• 제목/요약/키워드: dual-energy X-ray absorptiometry

검색결과 230건 처리시간 0.028초

Study of acupuncture stimulation on experimental osteopenia

  • Kanai, Shigeyuki;Taniguchi, Norimasa;Kanda, Kayo;Higashino, Hideaki
    • Advances in Traditional Medicine
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    • 제6권2호
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    • pp.79-85
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    • 2006
  • In order to study the effect of acupuncture stimulation on bone mineral density (BMD), using the ovariectomized (OVX) rat model, we assessed the degree of osteopenia by dual-energy X-ray absorptiometry, measured the level of locomotor activity using a metabolism measuring system, and performed histological studies of bone tissue. Twenty-four female Wistar rats (8 weeks old, 160 - 180 g)were divided into three groups. Rats in the OVX-A group underwent ovariectomy followed by acupuncture stimulation. The OVX rats in the Vehicle control group were not treated with acupuncture as a control. The rats in the control group received neither ovariectomy nor acupuncture. Acupuncture stimulation for 12 weeks in the OVX-A group inhibited the reduction in BMD of the femoral bones caused by ovariectomy. Moreover, in the two OVX groups, there was no clear difference in the level of locomotor activity between the active and resting phases prior to acupuncture stimulation in each rat, and the pattern of locomotor activity was irregular. After acupuncture stimulation of the OVX-A rats, the pattern of locomotor activity became diphasic with clear active and resting phases, as was observed in the Control group. On histological studies, the continuity of trabecular bone was maintained more favorably and bone mass was higher in the OVX-A group than in the vehicle control group. These results suggest that the increased locomotor activity that had been induced by acupuncture stimulation increased the BMD.

한국 폐경 여성의 골다공증 위험 인자에 관한 연구 (Risk Factors for Postmenopausal Osteoporosis in Korea)

  • 이동윤;구승엽;김석현;최영민;문신용;김정구
    • 한국건강관리협회지
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    • 제2권2호
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    • pp.137-148
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    • 2004
  • Objective : To identify the risk factors for postmenopausal osteoporosis in Korea Materials and methods : Bone mineral density (BMD) at the lumbar spine and femoral neck was measured by dual energy X-ray absorptiometry in 808 apparently normal postmenopausal Korean women. Questions about life style, demographic parameters, medical history and social habits etc. were asked on these women; 2ll women with normal bone mineral density, and 597 women with osteopenia or osteoporosis. Results 'Age of >50 years, low body mass index (BMI; <18.5 kg/m2), long duration of menopause(>10 years), and previous history of fracture were associated with increased prevalence of osteopenia or osteoporosis. Women without the outside activity also showed a higher frequency of low bone mass, Risk for osteopenia or osteoporosis was low in women with high BMI (>23 kg/m2) and women with job. The prevalence of low bone mass appeared to be independent of the following parameters: socioeconomic status, familial history, smoking, drinking, exercise, previous use of oral contraceptive, coffee or milk consumption, and degree of sunlight exposure. Conclusion 'Age, BMI, duration of menopause, previous history of fracture and degree of outside activity are the risk factors for postmenopausal osteoporosis in Korea.

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Utility of the computed tomography indices on cone beam computed tomography images in the diagnosis of osteoporosis in women

  • Koh, Kwang-Joon;Kim, Kyoung-A
    • Imaging Science in Dentistry
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    • 제41권3호
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    • pp.101-106
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    • 2011
  • Purpose : This study evaluated the potential use of the computed tomography indices (CTI) on cone beam CT (CBCT) images for an assessment of the bone mineral density (BMD) in postmenopausal osteoporotic women. Materials and Methods : Twenty-one postmenopausal osteoporotic women and 21 postmenopausal healthy women were enrolled as the subjects. The BMD of the lumbar vertebrae and femur were calculated by dual energy X-ray absorptiometry (DXA) using a DXA scanner. The CBCT images were obtained from the unilateral mental foramen region using a PSR-$9000N^{TM}$ Dental CT system. The axial, sagittal, and coronal images were reconstructed from the block images using $OnDemend3D^{TM}$. The new term "CTI" on CBCT images was proposed. The relationship between the CT measurements and BMDs were assessed and the intra-observer agreement was determined. Results : There were significant differences between the normal and osteoporotic groups in the computed tomography mandibular index superior (CTI(S)), computed tomography mandibular index inferior (CTI(I)), and computed tomography cortical index (CTCI). On the other hand, there was no difference between the groups in the computed tomography mental index (CTMI: inferior cortical width). Conclusion : CTI(S), CTI(I), and CTCI on the CBCT images can be used to assess the osteoporotic women.

