Why does Chest CT Become the Main Physical Examination Item?

The previous article briefly introduced the difference between X-ray and CT examination, and let’s then talked about another question that the public is more concerned about at present – why can chest CT become the main physical examination item?

It is believed that many people have been to medical institutions for physical examination in order to manage and monitor their physical health. Standing up is actually an X-ray, lying down is a chest CT.

The chest is a very typical organ in CT imaging. The lung contains a large amount of gas, and the attenuation of gas to X-ray is very small. Combined with the imaging principle mentioned above, we can see that there is a huge difference in the density of gas, surrounding soft tissue and bone tissue, and the attenuation of X-ray is very different.

The Healthy China 2030 strategy calls for promoting the construction of a healthy China and improving people’s health. The rapid development of medical imaging equipment has laid the foundation for the strategic goal. At present, the incidence of pulmonary nodules in the population remains high. Early screening and early diagnosis are of great significance to the health management and prognosis of patients. Chest CT examination from the preparation of the patient before the examination to the completion of the scan, only three to four minutes, the speed is very fast, can meet the daily demand.   examination project at present.

In addition, more importantly, the current CT tomography image can achieve 1mm ultra-thin layers. This can not only greatly improve the detection rate of tiny nodules, doctors can also perform special processing on images according to different lesions, customize personalized programs, and “change the pattern from inside to outside.” We can think of CT as an ultra-high-definition camera, using high-end technology to capture high-definition image details and make accurate judgments.

For chest CT, it also has its own “exclusive filter”, professionally called “lung window”, which we can understand as a filter used to focus on the situation in the lung. It’s also important for the diagnosis and treatment of diseases.

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