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Specialist Advice — 13 minutes

What is the preferred test for breast cancer?

Dr François Plante
Dr François Plante
Head Radiologist, Breast Imaging Section + Medical Director, Imagix Boucherville

To date, the mammogram is the only scientifically recognized test that can diagnose breast cancer early. However, other methods can also be combined with mammography to confirm a diagnosis, such as ultrasound or magnetic resonance imaging.

Over the past twenty years, mammography has reduced the mortality rate from breast neoplasia (i.e., malignant tumours) by nearly 30%, which is far from negligible. It is a first-rate test for breast health.

What is a mammogram?

A mammogram is the preferred test for visualizing the internal structures of the breast and detecting small lesions (e.g., cysts, calcifications and tumours) that may not be detected by palpation. This technique allows the early detection of breast cancer or clarification of clinical questions.

Why have a mammogram?

The mammogram is recognized for its effectiveness in detecting breast cancer as early as possible, even when the patient has no symptoms. Knowing that breast cancer is the most common form of cancer in Canadian women, Quebec’s ministry of health and social services launched the Québec Breast Cancer Screening Program in May 1998. This program offers women between the ages of 50 and 69 the opportunity to have a screening mammogram every two years, free of charge.

Mammogram procedure

This test involves taking at least two X-rays of each breast using compression for 10 to 15 seconds. A mammogram can be performed in a sitting or standing position to maximize the patient’s comfort. It is a simple radiological examination that poses no risk of trauma or injury, but can sometimes be slightly uncomfortable for the patient.

What is breast ultrasound?

A breast ultrasound is an imaging test without ionizing radiation. It is used to screen and diagnose most breast conditions in women under the age of 40. It can also be prescribed as a complementary test to a mammogram in order to better understand the images that were previously produced.

Breast MRI may be necessary to dispel doubt

Magnetic resonance imaging of the breast, or breast MRI, is a test generally used for diagnostic purposes. It is a second-line test after a mammogram and often after an ultrasound. This method of investigation is used to solve a diagnostic problem that could not be solved with the first two techniques.

Breast MRI used in specific cases

Breast MRI screening is mainly intended for two groups of women. The first group is composed of women with a genetic predisposition to breast cancer and who therefore have a higher risk of developing it during their lifetime. Women in the second group have a first-degree family history of breast cancer. These are usually women whose mother or sister has had the disease.

Because a close relative carries the breast cancer gene, these women are considered to be at greater risk of developing breast cancer themselves. A screening MRI can be used in these situations to confirm or refute a diagnosis.

Breast MRI is the preferred test for women with breast implants, as it is the only effective technique for diagnosing an implant rupture.

For professional support, we’re here for you.

We provide services that can help your doctor diagnose breast cancer and determine the appropriate treatment.

Do you have a medical prescription for one of these tests? Please book an appointment online or call customer service for Biron Health Group at 1-833-590-2713.

Dr François Plante
Dr François Plante
Head Radiologist, Breast Imaging Section + Medical Director, Imagix Boucherville