OsiriX [1] is a popular OS X&#x2F;iOS viewer.<p>3DSlicer [2] is an excellent alternative that runs on Win&#x2F;OS X&#x2F;Linux<p>[1] <a href="http:&#x2F;&#x2F;www.osirix-viewer.com" rel="nofollow">http:&#x2F;&#x2F;www.osirix-viewer.com</a><p>[2] <a href="http:&#x2F;&#x2F;www.slicer.org" rel="nofollow">http:&#x2F;&#x2F;www.slicer.org</a>