What anatomical structures are well seen with MRI  


The above images were both obtained without iv contrast enhancement. The image on the left is a CT and the image on the right is a T2 weighted MRI. Note that on the CT all of the blood vessels and solid organs (liver, pancreas, spleen and kidneys) appear the same shade of gray. Note that on the MRI all of these structures are subtly different shades of gray, allowing us to distinguish them. Also note that the portal vein can be discretely seen from the adjacent pancreas on MRI, and individual nerve roots of the spinal canal are visible.