Projection method of molybdenum and palladium

You can stand, sit, lie on your side or lie prone when filming. Generally, standing position is adopted to facilitate projection, but the position is easy to move, which affects the image quality.

Appropriate posture can be selected according to the patient's situation and special requirements.

2) Projection position: normal position and special position: cc position, MLO position, ML position, MOL position, tangent position, and click effective.

There can be axial position, lateral position, lateral oblique position, local spot film and spot film amplification photography.

(1) Axis position (CC): also called up and down position or head-tail position \ head-tail position. X-ray beams are projected from top to bottom.

(2) lateral position: also known as internal and external position; Rotate the X-ray stand 90 degrees, put the film on the outside of the breast, and project the X-ray beam from the inside out.

(3) Lateral oblique position (MLO view): It can be divided into internal and external oblique position and internal and external oblique position. Internal and external oblique position means that the film is placed under the lateral side of the breast, and the X-ray beam is projected from the upper side of the medial side of the breast to the lower side of the lateral side at a 45-degree angle; The positions of the external oblique and the internal oblique are opposite. Generally speaking, oblique projection inside and outside is more common.

(4) Local spots and local enlarged spots:

As an additional projection position, it is sometimes valuable.

Generally speaking, this position can be projected under the following circumstances:

1, when a hard object or mass is touched clinically, but the X-ray film fails to show it;

2. When molybdenum and palladium tablets are suspected to have tiny calcification and cannot be completely determined;

3, galactography, suspected small branch duct lesions;