Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Jörg Wulff"'
Autor:
Carles Gomà, Katrin Henkner, Oliver Jäkel, Stefano Lorentini, Giuseppe Magro, Alfredo Mirandola, Lorenzo Placidi, Michele Togno, Marie Vidal, Gloria Vilches-Freixas, Jörg Wulff, Sairos Safai
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 31, Iss , Pp 100621- (2024)
Proton therapy (PT) is an advancing radiotherapy modality increasingly integrated into clinical settings, transitioning from research facilities to hospital environments. A critical aspect of the commissioning of a proton pencil beam scanning deliver
Externí odkaz:
https://doaj.org/article/c29195f1f8194c0b9baddb267057a973
Autor:
Fabian Kugel, Jörg Wulff, Christian Bäumer, Martin Janson, Jana Kretschmer, Leonie Brodbek, Carina Behrends, Nico Verbeek, Hui Khee Looe, Björn Poppe, Beate Timmermann
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 33, Iss 4, Pp 529-541 (2023)
Purpose: The primary fluence of a proton pencil beam exiting the accelerator is enveloped by a region of secondaries, commonly called “spray”. Although small in magnitude, this spray may affect dose distributions in pencil beam scanning mode e.g.
Externí odkaz:
https://doaj.org/article/cc5c1c5288d94284b0365f902555700d
Autor:
Marijke De Saint-Hubert, Guillaume Boissonnat, Uwe Schneider, Christian Bäumer, Nico Verbeek, Johannes Esser, Jörg Wulff, Florian Stuckmann, Finja Suesselbeck, Racell Nabha, Jérémie Dabin, Fabiano Vasi, Stephan Radonic, Miguel Rodriguez, Anne Catherine Simon, Neige Journy, Beate Timmermann, Isabelle Thierry-Chef, Lorenzo Brualla
Publikováno v:
Frontiers in Oncology, Vol 13 (2023)
BackgroundIn radiotherapy, especially when treating children, minimising exposure of healthy tissue can prevent the development of adverse outcomes, including second cancers. In this study we propose a validated Monte Carlo framework to evaluate the
Externí odkaz:
https://doaj.org/article/e255b0da705e4a23b3ffba2c6a280d1e
Autor:
Dalia Ahmad Khalil, Jörg Wulff, Danny Jazmati, Dirk Geismar, Christian Bäumer, Paul-Heinz Kramer, Theresa Steinmeier, Stefanie Schulze Schleithoff, Stephan Tschirdewahn, Boris Hadaschik, Beate Timmermann
Publikováno v:
Current Oncology, Vol 30, Iss 1, Pp 758-768 (2023)
Background: The aim of this study is to examine the dosimetric influence of endorectal balloons (ERB) on rectal sparing in prostate cancer patients with implanted hydrogel rectum spacers treated with dose-escalated or hypofractionated intensity-modul
Externí odkaz:
https://doaj.org/article/82748379d39740a7a5d9783a25d237d7
Autor:
Christian Hahn, Lena Heuchel, Jakob Ödén, Erik Traneus, Jörg Wulff, Sandija Plaude, Beate Timmermann, Christian Bäumer, Armin Lühr
Publikováno v:
Radiation Oncology, Vol 17, Iss 1, Pp 1-13 (2022)
Abstract Background To introduce and compare multiple biological effectiveness guided (BG) proton plan optimization strategies minimizing variable relative biological effectiveness (RBE) induced dose burden in organs at risk (OAR) while maintaining p
Externí odkaz:
https://doaj.org/article/056bff927b684bc0866ed3d022a5ce49
Autor:
Dalia Ahmad Khalil, Danny Jazmati, Dirk Geismar, Jörg Wulff, Christian Bäumer, Paul Heinz Kramer, Theresa Steinmeier, Stefanie Schulze Schleitthoff, Sandija Plaude, Martin Bischoff, Stephan Tschirdewahn, Boris Hadaschik, Beate Timmermann
Publikováno v:
Radiation Oncology, Vol 17, Iss 1, Pp 1-12 (2022)
Abstract Purpose To examine the dosimetric feasibility of hypofractionated/dose escalated radiation therapy in patients with localized prostate carcinoma using simultaneous integrated boost intensity-modulated proton beam therapy (SIB-IMPT) in absenc
Externí odkaz:
https://doaj.org/article/28b4f3d01a0a44228e096e039e408cfb
Autor:
Hilda Siregar, Christian Bäumer, Oliver Blanck, Mark Chan, Erik Engwall, Sandija Plaude, Bernhard Spaan, Beate Timmermann, Jörg Wulff
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 32, Iss 1, Pp 63-73 (2022)
Proton fields delivered by the active scanning technique can be interfered with the intrafractional motion. This in-silico study seeks to mitigate the dosimetric impacts of motion artifacts, especially its interplay with the time-modulated dose deliv
Externí odkaz:
https://doaj.org/article/e2e7d469172d41eb84fa18e0e9595d12
Autor:
Marijke De Saint-Hubert, Nico Verbeek, Christian Bäumer, Johannes Esser, Jörg Wulff, Racell Nabha, Olivier Van Hoey, Jérémie Dabin, Florian Stuckmann, Fabiano Vasi, Stephan Radonic, Guillaume Boissonnat, Uwe Schneider, Miguel Rodriguez, Beate Timmermann, Isabelle Thierry-Chef, Lorenzo Brualla
Publikováno v:
Frontiers in Oncology, Vol 12 (2022)
Proton therapy enables to deliver highly conformed dose distributions owing to the characteristic Bragg peak and the finite range of protons. However, during proton therapy, secondary neutrons are created, which can travel long distances and deposit
Externí odkaz:
https://doaj.org/article/b96d7168c3ad45729791f4c5243c88ac
Autor:
Christian Bäumer, Sandija Plaude, Dalia Ahmad Khalil, Dirk Geismar, Paul-Heinz Kramer, Kevin Kröninger, Christian Nitsch, Jörg Wulff, Beate Timmermann
Publikováno v:
Frontiers in Oncology, Vol 11 (2021)
Proton therapy makes use of the favorable depth-dose distribution with its characteristic Bragg peak to spare normal tissue distal of the target volume. A steep dose gradient would be desired in lateral dimensions, too. The widespread spot scanning d
Externí odkaz:
https://doaj.org/article/9dce2fdfd8df47d2b8fbb4e7454f234a
Autor:
Jörg Wulff, Benjamin Koska, Martin Janson, Christian Bäumer, Andrea Denker, Dirk Geismar, Johannes Gollrad, Beate Timmermann, Jens Heufelder
Publikováno v:
Medical Physics. 49:3481-3488
Purpose To evaluate the impact of beam quality in terms of distal fall off DFO, 90 10 and lateral penumbra LP, 80 20 of single beam ocular proton therapy OPT and to derive resulting ideal requirements for future systems. Methods Nine different beam m