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Desenvolvimento de câmaras de ionização especiais para controle de qualidade em mamografia; Development of special ionization chambers for a quality control program in mammography

Silva, Jonas Oliveira da
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 20/05/2013 PT
Relevância na Pesquisa
37.17%
A mamografia é um método de diagnóstico por imagem que utiliza radiação X. No controle de qualidade dos mamógrafos, as câmaras de ionização são usadas para verificar se os parâmetros de exposição das pacientes estão corretos. Contudo, as câmaras de ionização comerciais para dosimetria em mamografia representam alto custo para clínicas de pequeno e médio porte que desejam ter esse equipamento ou para profissionais que trabalham com controle de qualidade. Assim, a característica inovadora deste trabalho foi desenvolver câmaras de ionização para este fim. Neste trabalho foram projetadas, construídas e caracterizadas câmaras de ionização para feixes de radiação X, no intervalo de energia de mamografia. As câmaras de ionização foram caracterizadas em feixes padronizados de radiação X no LCI/IPEN. Os testes principais de caracterização das câmaras de ionização foram: curva de saturação, linearidade da resposta, dependência energética e angular. Os testes de estabilidade da resposta das câmaras de ionização também foram realizados, apresentando resposta dentro de 2,0 % para estabilidade em longo prazo. Os resultados dos demais testes foram em conformidade com normas internacionais. Essas câmaras de ionização foram ainda submetidas a testes de controle de qualidade de mamógrafos quanto à linearidade das taxas de kerma no ar...

Quality assurance and quality control in mammography: a review of available guidance worldwide

Reis, Cláudia; Pascoal, Ana; Sakellaris, Taxiarchis; Koutalonis, Manthos
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica
Publicado em /10/2013 ENG
Relevância na Pesquisa
37.17%
Objectives - Review available guidance for quality assurance (QA) in mammography and discuss its contribution to harmonise practices worldwide. Methods - Literature search was performed on different sources to identify guidance documents for QA in mammography available worldwide in international bodies, healthcare providers, professional/scientific associations. The guidance documents identified were reviewed and a selection was compared for type of guidance (clinical/technical), technology and proposed QA methodologies focusing on dose and image quality (IQ) performance assessment. Results - Fourteen protocols (targeted at conventional and digital mammography) were reviewed. All included recommendations for testing acquisition, processing and display systems associated with mammographic equipment. All guidance reviewed highlighted the importance of dose assessment and testing the Automatic Exposure Control (AEC) system. Recommended tests for assessment of IQ showed variations in the proposed methodologies. Recommended testing focused on assessment of low-contrast detection, spatial resolution and noise. QC of image display is recommended following the American Association of Physicists in Medicine guidelines. Conclusions - The existing QA guidance for mammography is derived from key documents (American College of Radiology and European Union guidelines) and proposes similar tests despite the variations in detail and methodologies. Studies reported on QA data should provide detail on experimental technique to allow robust data comparison. Countries aiming to implement a mammography/QA program may select/prioritise the tests depending on available technology and resources.

Mammography equipment design: impact on radiographers’ practice

Costa, Stefanie; Oliveira, Eva; Reis, Cláudia; Viegas, Susana; Serranheira, Florentino
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica
Publicado em /10/2014 ENG
Relevância na Pesquisa
37.31%
Objectives - Identify radiographers’ postures during frequent mammography procedures related to the mammography equipment and patient characteristics. Methods - A postural task analysis was performed using images acquired during the simulation of mammography positioning procedures. Simulations included craniocaudal/(CC) and mediolateral-oblique/(MLO) positioning in three different settings: radiographers and patients with similar statures, radiographers smaller than the patients and radiographers taller than the patients. Measurements of postural angles were performed by two raters using adequate software and classified according to the European Standard EN1005-4:2005 + A1:2008. Results - The simulations revealed that the most awkward posture in mammography is during the positioning of MLO projection in short-stature patients. Postures identified as causing work-related musculoskeletal disorder (WRMSD) risk were neck extension, arms elevated and the back stooped, presenting angles of 87.2, 118.6 and 63.6, respectively. If radiographers were taller than patients, then the trunk and arm postures were not acceptable. Conclusions - Working in a mammography room leads to awkward postures that can have an impact on radiographers’ health...

