• 제목/요약/키워드: Body fat computed tomography

검색결과 44건 처리시간 0.031초

광대뼈 축소성형술 시 합병증의 예방과 불만족스러운 결과에 대한 해결방안 (Prevention of Complication and Management of Unfavorable Results in Reduction Malarplasty)

  • 양정학;이지혁;양두병;정재영
    • Archives of Plastic Surgery
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    • 제35권4호
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    • pp.465-470
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    • 2008
  • Purpose: Reduction malarplasty is a popular aesthetic surgery for contouring wide and prominent zygoma. However a few patients complain postoperative results and want to revise the midfacial contour. We analyzed the etiology of unfavorable results and treated unsatisfied midfacial contours after reduction malarplasty. Methods: Total 53 patients were performed secondary operation for correction of unfavorable results after primary reduction malarplasty from elsewhere. Midfacial contour was evaluated with plain films and three-dimensional computed tomography. Unfavorable midfacial contours were corrected by secondary malarplasty. Flaring of zygomatic arch was reduced with infracturing technique and prominent zygomatic body was reduced with shaving. Drooped or displaced zygoma complex has been suspended to higher position and fixed with interosseous wiring. As adjuvant procedure, autologous fat injection has been performed in the region of depressed zygomatic body region. Results: The etiology of unfavorable midfacial contour after reduction malarplasty was classified into 7 categories: undercorrection of zygomatic arch(n=8), undercorrection of zygomatic arch and undercorrection of zygomatic body(n=6), undercorrection of zygomatic arch and overcorrection of zygomatic body(n=28), overcorrection of zygomatic body(n=3), simple asymmetry(n=4), malunion(n=2) or nonunion(n=2). Slim and balanced malar contour was achieved with treatment. And most of the patients were satisfied with the results of the surgery. Conclusion: To prevent the unfavorable results after reduction malarplasty, complete analysis of facial contour, choice of appropriate operation technique, precise osteotomy under direct vision, and security of zygoma position are important.

비만인과 정상인에서 24시간 소변 내 나트륨 배출량과 비만관련 대사위험지표의 관련성 (Associations between 24-hour Urine Sodium Excretion Level and Obesity-related Metabolic Risk Factors)

  • 오현우;김현정;전대원;이승민
    • 대한지역사회영양학회지
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    • 제20권6호
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    • pp.460-467
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    • 2015
  • Objectives: Excess sodium intake has been linked to obesity and obesity-related indices. However, the scientific evidence for this association is inadequate. The purpose of this study was to investigate the association between urinary sodium excretion and obesity-related indices among Korean adults. Methods: A convenience sample of 120 subjects (60 obese and 60 non-obese subjects) were recruited applying frequency matching for sex and age between two groups. Sodium intake level was assessed through 24-hour urine collection. Obesity-related metabolic risk factors, including fasting blood lipid indices, subcutaneous and visceral fat through computed tomography (CT), insulin resistance indices, blood pressure and liver enzymes were measured in all subjects. These obesity-related metabolic risk factors were compared between obese and non-obese group according to sodium excretion levels (<110 mEq/day, 110~180 mEq/day, >180 mEq/day). Results: After adjusting for age, gender, health behaviors (smoking, exercise, drinking), and energy intake, several obesity-related metabolic risk factors, including abdominal circumference, body fat percentage, subcutaneous and visceral fat, triglyceride, and systolic blood pressure were found to be significantly deteriorated as the sodium excretion level increases. In addition, multivariate adjusted-odds ratios of abdominal obesity, high blood triglyceride, and high blood pressure were found significantly higher in the highest sodium excretion group compared to the lowest group. The mean number of metabolic syndrome risk factors was also significantly greater in the highest sodium excretion group than in the lowest group. Conclusions: The current study findings suggested that high sodium intake can affect obesity and metabolic syndrome risk negatively, implying the necessity of future research on low-sodium diet intervention in relation to obesity and related health problems.

