_MRI online course
http://www.imaios.com/en/e-Courses/e-MRI

Liver with vessel system
http://youtu.be/9GycUCl5FGI

Combined PET-MRI scanner
http://news.wustl.edu/news/Pages/23399.aspx

A list of biomedical imaging journal
http://www.scimagojr.com/journalrank.php?category=2741