To answer very simply: NO.

Maybe something with MRI

http://medicalxpress.com/news/2011-12-powerful-mri-track-iron-brain.html

http://www.eurekalert.org/pub_releases/2015-03/chla-tbi031915.php

http://medicalxpress.com/news/2015-10-mri-effectively-hemochromatosis-iron-burden.html

Iron oxide nanoparticles to replace gadolinium

http://www.eurekalert.org/pub_releases/2013-07/sumc-iis070813.php

http://phys.org/news/2012-06-superparamagnetic-iron-oxide-nanoparticles-track.html

http://le-fil-science.cea.fr/actualites-scientifiques/Pages/sante-sciences-du-vivant/visualisation-directe-noyaux-sous-corticaux-IRM-haut-champ-magnetique.aspx

http://phys.org/news/2011-12-effective-mri-contrast-agent-cancer.html

Regards,

Joachim