Screening of breast lesions: a comparative study between mammography, B-mode ultrasonography, sonoelastography and histological results

Pardal,Raquel Constantino; Abrantes,António Fernando Lagem; Ribeiro,Luís Pedro Vieira; Almeida,Rui Pedro Pereira; Azevedo,Kevin Barros; Figueiredo,Teresa Leonor; Rodrigues,Sónia Isabel
Fonte: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem Publicador: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2013 EN
Relevância na Pesquisa
37.17%
Objective To compare the capacity of mammography, sonoelastography, B-mode ultrasonography and histological analysis to differentiate benign from malignant breast lesions. Materials and Methods A total of 12 histopathologically confirmed breast lesions were documented. The lesions were assessed by means of mammography, B-mode ultrasonography and sonoelastography, and histopathological analysis was utilized as a gold standard. Sensitivity and specificity were calculated. A receiver operating characteristic (ROC) curve was constructed to evaluate the diagnostic performance of the mentioned techniques. Results Sensitivity and specificity in the differentiation between benign and malignant lesions were respectively 100% and 50% for mammography, 100% and 71% for B-mode ultrasonography, and 67% and 83% for sonoelastography. The area under the ROC curve was calculated for the three imaging modalities and corresponded to 0.792 for mammography, 0.847 for B-mode ultrasonography, and 0.806 for sonoelastography. Conclusion Sonoelastography demonstrated higher specificity and lower sensitivity as compared with mammography and B-mode ultrasonography. On the other hand, B-mode ultrasonography had the largest area under the ROC curve. Sonoelastography has demonstrated to be a promising technique to detect and evaluate breast lesions...

Comparative evaluation of digital mammography and film mammography: systematic review and meta-analysis

Iared,Wagner; Shigueoka,David Carlos; Torloni,Maria Regina; Velloni,Fernanda Garozzo; Ajzen,Sérgio Aron; Atallah,Álvaro Nagib; Valente,Orsine
Fonte: Associação Paulista de Medicina - APM Publicador: Associação Paulista de Medicina - APM
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2011 EN
Relevância na Pesquisa
37.37%
CONTEXT AND OBJECTIVE: Mammography is the best method for breast-cancer screening and is capable of reducing mortality rates. Studies that have assessed the clinical impact of mammography have been carried out using film mammography. Digital mammography has been proposed as a substitute for film mammography given the benefits inherent to digital technology. The aim of this study was to compare the performance of digital and film mammography. DESIGN: Systematic review and meta-analysis. METHOD: The Medline, Scopus, Embase and Lilacs databases were searched looking for paired studies, cohorts and randomized controlled trials published up to 2009 that compared the performance of digital and film mammography, with regard to cancer detection, recall rates and tumor characteristics. The reference lists of included studies were checked for any relevant citations. RESULTS: A total of 11 studies involving 190,322 digital and 638,348 film mammography images were included. The cancer detection rates were significantly higher for digital mammography than for film mammography (risk relative, RR = 1.17; 95% confidence interval, CI = 1.06-1.29; I² = 19%). The advantage of digital mammography seemed greatest among patients between 50 and 60 years of age. There were no significant differences between the two methods regarding patient recall rates or the characteristics of the tumors detected. CONCLUSION: The cancer detection rates using digital mammography are slightly higher than the rates using film mammography. There are no significant differences in recall rates between film and digital mammography. The characteristics of the tumors are similar in patients undergoing the two methods.

