Quantitative Determination of a Contrast Agent by Multispiral Computed Tomography and Targeted Absorption Spectroscopy in the K-Jump Region of X-Ray Photoabsorption

We demonstrate a possibility of a radical reduction in an effective radiation dose when monitoring the content of a contrast agent in an object with X-ray absorption spectroscopy (XAS) using survey data from multispiral computed tomography (CT). A directional beam passes through the region of intere...

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Bibliographic Details
Published in:Bulletin of the Lebedev Physics Institute 2024-03, Vol.51 (3), p.106-110
Main Authors: Turyanskiy, A. G., Akhadov, T. A., Lin, Kyaw Zaw, Senkov, V. M., Ziyatdinova, M. Z., Ublinskii, M. V., Dmitrienko, D. M., Kupriyanov, M. Yu, Aksenova, M. M.
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Computed tomography
Contrast agents
Photoabsorption
Physics
Physics and Astronomy
Radiation dosage
X ray absorption
Xenon
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Summary:We demonstrate a possibility of a radical reduction in an effective radiation dose when monitoring the content of a contrast agent in an object with X-ray absorption spectroscopy (XAS) using survey data from multispiral computed tomography (CT). A directional beam passes through the region of interest, the 3D coordinates of which are determined with CT, and the transmission spectrum is recorded in the range of the K -jump in the X-ray photoabsorption of the contrast agent. The unambiguity of the obtained results is confirmed by independent measurements of the xenon content in the phantom using CT and XAS methods, as well as by direct manometric control of gas volumes.
ISSN:1068-3356
1934-838X
DOI:10.3103/S1068335623602303