Computed Tomography (CT) Angiogram | 合法醫療器材資訊網

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A computed tomography angiogram (CT angiogram) is a test that uses X-rays[1] to provide detailed pictures of the heart and the blood vessels that go to the heart, lung, brain, kidneys, head, neck, legs, and arms.

This test can show narrowed or blocked areas of a blood vessel. It can also show whether there is a bulge (aneurysm[2]) or a buildup of fatty material called plaque[3] in a blood vessel.

During a CT angiogram, you lie on a table that passes through a doughnut-shaped opening in the scanner. A special dye (contrast material[4]) is put in a vein (I.V[5].) in your arm or hand to make the blood vessels easier to see on the scan. If you are having this test to look at your heart and the blood vessels that go to it (coronary arteries[6]), you may be given a medicine calle...