Results from MRI/MRA of my brain

This picture is an example of the Carotid arteries.

the reason for this picture is the basis for my post. I have a narrow left cerebral carotid artery. In lamen terms the artery that supplies blood to the left side of my brain is narrow, not providing my brain with enough blood. This significantly increases my risk for a stroke or TIA (mini stroke). The radiologist suggested that I have a cerebral angiogram

to see how narrow it is and if i need brain surgery to correct it. I will keep updating as I learn more, my appointment with the neurologist is April 10th.