The main trunk of the pulmonary artery is about 4.6cm suggesting widening of the main trunk of the pulmonary artery, which can be seen in congenital heart disease, chronic pulmonary heart disease and other conditions.
1. The main trunk of the pulmonary artery is the channel through which blood enters the pulmonary circulation from the right ventricle, and its diameter can be measured by cardiac ultrasound and chest CT, etc. The normal diameter of the main trunk of the pulmonary artery ranges from 1.2 to 2.6 cm, and when the examination result shows that the main trunk of the pulmonary artery is about 4.6 cm, it suggests that there is widening of the pulmonary artery, which is mostly a pathological state.
2. Common diseases that can cause widening of the pulmonary artery include chronic pulmonary heart disease, ventricular septal defect and other congenital heart disease combined with pulmonary hypertension, pulmonary embolism, etc., which need to be diagnosed by combining the patient’s medical history, clinical symptoms, physical examination and other auxiliary examination results.
It is recommended that patients actively seek medical attention to clarify their condition and standardize treatment under the guidance of a doctor to avoid delays.