Screening mammography: increasing the effort toward breast cancer detection

Mammography is the only modality with the potential for detecting a breast cancer while it is non-palpable and at a stage of high curability. Early detection of breast cancer is important because survival is directly related to tumor size and lymph node status, and prognosis is best for small lesions without axillary node metastasis. Many studies have indicated that screening mammography is tremendously underused. This article focuses on the effectiveness of mammography and the importance of detecting a breast cancer at an early stage. Health care providers have a responsibility to inform their clients about the benefits of mammography. In addition, women need to be taught breast self-examination and undergo regular clinical breast examinations by a health care professional. The American Cancer Society guidelines for screening breast cancer are given.     

Screening Mammography and Breast Cancer Reduction: Examining the Evidence

Better treatment and awareness may explain much of the decline in breast cancer deaths in recent years, not mammography. For women without a family history of breast cancer, the risks of screening mammography may outweigh the benefits, particularly for women younger than age 50. Mammography carries the risk of overdiagnosis of tumors that would not have caused death. Nurse practitioners are advised to educate their patients on mammography risks and benefits while increasing their emphasis on the clinical symptoms of breast cancer and ways to reduce risk, including weight control, decreased alcohol use, and decreased use of menopausal estrogen.     

Breast imaging. A practical look at its capabilities and its limitations.

The film-screen technique is evolving as the standard for mammography. Sonography is the only other method that currently has a defined role in breast imaging. Mammography should be performed at facilities that have received American College of Radiology accreditation or its equivalent, because technical quality assurance is an important part of mammographic practice. Interpretive quality may be assured by outcome audits performed by mammography facilities. Primary care physicians are best suited to encouraging eligible women to undergo screening studies and should consider these recommendations: Refer patients for screening mammography to accredited facilities according to established guidelines. Educate patients about the need for regular screening. Provide annual breast physical examination. Refresh your knowledge on breast health and the techniques of physical examination if necessary. Teach patients breast self-examination techniques. Demand low-cost, high-quality screening mammography; be aware of local variability of charges and quality.     

Breast imaging: mammography and ultrasonography

Mammography is the primary imaging for breast cancer screening and diagnosis. Recent improvements in mammography are related to programs established by professional societies and government agencies to bring standardization and quality assurance in the technical improvements that have extended its contributions to breast imaging. This article addresses the current roles and limitations of mammography and ultrasonography in the detection and diagnosis of breast cancer.     

Supplemental Cancer Screening for Women With Dense Breasts: Guidance for Health Care Professionals

Mammography is the standard for breast cancer screening. The sensitivity of mammography in identifying breast cancer, however, is reduced for women with dense breasts. Thirty-eight states have passed laws requiring that all women be notified of breast tissue density results in their mammogram report. The notification includes a statement that differs by state, encouraging women to discuss supplemental screening options with their health care professionals (HCPs). Several supplemental screening tests are available for women with dense breast tissue, but no established guidelines exist to direct HCPs in their recommendation of preferred supplemental screening test. Tailored screening, which takes into consideration the patient’s mammographic breast density and lifetime breast cancer risk, can guide breast cancer screening strategies that are more comprehensive. This review describes the benefits and limitations of the various available supplemental screening tests to guide HCPs and patients in choosing the appropriate breast cancer screening.     

Imaging of the breast: techniques and results

Procedures for imaging of the breast have increased in number substantially in the past 30 years. Mammography, currently the most important breast imaging technique, was introduced at the Mayo Clinic in 1961. In 1988, more than 36,000 mammographic procedures were done. Breast ultrasonography is also a valuable examination, particularly for determining whether mass lesions are cystic or solid. The use of mammography for screening is increasing. Screening mammography allows the detection of breast cancer before it is palpable and while it is still in a stage known as minimal breast cancer. Lesions metastatic to axillary lymph nodes are less common in women with nonpalpable breast cancers than in women with palpable lesions. Nondiagnostic mammography should not delay the biopsy of a mass that is suspicious on physical examination. A special breast imaging center for performance of screening studies and evaluation of breast problems has been established at the Mayo Clinic.     

