Radiation Oncology

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Influence of daily imaging on plan quality and normal tissue toxicity for prostate cancer radiotherapy
Radiation Oncology - Tập 12 - Trang 1-11 - 2017
Katharina Bell, Marina Heitfeld, Norbert Licht, Christian Rübe, Yvonne Dzierma
Modern radiotherapy offers various possibilities for image guided verification of patient positioning. Different clinically relevant IGRT (image guided radiotherapy) scenarios were considered with regard to their influence on dosimetric plan quality and normal tissue complication probability (NTCP). This study is based on treatment plans of 50 prostate patients. We evaluate the clinically performe... hiện toàn bộ
Intraoperative radiotherapy (IORT) combined with external beam radiotherapy (EBRT) for soft-tissue sarcomas – a retrospective evaluation of the Homburg experience in the years 1995–2007
Radiation Oncology - Tập 4 - Trang 1-6 - 2009
Marcus Niewald, Jochen Fleckenstein, Norbert Licht, Caroline Bleuzen, Christian Ruebe
To retrospectively evaluate the results after a regimen of surgery, IORT (intraoperative radiotherapy), and EBRT (external beam radiotherapy) for soft-tissue sarcomas 38 consecutive patients underwent IORT for soft-tissue sarcoma; 29 were treated for primary tumours, 9 for recurrences. There were 14 cases with liposarcomas, 8 with leiomyosarcomas, 7 with malignant fibrous histiocytomas. 27/38 tumo... hiện toàn bộ
Correction to: Retrospective analysis of fractionated intensity-modulated radiotherapy (IMRT) in the interdisciplinary management of primary optic nerve sheath meningiomas
Radiation Oncology - Tập 15 - Trang 1-2 - 2020
Franziska Eckert, Kerstin Clasen, Carina Kelbsch, Felix Tonagel, Benjamin Bender, Ghazaleh Tabatabai, Daniel Zips, Daniela Thorwarth, Bettina Frey, Gerd Becker, Helmut Wilhelm, Frank Paulsen
An amendment to this paper has been published and can be accessed via the original article.
Intrafractional dose variation and beam configuration in carbon ion radiotherapy for esophageal cancer
Radiation Oncology - Tập 11 - Trang 1-9 - 2016
M. F. Haefner, F. Sterzing, D. Krug, S. A. Koerber, O. Jaekel, J. Debus, M. M. Haertig
In carbon ion radiotherapy (CIR) for esophageal cancer, organ and target motion is a major challenge for treatment planning due to potential range deviations. This study intends to analyze the impact of intrafractional variations on dosimetric parameters and to identify favourable settings for robust treatment plans. We contoured esophageal boost volumes in different organ localizations for four p... hiện toàn bộ
A treatment planning study of proton arc therapy for para-aortic lymph node tumors: dosimetric evaluation of conventional proton therapy, proton arc therapy, and intensity modulated radiotherapy
Radiation Oncology - Tập 11 - Trang 1-10 - 2016
Jeong-Eun Rah, Gwe-Ya Kim, Do Hoon Oh, Tae Hyun Kim, Jong Won Kim, Dae Yong Kim, Sung Yong Park, Dongho Shin
The purpose of this study is to evaluate the dosimetric benefits of a proton arc technique for treating tumors of the para-aortic lymph nodes (PALN). In nine patients, a proton arc therapy (PAT) technique was compared with intensity modulated radiation therapy (IMRT) and proton beam therapy (PBT) techniques with respect to the planning target volume (PTV) and organs at risk (OAR). PTV coverage, co... hiện toàn bộ
mARC vs. IMRT radiotherapy of the prostate with flat and flattening-filter-free beam energies
Radiation Oncology - Tập 9 - Trang 1-8 - 2014
Yvonne Dzierma, Katharina Bell, Jan Palm, Frank Nuesken, Norbert Licht, Christian Rübe
There as yet exists no systematic planning study investigating the novel mARC rotational radiotherapy technique, which is conceptually different from VMAT. We therefore present a planning study for prostate cancer, comparing mARC with IMRT treatment at the same linear accelerator equipped with flat and flattening-filter-free (FFF) photon energies. We retrospectively re-contoured and re-planned tre... hiện toàn bộ
To gate or not to gate - dosimetric evaluation comparing Gated vs. ITV-based methodologies in stereotactic ablative body radiotherapy (SABR) treatment of lung cancer
Radiation Oncology - - 2016
Joshua Kim, Qixue Wu, Bo Zhao, Ning Wen, Munther Ajlouni, Benjamin Movsas, Indrin J. Chetty
Comparisons of different neoadjuvant chemotherapy regimens with or without stereotactic body radiation therapy for borderline resectable pancreatic cancer: study protocol of a prospective, randomized phase II trial (BRPCNCC-1)
Radiation Oncology - Tập 14 - Trang 1-8 - 2019
Suizhi Gao, Xiaofei Zhu, Xiaohan Shi, Kai Cao, Yun Bian, Hui Jiang, Kaixuan Wang, Shiwei Guo, Huojun Zhang, Gang Jin
Few patients with pancreatic cancer may be candidates for immediate surgical resection at the initial diagnosis. Even if patients with borderline resectable pancreatic cancer (BRPC), micrometastases may occur before surgery. Therefore, neoadjuvant therapy is vital for improved survival, which has been confirmed in previous studies that neoadjuvant chemotherapy with or without radiotherapy provides... hiện toàn bộ
Regression models for predicting physical and EQD2 plan parameters of two methods of hybrid planning for stage III NSCLC
Radiation Oncology - Tập 16 - Trang 1-13 - 2021
Hao Wang, Yongkang Zhou, Wutian Gan, Hua Chen, Ying Huang, Yanhua Duan, Aihui Feng, Yan Shao, Hengle Gu, Qing Kong, Zhiyong Xu
To establish regression models of physical and equivalent dose in 2 Gy per fraction (EQD2) plan parameters of two kinds of hybrid planning for stage III NSCLC. Two kinds of hybrid plans named conventional fraction radiotherapy & stereotactic body radiotherapy (C&S) and conventional fraction radiotherapy & simultaneous integrated boost (C&SIB) were retrospectively made for 20 patients with stage II... hiện toàn bộ
MiR-34a is up-regulated in response to low dose, low energy X-ray induced DNA damage in breast cells
Radiation Oncology - - 2013
Luiza Stankevicins, Ana Paula Almeida da Silva, Flavia Ventura dos Passos, Evelin dos Santos Ferreira, Maria Cecilia Menks Ribeiro, Mariano G David, Evandro J Pires, Samara Cristina Ferreira-Machado, Yegor Vassetzky, Carlos Eduardo de Almeida, Claudia Vitoria de Moura Gallo
MicroRNAs are non-coding RNAs involved in the regulation of gene expression including DNA damage responses. Low doses of low energy X-ray radiation, similar to those used in mammographic exams, has been described to be genotoxic. In the present work we investigated the expression of miR-34a; a well described p53-regulated miRNA implicated in cell responses to X-ray irradiation at low doses. Non-ca... hiện toàn bộ
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