Computed tomography with single-shot dual-energy sandwich detectors

Seung Ho Kim; Hanbean Youn; Daecheon Kim; Dong Woon Kim; Hosang Jeon; Ho Kyung Kim

doi:10.1117/12.2216678

30 March 2016 Computed tomography with single-shot dual-energy sandwich detectors

Seung Ho Kim, Hanbean Youn, Daecheon Kim, Dong Woon Kim, Hosang Jeon, Ho Kyung Kim

Proceedings Volume 9783, Medical Imaging 2016: Physics of Medical Imaging; 97833Y (2016) https://doi.org/10.1117/12.2216678
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

Abstract

Single-shot dual-energy sandwich detector can produce sharp images because of subtraction of images from two sub-detector layers, which have different thick x-ray converters, of the sandwich detector. Inspired by this observation, the authors have developed a microtomography system with the sandwich detector in pursuit of high-resolution bone-enhanced small-animal imaging. The preliminary results show that the bone-enhanced images reconstructed with the subtracted projection data are better in visibility of bone details than the conventionally reconstructed images. In addition, the bone-enhanced images obtained from the sandwich detector are relatively immune to the artifacts caused by photon starvation. The microtomography with the single-shot dual-energy sandwich detector will be useful for the high-resolution bone imaging.

Citation Download Citation

Seung Ho Kim, Hanbean Youn, Daecheon Kim, Dong Woon Kim, Hosang Jeon, and Ho Kyung Kim "Computed tomography with single-shot dual-energy sandwich detectors", Proc. SPIE 9783, Medical Imaging 2016: Physics of Medical Imaging, 97833Y (30 March 2016); https://doi.org/10.1117/12.2216678

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