A multi-centre randomised trial comparing ultrasound vs mammography for screening breast cancer in high-risk Chinese women

Shen, S; Zhou, Y; Xu, Y; Zhang, B; Duan, X; Huang, R; Li, B; Shi, Y; Shao, Z; Liao, H; Jiang, J; Shen, N; Zhang, J; Yu, C; Jiang, H; Li, S; Han, S; Ma, J; Sun, Q
Fonte: Nature Publishing Group Publicador: Nature Publishing Group
Tipo: Artigo de Revista Científica
EN_US
Relevância na Pesquisa
37.24%
Background: Chinese women tend to have small and dense breasts and ultrasound is a common method for breast cancer screening in China. However, its efficacy and cost comparing with mammography has not been evaluated in randomised trials. Methods: At 14 breast centres across China during 2008–2010, 13 339 high-risk women aged 30–65 years were randomised to be screened by mammography alone, ultrasound alone, or by both methods at enrolment and 1-year follow-up. Results: A total of 12 519 and 8692 women underwent the initial and second screenings, respectively. Among the 30 cancers (of which 15 were stage 0/I) detected, 5 (0.72/1000) were in the mammography group, 11 (1.51/1000) in the ultrasound group, and 14 (2.02/1000) in the combined group (P=0.12). In the combined group, ultrasound detected all the 14 cancers, whereas mammography detected 8, making ultrasound more sensitive (100 vs 57.1%, P=0.04) with a better diagnostic accuracy (0.999 vs 0.766, P=0.01). There was no difference between mammography and ultrasound in specificity (100 vs 99.9%, P=0.51) and positive predictive value (72.7 vs 70.0% P=0.87). To detect one cancer, the costs of ultrasound, mammography, and combined modality were $7876, $45 253, and $21 599, respectively. Conclusions: Ultrasound is superior to mammography for breast cancer screening in high-risk Chinese women.

Mamografia: infraestrutura, cobertura, qualidade e risco do câncer radionduzido em rastreamento oportunístico no estado de Goiás; Mammography: infraestructure, coverage, quality and risk of radioinduced cancer in an opportunistic screening in the state of Goiás

CORRÊA, Rosangela da Silveira
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Ciencias da Saude; Ciencias da Saude Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Ciencias da Saude; Ciencias da Saude
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
37.38%
Among the available methods for the diagnosis and early detection of breast cancer, the most indicated for mass screening is the mammography. To guarantee its effectiveness, this exam needs to be performed using high quality standards and the lowest radiation dose possible. Therefore, the present research aimed to assess the infrastructure and performance of the equipments available at the mammography services in the state of Goiás, regarding coverage, quality, and radiological protection (dose) of patients, in order to provide early detection of breast cancer by an opportunistic screening. A prospective study was carried out, from 2007 to 2010, to observe the diagnostic imaging services which perform mammography, initially for the Brazilian Unified National Health System (SUS) and, in 2010, the services of the private system were included. Data collection was divided into two phases: the first, to collect information on infrastructure and the second, to apply tests in order to evaluate the performance characteristics of equipment and materials used. We calculated the conformity of the assessed items in terms of quality of image and equipment performance and estimated the average dose in glandular tissue and the risk of radioinduced carcinogenesis...

Cost and cost-effectiveness of digital mammography compared with film-screen mammography in Australia

