Tomographic molecular imaging of x-ray-excitable nanoparticles

Guillem Pratx, Colin M. Carpenter, Conroy Sun, Ravi P. Rao, Lei Xing
2010 Optics Letters  
X-ray luminescence computed tomography (XLCT) is proposed as a new dual molecular/anatomical imaging modality. XLCT is based on the selective excitation and optical detection of x-ray-excitable nanoparticles. As a proof of concept, we built a prototype XLCT system and imaged near-IR-emitting Gd 2 O 2 S:Eu phosphors in various phantoms. Imaging in an optically diffusive medium shows that imaging performance is not affected by optical scatter; furthermore, the linear response of the reconstructed
more » ... f the reconstructed images suggests that XLCT is capable of quantitative imaging.
doi:10.1364/ol.35.003345 pmid:20967061 fatcat:acwbx6jl2feolcxxisgzwvdhwa