What is computed tomography (CT) angiography? CT angiography is a type of medical test that combines a CT scan with an injection of a special dye to produce pictures of blood vessels and tissues in a part of your body. The dye is injected through an intravenous (IV) line placed in …

2024年7月23日 · CT angiography of the cerebral arteries, also known as a CTA carotids or an arch to vertex angiogram, is a non-invasive technique that allows visualization of the internal and external carotid arteries and vertebral arteries and can include just the intracranial compartment or also extend down to the arch of the aorta.

4 天之前 · CTA：可以進行顱內動脈瘤大小的測量，並較好地顯示腦動脈瘤局部複雜的解剖結構及周圍血管分支情況。 64排以上的螺旋CT因其有掃描速度快、圖像質量好等優點，診斷結果參考性較強但是存在輻射，不適合孕婦或者兒童等敏感人群。

2024年6月13日 · CT angiography (CTA) combines a CT scan with the injection of dye. CT stands for computed tomography. This technique is able to create pictures of the blood vessels in the head and neck.

Computed tomography angiography (CTA) uses an injection of contrast material into your blood vessels and CT scanning to help diagnose and evaluate blood vessel disease or related conditions, such as aneurysms or blockages. CTA is typically performed in a radiology department or an outpatient imaging center.

2024年9月30日 · Explore CTA brain scans, their applications in cerebrovascular diagnosis, advantages, limitations, and future developments in neuroimaging technology.

常见的血管成像技术主要有DSA、CTA、MRA这三种： 在临床上被认为是CVD 诊断的金标准，是一种较为可靠、准确的诊断方法。 DSA是一种有创检查方式，在临床应用中可能会诱发或者加重患者血管痉挛，造成动脉瘤破裂等。 同时，DSA对操作人员的要求较高、花费时间较长、检查费用高，给患者造成较大经济负担。 可以进行颅内动脉瘤大小的测量，并较好地显示脑动脉瘤局部复杂的解剖结构及周围血管分支情况。 64 排以上的螺旋CT因其有扫描速度快、图像质量好等优点， …

2023年10月26日 · 頭部電腦斷層血管攝影 (Brain CTA)使用特殊的X 射線設備來幫助評估蜘蛛網膜下腔出血、血管瘤、不明原因的腦室積水及第三位對顱神經麻痹、顱內主要動脈梗塞、動脈硬化、狹窄、血管畸形等。

2014年7月10日 · This analysis shows that CTA has high diagnostic value in detecting high degree of cerebral arterial stenosis (>70%) whereas CTP provides high specificity in the detection of ischemia and infarct tissue of brain.

Computed tomography angiography, or CTA, is a safe outpatient procedure that helps locate and capture images of an aneurysm in the brain. This technology uses specially designed X-rays and intravenous dyes or contrast agents to see the detailed …