Precautions for mammography?

In order to make female friends have a more intuitive and comprehensive understanding before mammography, I will briefly describe the examination process and precautions of mammography, hoping to help everyone. The standard photography of mammography includes two * * * shots in the head and tail position ***CC*** and oblique position ***MLO***, and one * * * four exposures.

frequency of mammography screening

The World Health Organization and American Cancer Society suggest that normal women aged 35-5 should have mammography screening once, and the frequency of mammography screening should be determined according to the results. 5-74-year-olds should have mammography every two years. The onset age of female breast cancer in China is earlier, and the incidence of breast cancer is lower than that in Europe and the United States. It is generally recommended that women over 4 years old need to go to a hospital breast specialist for routine molybdenum target examination. According to the examination results, combined with breast cancer-related risk factors, the frequency of molybdenum target examination is determined.

mammography placement

The standard mammography examination includes bilateral X-ray films in positive and lateral positions, with ***4 exposures. Sometimes it is necessary to project oblique photos, regional spot photos and spot photos to enlarge photos.

Breast compression imaging is to place * * * on the * * * support plate, and then apply appropriate pressure to slowly compress * * * for exposure, which is mainly due to uneven thickness of each part of * * *, and the penetration of molybdenum target X-ray is weak, so all parts may be overexposed or underexposed by direct irradiation. Therefore, compressing * * * makes the thickness of each part uniform and reduces * * * slip, which can improve the imaging quality and reduce the radiation dose. Subjects sometimes have slight pain in the process of compression imaging, but each time lasts for a short time, only a few minutes, which is tolerable.

Limitations of mammography

Although X-ray examination is the main method for early diagnosis of breast diseases, it also has some limitations. Some women are not suitable for this examination: although the X-ray dose of breast molybdenum target is small, it is harmful to human body if it is often irradiated, so young unmarried, pregnant and breastfeeding women should try to irradiate X-rays less; If the interval between the two X-ray examinations is less than 3 months, it is better to choose other methods to avoid excessive radiation exposure; Placement of * * * prosthesis after breast cancer surgery, such as silicone prosthesis, may cover up the focus, and it is not suitable for X-ray examination. In addition, X-ray examination can't find 1% of breast cancer, which is mainly due to the limited penetration of breast X-ray, the structural variation of * * * after breast cancer surgery or * * * reconstruction, and the poor imaging effect caused by dense * * *, so there are still 5% ~ 15% false negatives, that is, some confirmed mammography examinations of breast cancer can't be found; Mammography also has a certain blind spot, which is easy to leave lesions in the higher and deeper position of the breast and the tail of the breast. Therefore, it should be noted that any examination project is to help clinical breast specialists make a diagnosis, thus assisting the next treatment and treatment. Any examination results should be judged by the doctor in combination with the patient's medical history and clinical physical examination results. Patients should not make random suspicions on their own according to a certain test result without a little knowledge.