Arterial Growth

Here are 2 sets of arteriograms (or angiograms, which are x-rays taken with the use of special dyes to visualize arteries):

The left side of both images show very poor arterial blood flow in the leg due to vascular disease.  These patients often end up needing amputations due to the lack of blood flow. 

The right side of each image shows vastly improved arterial supply after stem cell therapy.  The stem cells were injected intramuscularly, meaning into the calf and other lower leg muscles.  The stem cells allow for growth of new blood vessels and essentially save these patients' limbs.