Wang, S.; Merlin, T.; Kreisz, F.; Craft, P.; Hiller, J.
Fonte: Public Health Assoc Australia Inc Publicador: Public Health Assoc Australia Inc
Tipo: Artigo de Revista Científica
Publicado em //2009 EN
Relevância na Pesquisa
37.36%
Objective: A systematic review assessed the relative safety and effectiveness of digital mammography compared with film-screen mammography. This study utilised the evidence from the review to examine the economic value of digital compared with film-screen mammography in Australia. Methods: A cost-comparison analysis between the two technologies was conducted for the overall population for the purposes of breast cancer screening and diagnosis. In addition, a cost-effectiveness analysis was conducted for the screening subgroups where digital mammography was considered to be more accurate than film-screen mammography. Results: Digital mammography in a screening setting is $11 more per examination than film-screen mammography, and $36 or $33 more per examination in a diagnostic setting when either digital radiography or computed radiography is used. In both the screening and diagnostic settings, the throughput of the mammography system had the most significant impact on decreasing the incremental cost/examination/year of digital mammography. Conclusion: Digital mammography is more expensive than film-screen mammography. Whether digital mammography represents good value for money depends on the eventual life-years and quality-adjusted life-years gained from the early cancer diagnosis. Implications: The evidence generated from this study has informed the allocation of public resources for the screening and diagnosis of breast cancer in Australia.; Shuhong Wang...

Quantifying breast cancer over-diagnosis in an organised mammography screening program.

Beckmann, Kerrilyn Rose
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2014
Relevância na Pesquisa
37.21%
Mammography screening is effective in reducing breast cancer (BC) mortality; however there are widespread concerns that it may also lead to over-diagnosis, i.e. the detection of BC that would not have emerged clinically in a woman’s lifetime had she not participated in screening. The extent of over-diagnosis due to mammography is contested, with published estimates varying from 0% to 54%. The principal aim of this research is to quantify the level of over-diagnosis of BC associated with population-based mammography screening in South Australia (SA). The following questions are addressed: (1) Have BC incidence rates increased following the introduction of screening in SA and is the increase greater than expected based on projections of pre-screening trends?, (2) Has the prevalence of key breast cancer risk factors also increased?, (3) To what extent does hormone replacement therapy (HRT) use affect breast cancer risk and screening outcomes?, (4) Are there any differences in the underlying risk of BC among screening participants and non-participants?, and the central question (5) What is the level of over-diagnosis due to organised mammography screening in SA? Questions 2-4 relate to the potential for estimates of over-diagnosis to be confounded by risk factor differences/temporal changes. A review of previous studies of over-diagnosis due to mammography screening is included...

Die Ein-Ebenen-Mammographie in Kombination mit der Mamma-Sonographie versus Zwei-Ebenen-Mammographie zur Untersuchung der weiblichen Brust; One-view mammography combined with ultrasound-mammography versus two-view mammography for the examination of the female breast. New concept for early detection of breast cancer

Weining, Coscina
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: Dissertação
DE_DE
Relevância na Pesquisa
37.29%
Die Mammographie in zwei Ebenen ist zur Zeit die einzige bildgebende Methode, die für ein Mamma-Screening eingesetzt wird. Sie hat aber differentialdiagnostische Schwächen v.a. in dichtem Brustgewebe und bei nicht verkalkenden Tumoren. Ziel der Arbeit war es nachzuweisen, dass die Ein-Ebenen-Mammographie (EEMG) in Kombination mit Sonographie (USMG) und klinischer Untersuchung (TB) als Screeningmethode eine gleich- oder höherwertige Untersuchungsform gegenüber der alleinigen Zwei-Ebenen-Mammographie (ZEMG) ist. Material und Methode: Es wurden 3743 Patientinnen untersucht, die im Institut für Mammadiagnostik in Esslingen im Zeitraum von 1993-2003 noch eine ZEMG mit ergänzender USMG erhielten und damit nach der Definition zu einem kurativen Patientenkollektiv gehören. In die Arbeit gingen ausschließlich Patientinnen ein, deren Befund operiert und histologisch gesichert wurde. Alle Patientinnen wurden vom gleichen Arzt untersucht. Unter Verwendung dieser Kautelen fanden sich 343 Patientinnen, von denen 334 mal eine maligne Diagnose und 9 mal eine benigne Diagnose operativ gesichert wurde. Diese Patientinnen wurden in fünf Altersgruppen eingeteilt. Für diese Altersgruppen wurden der positive prädiktive Wert (PPV), der negative prädiktive Wert (NPV)...