乳腺疾病的钼靶摄影诊断价值(附40例分析)

目的提高乳腺钼靶摄影对早期乳腺癌的诊断水平。方法40例全部为女性病员,年龄27—70岁,平均45、4岁,均行乳腺钼靶X线摄影并经手术病理证实。结果术前乳腺钼靶摄影诊断乳腺癌15例,手术病理证实乳腺癌14例和乳腺良性肿瘤1例。术前乳腺钼靶摄影诊断良性肿瘤8例,术后病理报告纤维腺瘤6例、硬化性乳腺病1例及乳腺癌1例。术前乳腺钼靶摄影诊断乳腺小叶增生15例及阴性2例,术后病理证实小叶增生15例、潴留囊肿1例及乳腺癌1例。结论乳腺钼靶X线摄影数字成像是早期发现乳腺癌的首选检查方法,也可作为体检和普查使用,     

Breast cancer screening. Benefits, risks, and current controversies

Mammography is the best tool available for screening for breast cancer. Although the data supporting clinical breast examination are not as strong, this procedure continues to be widely used in the United States. To maximize accuracy of results, women who undergo screening during their premenopausal years should attempt to schedule mammography during the follicular phase of the menstrual cycle. All women should be educated about the benefits and the harms of screening, including the risk of being called back for further testing.     

Breast arterial calcifications as a cardiovascular risk marker in women

Cardiovascular disease and breast cancer are the two main causes of mortality in women. Mammography as a screening test for breast cancer is recommended for all women from the age of 40 to 50 years. Mammographically detected breast arterial calcifications are currently considered an incidental finding without clinical importance, since they are not associated with an increased risk of breast cancer. However, recent studies have shown that breast arterial calcifications on mammograms have been associated with cardiovascular risk factors and atherosclerotic cardiovascular disease. These results suggest that breast arterial calcifications, detected during routine mammography, are a noteworthy finding that could be valuable in identifying asymptomatic women at increased cardiovascular risk.     

Breast arterial calcifications as a cardiovascular risk marker in women

Cardiovascular disease and breast cancer are the two main causes of mortality in women. Mammography as a screening test for breast cancer is recommended for all women from the age of 40 to 50 years. Mammographically detected breast arterial calcifications are currently considered an incidental finding without clinical importance, since they are not associated with an increased risk of breast cancer. However, recent studies have shown that breast arterial calcifications on mammograms have been associated with cardiovascular risk factors and atherosclerotic cardiovascular disease. These results suggest that breast arterial calcifications, detected during routine mammography, are a noteworthy finding that could be valuable in identifying asymptomatic women at increased cardiovascular risk.     

自动乳腺容积超声检查的临床应用进展

乳腺癌是女性常见的恶性肿瘤,钼靶和手持超声是诊断乳腺疾病的常用手段,而自动乳腺容积超声检查是一种新的乳腺超声自动扫描成像技术,一定程度上可以弥补钼靶与手持超声的不足,本文就自动乳腺容积超声在乳腺疾病应用价值上进行综述。     

磁共振成像在乳腺癌影像学筛查中的应用:2010ACR与SBI乳腺影像学筛查实践指南解读

影像学能够在临床出现可触及肿块之前早期发现乳腺癌已经成为不争的事实.在多种影像学检查中,乳腺X线摄影是惟一被偱证研究证实的能够早期发现乳腺癌而降低死亡率的影像学方法,但由于存在局限性,因而近年来大量临床研究致力于评估乳腺磁共振成像及乳腺超声在乳腺癌筛查中应用的可行性和效能.为进一步提高乳腺癌早期检出率,乳腺癌筛查方案日...     

Implementation of service screening with mammography in Sweden: from pilot study to nationwide programme

Establishment of mammography screening in Sweden has progressed logically from pilot study through clinical trials to service screening. Screening with mammography for early detection of breast cancer has been provided by all Sweden's 26 county councils since 1997. It took 23 years from the initial pilot study through clinical trials to the establishment of mammography service screening throughout Sweden. In the screening rounds completed by 1995-96, and provided by all but one county council, 1040000 women participated, corresponding to 81% of those invited. The national average recall rate was 2.2%, and consequently 23000 women were recalled for additional investigations. Eleven county councils invited women aged 40-74, six invited women aged 50-69, the remaining eight invited women between both these age intervals. Mammography outside screening programmes-clinical mammography-is available throughout Sweden. About 100000 women a year were referred for clinical mammography and about 50% of these were either younger or older than those invited for screening. A negative relation between the use of clinical mammography and participation in the screening programmes was noticed.     

