Diagnostic significance of molybdenum and palladium

As a non-invasive examination method, it is relatively painless, simple, high resolution and good repeatability. The photographed images can be compared before and after, regardless of age and size. As a routine examination, the diagnostic sensitivity of breast cancer is 82% ~ 89%, and the specificity is 87% ~ 94%.

Eight, X-ray mammography image quality evaluation standard

1, CC bit projection:

Diagnostic requirements:

1) imaging posture standard

The imaging of pectoral muscle at the image boundary is clearly visible.

The image of retroglandular adipose tissue is clearly displayed.

The tissue image in the middle of the breast is clearly displayed.

The image shows no wrinkles in the skin.

The left and right chest images are clear and symmetrical.

2) Standards of photographic conditions

You can see the outline of the skin under the observation lamp.

The structure of blood vessels can be observed through dense tissues.

The edges of all blood vessels, fibromuscles and pectoral muscles are clearly shown.

The image of the skin structure along the pectoral muscle is clear and obvious.

2. Breast oblique projection (MLO position)

Diagnostic requirements:

1) imaging posture standard

The angle of the pectoral muscles is normal.

Visible lower corner of breast

The image of lateral breast tissue is clear and obvious.

The image of fat tissue behind the breast is clear and obvious.

The shadow of chest tissue and/or calibrated nipple is clear and obvious.

Skin pleated skirt with inconspicuous image

The imaging of the left and right sides of the chest is clear and symmetrical.

2) Photography condition standard:

You can see the outline of the skin under the observation lamp.

The vascular structure can be seen through the dense parenchyma of the breast.

All blood vessels and pectoral muscles have clear edges.

The skin structure along the pectoral muscle is clearly imaged.