Normal chest radiograph of women

A chest X-ray is usually required during a routine physical examination, but many people do not know much about this behavior and do not know the significance of a chest X-ray during a routine physical examination. Therefore, in our daily life, we should learn more about these aspects and understand the role of chest X-rays in physical examinations, which will be of great help in maintaining our health.

Normal chest X-ray:

(1) Lung field: The translucent area extending from the mediastinum and lungs to the outside on inverse lung CT. When everything is normal, the translucency of the lung fields on both sides is the same. For convenience

For accurate positioning, straight lines were drawn along the lower edges of the 2nd and 4th anterior ribs to divide the lung field into three parts: upper, middle, and lower, namely the upper lung field, middle lung field, and lower lung field. At the same time, the lung field was divided vertically into inner, middle, and ventral.

(2) Lungs: On inverse lung CT scan, the dark shadow of the lungs is located in the middle field of both lungs, with the left side slightly higher. It is composed of the pulmonary artery, pulmonary vein, bronchitis and lymph node tissue. The main components are the pulmonary artery and pulmonary vein.

(3) Pulmonary texture: A reticular structure that radiates from the lungs to the jugular vein and gradually narrows. It is the projection of the pulmonary artery, pulmonary vein, and bronchitis.

(4) Alveoli: The right lung is divided into three lobes: upper, middle, and lower. The left lung is divided into two lobes: upper and lower. The alveoli are separated by thickened pleura between the lobes.

(5) Lung segments: The right lung is divided into 10 segments, and the left lung is divided into 8 segments. The names of the lung segments are derived from the corresponding segmental bronchitis. Lung CT scan cannot show the boundaries of lung segments, but its approximate location can be determined.

(6) Mediastinum: It is located behind the shoulder blades and in front of the lumbar spine, between the two lungs, with the diaphragm channel above and the diaphragm below. The main structure is composed of the heart, large blood vessels, bronchi, bronchitis, esophagus, thymus, etc. Lung CT can only show the bronchi, main bronchus and mediastinum adjacent to the lungs.

(7) Diaphragm: Located near the middle of the chest and abdomen, it is dome-shaped. The top of the right diaphragm is generally at the level of the 5th-6th anterior intercostal space. The right diaphragm is generally slightly higher than the left diaphragm. The diaphragm, sternum and heart form the costophrenic angle and cardiophrenic angle respectively.

(8) Sternum soft tissue: can display information about the soft tissue shadows of the neck muscles, skin folds on the neck, pectoralis major muscles, female breasts and nipples.

(9) Skeleton: can display information about ribs, clavicle, neck, part of the shoulder blade and lumbar vertebrae.