The difference between CT and X-ray:
X-ray inspection is also called filming. It has a strong penetrating ability. During inspection, it is like taking a flat image of the body. If you encounter a covered part, the film will not be exposed, but it will appear white after the film is processed.
Application situation:
X-ray is a convenient way to observe bones, and the price is relatively cheap. If you suspect acute trauma to the limbs, spine and other parts, injured bones, sudden acute pain or uncontrollable chronic pain, X-rays are generally preferred.
defect:
X-ray examination can only provide flat images, and the imaging is also easily affected by clothing, jewelry and even thick soft tissues. It is generally used to get a rough look at bone health.
Excessive X-rays can cause damage to biological cells. Therefore, under normal circumstances, it is not recommended to do X-rays for pregnant women and people who are preparing for pregnancy, so as not to affect the fetus.
CT examination actually uses X-rays to take pictures of the body, but it takes a lot of pictures, which is more detailed than X-rays. It is checked through the human body layer by layer, and after calculation processing, not only has less interference, but also can observe the tissue structure from multiple planes, reflecting the three-dimensional shape of the bones.
Application situation:
In a sense, CT can be said to be an enhanced version of X-rays. If you can't see clearly at X-rays, you may have to choose CT to take a closer look. Generally, CT examination of important parts, such as: head, chest, abdomen, spine, pelvis, etc. is better than conventional X-ray.
Diagnosis of chest diseases. CT has great significance in the diagnosis of lung nodules, enlarged lymph nodes, tracheal stenosis, etc., and the screening of lung cancer and other chest diseases.
CT examination is also of great value for the diagnosis of central nervous system diseases, head and neck diseases, and large blood vessel examinations. Such as: intracranial tumors, early detection of nasopharyngeal carcinoma, coronary atherosclerosis and coronary heart disease screening, etc.
defect:
The radiation is larger than X-ray, but there are low-dose spiral CT at present, and its radiation dose is 1/5 of that of ordinary CT, which has obvious advantages.
:
X-ray inspection is also called filming. It has a strong penetrating ability. During inspection, it is like taking a flat image of the body. If you encounter a covered part, the film will not be exposed, but it will appear white after the film is processed.
Application situation:
X-ray is a convenient way to observe bones, and the price is relatively cheap. If you suspect acute trauma to the limbs, spine and other parts, injured bones, sudden acute pain or uncontrollable chronic pain, X-rays are generally preferred.
defect:
X-ray examination can only provide flat images, and the imaging is also easily affected by clothing, jewelry and even thick soft tissues. It is generally used to get a rough look at bone health.
Excessive X-rays can cause damage to biological cells. Therefore, under normal circumstances, it is not recommended to do X-rays for pregnant women and people who are preparing for pregnancy, so as not to affect the fetus.
CT examination actually uses X-rays to take pictures of the body, but it takes a lot of pictures, which is more detailed than X-rays. It is checked through the human body layer by layer, and after calculation processing, not only has less interference, but also can observe the tissue structure from multiple planes, reflecting the three-dimensional shape of the bones.
Application situation:
In a sense, CT can be said to be an enhanced version of X-rays. If you can't see clearly at X-rays, you may have to choose CT to take a closer look. Generally, CT examination of important parts, such as: head, chest, abdomen, spine, pelvis, etc. is better than conventional X-ray.
Diagnosis of chest diseases. CT has great significance in the diagnosis of lung nodules, enlarged lymph nodes, tracheal stenosis, etc., and the screening of lung cancer and other chest diseases.
CT examination is also of great value for the diagnosis of central nervous system diseases, head and neck diseases, and large blood vessel examinations. Such as: intracranial tumors, early detection of nasopharyngeal carcinoma, coronary atherosclerosis and coronary heart disease screening, etc.
defect:
The radiation is larger than X-ray, but there are low-dose spiral CT at present, and its radiation dose is 1/5 of that of ordinary CT, which has obvious advantages.