Underutilization of mammography in older breast cancer survivors

BACKGROUND: Annual mammography is recommended for all breast cancer survivors. OBJECTIVES: To elucidate mammography use among older survivors of breast cancer and to explore determinants of such use. RESEARCH DESIGN: Retrospective cohort study using data from the Surveillance, Epidemiology, and End Results (SEER) registry linked to Medicare claims. SUBJECTS: A cohort of 3885 breast cancer survivors aged > or =65 years diagnosed with early-stage breast cancer in the United States in 1991. MEASURES: Medicare mammogram claims during the 2-year period following initial breast cancer treatment. RESULTS: Overall, 62% of the cohort underwent annual mammography, 23% underwent mammography in 1 of 2 years, and 15% had no mammography claim in the 2 years evaluated. Twenty-two percent of the women who underwent breast-conserving surgery (BCS) without radiotherapy had no mammogram in the 2-year period evaluated, compared with 17% of those who underwent mastectomy and 4% of those who underwent BCS with radiotherapy. In multivariate analyses controlling for age, cancer stage, and other patient factors, the use of annual mammography was significantly lower among women treated with mastectomy or BCS without radiotherapy than among women treated with BCS with radiotherapy. CONCLUSIONS: Mammography is underused in the follow-up care of older breast cancer survivors. Underuse is of particular concern in women treated with BCS without radiotherapy because of the high risk of local disease recurrence. It is unknown whether poorer follow-up care contributes to the previously described lower rate of long-term survival among women who received this therapy.     

Mammography and early breast cancer detection

Screening mammography has been shown to reduce breast cancer mortality. Both film-screen mammography and xeromammography are highly sensitive and specific. Mammography accreditation programs assure physicians and patients that a facility provides mammography of the highest quality, using the lowest possible radiation dose. Mammographic signs of early cancer include a small mass, calcifications, architectural distortion and a neodensity. Dense tissue may result in a false-negative examination even when a cancer is palpable, with adverse effects if biopsy is delayed.     

动态磁共振成像在乳腺癌保乳术中的术前评估作用

[目的]评价动态增强磁共振成像（MRI）在乳腺癌保乳根治术的术前评估作用.[方法]平均年龄35.8岁的65 例女性乳腺癌患者,术前均行钼靶及MRI检查,对钼靶、MRI评估是否可行保乳手术进行分析,通过病理诊断来评价MRI在评估乳腺癌多中心病灶以及切缘范围上的准确性.[结果]65例患者中,钼靶术前评估认为可保乳术患者64.6%,低于MRI评估的83.1%,且两者相比差异有显著性（P＜0.05）.对癌块切缘判断准确率MRI为80%,显著高于钼靶的53.8%（P＜0.05）.[结论]在中青年女性的I~IIb期乳腺癌保乳术的术前评估方法中,动态增强MRI成像较钼靶更能准确判断有无多中心病灶及肿块切缘范围,更有利于决定是否采取保乳手术和更准确地判断手术切缘.     

Development of the mammography beliefs and attitudes questionnaire for low-health-literacy Mexican-American women

Low-income, low-health-literacy Mexican-American women exhibit poor mammography screening participation and are being diagnosed at later stages of breast cancer than are non-Hispanic white women. No instrument has been available to measure the impact of cultural and psycho-social factors on the intent to seek mammography screening participation in this population. In this article the author describes the development process of the English Mammography Beliefs and Attitudes Questionnaire (MBAQ) and the Spanish Mammography Beliefs and Attitudes Questionnaire (SMBAQ). The Theory of Planned Behavior is the theoretical framework underlying these instruments designed to measure intent to seek mammography screening in low-health-literacy Mexican-American women. The process of developing the MBAQ utilized input from low-health-literacy Mexican-American women and an expert committee. The MBAQ was translated into Spanish and assessed for content validity and reading level. In the discussion, the author explains why the MBAQ and SMBAQ are appropriate tools for use with low-health-literacy Mexican-American women to measure their intentions to seek mammography screening. Limitations of the study and implications for practice and research are presented.     

基于深度学习的X线诊断乳腺癌研究进展

乳腺癌是女性最常见的恶性肿瘤之一。乳腺X线摄影是诊断乳腺癌的重要手段,对早期病灶检出具有重要价值。近年来,深度学习因其高效率、高精度等特点成为医学领域的研究热点。已有研究将深度学习应用于X线诊断乳腺癌领域,证实其可提高诊断准确率、降低漏诊率。本文对深度学习在X线诊断乳腺癌中的研究进展进行综述。