• 대한방사선기술학회지:방사선기술과학
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• 제35권3호
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• pp.249-254
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• 2012

본 논문은 유방암 환자의 접선 조사 시, 치료 전 수행하는 electronic portal image와 치료 계획용 2-D reconstruction image를 비교하는 방법으로 자세의 정확성을 평가하고자 한다. 방사선 치료 중 접선조사(tangential breast treatment)만을 받는 22명의 유방암 환자를 대상으로 자세 정렬의 정확성을 확인 하였다. electronic portal image와 치료 계획용 2-D reconstruction image의 해부학적 기준 매개 변수를 비교하여 그 오차 도를 평가 하였다. 접선조사 환자의 44매 2-D reconstruction image와 110매의 EPID image 상의 비교 기준 매개 변수는 치료 조사면 중심부(field center)의 폐 길이, CLD(central lung distance), 치료 조사면 중심부의 연부조직 길이, CSTD(central soft tissue distance), 상부 총 폐 길이, ALD (above lung distance), 하부 총 폐 길이, BLD(below lung distance)이며, 내측 접선조사면(medial tangential field)에서 각 매개 변수의 오차 평균값은 1.0, -6.4, -2.1, 2.0, 각각의 표준편차(${\sigma}$)는 1.5, 2.3, 4.1, 1.1 이다. 외측 접선조사면(lateral tangential field)의 각 매개 변수 오차 평균값은 -1.5, -4.3, -2.7, -1.3 이며, 각각의 표준편차(${\sigma}$)는 3.3, 2.1, 2.9, 그리고 2.5로 나타났다. 접선조사 치료를 받는 유방암 환자의 EPID image 상에서 CLD, CSTD, ALD 그리고 BLD의 인식은 매우 용이하며 이를 근거로 자세 정렬 오차를 판단하는 것이 시간과 숙련도의 단축을 이끌어 낼 수 있다고 사료된다.

• Journal of Magnetics
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• 제19권4호
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• pp.365-371
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• 2014

The aim of this study was to evaluate the utility of 3-D images by comparing and analyzing reconstructed 3-D images from fast spin echo images of MRI cholangiopancreatography (MRCP) images using maximum intensity projection (MIP) with the subtraction images derived from dynamic tests of magnetic resonance mammography. The study targeted 20 patients histologically diagnosed with pancreaticobiliary duct disease and 20 patients showing pancreaticobiliary duct diseases, where dynamic breast MR (magnetic resonance) images, fast spin echo imaged of pancreaticobiliary duct, and 3-D reconstitution images using a 1.5T MR scanner and 3.0T MR scanner were taken. As a result of the study, the signal-to-noise ratio in the subtracted breast image before and after administering the contrast agent and in the reconstructed 3-D breast image showed a high ratio in the reconstructed image of lesional tissue, relevant tissue, and fat tissue. However, no statistically meaningful differences were found in the contrast-to-noise ratio of the two images. In the case of the MRCP image, no differences were found in the ratios of the fast spin echo image and reconstructed 3-D image.

• 감성과학
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• 제19권1호
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• pp.49-60
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• 2016

본 연구는 유방 보존술(68명)과 유방 전절제술(45명)을 받은 대상자의 수술 후 심신의 변화에 따른 의생활의 공통점과 차이점에 대하여 조사하였다. 공통점으로는 유방 절제 수술로 변형된 체형을 노출시키고 싶어 하지 않았고, 타인에게 본인이 유방암 환자인 것을 알아채주어 배려 해 주기를 바라지 않는 것으로 확인되었다. 그러므로 유방 절제 범위가 큰 유방 전절제술의 대상자는 신체 이미지의 고양을 위하여 절제된 유방의 보완이 가능한 의복 및 보조물(인조 유방)을 선호하였다. 그러나, 유방 전절제술을 받은 대상자를 위한 브래지어나 인조유방은 고가임은 물론, 낮은 감성 만족도를 나타내었고, 특히 유방암 수술을 받은 대상자들을 위한 전문 의복이 필요하다고 응답하였다. 향후, 유방 절제 수술을 받은 한국 여성 대상자를 위한 치유 복장, 브래지어나 인조유방 등의 개발에 있어, 이와 같은 감성 조사가 효과적인 정보 자료로 사용 되어 신체이미지 증진은 물론 삶의 질 향상에 도움이 될 것을 기대한다.

