A new statistical reconstruction method for the computed tomography using an X-ray tube with flying focal spot
Authors:
- Robert Cierniak,
- Piotr Pluta,
- Marek Waligóra,
- Zdzisław Szymański,
- Konrad Grzanek,
- Filip Pałka,
- Vincenzo Piuri
Abstract
This paper presents a new image reconstruction method for spiral cone- beam tomography scanners in which an X-ray tube with a flying focal spot is used. The method is based on principles related to the statistical model-based iterative reconstruction (MBIR) methodology. The proposed approach is a continuous-to-continuous data model approach, and the forward model is formulated as a shift-invariant system. This allows for avoiding a nutating reconstruction-based approach, e.g. the advanced single slice rebinning methodology (ASSR) that is usually applied in computed tomography (CT) scanners with X-ray tubes with a flying focal spot. In turn, the proposed approach allows for significantly accelerating the reconstruction processing and, generally, for greatly simplifying the entire reconstruction procedure. Additionally, it improves the quality of the reconstructed images in comparison to the traditional algorithms, as confirmed by extensive simulations. It is worth noting that the main purpose of introducing statistical reconstruction methods to medical CT scanners is the reduction of the impact of measurement noise on the quality of tomography images and, consequently, the dose reduction of X-ray radiation absorbed by a patient. A series of computer simulations followed by doctor’s assessments have been performed, which indicate how great a reduction of the absorbed dose can be achieved using the reconstruction approach presented here.
- Record ID
- CUTa49c62746ef344749d61bb3a930a8399
- Publication categories
- ;
- Author
- Journal series
- Journal of Artificial Intelligence and Soft Computing Research, ISSN 2083-2567, e-ISSN 2449-6499
- Issue year
- 2021
- Vol
- 11
- No
- 4
- Pages
- 271-286
- Other elements of collation
- fot.; rys.; tab.; Bibliografia (na s.) - 284-285; Bibliografia (liczba pozycji) - 22; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 11, No. 4
- Keywords in English
- computed tomography, iterative statistical reconstruction method, flying focal spot
- DOI
- DOI:10.2478/jaiscr-2021-0016 Opening in a new tab
- URL
- https://sciendo.com/de/article/10.2478/jaiscr-2021-0016 Opening in a new tab
- Related project
- Implementacja statystycznego algorytmu rekonstrukcyjnego dla stacji diagnostycznej aparatu tomografii komputerowej charakteryzującego się zmniejszoną dawką promieniowania pochłoniętą przez pacjenta w trakcie badania. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTa49c62746ef344749d61bb3a930a8399/
- URN
urn:pkr-prod:CUTa49c62746ef344749d61bb3a930a8399
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.