Bildqualität in der digitalen Mammographie: Phantomstudie zum Vergleich von Systemen auf der Basis von amorphem Selen und CäsiumIodid mit Siliziumdetektor; Image quality in digital mammography: Phantom study for comparison of systems based on amorphous selenium and Caesium Iodide with amorphous silicon detectors

Eßlinger, Martin
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: Dissertação
DE_DE
Relevância na Pesquisa
37.27%
Das Mammakarzinom ist in den westlichen Industrieländern der häufigste maligne Tumor der Frau. Das Lebenszeitrisiko liegt bei ungefähr 10 % mit weltweit steigender Tendenz. Dabei ist eine frühe Diagnosenstellung zur Reduktion der Mortalität und Verbesserung der Prognose ausschlaggebend. In den letzten Jahren konnten große Studien zeigen, dass die konventionelle Mammographie mit einer Sensitivität von 72,4 % und einer Spezifität von 97,3 % bisher das beste Verfahren für die Brustkrebsfrüherkennung darstellt. Auf der anderen Seite sind 10 - 20 % aller palpablen Mammakarzinome in der konventionellen Mammographie nicht sichtbar. Um Brustkrebs noch früher und sicherer diagnostizieren zu können, werden seit einigen Jahren digitale Mammographiesysteme entwickelt. Diese besitzen trotz ihrer geringeren maximalen Ortsauflösung im Vergleich zur konventionellen Film-Folien-Mammographie eine höhere effektive Quantenausbeute und ein besseres Signal-zu-Rausch- Verhältnis. In dieser Arbeit wurde eine neue digitale Vollfeldmammographieeinheit auf der Basis von amorphem Selen mit einem mit Cäsium aktivierten Jodid arbeitenden, bereits von der FDA zugelassenen, Gerät und mit einem konventionellen Mammographiesystem verglichen. Ein besonderes Augenmerk galt dabei dem möglichen Dosiseinsparungspotenzial durch Verwendung neuer Detektoren...

Knowledge, attitude and practice of mammography among women users of public health services

Marinho,Luiz Alberto Barcelos; Cecatti,José Guilherme; Osis,Maria José Duarte; Gurgel,Maria Salete Costa
Fonte: Faculdade de Saúde Pública da Universidade de São Paulo Publicador: Faculdade de Saúde Pública da Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2008 EN
Relevância na Pesquisa
37.21%
OBJECTIVE: To evaluate knowledge, attitude and practice related to mammography among women users of local health services, identifying barriers to its performance. METHODS: A total of 663 women were interviewed at 13 local health centers in a city of Southeastern Brazil, in 2001. Interviewees were randomly selected at each center and they were representative from different socioeconomic conditions. The number of interviewees at each center was proportional to monthly mean appointments. For data analysis, answers were described as knowledge, attitude, practice and their respective adequacies and then they were correlated with control variables through the chi-square test. RESULTS: Only 7.4% of the interviewees had adequate knowledge on mammography, while 97.1% of women had an adequate attitude. The same was seen for the practice of mammography that was adequate in 35.7% of the cases. The main barrier to mammography was lack of referral by physicians working at the health center (81.8%). There was an association between adequacy of attitude and five years or more of education and being married. There was also an association between adequacy of mammography practice and being employed and family income up to four minimum wages. CONCLUSIONS: Women users of local health services had no adequate knowledge and practice related to mammography despite having an adequate attitude about this exam.