여대생의 생활습관, 체성분 및 골밀도간의 관계 (Relationship among Life Style, Body Composition, and Bone Mineral Density (BMD) in Female College Students)

  • 강희영
    • 기본간호학회지
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    • 제16권3호
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    • pp.325-332
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    • 2009
  • Purpose: This study was done to investigate the relationship among the life style, body composition, and BMD in female college students. Method: For this study, 320 female college students aged 18 through 35 were sampled. Data were collected from June to September, 2007. The BMD was measured with Dual Energy X-ray Absorptiometry, body composition with the Body Composition Analyzer, and stature was also taken. Results: Our findings indicated that the relationship among the life style, body composition and BMD significantly varied and that meal times (F=3.318, p= .038) and muscle mass (r= .240, p< .001) and fat-free mass (r= .233, p< .001) showed a significant positive relationship with BMD. Conclusions: Our findings indicated that optimal levels of the fat-free mass and muscle mass should be maintained. Since a decrease in the quantity of bones is expected to cause health issues for women after menopause, it is necessary to reduce risk factors including the unhealthy life style of college women that may lead to osteoporosis, and to introduce preventive nursing interventions against osteoporosis.

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우리나라 성인 남녀의 비만이 주관적 건강상태 지각에 미치는 영향 (Association between Obesity and Self-Rated Health in Korean Males and Females)

  • 하영미;박현주
    • Journal of Korean Biological Nursing Science
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    • 제14권3호
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    • pp.203-211
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    • 2012
  • Purpose: The purpose of this study was to investigate effects of obesity on self-rated health in Korean males and females. Methods: The 2010 Korean National Health and Nutrition Examination Survey (KNHANES V-1) data were used. Participants included 1,231 males and 1,289 females aged 20 years or older and had no disease. Chi-square test, t-test, and multiple logistic regression with dummy variables using SAS 9.2 were performed. Results: From univariate analysis, total body fat was significantly greater in males with a self-perception of poor health (p=.006), and the percentage of total body fat was significantly greater in males and females with a self-perception of poor health (p for all=.001). After controlling for demographic and health behavior variables, similar results were found. Females with higher education had a healthy perception of their health. Smoking for males and drinking for females were significantly related to unhealthy perception of their health. Conclusion: The current study provides evidence that obese Korean males and females had worse self-rated health, even though they had no disease. In particular, it is important to note that the relatively direct obesity measures from Dual Energy X-Ray Absorptiometry, such as total body fat and percentage of body fat, were significantly related to self-rated health.

파킨슨병 환자의 골밀도 영향요인 (Factors Affecting Bone Mineral Density of the Femur in Parkinson's Disease Patients)

  • 김상희;이은남;박은영;김재우
    • 근관절건강학회지
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    • 제19권3호
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    • pp.350-361
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    • 2012
  • Purpose: The purpose of this study is to explore the level of bone mineral densities of the femur neck and to identify factors affecting bone mineral density of the femur in Parkinson's disease (PD) patients. Methods: Participants were 121 PD patients visiting the outpatient clinic of D University Hospital in B City. Bone mineral density was measured at the femur neck by using a dual-energy x-ray absorptiometry. The serum vitamin D level, the amounts of milk intake, caffeine intake, cigaret smoking, and alcohol consumption, and the number of steps taken daily were measured. Past and present disease history, the medication history, and duration of the disease were also collected. The level of disability was obtained by neurologists using the Hoehn and Yahr stage and the Unified Parkinson's Disease Rating Scale. Results: Among PD patients, 57% had osteopenia and 15.7% had osteoporosis. The bone mineral density of the femur was associated with weight, serum vitamin D level, age, and working status. Conclusion: The identification of weight and serum vitamin D level as important predictive factors emphasizes the importance of balanced nutrition for PD patients.

비만환자의 체중감량에 있어 슬림다이어트 처방의 유용성 평가를 위한 임상시험 (Clinical Trial of Herbal formula (Slim-diet) on Weight Loss in Obese Pre-menopausal Korean Females)

  • 정원석;신현대;송미연
    • 한방비만학회지
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    • 제3권1호
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    • pp.1-6
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    • 2003
  • Background: Recently, Obesity has become a social problem in all over the world including Korea. Dietary regulation, exercise and behavior modification therapy are used in the treatment of obesity, but until now, there have been many difficulties in treating it. Objectives: To examine in obese pre-menopausal Korean females the short-term efficacy for weight loss of an herbal formula (Slim-diet). Design: A 6-week longituidinal evaluation of a herbal formula (Slim-diet) in 35 pre-menopausal females (baseline age $31.6\;{\pm}\;6.1$) with body mass index > $25kg/m^2$. Body composition was measured using bioimpedence analysis (BIA) and dual energy X-ray absorptiometry (DXA). Anthropometry was done by same observer. Total cholesterol, total lipid, triglyceride, and LDL-cholesterol were measured. Results: Herbal formula (Slim-diet) treatment produced significant loss of weight (P < 0.001), percent of body fat (P < 0.001, both BIA and DXA) and waist circumference (P < 0.001). It also produced significant reduction of total cholesterol and total lipid levels (P < 0.05).

