CPT code for MRV of brain

I need a CPT code for MRV Brain (Magnetic Resonance Venography). I have been told that MRV and MRA (magnetic resonance angiography) of brain has the same CPT code. Any comments will be appreciated.

A'amir Shaikh
Practice Administrator
Complete Cardiac Care
Houston, TX

Mrv

MRV stands for magnetic resonance venography. It is an MRI studies of the blood vessels. MRVs are used to assess abnormalities in the blood vessels of patients with a history of stroke, aneurysm, heart disease, and atherosclerotic vascular disease. The type of magnetic resonance imaging (MRI) used to visualize veins. The MRV uses the same machine as an MRI, but a special computer software allows it to only extract generated-by-blood images, as it flows through the veins. These images give doctors a rough idea of whether blood flow through a vein of interest is affected by blood clots or other disease processes

http://www.aetna.com/cpb/medical/data/1_99/0094.html
http://www.wpsic.com/providers/medical_policies/Magnetic%20Resonance%20Angiography%20(MRA).pdf
http://www.bluecrossma.com/common/en_US/medical_policies/106%20Magnetic%20Resonance%20prn.pdf

look at codes 70551-70553