Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Stefan, Kuchenbecker"'
Autor:
Stefan Kuchenbecker, Sebastian Faby, David Simons, Heinz Peter Schlemmer, Stefan Sawall, Marc Kachelrieß, Michael Lell
Publikováno v:
Medical Physics. 42:4349-4366
Purpose: To study the performance of different dual energy computed tomography (DECT) techniques, which are available today, and future multi energy CT (MECT) employing novel photon counting detectors in an image-based material decomposition task. Me
Publikováno v:
Medical Physics. 42:1023-1036
Purpose: Dual Energy CT (DECT) provides so-called monoenergetic images based on a linear combination of the original polychromatic images. At certain patient-specific energy levels, corresponding to certain patient- and slice-dependent linear combina
Autor:
Tim, Hilgenfeld, Marcel, Prager, Franz Sebastian, Schwindling, Alexander, Heil, Stefan, Kuchenbecker, Peter, Rammelsberg, Martin, Bendszus, Sabine, Heiland
Publikováno v:
European journal of oral implantology. 9(3)
MRI allows radiation-free imaging of the head and neck area. However, implant-supported prostheses may severely impair image quality due to artefacts. Therefore, identification of preferable material compositions for implants and supported prostheses
Autor:
Sebastian, Faby, Stefan, Kuchenbecker, Stefan, Sawall, David, Simons, Heinz-Peter, Schlemmer, Michael, Lell, Marc, Kachelrieß
Publikováno v:
Medical physics. 42(7)
To study the performance of different dual energy computed tomography (DECT) techniques, which are available today, and future multi energy CT (MECT) employing novel photon counting detectors in an image-based material decomposition task.The material
Autor:
Michael Knaup, Sergej Lebedev, Stefan Kuchenbecker, Marc Kachelrieß, Sebastian Faby, Stefan Sawall
Publikováno v:
SPIE Proceedings.
The reconstruction of CT images with low noise and highest spatial resolution is a challenging task. Usually, a trade-off between at least these two demands has to be found or several reconstructions with mutually exclusive properties, i.e. either lo
Publikováno v:
Medical physics. 42(2)
Dual Energy CT (DECT) provides so-called monoenergetic images based on a linear combination of the original polychromatic images. At certain patient-specific energy levels, corresponding to certain patient- and slice-dependent linear combination weig
Autor:
J. Günter Grossmann, Stefan Kuchenbecker, Florian Sterzing, Marc Kachelrieß, Esther Bär, A. Schwahofer
Publikováno v:
Zeitschrift fur medizinische Physik. 25(4)
Metal artifacts in computed tomography CT images are one of the main problems in radiation oncology as they introduce uncertainties to target and organ at risk delineation as well as dose calculation. This study is devoted to metal artifact reduction
Autor:
Sebastian Faby, Michael Lell, Heinz Peter Schlemmer, David Simons, Marc Kachelrieß, Stefan Kuchenbecker
Publikováno v:
SPIE Proceedings.
Possible advantages of energy-selective photon counting detectors compared to dual energy CT shall be evaluated in the case of a typical dual energy application: Image-based material decomposition into an iodine and a water material image. Apart from
Publikováno v:
Biomedical Physics & Engineering Express. 1:025206
Metal artifacts in computed tomography (CT) images can cause important errors in dose calculation. Algorithms developed to reduce these artifacts could improve these images but also introduce a bias in tissues surrounding metallic implants. The purpo
Autor:
David Simons, Marc Kachelrieß, M. Uhrig, Francesco Pisana, Stefan Kuchenbecker, Heinz Peter Schlemmer
Publikováno v:
Cancer Imaging
Background Dual energy CT (DECT) has proven its potential in oncological imaging. Considering the repeated follow-up examinations, radiation dose should not exceed conventional single energy CT (SECT). Comparison studies on the same scanner with a la