Impact of the 2009 US Preventive Services Task Force Guidelines on Screening Mammography Rates on Women in Their 40s

Wang, Amy T.; Fan, Jiaquan; Van Houten, Holly K.; Tilburt, Jon C.; Stout, Natasha K.; Montori, Victor M.; Shah, Nilay D.
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
EN_US
Relevância na Pesquisa
37.29%
Background: The 2009 US Preventive Services Task Force breast cancer screening update recommended against routine screening mammography for women aged 40–49; confusion and release of conflicting guidelines followed. We examined the impact of the USPSTF update on population-level screening mammography rates in women ages 40–49. Methods and Findings: We conducted a retrospective, interrupted time-series analysis using a nationally representative, privately-insured population from 1/1/2006-12/31/2011. Women ages 40–64 enrolled for ≥1 month were included. The primary outcome was receipt of screening mammography, identified using administrative claims-based algorithms. Time-series regression models were estimated to determine the effect of the guideline change on screening mammography rates. 5.5 million women ages 40–64 were included. A 1.8 per 1,000 women (p = 0.003) decrease in monthly screening mammography rates for 40–49 year-old women was observed two months following the guideline change; no initial effect was seen for 50–64 year-old women. However, two years following the guideline change, a slight increase in screening mammography rates above expected was observed in both age groups. Conclusions: We detected a modest initial drop in screening mammography rates in women ages 40–49 immediately after the 2009 USPSTF guideline followed by an increase in screening rates. Unfavorable public reactions and release of conflicting statements may have tempered the initial impact. Renewal of the screening debate may have brought mammography to the forefront of women's minds...

Knowledge about mammography and associated factors: population surveys with female adults and elderly

Schneider,Ione Jayce Ceola; Corseuil,Marui Weber; Boing,Antonio Fernando; d'Orsi,Eleonora
Fonte: Associação Brasileira de Saúde Coletiva Publicador: Associação Brasileira de Saúde Coletiva
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2013 EN
Relevância na Pesquisa
37.21%
The purpose of this paper is to describe the knowledge about mammography and to identify associated factors in female adults and elderly. Data were obtained from two population surveys, one with female adults and another with elderly women from Florianópolis (SC) in 2009 - 2010. A descriptive analysis of the variables was carried out, the appropriate mean of responses about mammography was estimated and crude and adjusted Poisson regression was conducted to identify associated factors. Among adults, 23.1% answered all of the questions appropriately and the appropriate average responses was 7.2 (95%CI 7.1 - 7.3) in a total of 9. In the adjusted model, older age, higher education and income were associated with knowledge about mammography. For the elderly, 15.3% answered all questions appropriately and the average of appropriate responses was 6.4 (95%CI 5.2 - 6.5) and the factors associated with knowledge about mammography in the adjusted model were younger age groups, increased education and income, and identification of mammography as the main diagnostic method for breast cancer. Information about mammography can neither be transmitted in a clear way nor be easily understood; there are also demographic and socioeconomic differences concerning the knowledge about the exam.

A Biopsychosocial Study of the Mammography Pain Experiences of Breast Cancer Survivors

Scipio, Cindy Dawn
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Dissertação
Publicado em //2009
Relevância na Pesquisa
37.31%

Based on a biopsychosocial model of mammography pain, the current study assessed if specific biological and psychosocial factors were associated with higher reported mammography pain in early stage breast cancer survivors. One hundred and twenty-seven women completed questionnaires assessing demographic information, cancer treatment history, ongoing breast pain, mammography-related anxiety, and social support immediately prior to receiving a mammogram. They then completed questionnaires assessing mammography pain and mammography-related pain catastrophizing immediately following the mammogram. Using path modeling and mediation analyses, relations among these variables were examined. Results revealed that mammography-related pain catastrophizing was related to higher mammography pain directly, while ongoing breast pain, lower social support quantity, and lower perceived quality of social support related to higher mammography pain indirectly through mammography-related pain catastrophizing. Moderated mediation analyses found that the mediation effects of mammography-related pain catastrophizing were significantly different at varying levels of perceived quality of social support, with more pronounced negative effects for those with higher quality support than those with lower quality support. The theoretical...

