Briefly describe the main points of lateral photography of elbow joint.

The main points of elbow lateral photography are as follows:

1. The elbow joint needs to be bent 90 degrees to display the overlapping image information of bone and joint structure.

2. The X-ray tube is placed on one side of the subject, and the detector or film box is located on the other side. Lateral radiographs can display more image information.

3. The elbow joint is a compound joint, which consists of the lower end of humerus, olecranon fossa of ulna, radial head, joint capsule and ligament.

Patient preparation and posture placement

When taking lateral radiography of elbow joint, the patient should take a sitting position and put his arm on the radiography bed or examination bed. Forearms and hands should be close to the photographic bed or examination bed to maintain stability. The elbow joint is bent at a 90-degree angle and placed in the center of the film box. It should be noted that patients should avoid elbow hyperextension or hyperflexion to avoid imaging changes.

In addition, the patient's shoulders and wrists should also be placed in the correct position. Relax your shoulders and lean forward slightly. Wrist should be flat on the cassette, and fingers should be straight naturally. This can ensure the integrity of the elbow joint and the normal physiological bending can be clearly displayed.

Photographic technical parameter setting

In lateral photography of elbow joint, it is very important to set correct technical parameters in order to obtain high-quality images. Generally speaking, it is necessary to choose appropriate exposure conditions and focal length to fully display the details of the elbow joint. Exposure conditions can be adjusted according to the patient's body shape, muscle development and other factors. The focal length should be set at a distance that can clearly show the tissues around the elbow joint.

In addition, the angle of photography is also very important. The correct angle can ensure the authenticity and accuracy of the image. When taking lateral photography of elbow joint, the photography angle should be parallel to the coronal plane of elbow joint to avoid deformation or distortion.

Image processing and analysis

1, analysis

After the lateral photography of elbow joint is completed, the image needs to be processed and analyzed. This includes properly adjusting the contrast and brightness of the image to improve the image quality. At the same time, doctors need to observe the images carefully to find possible lesions or injuries.

Step 2 deal with

When processing the lateral image of elbow joint, we should pay attention to the following points: firstly, we must ensure that the outline and structure of elbow joint are clearly visible without occlusion and blur. Secondly, we should observe the soft tissues around the elbow joint, including muscles, ligaments and joint capsules. Finally, we should pay attention to observe the density and shape of elbow bone to judge whether there are abnormal conditions such as fracture or osteopathy.