• Title/Summary/Keyword: Mammography screening

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An Optimized Deep Learning Techniques for Analyzing Mammograms

  • Satish Babu Bandaru;Natarajasivan. D;Rama Mohan Babu. G
    • International Journal of Computer Science & Network Security
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    • v.23 no.7
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    • pp.39-48
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    • 2023
  • Breast cancer screening makes extensive utilization of mammography. Even so, there has been a lot of debate with regards to this application's starting age as well as screening interval. The deep learning technique of transfer learning is employed for transferring the knowledge learnt from the source tasks to the target tasks. For the resolution of real-world problems, deep neural networks have demonstrated superior performance in comparison with the standard machine learning algorithms. The architecture of the deep neural networks has to be defined by taking into account the problem domain knowledge. Normally, this technique will consume a lot of time as well as computational resources. This work evaluated the efficacy of the deep learning neural network like Visual Geometry Group Network (VGG Net) Residual Network (Res Net), as well as inception network for classifying the mammograms. This work proposed optimization of ResNet with Teaching Learning Based Optimization (TLBO) algorithm's in order to predict breast cancers by means of mammogram images. The proposed TLBO-ResNet, an optimized ResNet with faster convergence ability when compared with other evolutionary methods for mammogram classification.

Evaluation of BreastLight as a Tool for Early Detection of Breast Lesions among Females Attending National Cancer Institute, Cairo University

  • Labib, Nargis Albert;Ghobashi, Maha Mohamed;Moneer, Manar Mohamed;Helal, Maha Hesien;Abdalgaleel, Shaimaa Abdalaleem
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.8
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    • pp.4647-4650
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    • 2013
  • Background: Breast illumination was suggested as a simple method for breast cancer screening. BreastLight is a simple apparatus for this purpose. Objective: To evaluate the diagnostic performance of BreastLight as a screening tool of breast cancer in comparison to mammography and histopathology. Materials and Methods: This hospital-based cross sectional study was conducted in the mammography unit of the radiodiagnosis department at National Cancer Institute, Cairo University. All participants were subjected to breast examination with the BreastLight tool, mammography and ultrasonography. Suspicious cases were biopsied for histopathological examination which is considered as a gold standard. Results: The mean age of the participants was $46.3{\pm}12.4$ years. Breast illumination method had sensitivity, specificity, positive predictive value, negative predictive value and total accuracy of 93.0%, 73.7%, 91.4%, 77.8% and 88.2%, respectively in detection of breast cancer. Conclusions: Breast illumination method with BreastLight apparatus is a promising easy-to-use tool to screen for breast cancer suitable for primary health care physician or at-home use. It needs further evaluation especially in asymptomatic women.

The Roles of Menopausal-specific Quality of Life on Breast Cancer Screening Beliefs in Menopausal and Postmenopausal Women

  • Cheng, Winnie Lai-Sheung
    • Journal of Menopausal Medicine
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    • v.24 no.3
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    • pp.188-195
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    • 2018
  • Objectives: This study investigated the association between menopausal-specific quality of life (MENQOL) and breast cancer screening beliefs among Hong Kong Chinese menopausal and postmenopausal women. Methods: A cross-sectional study was employed to collect data. The questionnaire was distributed to a convenience sample of 218 women aged above 45. The outcome variables were breast cancer screening beliefs and breast examination. Multiple regression analyses were conducted to test the effect of 4 domains in MENQOL (vasomotor, psycho-social, physical, and sexual symptom) and the health behaviors on the 2 outcome variables. Results: This study found that the overall MENQOL scores (in particular psycho-social, and physical aspects) were significantly associated with positive attitudes toward health check-ups and better knowledge and perceptions in breast cancer. Regular exercise was also significantly related to breast examination. Conclusions: MENQOL (especially psycho-social and physical domain) and regular exercise are important factors associated with breast cancer screening beliefs. The results of this study illuminate health care professionals to develop primary health care strategies to improve the quality of life of mid-life women.