한국 과체중 및 비만 여성에서 우울 및 스트레스와 비만지표와의 상관관계 (Relationship between Depression, Stress and Obesity Indexes in Overweight and Obese Korean Women)

  • 김은주;이아라;황미자;조재흥;송미연
    • 한방비만학회지
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    • 제11권1호
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    • pp.15-24
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    • 2011
  • Objectives Our purpose of this study was to evaluate the association between depression, stress, and obesity indexes. Methods This study was performed in 110 healthy overweight and obese(BMI${\geq}23\;kg/m^2$) women in Korea. Subjects underwent abdominal CT(computed tomography) scanning and were asked to complete Beck depression inventory(BDI), social readjustment rating scale(SRRS), and stress response inventory(SRI) questionnaires. Weight, body-mass index(BMI), waist circumference(WC), and waist-hip ratio(WHR) were evaluated. Subjects were given written consent and this study was performed under permission of institutional review board of KyunHee University Hospital at Gangdong. Results 1. BDI and SRI were significantly correlated with VFA(visceral fat area)(p<0.05). However, other obesity indexes were not significantly correlated with BDI and SRI(p>0.05). 2. SRRS was not significantly correlated with all obesity indexes(p>0.05). Conclusions This study suggests that depression and stress might be correlated with visceral fat, and this result would be helpful for planning a treatment schedule of obese patients with depression or stress in the clinic.

Analysis of gluteal subcutaneous and muscle thickness in infants and children for application to intramuscular injection, autologous fat grafting, and gluteal artery perforator flaps

  • Min, Hyung Jun;Kim, Yu Jin
    • Archives of Plastic Surgery
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    • 제45권6호
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    • pp.550-556
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    • 2018
  • Background To achieve improvements in intramuscular injection, autologous fat grafting, and gluteal artery perforator flaps in infants and children, the relationships of computed tomography (CT)-determined gluteal muscle thickness (MT) and subcutaneous tissue thickness (SCT) with age and body mass index (BMI) were analyzed. Methods Gluteal SCT and MT at ventrogluteal (VG) and dorsogluteal (DG) sites were measured in a standardized manner in 350 patients aged 0 to 6 years who had visited a tertiary hospital and had undergone abdominopelvic CT between January 2005 and December 2016. Recorded measurements were analyzed using one-way analysis of variance and stepwise multiple regression to identify the factors that were most closely related to MT and SCT. Results Subcutaneous tissue at VG sites was thinner than at DG sites, but not significantly so in any age group. Muscles tended to be thinner at VG sites in 4 to 7-year-old, but thicker at VG sites in 1 to 3-year-old, though the differences were not significant. MT in the VG and DG regions was found to be related to age, and SCT in these regions to be related to age and BMI. Conclusions The VG and DG sites should be considered as alternatives for intramuscular injection in infants and children when the anterolateral site is problematic. In addition, considering the gluteal MT and SCT of infants and children should help produce good results in autologous fat grafting and gluteal artery perforator flap harvesting.

비만여성에서 내장지방과 한방비만변증의 연관성 (Relationship between Visceral Adipose Tissue and Oriental Obesity Pattern Identification in Obese Korean Women)

  • 김은주;이아라;황미자;조재흥;최선미;정석희;송미연
    • 한방재활의학과학회지
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    • 제21권2호
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    • pp.279-288
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    • 2011
  • Objectives : Our purpose of this study was to evaluate the association between abdominal adipose tissue and oriental obesity pattern identification. Methods : This study was performed in 78 healthy obese(BMI(body mass index)${\geq}25kg/m^2$) women in Seoul. Subjects underwent abdominal CT(computed tomography) scanning and were asked to complete the oriental obesity pattern identification questionnaire. Subjects were given written consent and this study was performed under permission of institutional review board of Kyung-hee East-west Neo medical center. Results : 1. VFA(visceral fat area) and VSR(visceral/subcutaneous adipose tissue ratio) were significantly correlated with stagnation of the liver qi(肝鬱, gan-yu)(p<0.05). But, other patterns were not significantly correlated with oriental obesity pattern identification(p>0.05). 2. We evaluated a difference of oriental obesity pattern identification score in visceral obesity group(n=34) versus non-visceral obesity group(n=44). Scores of all patterns except food accumulation(食積, shi-ji) were significantly higher in the visceral obesity group than in the non-visceral obesity group(p<0.05). Especially, there was a further significant difference in stagnation of the liver qi(肝鬱, gan-yu)(p<0.01). Conclusions : Generally, the stagnation of the liver qi(肝鬱, gan-yu) has a close relation with stress and depression. This study suggests that stress and depression might be correlated with visceral fat, and the use of oriental obesity pattern identification would be helpful for planning a treatment schedule of visceral obesity in the clinic.

