abnormal arteriography
Introduction
Introduction Arterial angiography is an examination method that fills the arteries with contrast agents and develops the arterial system. The distribution, number, and morphology of the human arterial system are relatively constant, and angiographic examination is mainly an angiographic examination. In order to obtain an optimal display of the artery to be examined, it is desirable to introduce the catheter as close as possible to the artery of interest, and to achieve as high a concentration as possible after the contrast agent is injected. According to the position of the catheter tip from the vessel of interest, it can be divided into non-selective angiography, selective angiography and superselective angiography.
Cause
Cause
The reason is that the eating habits of Chinese people are becoming more and more westernized, which makes the risk factors of coronary artery disease, including hypertension, hyperlipidemia, diabetes, smoking, etc., gradually increase, arterial disease increases, arterial blood vessels become narrow or Blocked.
Examine
an examination
Related inspection
Cardioangiography
The obstruction site was visualized by an angiographic image, and the degree of stenosis of the intravascular lumen at the lesion was estimated, as well as the collateral circulation.
Diagnosis
Differential diagnosis
Differential diagnosis of angiographic abnormalities:
1. Atherosclerosis: This is because the endothelial cells of the arteries are damaged, causing cholesterol to accumulate under the endothelial cells. Through the action of monocytes in the blood, the endothelial cells are degenerated, platelets accumulate, smooth muscles proliferate, and atherosclerosis is formed. The arterial lumen is thus gradually narrowed and the blood flow is not smooth. This is like a long-term accumulation of silt in the ditch, making the water flow poor. This is like a long-term accumulation of silt in the ditch, making the water flow poor.
2, platelet aggregation: platelet activation is the main cause of arterial thrombosis, if the platelet aggregation is enhanced, it will block the artery.
3, vasospasm, blood vessels near the atherosclerotic lesions, due to excessive tension, causing spasm and contraction. Vasospasm? In the blood vessels near the atherosclerotic lesion, it will cause sputum and contraction due to excessive tension.
4. Thrombosis: About 25 to 60% of patients have thrombosis and atherosclerosis. Thrombosis: About 25 to 60% of patients have thrombosis and atherosclerosis.
