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2 March 2012 X-ray fluorescence molecular imaging with high sensitivity: feasibility study in phantoms
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Abstract
X-ray fluorescence molecular imaging (XFMI) can be a potential alternative to existing molecular imaging modalities providing high sensitivity and good spatial resolution. However, high sensitivity at a few tens of μg/mL can be reached only with monochromatic synchrotron x-rays; in typical laboratory setting using conventional x-ray sources XFMI has been reported to reach only about 10 mg/mL sensitivity. In this paper, we demonstrated the feasibility of simultaneously detecting x-ray fluorescence signals from a mouse-sized object containing iodine and indium solutions at 50 μg/mL concentration using a carbon nanotube (CNT) x-ray source. XFMI has the high potential to provide molecular imaging capability in small-animal models with high sensitivity, high spatial and temporal resolution, high multiplexing capacity, and at low radiation dose.
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Guohua Cao, Jianping Lu, and Otto Zhou "X-ray fluorescence molecular imaging with high sensitivity: feasibility study in phantoms", Proc. SPIE 8313, Medical Imaging 2012: Physics of Medical Imaging, 83130S (2 March 2012); https://doi.org/10.1117/12.911451
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