In medical documentation, being an X-ray, MRI, description of physical examination or other, the sides "right" and "left" should be always used as they appear in your body. So, the "left neural foramen" is on your left-hand side.
Below is an X-ray image of the chest cavity. You can see the big letter "L" and all the "left" terms on the right side of the image, because this is a view from the front, so they are all point to the left parts of the body. The confusion could occur when someone points to the image and just says "here on the left," without saying "side of the body " or "image." Anyway , when a doctor says something is on the left side, it should be always on your left.
(Source: Lifeinthefastline, CC licence)