• 여성건강간호학회지
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• 제24권2호
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• pp.163-173
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• 2018

Purpose: To identify factors influencing psychosocial adjustment in patients with surgical removal of benign breast tumor. Methods: With a survey design, data were collected using the Psychosocial Adjustment to Illness Scale-Self Report (PAIS-SR), Body Image Scale, Physical Discomfort Scale, and Family Support Scale with patients who had had surgical removal of a benign breast tumor from September to November 2017. Data were analysed with descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients, and stepwise multiple regression. Results: The mean scores for physical discomfort, body image, family support, and psychosocial adjustment were $1.57{\pm}0.51$, $0.37{\pm}0.64$, $3.62{\pm}0.67$, and $4.00{\pm}0.45$, respectively. Family support, body image, physical discomfort, number of surgical removal of benign breast tumor (twice), and cancer insurance status (yes) were verified as factors influencing psychosocial adjustment. These factors accounted for 57.4% of psychosocial adjustment. Conclusion: In this study, family support, body image, and physical discomfort were identified as significant predictors of psychosocial adjustment. Therefore, this study can be used as fundamental data to develop nursing intervention strategies in order to increase psychosocial adjustment in patients with surgical removal of a benign breast tumor.

• Journal of Korean Biological Nursing Science
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• 제20권3호
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• pp.169-176
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• 2018

Purpose: This study was performed to elucidate whether the obesity or body image is a barrier to breast screening compliance in Korean women. Methods: We included 54,017 women aged between 35 to 70 years from the Korea Community Health Survey (KCHS) 2014 dataset. To identify whether a mutual relationship exists between weight perceptions and breast cancer screening rates, the participants were divided into three groups according to the level of concordance between Body Mass Index (BMI) and a subjective body image. Descriptive analyses, a chi-square test, and multivariate logistic regression analyses were performed. Results: After covariate adjustment, the screening rate of the overweight group was 1.09 times higher than the normal weight group (odds ratio [OR], 1.09; confidence interval [CI], 0.00-0.16; p= .038) and the severe obesity group was 1.20 times lower (OR, 0.83; CI, -0.36-0.00; p= .047). Weight misperception also had a significant influence on breast cancer screening. Especially, The overweight distortion group was less likely to undergo breast cancer screening (OR, 0.93; CI, -0.15-0.00; p= .037). Conclusion: Obesity and weight misperceptions are associated with lower compliance with breast cancer screening guidelines.

• Asian Pacific Journal of Cancer Prevention
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• 제14권1호
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• pp.463-468
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• 2013

Background: Body image dissatisfaction among breast cancer survivors has been associated with psychological stress resultant from breast cancer and resultant surgery. This study aimed to examine the psychometric properties of the Malay Version of the Breast-Impact of Treatment Scale (MVBITS) and to investigate the associations of retained factors with the Hospital Anxiety and Depression Scale (HADS) and the Rosenberg Self-Esteem Scale (RSES). Materials and Methods: The MVBITS was 'forward-backward' translated from English to Malay and then administered to 70 female breast cancer patients who came to the Oncology Clinic of University Malaya Medical Centre, Kuala Lumpur, Malaysia to undergo chemotherapy. Principal component analysis (PCA) with varimax rotation was performed to explore the factor structure of the MVBITS. Associations of retained factors were estimated with reference to Spearman correlation coefficients. Results: The internal consistency reliability of MVBITS was good (Cronbach's alpha 0.945) and showed temporal stability over a 3-week period. Principal component analysis suggested two factors termed as 'Intrusion' and 'Avoidance' domains. These factors explained 70.3% of the variance. Factor 1 comprised the effects of breast cancer treatment on the emotion and thought, while Factor 2 informed attempts to limit exposure of the body to self or others. The Factor 1 of MVBITS was positively correlated with total, depression and anxiety sub-scores of HADS. Factor 2 was positively correlated with total and anxiety sub-scores of HADS. MVBITS was also positively correlated with the RSES scores. Conclusions: The results showed that the Malay Version of Breast-Impact of Treatment Scale possesses satisfactory psychometric properties suggesting that this instrument is appropriate for assessment of body change stress among female breast cancer patients in Malaysia.

• 대한화장품학회지
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• 제38권4호
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• pp.289-296
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• 2012

