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The mysterious world of cerebral angiography: How to uncover the secrets of cerebral blood vessels?
Cerebral angiography is an imaging technique that can help doctors examine the condition of blood vessels in and around the brain to detect abnormalities such as arteriovenous malformations and aneurysms early. In 1927, this technique was first introduced by Portuguese neurologist Egas Moniz. His pioneering work at the University of Lisburn laid the foundation for our current understanding of the brain's vascular structure. With the advancement of technology, cerebral angiography is not only a diagnostic tool, but also begins to involve the treatment level.
Cerebral angiography can provide clearer images than computed tomography angiography (CTA) and magnetic resonance angiography (MRA), especially in the evaluation of the vascular lumen and its related structures.
Uses of cerebral angiography
Cerebral angiography helps diagnose a variety of intracranial and extracranial diseases. Intracranial diseases include non-traumatic subarachnoid hemorrhage, intracranial aneurysms, stroke, and cerebral arteriovenous malformations. Extracranial diseases include scapular artery steal syndrome, carotid artery stenosis, and epistaxis. Although CTA and MRA are widely used, cerebral angiography is still regarded as the gold standard for detecting intracranial aneurysms.
Inspection process
Prior to surgery, the medical team will conduct a detailed medical history and neurological examination to ensure the patient is suitable for the procedure. Blood tests and image comparisons are also critical during this process. During angiography, the doctor inserts a catheter through the femoral or radial artery and injects contrast material into the blood vessel to take a series of images. This procedure requires care to avoid any complications, such as hematoma or stroke.
"This process not only allows doctors to observe the structure of blood vessels, but also to intervene in a timely manner, which has saved lives in many cases."
Imaging technology and perspective
During cerebral angiography, doctors use digital subtraction angiography to observe blood vessel flow. Image quality and clarity are crucial, so there are strict requirements on the contrast agent injection rate and image capture rate. Different vascular perspectives can help doctors locate and diagnose vascular lesions more clearly.
Postoperative care and complications
After performing a cerebral angiogram, doctors continue to monitor the patient's neurological status and watch for possible complications, such as hematoma or transient ischemic attacks. According to reports, about 4% of patients will develop femoral hematoma, while the incidence of other serious complications is lower. However, there are risks with any surgery, especially high-risk procedures like these that involve the nervous system.
Future Development
With the development of science and technology, the technology of cerebral angiography is also constantly improving. Several new technologies and medical devices are making this procedure safer and more efficient. In the future, with the help of artificial intelligence and machine learning, cerebral angiography will be interpreted more quickly and accurately, providing patients with better prognosis. What are the secrets of deep-seated cerebrovascular problems that we have not uncovered?
