MRI and CT are more expensive depending on what kind of test the patient is having. MRI includes MR scan, MR enhancement, MR angiography, and functional MRI. CT includes CT scan, CT enhancement, CT angiography, and high-resolution CT. In terms of plain scan, MRI is more expensive than CT, MRI costs about$600-800, CT only needs about$200-250. However, in terms of vascular imaging, CT is more expensive than MRI because vascular imaging requires the injection of contrast agent, which is expensive. Vascular CTA of the head and neck, also known as CT arterial imaging, costs about$1800-2200. MRI angiography of the head and neck, even if it is divided into two parts: head angiography and neck angiography, will charge no more than$1200 at most.