinical studies were from CNKI, and they studied 39 different diseases. Systematically, they studied about digestive diseases (25), respiratory diseases (20), fever (6), musculoskeletal diseases (5), nervous system diseases (5), dermatology diseases (2) and other disease states. The Chuna treatment was used in variety of studies. 3. 2 clinical domestic studies adopted techniques of Osteopathy Chuna. The foreign clinical studies from Pubmed adopted techniques of Osteopathic manipulation (10) and Chiropractic manipulation (8). The other foreign clinical studies from CNKI adopted techniques of Acupressure (69), Abdominal manipulation (23), Spinal manipulation (21), Thoracic manipulation (11), Traction manipulation (2), Muscular manipulation (2), Squeezing Sha manipulation (1), Spine correction (1), Joint manipulation (1) and Fascia manipulation (1). Conclusions In addition to musculoskeletal disorders, variety of pediatric diseases could be treated with Chuna treatment instead of acupuncture.