Liver CT 검사에서 프로토콜 변화에 따른 선량 감소와 영상의 질 개선에 관한 연구 (Improved Image Quality and Radiation Dose Reduction in Liver Dynamic CT Scan with the Protocol Change)

  • 조유진;조평곤
    • 대한방사선기술학회지:방사선기술과학
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    • 제38권2호
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    • pp.107-114
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    • 2015
  • 간 역동적 CT(Liver Dynamic Computed Tomography; LDCT) 검사에서 일반적으로 사용하는 프로토콜과 관전압을 낮게 설정한 후 프로토콜을 변화시켰을 때 방사선량과 영상의 질을 비교하여 영상의 질을 유지하면서 방사선량을 감소시킬 수 있는 방안을 알아보고자 하였다. LDCT를 시행한 환자 중 신체질량지수(body mass index; BMI)가 18.5~24인 환자 40명을 대상으로 일반적인 복부 CT 검사 프로토콜을 적용한 A그룹 20명(관전압: 120 kVp, SAFIRE strength1)과 관전압을 낮게 설정한 B그룹 20명(관전압: 100 kVp, SAFIRE strength 0~5 적용)이었다. 영상의 질 평가는 동맥기의 간 실질 조직, 대동맥, 상장간막동맥, 복강동맥, 내장지방 그리고 백그라운드에 관심영역(region of interest; ROI)을 설정해 잡음(noise), 신호대 잡음비(signal to noise ratio; SNR), 대조도 대 잡음비(contrast to noise ratio; CNR), CT number를 측정 비교하였다. 또한 정성적 평가는 경험이 풍부한 영상의학과 전문의 2명이 0~3점까지로 평가하였다. 방사선량은 총 DLP(dose length product)와 유효선량, CTDIvol(volume computed tomography dose index)을 비교하였다. 관전압 100 kVp에서 SAFIRE가 높을수록 잡음은 감소하고, CT number는 증가하였다. 따라서 SNR과 CNR은 SAFIRE 단계가 높을수록 증가하였다. 관전압 120 kVp와 비교하여 잡음, SNR, CNR이 SAFIRE strength 2, 3에서 가장 유사하였다. 정성적 평가는 SAFIRE strength 2가 가장 많았고 관전압이 100 kVp일 때 영상의 질이 더 좋다고 평가한 경우는 SAFIRE 1이었다. 방사선량은 120 kVp에 비해 100 kVp에서 21.69% 감소하였다. BMI가 비교적 높지 않은 LDCT 검사의 경우 공장에서 출고될 당시에 관전압이 높게 설정되어 있어 불필요한 방사선피폭이 우려되고 있는 현실을 고려하면, 본 연구 결과에 따라 관전압을 낮게 설정하고 SAFIRE strength를 2로 조정하면 영상의 질 저하 없이 방사선량도 감소시킬 수 있을 것으로 사료된다.

하경부 종물로 발현한 고립성 섬유종 1예 (A Case of Solitary Fibrous Tumor Presenting as Lower Neck Mass)

  • 금상연;김정규
    • 대한두경부종양학회지
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    • 제37권2호
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    • pp.87-90
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    • 2021
  • Solitary fibrous tumor (SFT) is rare mesenchymal tumor usually arising from pleura. SFT can be found at all anatomic site in our body but incidence of SFT is much lower in head and neck region especially at lower neck area. We found a case of SFT that presented as a lower neck mass in a 41-year old woman. Ultrasonography showed a 3×1cm sized hypoechoic mass in the intermuscular fat plane of left lower neck, and computed tomography showed a well circumscribed, low-density mass with contrast enhancement. Fine needle aspiration showed no malignant cells with abundant red blood cells, but it was not possible to completely rule out malignant tumors or nodules clinically. Surgery was performed to make a definitive diagnosis and histopathology showed tightly packed, round to fusiform cells with staghorn shaped vessels at microscopic examination. The tumor cell were positive for CD34 but negative for CD31 and S-100 protein.

비만 환자에 대한 태음조위탕(太陰調胃湯) 임상연구 - 무작위배정, 이중맹검, 위약·대조군 임상시험 - (Clinical Trial of Taeeumjowui-Tang(Taiyintiaowei-tang) on Obese Patients - Randomized, Double Blind, Placebo-Controlled Study -)

