Zobrazeno 1 - 10
of 514
pro vyhledávání: '"Dietmar Georg"'
Autor:
Sylvia Kerschbaum-Gruber, Ava Kleinwächter, Katerina Popova, Alexandra Kneringer, Lisa-Marie Appel, Katharina Stasny, Anna Röhrer, Ana Beatriz Dias, Johannes Benedum, Lena Walch, Andreas Postl, Sandra Barna, Bernhard Kratzer, Winfried F. Pickl, Altuna Akalin, Filip Horvat, Vedran Franke, Joachim Widder, Dietmar Georg, Dea Slade
Publikováno v:
Frontiers in Immunology, Vol 15 (2024)
IntroductionPancreatic ductal adenocarcinoma (PDAC) remains a leading cause of cancer-related deaths worldwide with limited treatment options due to extensive radiation and chemotherapy resistance. Monotherapy with immune checkpoint blockade showed n
Externí odkaz:
https://doaj.org/article/3025e223cab047d6828e139b1e21af01
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
This work aimed to characterize a dedicated phantom for assessing the dose near metal implants for radiotherapy with photons and protons. A dosimetry audit phantom was redesigned to position a Gafchromic EBT-3 film within a bisected titanium pedicle
Externí odkaz:
https://doaj.org/article/d4a02aa88eca4d0f8c4c40d2df89635d
Autor:
Jacob Brunner, Lorenz Langgartner, Hannah Danhel, Wolfgang Birkfellner, Christian Richter, Dirk Wagenaar, Markus Stock, Dietmar Georg, Barbara Knäusl
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
Objective3D printing has seen use in many fields of imaging and radiation oncology, but applications in (anthropomorphic) phantoms, especially for particle therapy, are still lacking. The aim of this work was to characterize various available 3D prin
Externí odkaz:
https://doaj.org/article/23789ad4ea544b70b7bf5038b5ccc899
Autor:
Monika Clausen, Sirinya Ruangchan, Arame Sotoudegan, Andreas F. Resch, Barbara Knäusl, Hugo Palmans, Dietmar Georg
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 33, Iss 4, Pp 542-551 (2023)
Purpose: To evaluate the dosimetric accuracy for small field proton irradiation relevant for pre-clinical in vivo studies using clinical infrastructure and technology. In this context additional beam collimation and range reduction was implemented. M
Externí odkaz:
https://doaj.org/article/f7df391a5a1f4c1cbef91ef80cec9014
Publikováno v:
Radiation Oncology, Vol 18, Iss 1, Pp 1-8 (2023)
Abstract Background To evaluate a novel CBCT conversion algorithm for dose calculation implemented in a research version of a treatment planning system (TPS). Methods The algorithm was implemented in a research version of RayStation (v. 11B-DTK, RayS
Externí odkaz:
https://doaj.org/article/0b67e2bddda74334bae72684dd0dd932
Autor:
Andreas Renner, Ingo Gulyas, Martin Buschmann, Gerd Heilemann, Barbara Knäusl, Martin Heilmann, Joachim Widder, Dietmar Georg, Petra Trnková
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 30, Iss , Pp 100594- (2024)
Background and purpose: Active breathing motion management in radiotherapy consists of motion monitoring, quantification and mitigation. It is impacted by associated latencies of a few 100 ms. Artificial neural networks can successfully predict breat
Externí odkaz:
https://doaj.org/article/fa9aaba7edd447418136d83309e06cf8
Publikováno v:
International Journal of Molecular Sciences, Vol 25, Iss 11, p 6179 (2024)
In order to overcome the resistance to radiotherapy in human chondrosarcoma cells, the prevention from efficient DNA repair with a combined treatment with the DNA-dependent protein kinase catalytic subunit (DNA-PKcs) inhibitor AZD7648 was explored fo
Externí odkaz:
https://doaj.org/article/eec46a57b1e74ba891c93b724df65dc2
Autor:
Barbara Knäusl, Peter Kuess, Markus Stock, Dietmar Georg, Piero Fossati, Petra Georg, Lukas Zimmermann
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 33, Iss 2, Pp 146-154 (2023)
Background and purpose: Anatomical surveillance during ion-beam therapy is the basis for an effective tumor treatment and optimal organ at risk (OAR) sparing. Synthetic computed tomography (sCT) based on magnetic resonance imaging (MRI) can replace t
Externí odkaz:
https://doaj.org/article/987597221877400085963fe6e7ef044f
Autor:
Hermann Fuchs, Lukas Zimmermann, Niklas Reisz, Markus Zeilinger, Alexander Ableitinger, Dietmar Georg, Peter Kuess
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 33, Iss 2, Pp 135-145 (2023)
Monte Carlo (MC) simulations of X-ray image devices require splitting the simulation into two parts (i.e. the generation of x-rays and the actual imaging). The X-ray production remains unchanged for repeated imaging and can thus be stored in phase sp
Externí odkaz:
https://doaj.org/article/40bd0eada4af4b72bb2b0cd72081fbf9
Autor:
Gerd Heilemann, Martin Buschmann, Wolfgang Lechner, Vincent Dick, Franziska Eckert, Martin Heilmann, Harald Herrmann, Matthias Moll, Johannes Knoth, Stefan Konrad, Inga-Malin Simek, Christopher Thiele, Alexandru Zaharie, Dietmar Georg, Joachim Widder, Petra Trnkova
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 28, Iss , Pp 100515- (2023)
Background and purpose: Tools for auto-segmentation in radiotherapy are widely available, but guidelines for clinical implementation are missing. The goal was to develop a workflow for performance evaluation of three commercial auto-segmentation tool
Externí odkaz:
https://doaj.org/article/f30049b496ff47d2ab8927afe690f7ca