A mammogram is a medical procedure that employs a dedicated mammography x-ray unit to conduct a low-dose x-ray examination of the breast tissue. Mammograms are instrumental in the early detection of breast cancer, often before any visible signs or symptoms of the disease become apparent.
There are two primary types of mammograms available: 2D and 3D mammograms. In the case of a 2D mammogram, it captures breast images in two dimensions, typically taking two pictures of each breast—one from the side and another from above. This method is suitable for patients with larger lumps or non-dense breast tissue.
Conversely, a 3D mammogram, also referred to as digital breast tomosynthesis, involves the capture of a series of images taken from various angles across the breast. These images are then computationally combined to generate a comprehensive 3D representation of the breast. This advanced technique enables healthcare professionals to visualize the breast in greater detail.
3D mammography can offer more precise information regarding early-stage invasive breast cancers compared to 2D mammography alone. It is also particularly valuable for individuals with dense breast tissue or breast implants.
North Shore Radiology utilises the best in class technology of the Hologic Selenia Dimensions 3D mammography system.
Please don’t wear perfume, lotion, or talcum powder on the day of your appointment, as these substances may show up as shadows on your mammogram. Bring your deodorant with you to put it on at the end of the examination.
Wear a two-piece outfit for comfort, so you only need to undress from the waist up. Bring any previous mammogram films with you to be compared with your mammogram.
If you have breast implants, please let us know when you book your appointment, as we will schedule a longer appointment time.
Please remember to bring your request from your doctor for your mammogram, plus any previous mammograms, breast ultrasounds, or other related examinations. Please report to North Shore Radiology & Nuclear Medicine 15 minutes before your appointment time to ensure registration is completed and you are ready for your examination at the scheduled appointment time.
Standard mammography takes approximately 15 minutes, as our radiologist reviews the images. Sometimes additional views are requested by the radiologist, which takes longer.
The mammography will take longer (40 minutes) if you have breast implants, as additional images are required to see the breast tissue. An ultrasound is always booked following a mammogram which will take an additional 30 minutes. You will be advised if the radiologist does not feel that the ultrasound is required.
Firstly, we ask you to complete a questionnaire to obtain relevant information about any family history of breast cancer, previous mammograms, or breast surgery. Then we will provide you with a gown to change into.
Your breasts will be placed, one at a time, between two special plates and compressed (pressed down) firmly for a few seconds whilst the X-rays are taken. Two views of each breast are performed as a minimum.
The compression may be uncomfortable or perhaps painful, but it only lasts a few seconds. Without compression, the X-rays would be blurry, making it difficult to see any abnormality.
Compression also reduces the amount of radiation required for the mammogram. Ideally, it is best to have a mammogram one week after the start of your menstrual cycle, as your breasts will not be as tender at this time.
Following your mammogram and any other relevant examinations, the radiologist will prepare a report. The results will be sent directly to your referrer and any other doctors you have indicated to get a copy at the time of registration.
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