The near-infrared mammography scan is based on the principle that the human body's biological tissue absorbs infrared light. The breast tissue is transilluminated with an infrared probe, and various lesions of the breast tissue are displayed by the display. Inappropriate people: lactating women. Forbidden before examination: Select 7 to 10 days after menstruation is clean. Requirements for inspection: Checking for relaxation, checking may cause physical and psychological burdens, should be actively faced, and actively cooperate with the inspection.

Basic Information

Specialist classification: gynecological examination classification: urine / kidney function test

Applicable gender: whether women are fasting: not fasting

Analysis results:

Below normal:

Normal value:
no

Above normal:

negative:
Normal breast tissue is supplied by the inner and outer branches and the intercostal branch vessels, and the blood vessels are evenly distributed and travel naturally.

Positive:
When the breast appears to be inverted, the center of the light source is dark and the surroundings are bright, indicating that the breast is abnormal.

Tips: Choose 7 to 10 days after menstruation is clean. Normal value

Normal breast tissue is supplied by the inner and outer branches and the intercostal branch vessels, and the blood vessels are evenly distributed and travel naturally. Since most of the near-infrared mammography scanners produced in China are visible light and some are near-infrared, when the breast is transilluminated, most of the light can penetrate, and the blood vessels and uniforms that follow the normal anatomy are displayed on the monitor. The translucent area forms a positive ring, that is, the center of the light source is bright, and the concentric circles become dark.

Clinical significance

Abnormal results:

When the breast appears to be inverted, the center of the light source is dark and the surroundings are bright, indicating that the breast is abnormal.

When the breast is cancerous, the cancer tissue secretes an angiogenic factor, which causes the cancerous blood vessels to accumulate and congest, and the oxyhemoglobin increases. When the near-infrared rays are irradiated to the breast, the near-infrared rays are absorbed and appear dark on the monitor. Absorbing light and abnormal blood vessels, the breast has a reversed image. In the early stage of breast cancer, even in the stage of breast cancer, hemoglobin changes can occur, so the near-infrared breast scanner can be applied to the early diagnosis of breast cancer.

In the case of breast hyperplasia with chronic inflammation, due to repeated stimulation of inflammation, there will also be vascular clusters, congestion, and increased oxygenated hemoglobin. Therefore, in the case of near-infrared examination, these cases may also show breast cancer near-infrared, and misdiagnosed as breast. Cancer, a false positive result. There are also a small number of breast cancers that are not only in the early stage, but even if the mass grows larger, there may be no hemoglobin changes. Therefore, for these patients, near-infrared rays may have false negative results.

People who need to be examined: the breasts touch people with lumps.

Positive results may be diseases: breast nodules, invasive breast cancer, breast hyperplasia, cystic hyperplasia of the breast, breast cancer, breast fibroadenoma, galactorrhea, milk hair precautions

Forbidden before examination: Select 7 to 10 days after menstruation is clean.

Requirements for inspection: Checking for relaxation, checking may cause physical and psychological burdens, should be actively faced, and actively cooperate with the inspection. The examination needs to expose the breasts, so the upper body should wear clothes that are easy to take off. For patients with newly diagnosed breast diseases, if they are not satisfied with the physical examination, they can cooperate with the patients and check again at the best physical examination time, such as on the 10th day of the menstrual cycle to avoid physiological changes in the breast during the menstrual cycle. The interference caused. The examination should be adequately illuminated to avoid neglecting signs caused by minor lesions. The patient has a slight pain and does not need to be nervous. Infrared may cause cancer problems in the body and should be checked when it is necessary to check.

Inspection process

The patient takes a seat in the darkroom condition, sits on the swivel chair, faces the camera, the upper body is bare, the back of the hands, the upper body leans forward, so that the breasts naturally sag, and rotate to the positive or lateral position according to the examination. Try to avoid light leakage during inspection to avoid lack of grayscale contrast. And check the quadrants one by one to avoid missing. The lesion is close to and facing the camera to reduce distortion. The brightness is selected to be as dark as possible on the basis of the gray level, and the error of the low gray level lesion is reduced. It is best to choose 7 to 10 days after menstruation is clean.

Not suitable for the crowd

Taboo population: menstrual period, lactating women.

Adverse reactions and risks

Nothing.