Comparison of Average Glandular Dose in Screen-Film and Digital Mammography Using Breast Tissue-Equivalent Phantom (유방조직등가 팬텀을 이용한 Screen-Film과 Digital Mammography에서의 평균 유선선량)

  • Shin, Gwi-Soon;Kim, Jung-Min;Kim, You-Hyun;Choi, Jong-Hak;Kim, Chang-Kyun
    • Journal of radiological science and technology
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    • v.30 no.1
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    • pp.13-23
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    • 2007
  • In recent years, mammography system is changed rapidly from conventional screen-film system to digital system for application to screening and diagnosis. Digital mammography system provides several advantages over screen-film mammography system. According to the information provided by the manufacturer, digital mammography system offers radiation dose reduction in comparison with screen-film mammography system, because of digital detector, particularly direct digital detector has higher x-ray absorption efficiency than screen-film combination or imaging plate(IP). We measured average glandular doses(AGD) in screen-film mammography(SFM) system with slow screen-film combination, computed mammography(CM) system, indirect digital mammography(IDM) system and direct digital mammography(DDM) system using brest tissue-equivalent phantom(glandularity 30%, 50% and 70%). The results were shown as follows : AGD values for DDM system were highest than those for other systems. Although automatic exposure control(AEC) mode was selected, the curve of the AGD values against thickness or glandularity increased significantly for the SFM system with the uniform target/filter(Mo/Mo) combination. Therefore, the AGD values for the high energy examinations were highest in the SFM system, and those for the low energy examinations were highest in the DDM system. But the curve of the AGD values against thickness and glandularity increased gently for CM system with the automatic selection of the target/filter combination (from Mo/Mo to Mo/Rh or from Mo/Rh to Rh/Rh), and the AGD values were lowest. Consequently, the parameters in mammography for each exposure besides detection efficiency play an important role in oder to estimate a patient radiation dose.

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Assessment of Organ Dose in Mammoplasty Patient by Monte Carlo Simulation during Mammography (유방촬영 시 몬테칼로 전사모사를 이용한 유방 성형 환자의 장기선량 평가)

  • Kim, Ji-Soo;Cho, Yong-In;Kim, Jung-Hoon
    • Journal of radiological science and technology
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    • v.43 no.5
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    • pp.337-341
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    • 2020
  • Although the screening with a mammography has been shown to be economical, simple and effective in detecting breast cancer, it is accompanied by the risk from radiation. Therefore, this study analyzed the glandular dose and organ dose according to the target-filter combination and the presence and absence of implants using Monte Carlo simulation. The results indicate that at a tube voltage of 30 kV and a tube current of 50 mAs, the dose increased in the order of Mo/Mo. Mo/Rh, Rh/Rh and W/Rh in proportion to the atomic number of the target-filter. In addition, in phantom without implant a reduction in dose was seen when compared to the phantom with implant. The organ dose was highest in the lens except for the breast on the examination side regardless of the presence or absence of the implant. These results may contribute to use basic data for the diagnostic reference level of breast plastic surgery patients.

An Unusual Presentation of Extensive Ductal Carcinoma in Situ Accompanying Invasive Ductal Carcinoma on MRI: A Case Report (침윤성 유방암에 동반된 광범위한 관상피내암의 비전형적 자기공명영상 소견: 증례 보고)

  • Yeon Jung Kim;Hyun Kyung Jung;Woogyeong Kim
    • Journal of the Korean Society of Radiology
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    • v.83 no.4
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    • pp.898-903
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    • 2022
  • The incidence of ductal carcinoma in situ has increased with the rise in screening mammography; currently, ductal carcinoma in situ constitutes 20%-25% of all breast cancers, and up to half of them may become invasive. Its early detection is critical in improving the cure rate. Moreover, MRI has higher sensitivity for its detection than mammography. Herein, we report an unusual case of ductal carcinoma in situ presenting as a continuous, serpentine, linear enhancement with regional distribution on MRI.

Differences in Breast Cancer Screening Rates according to Obesity and Weight Perception among Korean Women (한국 여성의 비만과 체형인식왜곡에 따른 유방암 검진율 차이)

  • Kim, Sejeong;Kim, Hee-Seung;Kim, Hye-Jin
    • Journal of Korean Biological Nursing Science
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    • v.20 no.3
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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.

