| Literature DB >> 23123972 |
Liming Nie1, Xin Cai, Konstantin Maslov, Alejandro Garcia-Uribe, Mark A Anastasio, Lihong V Wang.
Abstract
ABSTRACT. Photoacoustic tomography (PAT) of the human brain is challenging due to the fact that the skull strongly absorbs and scatters light, and attenuates and distorts ultrasound as well. For the first time, we demonstrated the feasibility of PAT through a whole adult human skull. A photon recycler (PR) was built to increase light transmittance through the skull. Both a graphite target and a canine brain were imaged through the skull. Use of the PR was found to improve the photoacoustic signal-to-noise ratio by a factor of 2.4. In addition, subtraction of photoacoustic signals that arise from light absorption within the skull significantly improved the contrast of the target. Our results indicate that PAT can potentially be applied to in vivo human brain imaging.Entities:
Mesh:
Year: 2012 PMID: 23123972 PMCID: PMC3487537 DOI: 10.1117/1.JBO.17.11.110506
Source DB: PubMed Journal: J Biomed Opt ISSN: 1083-3668 Impact factor: 3.170