외과적으로 가슴의 볼륨 측정은 석고법, 가슴 X선 사진을 이용한 가슴의 볼륨을 산출하는 방법과 MRI, 3차원 측정 시스템 등을 이용한 측정 방법들이 주로 이용되었다. 그러나 최근 화장품 영역에서 가슴 볼륨 증가 및 탄력개선 제품의 증가로 효능평가가 필요하나 외과적 방법들의 적용은 어려운 실정이다. 그리하여 본 연구는 화장품 영역에서 최초로 등고선 사진을 이용하여 가슴 탄력개선을 평가하였다. 또한 가슴둘레 측정, 디지털 이미지 분석, 3차원 가슴이미지 분석 값과의 상관성을 비교하였고 등고선 사진평가를 가슴의 탄력을 평가하는 새로운 방법으로 제안하고자 하였다. 본 연구는 병력조사 및 피부 상태 진단을 통해 건강한 여성 피험자 30명이 시험에 참여하였다. 피험자로 하여금 제품사용 전과 2주, 4주, 8주 후 시점에서 가슴둘레 측정, 유두점의 각도와 거리 분석, Moire's Topography를 이용한 scoring, 3D가슴측정을 실시하여 가슴확대 및 탄력개선 정도를 평가하였다. 평가 결과 디지털 이미지를 분석결과 유두점의 각도(Angle)는 시점별로 증가하는 경향을 보였으나 유의성은 없었다. 유두점으로부터 밑가슴까지의 길이(Length)는 시점별로 유의하게 증가하였다(p < 0.05). 또한, 유두점으로부터 밑가슴까지의 높이는 4주 후, 8주 후 시점에서 통계적으로 유의하게 증가하였다(p < 0.05). Moire's Topography Score 평가 결과 각 시점별로 유의하게 개선하였다(p < 0.05). 3차원 가슴 부피 분석 값은 각 시점별로 증가하는 경향을 보였으나 통계적 유의성은 없었다. 상관성 분석결과 Moir$\acute{e}$ tophography score는 디지털 이미지 분석 값 중 길이, 높이와 유의한 상관성이 있었고 3차원 부피 분석 값과 유의한 상관성이 관찰되었다. 따라서 Moire's Topography Score 평가는 이미지 분석과 3차원 부피분석 평가법과 더불어 화장품에 의한 탄력 및 처짐 개선을 평가하는 데 중요한 평가방법으로 사용될 것으로 사료된다.

• 한국융합학회논문지
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• 제10권2호
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• pp.29-34
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• 2019

본 연구는 디지털 유방촬영장치의 DBT(Digital Breast Tomosynthesis)와 FFDM(Full Field DigitalMammography)의 비교를 위해 유방조직등가팬텀을 이용하여 두께와 밀도를 변화시켜 선량 및 화질을 평가하여 DBT의 유용성을 평가하였다. 측정 결과 평균유선선량은 팬텀 두께 6 cm이상 밀도 70% 이상일 때, 두께 7 cm이상 밀도 50% 이상일 때 FFDM 보다 DBT가 낮은 것을 알 수 있었다. 영상 측정 결과, 섬유소는 DBT에서 우수하다고 측정 되었고, 작은 석회화 그룹과 종양에서는 FFDM 이 우수하였다. 유방의 복잡한 조직과 유사한 BR3D 팬텀에서는 모든 두께와 섬유소, 석회화 및 종양 그룹 모두 DBT 가 우수하다고 측정 되었다. DBT는 FFDM보다밀도가 높고 두께가 두꺼운 두께가 두껍고 밀도가 높은 유방에서 영상 품질 우수하고 낮은 선량을 제공함으로서, 한국 여성의 많은 분포를 차지하는 치밀유방에 더 유용할 수 있을 것이라 사료된다.

• International journal of advanced smart convergence
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• 제8권1호
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• pp.24-34
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• 2019

In this research, a practical deep learning framework to differentiate the lesions and nodules in breast acquired with ultrasound imaging has been proposed. 7408 ultrasound breast images of 5151 patient cases were collected. All cases were biopsy proven and lesions were semi-automatically segmented. To compensate for the shift caused in the segmentation, the boundaries of each lesion were drawn using Fully Convolutional Networks(FCN) segmentation method based on the radiologist's specified point. The data set consists of 4254 benign and 3154 malignant lesions. In 7408 ultrasound breast images, the number of training images is 6579, and the number of test images is 829. The margin between the boundary of each lesion and the boundary of the image itself varied for training image augmentation. The training images were augmented by varying the margin between the boundary of each lesion and the boundary of the image itself. The images were processed through histogram equalization, image cropping, and margin augmentation. The networks trained on the data with augmentation and the data without augmentation all had AUC over 0.95. The network exhibited about 90% accuracy, 0.86 sensitivity and 0.95 specificity. Although the proposed framework still requires to point to the location of the target ROI with the help of radiologists, the result of the suggested framework showed promising results. It supports human radiologist to give successful performance and helps to create a fluent diagnostic workflow that meets the fundamental purpose of CADx.

• 산업경영시스템학회지
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• 제31권1호
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• pp.74-82
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• 2008

The objective of this paper is to remove noises of image based on the heuristic noises filter and to extract a tumor region by using morphology techniques in breast ultrasound image. Similar objective studies have been conducted based on ultrasound image of high resolution. As a result, efficiency of noise removal is not fine enough for low resolution image. Moreover, when ultrasound image has multiple tumors, the extraction of ROI (Region Of Interest) is not accomplished or processed by a manual selection. In this paper, our method is done 4 kinds of process for noises removal and the extraction of ROI for solving problems of restrictive automated segmentation. First process is that pixel value is acquired as matrix type. Second process is a image preprocessing phase that is aimed to maximize a contrast of image and prevent a leak of personal information. In next process, the heuristic noise filter that is based on opinion of medical specialist is applied to remove noises. The last process is to extract a tumor region by using morphology techniques. As a result, the noise is effectively eliminated in all images and a extraction of tumor regions is possible though one ultrasound image has several tumors.