An article on IVUS by Dr. Reid and Dr. Diethrich, which references CCSVI on page 2. If you click, "Look Inside," which is on the top right, you get more of the article and pictures of what an IVUS probe looks like and the Volcano catheter pullback device. It's not letting me copy to quote but I'd have quoted from page 2, starting with, "IVUS has 2 main clinical roles," if I'd been able to quote.
I was able to get the full paper. Open up the preview page so that the image is in its own browser window. In the browser's address bar notice that the url ends in 000.png. Simply change this to read 001.png and hit enter to load the next page. The pages go up to 011.png.