  • 이지은;송윤경;임형호
    • 한방재활의학과학회지
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    • 제20권4호
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    • pp.197-213
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    • 2010
  • Objectives : The clinical trial was designed to investigate the safety and effects of Taeeumjowui-tang(Taiyintiaowei-tang) extracts on the change of the weight, body compositions, serum in obese patients. Methods : This was a 12-weeks, randomized, double blind, placebo-controlled clinical trial. Patients with a body mass index of either greater than $30kg/m^2$ or between 27 and $30kg/m^2$ with controlled hypertension, diabetes, hyperlipidemia were considered eligible. Participants of 41 obese patients were randomized either to Taeeumjowui-tang(Taiyintiaowei-tang)(23) or placebo(18). After 12 weeks of treatment, we measured anthropometric factors(weight, height, waist circumference, BMI(body mass index) etc.), abdominal fat area by CT(computed tomography)scanning, serum lipid(total cholesterol, tryglyceride, HDL-cholesterol, LDL-cholesterol), blood lever of variety(AST, ALT, BUN, creatinine etc.). Adverse events also evaluated. Results : After 12 weeks of treatment mean weight, waist-circumference, total cholesterol, LDL-cholesterol and score of KEAT-26 were significant changed in Taeeumjowui-tang(Taiyintiaowei-tang). There were no serious adverse events in either groups. Conclusions : There were limited in this study that is conducted within a short period of 12 weeks. but its weight and WC(waist circumference), WHR(waist hip ratio), total cholesterol, LDL-cholesterol and score of KEAT-26 loss effect was significant and it had few adverse events.

골밀도와 수냉증과의 상관성 연구 (A Study on the Correlation between of Bone Mineral Density and Cold Hypersensitivity of Hands)

  • 이동녕;이정임;고호연;김형준
    • 대한한방부인과학회지
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    • 제28권4호
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    • pp.11-20
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    • 2015
  • Objectives The purpose of this study was to examine the relationship between cold hypersensitivity and bone mineral density. Methods 28 outpatients who visited OO University Oriental Hospital from July 11th, 2013 to August 28th, 2013 were analyzed. Patients were subjected to thermometer, and those with thermal difference greater than 0.3 ℃ between upper arm and palm and also with more than VAS 4 of cold hypersensitivity were diagnosed with cold sensitivity. Lumba spine (L2-4) and heel bone measurement were obtained on dual energy X-ray absorptiometry (DEXA) and Quantitative Computed Tomography (QCT). Results 1. There was statistically significant correlation between T-score of DEXA and body weight (0.522), BMI (0.643), OSTA (Osteoporosis elf-assesment Tool for Asians, 0.579), BMI, T-score and Z-score of QCT. OSTA and T-score of QCT (0.521) also had statistically significance. 2. There was no statistically significant correlation between body fat, abdominal obesity rate, degree of cold hypersensitivity, upper arm and palm's temperature difference, palm temperature, height and Z-score, T-score of QCT or T-sore of DEXA. Conclusions Bone mineral density was lower in women who had cold hypersensitivity of hand and feet. But there was no statistically significant correlation between bone mineral density and degree of cold hypersensitivity, upper arm and palm’s temperature difference.

CT 기반 딥러닝을 이용한 만성 폐쇄성 폐질환의 체성분 정량화와 질병 중증도 (CT-Derived Deep Learning-Based Quantification of Body Composition Associated with Disease Severity in Chronic Obstructive Pulmonary Disease)

  • 송재은;박소현;임명남;이은주;차윤기;윤현정;김우진
    • 대한영상의학회지
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    • 제84권5호
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    • pp.1123-1133
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    • 2023
  • 목적 만성폐쇄성폐질환의 CT에서 자동 정량 측정된 체성분과 폐기능 또는 정량적 변수들 사이의 연관성을 알아보고자 하였다. 대상과 방법 총 290명의 만성폐쇄성폐질환 환자를 대상으로 연구하였다. 흉부 CT에서 근육 및 피하지방 부피, T12 레벨에서 근육 및 피하지방 면적 및 골 감쇠를 딥러닝 기반 분할 알고리즘을 사용하여 획득하였다. Parametric response mapping-derived emphysema (이하 PRMemph), PRM-derived functional small airway disease (이하 PRMfSAD) 및 기도 벽 두께(airway wall thickness; 이하 AWT)-Pi10을 정량적으로 평가하였다. Pearson 상관 분석을 사용하여 체성분과 결과 간의 연관성을 평가하였다. 결과 근육과 피하지방의 부피와 면적은 PRMemph와 PRMfSAD와 음의 상관관계를 보였다(p < 0.05). T12에서의 골밀도는 PRMemph와 음의 상관관계를 보였다(r = -0.1828, p = 0.002). 피하지방의 부피와 면적과 T12에서의 골밀도는 AWT-Pi10과 양의 상관관계를 보였다(r = 0.1287, p = 0.030; r = 0.1668, p = 0.005; r = 0.1279, p = 0.031). 반면에 근육 부피는 AWT-Pi10과 음의 상관관계를 보였다(r = -0.1966, p = 0.001). 근육 부피는 폐기능과 의미 있는 연과성을 보였다(p < 0.001). 결론 흉부 CT에서 정량적으로 평가된 체성분은 만성폐쇄성폐질환의 표현형 또는 중증도와 연관성을 보인다.