Estimativas da cobertura de mamografia segundo inquéritos de saúde no Brasil; Estimaciones de la cobertura de mamografía según encuestas de salud en Brasil; Estimates of mammography coverage according to health surveys in Brazil

Viacava, Francisco; Souza-Junior, Paulo Roberto Borges de; Moreira, Rodrigo da Silva
Fonte: Universidade de São Paulo. Faculdade de Saúde Pública Publicador: Universidade de São Paulo. Faculdade de Saúde Pública
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; Formato: application/pdf; application/pdf
Publicado em 01/11/2009 POR; ENG
Relevância na Pesquisa
37.21%
OBJETIVO: Inquéritos populacionais constituem ferramenta fundamental para monitorar a cobertura de mamografia e os fatores associados à sua realização. Em inquéritos baseados na população residente em domicílios com telefone as estimativas tendem a ser superestimadas. O estudo teve por objetivo estimar a cobertura de mamografia com base em pesquisas de base populacional. MÉTODOS: A partir das coberturas por mamografia em mulheres de 50 a 69 anos, com e sem telefone fixo, observadas na Pesquisa Nacional por Amostra de Domicílios (PNAD) 2003, calcularam-se as razões entre elas e o respectivo coeficiente de variação. A razão de cobertura foi multiplicada pela cobertura estimada pelo sistema de Vigilância de Fatores de Risco e Proteção para Doenças Crônicas por Inquérito Telefônico (VIGITEL), permitindo estimar a cobertura entre mulheres sem telefone em 2007. Essas estimativas foram aplicadas à população de mulheres, com e sem telefone, obtidas a partir da PNAD 2006, obtendo-se assim as estimativas finais para as capitais. RESULTADOS: Em 2007, para o conjunto das capitais, estimou-se a cobertura de mamografia em aproximadamente 70%, variando de 41,2% em Porto Velho (RO) a 82,2% em Florianópolis (SC). Em 17 municípios a cobertura foi maior que 60%; em oito...

Conhecimento, atitude e prática da mamografia entre usuárias do serviço público de saúde; Knowledge, attitude and practice of mammography among women users of public health services

Marinho, Luiz Alberto Barcelos; Cecatti, José Guilherme; Osis, Maria José Duarte; Gurgel, Maria Salete Costa
Fonte: Universidade de São Paulo. Faculdade de Saúde Pública Publicador: Universidade de São Paulo. Faculdade de Saúde Pública
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; Formato: application/pdf
Publicado em 01/04/2008 ENG
Relevância na Pesquisa
37.21%
OBJETIVO: Avaliar o conhecimento, a atitude e a prática do exame de mamografia entre as mulheres usuárias do serviço médico municipal, identificando as barreiras para seu acesso à realização do procedimento. MÉTODOS: Foram entrevistadas 663 mulheres de 13 centros de saúde municipais de Campinas, SP, em 2001. As entrevistadas foram incluídas de forma aleatória, representando diferentes estratos sociais. O número de entrevistas em cada centro de saúde foi proporcional ao número médio mensal de mulheres atendidas. As respostas foram descritas quanto ao conhecimento, atitude e prática e suas respectivas adequações. A adequação foi correlacionada com variáveis de controle utilizando o teste qui-quadrado. RESULTADOS: Apenas 7,4% das entrevistadas tinham conhecimento adequado sobre o exame de mamografia, embora a atitude frente a este procedimento tenha sido adequada em 97,1% das mulheres e a prática adequada em 35,7% das entrevistadas. A principal barreira para a realização da mamografia foi a não solicitação por parte dos médicos dos centros de saúde (81,8%). A adequação da atitude esteve relacionada à escolaridade igual ou superior a cinco anos e ser casada. A prática adequada da mamografia associou-se com o trabalho fora de casa e renda familiar igual ou superior a cinco salários mínimos. CONCLUSÕES: O conhecimento e a prática da mamografia entre as usuárias do serviço médico municipal foi inadequada...

