Mammography x-rays use low-level radiation to produce black and white images of breast tissue density, revealing possible tumors. The machine consists of an x-ray tube and a compression paddle. The procedure takes about 30 minutes and is reviewed by a radiologist.
A mammography x-ray uses low-level radiation to produce images of the internal structure of the breast and reveal possible tumors. The black and white images created are based on the density of the internal structures captured. A mammography x-ray machine consists of an x-ray tube and a squeeze paddle to squeeze the breast evenly onto the tape plate under the breast. Mammography radiographs are performed by x-ray technicians, take about 30 minutes, and then the images are reviewed by a radiologist.
During a mammogram, low-radiation X-rays are aimed precisely at the tissue of a breast. These X-rays are absorbed differently by the various types of tissue in or near the breast. The shoulder bone will absorb the most radiation and appear the densest or whitest on the recorded image, while muscle, fat and any existing tumors will be less dense or grayish. A black and white image of what is inside the breast results from the different densities and is recorded on x-ray film or as a digital image. All images will be carefully reviewed by a radiologist or physician trained in x-ray evaluation and a summary will be sent to the patient’s referring physician.
The mammography x-ray machine looks like a tower. At the top pointing down is the X-ray tube where X-rays are generated and focused on the breast. Below the X-ray tube is a vertically adjustable compression paddle. Below the headstock is another vertically adjustable plate which records the image. The breasts are rested one at a time on the tape plate and the compression paddle is lowered to squeeze and enlarge the breast tissue.
A mammography x-ray is typically done by an x-ray technician and takes about 30 minutes to image both breasts. The patient will be asked to remove her shirt and bra, put on a robe, stand directly in front of the mammography x-ray machine, place one breast in the machine, and remain as still as possible while the breast is compressed for the image. Breast compression is necessary to even out the thickness of the breast to provide the best image possible, allow for lower doses of X-rays, and to help keep the tissue still. After the exam, the technician typically meets with the radiologist for a few minutes to make sure all images are clear and that the entire breast has been captured before dismissing the patient.
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