Open AccessSingle‐exposure dual‐energy‐subtraction X‐ray imaging using a synchrotron source
Author(s) -
Carnibella R. P.,
Fouras A.,
Kitchen M. J.
Publication year - 2012
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049512033900
Subject(s) - subtraction , imaging phantom , dual energy , synchrotron , radiography , soft tissue , projection (relational algebra) , biomedical engineering , materials science , physics , optics , computer science , medicine , radiology , bone mineral , mathematics , nuclear physics , arithmetic , osteoporosis , algorithm , endocrinology
Projection radiography of the chest has long been plagued by the presence of bony anatomy obscuring visibility of the lungs and heart. Dual‐energy subtraction is a well known method for differentiating bone and soft tissue, but existing techniques are not ideally suited to dynamic imaging. Herein a new technique to address this problem is presented. The harmonic content of a monochromated X‐ray beam is exploited, and two in‐line detectors are used to perform single‐exposure dual‐energy imaging. Images of a phantom demonstrate the ability to both separate and quantitatively measure the thickness of constituent materials, whilst images of a mouse thorax demonstrate the ability to separate bone and soft tissue in a biological specimen. The technique is expected to improve the performance of dynamic lung imaging.