Knowledge about mammography and associated factors: population surveys with female adults and elderly

Schneider,Ione Jayce Ceola; Corseuil,Marui Weber; Boing,Antonio Fernando; d'Orsi,Eleonora
Fonte: Associação Brasileira de Pós -Graduação em Saúde Coletiva Publicador: Associação Brasileira de Pós -Graduação em Saúde Coletiva
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2013 EN
Relevância na Pesquisa
37.21%
The purpose of this paper is to describe the knowledge about mammography and to identify associated factors in female adults and elderly. Data were obtained from two population surveys, one with female adults and another with elderly women from Florianópolis (SC) in 2009 - 2010. A descriptive analysis of the variables was carried out, the appropriate mean of responses about mammography was estimated and crude and adjusted Poisson regression was conducted to identify associated factors. Among adults, 23.1% answered all of the questions appropriately and the appropriate average responses was 7.2 (95%CI 7.1 - 7.3) in a total of 9. In the adjusted model, older age, higher education and income were associated with knowledge about mammography. For the elderly, 15.3% answered all questions appropriately and the average of appropriate responses was 6.4 (95%CI 5.2 - 6.5) and the factors associated with knowledge about mammography in the adjusted model were younger age groups, increased education and income, and identification of mammography as the main diagnostic method for breast cancer. Information about mammography can neither be transmitted in a clear way nor be easily understood; there are also demographic and socioeconomic differences concerning the knowledge about the exam.

Knowledge, attitude and practice of mammography among women users of public health services

Marinho,Luiz Alberto Barcelos; Cecatti,José Guilherme; Osis,Maria José Duarte; Gurgel,Maria Salete Costa
Fonte: Faculdade de Saúde Pública da Universidade de São Paulo Publicador: Faculdade de Saúde Pública da Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2008 EN
Relevância na Pesquisa
37.21%
OBJECTIVE: To evaluate knowledge, attitude and practice related to mammography among women users of local health services, identifying barriers to its performance. METHODS: A total of 663 women were interviewed at 13 local health centers in a city of Southeastern Brazil, in 2001. Interviewees were randomly selected at each center and they were representative from different socioeconomic conditions. The number of interviewees at each center was proportional to monthly mean appointments. For data analysis, answers were described as knowledge, attitude, practice and their respective adequacies and then they were correlated with control variables through the chi-square test. RESULTS: Only 7.4% of the interviewees had adequate knowledge on mammography, while 97.1% of women had an adequate attitude. The same was seen for the practice of mammography that was adequate in 35.7% of the cases. The main barrier to mammography was lack of referral by physicians working at the health center (81.8%). There was an association between adequacy of attitude and five years or more of education and being married. There was also an association between adequacy of mammography practice and being employed and family income up to four minimum wages. CONCLUSIONS: Women users of local health services had no adequate knowledge and practice related to mammography despite having an adequate attitude about this exam.

Screening mammography: a successful public health initiative

Feig,Stephen A.
Fonte: Organización Panamericana de la Salud Publicador: Organización Panamericana de la Salud
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2006 EN
Relevância na Pesquisa
37.33%
This paper reviews the ability of screening mammography to reduce breast cancer death rates, and it discusses methods that maximize benefits and reduce false-positive interpretations in a screening program. The review covers published results from screening mammography programs conducted in Europe and North America, along with quality assurance measures designed to ensure that similar or even better outcomes will be shared by other populations of screened women. Randomized trials in Europe and the United States of America have shown the benefit from screening women ages 40-70 years. Encouraged by the success of these trials, many Scandinavian countries now offer screening mammography to their populations as a public health service. These service screening programs have reduced breast cancer deaths as much as 63% among women who were screened. In the United States, where 61.5% of women age 40 and older report having had a mammogram in the preceding year, death rates from breast cancer have been falling despite an increasing incidence of the disease. The technical quality of mammography in the United States has improved as a result of advances in mammography equipment, including the film-screen systems. Also contributing to the improvement has been the implementation of federally mandated quality control testing at each mammography facility...