Výsledky vyhledávání - "Hansjörg Wertz"

Towards clinical implementation of ultrafast combined kV-MV CBCT for IGRT of lung cancer

Autor: Jürgen Hesser, A. Arns, Jens Fleckenstein, Hansjörg Wertz, Judit Boda-Heggemann, Dzmitry Stsepankou, Manuel Blessing, Frederik Wenz, Anna Simeonova-Chergou, Frank Lohr

Publikováno v: Strahlentherapie und Onkologie. 192:312-321

Combined kV-MV cone-beam CT (CBCT) is a promising approach to accelerate imaging for patients with lung tumors treated with deep inspiration breath-hold. During a single breath-hold (15 s), a 3D kV-MV CBCT can be acquired, thus minimizing motion arti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faec4a2d724a39079cddfb0cc5a765cc
https://doi.org/10.1007/s00066-016-0947-2

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Determination of Intrafraction Prostate Motion During External Beam Radiation Therapy With a Transperineal 4-Dimensional Ultrasound Real-Time Tracking System

Autor: Hansjörg Wertz, Sigrun Heitmann, Sandra von Swietochowski, Frank Lohr, Michael Ehmann, Dwi Seno Kuncoro Sihono, Mario Grimm, Frederik Wenz, Judit Boda-Heggemann

Purpose/Objective To determine intrafraction prostate motion during volumetric modulated arc therapy (VMAT) using transperineal ultrasound (US) real-time tracking. Methods and Materials 770 US monitoring sessions in 38 prostate cancer patients' VMAT

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dc5c53f239a68694395f98a0b0b7bfc
https://hdl.handle.net/11380/1172327

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Stereotactic ultrasound for target volume definition in a patient with prostate cancer and bilateral total hip replacement

Autor: Sabine Mai, Sigrun Heitmann, Dwi Seno Kuncoro Sihono, Frank Lohr, Michael Ehmann, Stefan Kegel, Stefan Haneder, Hansjörg Wertz, Sandra von Swietochowski, Judit Boda-Heggemann, Frederik Wenz

Publikováno v: Practical Radiation Oncology. 5:197-202

Target-volume definition for prostate cancer in patients with bilateral metal total hip replacements (THRs) is a challenge because of metal artifacts in the planning computed tomography (CT) scans. Magnetic resonance imaging (MRI) can be used for mat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6147e86f31a992d40fd0728dbca43f8f
https://doi.org/10.1016/j.prro.2014.08.008

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Bildgeführte Strahlentherapie

Autor: Judit Boda-Heggemann, Hansjörg Wertz, Frank Lohr, M Fuss, F. Wenz, Claus Belka, M Guckenberger, Ute Ganswindt, Manuel Blessing

Publikováno v: Der Radiologe. 52:213-221

Radiotherapy technology has improved rapidly over the past two decades. New imaging modalities, such as positron emission (computed) tomography (PET, PET-CT) and high-resolution morphological and functional magnetic resonance imaging (MRI) have been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b137e20248d616133ae0af01e95ecc3
https://doi.org/10.1007/s00117-011-2192-0

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Multiple breath-hold CBCT for online image guided radiotherapy of lung tumors: Simulation with a dynamic phantom and first patient data

Autor: Vibeke N. Hansen, Helen McNair, Judit Boda-Heggemann, Dzimitry Stsepankou, Manuel Blessing, Iris Löb, Hansjörg Wertz, Jens Fleckenstein, Michael Brada, Frank Lohr, Anthony Kavanagh, B. Küpper, Frederik Wenz, Mohammed Nachit

Publikováno v: Radiotherapy and Oncology. 98:309-316

Background and Purpose Computer controlled breath-hold effectively reduces organ motion for image-guided precision radiotherapy of lung tumors. However, the acquisition time of 3D cone-beam-CT (CBCT) exceeds maximum breath-hold times. We have develop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8c8907982f6dba00b6a2015d96e70da
https://doi.org/10.1016/j.radonc.2011.01.019

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