Integrated image presentation of transmission and fluorescent X-ray CT using synchrotron radiation

We have developed a computed tomography (CT) system with synchrotron radiat ion (SR) to detect fluorescent X-rays and transmitted X-rays simultaneously . Both SR transmission X-ray CT (SR-TXCT) and SR fluorescent X-ray CT (SR-F XCT) can describe cross-sectional images with high spatial and contrast res olutions as compared to conventional CT. TXCT gives morphological informati on and FXCT gives functional information of organs. So, superposed display system for SR-FXCT and SR-TXCT images has been developed for clinical diagn osis with higher reliability. Preliminary experiment with brain phantom was carried out and the superposition of both images was performed. The superp osed SR-CT image gave us both functional and morphological information easi ly with high reliability, thus demonstrating the usefulness of this system. (C) 2001 Elsevier Science B.V. All rights reserved.