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허리뼈 회전과 기울기에 따른 골밀도 분석 (Analysis of Bone Mineral Density According to Lumbar Spine Rotation and Inclination)

  • 제재용
    • 한국방사선학회논문지
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    • 제13권5호
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    • pp.779-783
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    • 2019
  • 골다공증은 골절의 위험도가 증가하는 질환으로, 본 연구에서는 이중에너지 엑스선 흡수계측법(DXA)을 이용하여 허리뼈의 회전과 기울기에 따른 골밀도를 비교 분석하였다. 실험 결과 허리뼈의 회전에 따른 골밀도는 감소하지만 허리뼈의 기울기 변화에서는 그 결과는 예측할 수 없었다. 이러한 이유는 허리뼈의 기울기 변화가 허리뼈 1번과 4번사이 일부분에서 겹침으로 인하여 뼈의 전체 면적과 골밀도가 변화한 결과로 판단되어진다. 즉, 방사선사는 정확한 골밀도 결과 값을 얻기 위하여 허리뼈의 회전방지와 기울기에 따른 겹침을 방지하기 위한 노력이 필요할 것으로 판단되어진다.

항바이러스제에 의한 저인산성 골연화증으로 진단된 난치성 요통 (Recalcitrant Low Back Pain Diagnosed as Hypophosphatemic Osteomalacia Induced by Antiviral Medication)

  • 채현준;원준희;이원경;김기원
    • Clinical Pain
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    • 제20권2호
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    • pp.131-134
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    • 2021
  • We report a rare case of anti-viral agent induced hypophosphatemic osteomalacia presented with localized and radicular pain. A 51-year-old man, who had been taking adefovir for chronic hepatitis, had experienced low back pain radiating to his right thigh for 2 years. With impression of lumbar disc herniation, he underwent magnetic resonance imaging and found multi-level disc herniation with facet joint synovial cysts. He received transforaminal epidural steroid injections, however, symptoms did not improve. To find other possible causes, additional tests were performed. Blood tests revealed hypophosphatemia and increased serum alkaline phosphatase, and osteoporosis was noted in dual-energy X-ray absorptiometry with multiple hot uptakes in bone scan. After replacement of adefovir to entecavir and supplement of phosphate and vitamin D, phosphate level and the clinical symptoms were improved. This is the first to report the presentation of osteomalacia due to anti-viral agent as radicular low back pain with facet synovial cysts.

A Pilot Study on Hip Bone Mineral Densities Estimation from Forearm CBCT images

  • Ko, Hoon;Lee, Chang-Hoon;Jeong, Kwanmoon;Lee, Myeung Su;Nam, Yunyoung;Yoon, Kwon-Ha;Lee, Jinseok
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제11권12호
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    • pp.6054-6068
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    • 2017
  • In this paper, we defined the relative cross-sectional area of forearm cortical bone and investigated its correlation with hip bone mineral density values of total femur, femoral neck, femoral trochanter, femoral inter-trochanter and femoral ward's triangle, respectively. Based on the correlations, we established a linear transformation between the relative cross-sectional area of forearm cortical bone and each hip bone BMD. We obtained forearm images using CBCT and hip bone BMDs using dual-energy X-ray absorptiometry (DXA) for 28 subjects. We also investigated the optimal forearm region to provide the strongest correlation coefficient. We used the optimized forearm region to establish each linear transformation to estimate BMD values for total femur, femoral neck, femoral trochanter, femoral inter-trochanter and femoral ward's triangle from the relative cross-sectional area of forearm cortical bone, respectively. We observed the strong correlations with total femur (r=0.889), femoral neck (r=0.924), femoral trochanter (r=0.821), femoral inter-trochanter (r=0.867) and femoral ward's triangle (r=0.895), respectively. The strongest correlation was observed in the forearm mid-shaft regions. Our results suggest that the hip bone BMD values can be simply estimated from forearm CBCT images in a convenient sitting position without X-ray exposure on a hip including genital organs, and may be useful for screening osteoporosis.