Comparative study of in-vivo image improvement and dose reduction with dual energy angiography

G. Baldazzi, T. Bernardi, D. Bollini, G. Califano, L. Calzolaio, M. Gambaccini, M. Gombia, G. Pancaldi, L. Roma, P. L. Rossi, A. Sarnelli, A. Taibi, A. Tuffanelli, M. Zuffa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The imaging capabilities of the Dual Energy Angiography (DEA) based on the Bragg diffraction on a pyrolitic graphite target and CCD detectors coupled with Fiber Optic plate with Scintillator (FOS) was evaluated using an experimental setup built for phantoms and small animals. The scanning system was built with a new X-ray source, which produces two thin parallel quasi-monochromatic beams starting from a conventional X-ray tube; these beams have peak energies centered before and after the iodine K-edge energy respectively. The polychromatic X-ray beam is monochromatized by Bragg diffraction on a pyrolitic graphite crystal and splitted in two thin parallel beams. The beams go through the phantom and are detected with a CCD coupled with FOS detector. The image results as difference between the remaining intensities of two beams. In this work, we will report results obtained in terms of sensitivity, image quality and dose reduction in comparison with standard angiographic apparatus. In particular, the capability to visualize small vessels will be discussed.

Original languageEnglish
Title of host publicationIEEE Nuclear Science Symposium Conference Record
EditorsS.D. Metzler
Pages2124-2127
Number of pages4
Volume3
Publication statusPublished - 2003
Event2003 IEEE Nuclear Science Symposium Conference Record - Nuclear Science Symposium, Medical Imaging Conference - Portland, OR, United States
Duration: Oct 19 2003Oct 25 2003

Other

Other2003 IEEE Nuclear Science Symposium Conference Record - Nuclear Science Symposium, Medical Imaging Conference
CountryUnited States
CityPortland, OR
Period10/19/0310/25/03

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ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Baldazzi, G., Bernardi, T., Bollini, D., Califano, G., Calzolaio, L., Gambaccini, M., Gombia, M., Pancaldi, G., Roma, L., Rossi, P. L., Sarnelli, A., Taibi, A., Tuffanelli, A., & Zuffa, M. (2003). Comparative study of in-vivo image improvement and dose reduction with dual energy angiography. In S. D. Metzler (Ed.), IEEE Nuclear Science Symposium Conference Record (Vol. 3, pp. 2124-2127). [M6-71]