scholarly journals Comparative analysis of segmentation algorithms for the allocation of microcalcifications on mammograms

Author(s):  
Yu A Podgornova ◽  
S S Sadykov

Breast cancer is the most common disease of the current century in the female population of the world. The main task of the research of most scientists is the detection of this pathology at an early stage (the tumor size is less than 7 mm) when a woman can still be helped. An indicator of this disease is the presence of small-point microcalcifications, located in groups within or in the immediate circle of the tumor. Microcalcification is a small-point character at cancer, reminding grains of sand of irregular shape which sizes are from 100 to 600 microns. The probability of breast cancer increases with the increase in the number of microcalcifications per unit area. So, the probability of cancer is 80% if more than 15 microcalcifications on 1 sq. cm. The microcalcifications are often the only sign of breast cancer, therefore, their detection even in the absence of a tumor node could be a harbinger to cancer. Image segmentation is one way to identify microcalcifications. The conducted research allowed us to choose the optimal segmentation algorithms of mammograms to highlight areas of microcalcifications for further analysis of their groups, sizes, and so on.

Author(s):  
André de Souza Moreira ◽  
Geraldo Braz Junior ◽  
Simara Vieira da Rocha ◽  
Aristófanes Correa Silva ◽  
Anselmo Cardoso Paiva

O câncer de mama tem sido um dos tipos mais frequentes de câncer. Entre a população feminina, esta neoplasia é a principal causa da morte para indivíduos entre 35 e 55 anos de idade. Apesar de ainda não haver modos efetivos de prevenir o câncer de mama, o tratamento do câncer de mama em estágio inicial proporciona maiores chances de cura ao paciente, além de um tratamento menos agressivo. Por isso, a mamografia de rastreamento tem sido fundamental na detecção precoce desta neoplasia. Entretanto,alguns resultados destes exames são comprometidos por diversos fatores, entre eles a qualidade da imagem mamográfica. Neste cenário, a comunidade científica tem despendido esforços visando à construção de sistemas CAD e CADx a fim de dar suporte ao processo de detecção e diagnóstico do câncer de mama através de técnicas de processamento de imagens e visão computacional em imagens médicas. Este artigo apresenta uma proposta de metodologia para a construção de um sistema CAD/CADx que auxilie o processo de detecção e diagnóstico de massas em imagens da mama.Palavras-chave: Câncer de mama. Mamografia. Detecção. Diagnóstico.DETECTION OF MASSES IN BREAST IMAGES USING DIVERSITY INDEX AND GRAPH-BASED SEGMENTATION ALGORITHMSAbstract: Breast cancer has been one of the most frequent types of cancer. Among female population, this disease is the major cause of death for women between 35 and 55 years of age. Although there is still no effective ways to prevent breast cancer, the treatment of breast cancer at an early stage provides greater chances of cure for the patient, and less aggressive treatment. For this reason, screening mammography has been instrumental in the early detection of this malignancy. However, some results of these tests are compromised by several factors, including the quality of the mammographic image. In this scenario, the scientific community has made efforts aimed to building CAD/CADx systems to support the process of detection and diagnosis of breast cancer using techniques of image processing and computer vision in medical imaging. This article proposes a methodology for building a CAD/CADX to assist the process of detection and diagnosis of masses in breast imaging.Keywords: Breast cancer. Mammography. Detection. Diagnosis.DETECCIÓN DE MASAS EN IMÁGENES DE MAMA UTILIZANDO ÍNDICE DE DIVERSIDAD Y ALGORITMOS DE SEGMENTACIÓN EN GRAFOResumen: El cáncer de mama es uno de los tipos más frecuentes de cáncer. Dentro del grupo femenino, este tipo de cáncer es la principal causa de muerte en mujeres entre 35 y 55 años de edad. Aunque aún no hay formas efectivas de prevenir el cáncer de mama, el tratamiento del cáncer de mama en una etapa temprana proporciona mayores posibilidades de curación para el paciente, y menos tratamiento agresivo. Por esta razón, la mamografía ha sido fundamental en la detección precoz de esta neoplasia. Sin embargo, algunos de los resultados de estos ensayos se ve comprometida por varios factores, incluyendo la calidad de la imagen mamográfica. En este escenario, la comunidad científica ha realizado esfuerzos encaminados a la construcción de sistemas CAD / CADx para apoyar el proceso de detección y diagnóstico de cáncer demama utilizando técnicas de procesamiento de imágenes y visión por computador en imágenes médicas. En este artículo se propone una metodología para la construcción de un sistema CAD / CADX para ayudar en el proceso de detección y diagnóstico de las masas en imágenes mamarias.Palabras clave: Cáncer de mama. Mamografía. Detección. Diagnóstico.


2018 ◽  
Author(s):  
Meike Sandepa ◽  
Wahyuny Langelo

Cancer is one of primary causes of death in all around the world. In North Sulawesi, there were an estimated 346 cases in 2013. One of the early detection program which easy to do is BSE. BSE is a screening tool that can get the breast cancer in early stage. Breast cancer is common disease affecting women in age more than 40, but in fact the mothers has not do the BSE regularly. Aim of the study to determine the knowledge of breast cancer early detection and BSE practice among mothers. This studywas to investigate the relationship between the knowledge of breast cancer early detection and BSEpractice. A cross-sectional study with descriptive analyze. The study comprised 55 mothers of ages 3060 years, sampled by purposive sampling. Data was collected by a voluntary self-administrated questionnaire. Among respondents 63,6% who reported had high educational as the latest education. The knowledge about breast cancer early detection among the respondents 92,7% were in good category, 74,5% were practice BSE, and 72,7% were in good category of knowledge who practice BSE. Thesefindings investigate the knowledge of breast cancer early detection has a meaningful relationship with BSE practice among mothers in Tumpaan Baru


2021 ◽  
pp. 30-33
Author(s):  
David Jaynes ◽  
Paul Switzer

The purpose of this article is to provide background information and the current understanding of a less familiar cause of female breast cancer; exposure to ultraviolet light at night. Breast cancer is a common disease that causes significant morbidity and mortality in women. There are several risk factors for breast cancer, most of which are genetic and environmental in nature. An often-overlooked risk factor is exposure to blue light during night shift work, which decreases melatonin production. One of the many cancer-preventing properties of melatonin is to limit estrogen production. Increased lifetime exposure to estrogen is a well-known cause of breast cancer. Awareness of nighttime blue light exposure as a breast cancer risk factor by women doing night shift work and those exposed to nighttime light via smartphones and laptops, is essential information to know so that protective measures can be taken.


2020 ◽  
Vol 1 (50) ◽  
pp. 9
Author(s):  
Cristian Lungulescu ◽  
Mihaela Dănciulescu ◽  
Denisa Bărbulescu ◽  
Ana Dorobanţu ◽  
Georgiana Camen

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