What does ct angiography mean

CT angiography is mainly suitable for diseases such as brain tumors, cerebral hemorrhage, cerebral infarction, etc. It is also very accurate in examining the liver, kidneys, spleen and other parts. CT angiography is a very advanced examination method that can quickly scan a large area and can examine and diagnose the details of blood vessels in all parts of the body. What does CT angiography mean in detail?

1. Clinical significance

Abnormal results: CT contrast-enhanced scan can display the gray matter and white matter of the brain tissue, the ventricular system and the subarachnoid space, and can directly display changes such as brain tumors, cerebral hemorrhage, and cerebral infarction; lung examination can clearly display the fine texture of the lungs; it can clearly display the morphology, contours, and lesions of organs such as the liver, spleen, pancreas, kidneys, and adrenal glands.

Second, adapt to the crowd

Patients with brain tumors, cerebral hemorrhage, cerebral infarction, lung disease, liver, spleen, pancreas, kidney, adrenal gland and other organ diseases.

3. Unsuitable people

(1) Patients with allergic constitution or a history of allergy to ionic contrast agents (if using ionic contrast agents, an iodine allergy test is also required).

(2) Patients with intracranial or intraspinal tumors, aneurysms, vascular malformations, and infections.

(3) Those with a history of epilepsy.

(4) Those with impaired heart, lung, liver or kidney function.

(5) Patients with starvation and consumption caused by malignant tumors, hypoproteinemia, and water and electrolyte imbalance.

(6) Infants and elderly patients over 60 years old.

(7) Patients with diabetes, hyperthyroidism, and oncocytoma.

(8) Certain special scanners (such as dynamic scanning of various parts, dual-phase/tri-phase scanning of the liver, CT angiography, etc.).

4. Taboos before examination

(1) For patients undergoing enhanced scanning, those undergoing the scan in the morning should not eat breakfast, and those undergoing the scan in the afternoon should not eat lunch.

(2) Patients undergoing abdominal CT scans should take an appropriate amount of water containing contrast agent orally before the examination. Patients undergoing pelvic CT scans should take a large amount of clean water or water containing contrast agent and wait until the bladder feels full before undergoing the CT scan.

(3) Patients undergoing CT examinations should remove any metal objects in the examination area to reduce artifacts.