K-edge digital subtraction imaging based on a dichromatic and compact x-ray source

A. Sarnelli, A. Taibi, A. Tuffanelli, G. Baldazzi, D. Bollini, A. E. Cabal Rodriquez, M. Gombia, F. Prino, L. Ramello, E. Tomassi, M. Gambaccini

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

This work proposes a compact dichromatic imaging system for the application of the K-edge digital subtraction technique based on a conventional x-ray tube and a monochromator system. A quasi-monochromatic x-ray beam at the energy of iodine K-edge is produced by Bragg diffraction on a mosaic crystal. Two thin adjacent beams with energies that bracket the K-edge discontinuity are obtained from the diffracted beam by means of a proper collimation system. They are then detected using an array of Si detectors. A home-made phantom is used to study the image quality as a function of iodine concentration. Signal and signal-to-noise ratio analysis has also been performed. The results are compared with theoretical expectations.

Original languageEnglish
Pages (from-to)3291-3305
Number of pages15
JournalPhysics in Medicine and Biology
Volume49
Issue number14
DOIs
Publication statusPublished - Jul 21 2004

Fingerprint

x ray sources
Iodine
subtraction
Subtraction Technique
X-Rays
Imaging techniques
X rays
iodine
Monochromators
Signal-To-Noise Ratio
Imaging systems
Image quality
x ray tubes
Signal to noise ratio
Diffraction
collimation
brackets
monochromators
Detectors
Crystals

ASJC Scopus subject areas

  • Biomedical Engineering
  • Physics and Astronomy (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Sarnelli, A., Taibi, A., Tuffanelli, A., Baldazzi, G., Bollini, D., Cabal Rodriquez, A. E., ... Gambaccini, M. (2004). K-edge digital subtraction imaging based on a dichromatic and compact x-ray source. Physics in Medicine and Biology, 49(14), 3291-3305. https://doi.org/10.1088/0031-9155/49/14/019

K-edge digital subtraction imaging based on a dichromatic and compact x-ray source. / Sarnelli, A.; Taibi, A.; Tuffanelli, A.; Baldazzi, G.; Bollini, D.; Cabal Rodriquez, A. E.; Gombia, M.; Prino, F.; Ramello, L.; Tomassi, E.; Gambaccini, M.

In: Physics in Medicine and Biology, Vol. 49, No. 14, 21.07.2004, p. 3291-3305.

Research output: Contribution to journalArticle

Sarnelli, A, Taibi, A, Tuffanelli, A, Baldazzi, G, Bollini, D, Cabal Rodriquez, AE, Gombia, M, Prino, F, Ramello, L, Tomassi, E & Gambaccini, M 2004, 'K-edge digital subtraction imaging based on a dichromatic and compact x-ray source', Physics in Medicine and Biology, vol. 49, no. 14, pp. 3291-3305. https://doi.org/10.1088/0031-9155/49/14/019
Sarnelli, A. ; Taibi, A. ; Tuffanelli, A. ; Baldazzi, G. ; Bollini, D. ; Cabal Rodriquez, A. E. ; Gombia, M. ; Prino, F. ; Ramello, L. ; Tomassi, E. ; Gambaccini, M. / K-edge digital subtraction imaging based on a dichromatic and compact x-ray source. In: Physics in Medicine and Biology. 2004 ; Vol. 49, No. 14. pp. 3291-3305.
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