Health Problem of the Middle-Aged Women (종합 건강검진 과정에서 나타난 일부 중년기 여성의 건강문제)

  • 성미혜
    • Journal of Korean Academy of Nursing
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    • v.29 no.2
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    • pp.258-270
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    • 1999
  • This study was carried out to offer the basic data for more qualitative lives of the middle-aged women through their health maintenance and control. So, the researcher reviewed and analyzed the health problems of the middle-aged women, the differences of main symptoms in each subject, positive ratcs in screening tests, the difference of screening tests with age and the correlation of obesity and blood pressure with screening tests. All subjects were 218 women(40-59years) who had a check-up at a comprehensive health check-up center in K University Hospital in Seoul from July 1, 1998 to August 31. 1998. Questionaires were developed to get subjects, general characteristics. main symptoms, medical examination and diagnosed disease by the researcher referring through the questionaires of comprehensive health check-up center and the medical recorders were used as a tool of study. The researcher analyzed the data with SPSS PC+ ; the distribution of the subjects, general characteristics and main symptoms with percentage : the difference between main symptoms and screening tests with X$^2$-test, ANOVA. The results are as follows. 1) Among the age distribution, most were 40-45 years old and unemployed. 2) The most common complaints were indigestion in digestive system, cough in respiratory system, heart beat in cardiovascular system, general sweat in endocrine system. edema in urinary system, easy bruise in hematologic system, backache in musculoskeletal system, headache in psychoneurologic system, lochia in gynecology, itch in dermatology system, eye ball pain in visual system and tinnitus in auditory system. 3) In main symptoms according to age, the 40-45 age group had a higher rate of complaints in digestive system and gynecology than other age group ; the 46-49 age group in endocrine system. 4) The main symptoms according to diagnosis had no difference statistically. 5) The screening tests which showed high rates of abnormality were mammography(the highest), abdominal ultrasonography, upper gastrointestinal series/gastrofiberscopy, PFT. In all age group the highest rate of abnormality was seen in mammography. 6) In screening tests according to age. the 46-49 age group showed higher positive rates of pap smear, blood sugar test, urine test than any other age group ; the 50-55 age group showerd higher positive rates of obesity, BP, chest X-ray, abdominal ultrasonography, ESR, SGOT, CRP and urine micro. 7) In correlation of obesity with screening test, the obesity group showed higher positive rates of blood pressure, chest X-ray, abdominal ultrasonography, HCT and CRP than the normal weight group. 8) In correlation of blood pressure with screening test, the hypertension group showed higher positive rate of obesity, chest X-ray, abdominal ultrasonography, pap smear and blood sugar than the normal blood pressure group. In conculusion, the middle-aged women have various physical symptoms and affected by age. The obesity and BP have an important effect on the health of the middle aged women. Therefore, this study is considered significant as data for qualitative lives of the middle-aged women playing an important part of family health care by catching of their health problem complaints for prevention of disease and promotion of health.

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Effect of a Training Programme on Knowledge of Nurses from a Missionary Hospital in India Regarding Breast Cancer and its Screening

  • Khokhar, Anita
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.12
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    • pp.5985-5987
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    • 2012
  • A cross-sectional study was conducted among nursing staff of a missionary hospital of Delhi in June 2009. All the nurses were invited to participate in the training programme on breast cancer and techniques of breast self examination (BSE). A questionnaire was administered to all 259 participants seeking information on their level of awareness regarding breast cancer and relevant screening guidelines. With the help of 5 training workshops all the nurses were imparted training regarding the most appropriate technique of doing breast self exams. The mean age of the participants was 35.8 years. Out of a total of 259 nursing staff members 77.2% correctly answered all the 10 questions regarding high risk factors for breast cancer and after the training programme this increased to 100% (p<0.05). Only 65.2% of the participants gave correct responses to all the 8 questions regarding correct technique of performing a BSE, which after the training programme increased to 99.3% (p<0.05). At the baseline only 56.8% knew all the three screening methods correctly and after the intervention 98.7% could correctly mark the responses regarding screening (p<0.05). The actual practice of following the screening guidelines amongst the nursing staff was poor. Only 26 (10.03%) had ever done a BSE, none performed it monthly, 58 (22.4%) had ever gone themselves for a CBE and 18 (6. 94%) had ever undergone mammography.