TOLL FREE:
1-866-611-2665
Breast cancer screening saves lives. According to the Canadian Cancer Society, the death rate from breast cancer has been declining since the 1980s. This is thanks to earlier detection from regular mammogram screening and improvements in breast cancer treatment.
Mammography is a type of X-ray exam that takes an image of the inside of the breasts – called a mammogram. It’s the best way to detect breast cancer in its early, most treatable stage because it provides a detailed look at the internal structure of breast tissue in both men and women and can reveal changes that are too small to feel. A mammogram can be used for diagnostic concerns and for screening purposes.
Diagnostic mammography is performed if there are symptoms of a breast abnormality, while screening mammography occurs when there is no obvious breast abnormality and no signs of breast cancer. Having regular screening mammograms makes it easier to compare the images year after year and to see changes within the breast that might indicate cancer.
Screening mammograms are mostly performed on women; men generally receive a diagnostic mammogram if imaging is needed to investigate for any new concerns. Some men who are considered high risk because of a genetic predisposition are encouraged to undergo regular screening. Many women start having regular screening mammograms every year at about age 40.
Mayfair Diagnostics recommends screening mammography every year from age 40 to 49, then every two years between age 50 and 75, if there are no risks factors that would necessitate a shorter interval. After age 75, screening frequency will depend on a number of factors, including your medical history.
Across Canada the recommended age to start screening and the recommended screening intervals differ by province. Most provincial and federal breast screening guidelines are based on an evaluation of whether the benefits of regular screening mammograms outweigh the potential harms.
Mayfair’s recommendations for breast screening are aligned with the Canadian Association of Radiologists.
When deciding between the benefit of early detection of breast cancer and the potential harms associated with breast screening there are two main harms that are often considered. The first is radiation exposure and the second is overdiagnosis.
Many women are concerned about the cumulative effects from radiation exposure during a mammogram. However, mammograms require a very small dose of radiation – the same amount of radiation as every person receives from the earth’s natural background radiation over six months. Since the risk of harm from this amount of radiation exposure is low compared to the prognosis when breast cancer is detected early, many women decide the benefit outweighs the risk.
Overdiagnosis includes unnecessary treatment of cancer that would not have caused harm in a woman’s lifetime, as well as the physical and psychological consequences of false positives. Current research puts the risk of overdiagnosis at 10 percent, compared to research that shows not participating in screening mammography leads to a 60 percent higher chance of dying from breast cancer.
Early detection is the primary reason for screening. When breast cancer is detected through imaging and before it is clinically apparent (e.g., palpable lump), it’s more likely to be small and more easily treated. Small cancers detected early can be removed and breast conserving surgery can be performed. Additionally, small cancers often do not require chemotherapy or radiation therapy.
Factors that can increase the risk of developing breast cancer include women with a personal history of, or one or more first-degree relatives (parent, sibling, child) diagnosed with, breast or ovarian cancer; women who are carriers of gene mutations, such as BRCA1 or BRCA2, or have a first-degree relative with these gene mutations; and women who have had chest radiation therapy before age 30 or within the past eight years.
Women with these risk factors are considered high risk and may be encouraged to start screening earlier and more frequently.
Increasingly, breast density is being recognized as a significant risk factor. Dense breast tissue refers to how it appears on the mammogram based on the mix of fatty and fibrous tissue. Women with very dense breasts may require a more personalized screening approach than what is recommended for the general population. This may include both mammography and ultrasound exams.
While the recommendations differ and can be confusing, the ultimate decision rests with women. Understanding the risks and benefits of regular mammogram screening and speaking with your doctor about your medical history, is an important first step to decide what’s right for you.
Mayfair Diagnostics has 14 locations which offer mammography exams, and except for our Coventry Hills all of them use the Senographe Pristina mammography system – which helps provide a more comfortable mammogram. Visit our breast imaging page for more information.
REFERENCES
Alberta Health Services (2021) “Breast Screening.” www.screeningforlife.ca. Accessed October 1, 2022.
Canadian Association of Radiologists (2016) “CAR Practice Guidelines and Technical Standards for Breast Imaging and Intervention.” www.car.ca. Accessed October 1, 2022.
Canadian Cancer Society (2018) “Breast cancer statistics.” www.cancer.ca. Accessed October 1, 2022.
Coldman, A., et al (2014) “Pan-Canadian Study of Mammography Screening and Mortality from Breast Cancer.” Journal of the National Cancer Institute. November 2014, 106 (11).
Monticciolo, Dr. et al. (2018) “Current Issues in the Overdiagnosis and Overtreatment of Breast Cancer.” American Journal of Roentgenology. February 2018, 210 (2). Accessed October 1, 2022.
Tabar, L., et al. (2019) “The incidence of fatal breast cancer measures the increased effectiveness of therapy in women participating in mammography screening.” Cancer. Accessed October 1, 2022.
Our Refresh newsletter delivers the latest medical news, expert insights, and practical tips straight to your inbox, empowering you with knowledge to enhance patient care and stay informed.
By subscribing to our newsletter you understand and accept that we may share your information with vendors or other third parties who perform services on our behalf. The personal information collected may be stored, processed, and transferred to a country or region outside of Quebec.
Please read our privacy policy for more details.
At the heart of everything we do is a belief that every image tells a story—and every story deserves care.
At Mayfair Diagnostics, we provide state-of-the-art medical imaging that helps patients and physicians get the clarity they need to make informed decisions about health. From routine check-ups to complex diagnoses, our role is to deliver answers with compassion and accuracy.
We offer a full spectrum of imaging services, including:
MRI, CT, and X-Ray for advanced diagnostic insight
Ultrasound and Mammography for preventative and women’s health
Nuclear Medicine, Bone Density, and Cardiac Imaging for specialized care
Pain Management and Interventional Procedures to improve quality of life
But our work extends beyond exams and equipment. As the largest teleradiology provider in Western Canada, we connect urban, rural, and remote communities with expert radiology services—ensuring access to care when and where it’s needed most.
We also partner with local organizations, sports teams, and community groups to keep people healthy and active. From professional athletes to families booking their first screening, our commitment is the same: timely results, advanced technology, and compassionate care.
To improve lives with clarity, compassion, and care—one focused image at a time.
But numbers only tell part of the story. What truly defines us is our culture of compassion. We’re a team of caregivers, innovators, and problem-solvers who share a commitment to excellence. Whether supporting frontline care, developing new technology workflows, or guiding a patient through their appointment, we approach our work with empathy and integrity.
At Mayfair, you’re not just part of a company—you’re part of a community. Together, we’re shaping the future of health care, making advanced imaging accessible, and creating a workplace where people feel valued, supported, and inspired to grow.
WHO WE ARE. WHAT WE DO. Why we’re more than a workplace
At Mayfair Diagnostics, we’re caregivers, nurturers, creators and thought leaders—deeply rooted in a passion to help people. We deliver meaningful work, compassionate care, and an environment where every team member can thrive.
Key Points:
Founded on over a century of excellence in medical imaging.
Owned and operated by 50+ radiologists, supported by 400–640+ employees across clinical, technical, administrative, and support roles.
Operating 17 locations across Alberta, Saskatchewan, and beyond (14 in Calgary, plus Cochrane, Regina, Saskatoon).
Serving 600,000–700,000 patients annually, delivering over 90,000 radiological interpretations—the largest teleradiology provider in Western Canada.
Vision & Mission:
Vision: “A world in which every person has clarity about their health.”
Mission: “To improve people’s lives, one focused image and one caring, compassionate human touch at a time.”
