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Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology

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https://www.readbyqxmd.com/read/29784452/regulation-of-the-oxidative-balance-with-coenzyme-q10-sensitizes-human-glioblastoma-cells-to-radiation-and-temozolomide
#1
Javier Frontiñán-Rubio, Raquel María Santiago-Mora, Consuelo María Nieva-Velasco, Gustavo Ferrín, Alicia Martínez-González, María Victoria Gómez, María Moreno, Julia Ariza, Eva Lozano, Jacinto Arjona-Gutiérrez, Antonio Gil-Agudo, Manuel De la Mata, Milica Pesic, Juan Ramón Peinado, José M Villalba, Luis Pérez-Romasanta, Víctor M Pérez-García, Francisco J Alcaín, Mario Durán-Prado
OBJECTIVES: To investigate how the modulation of the oxidative balance affects cytotoxic therapies in glioblastoma, in vitro. MATERIAL AND METHODS: Human glioblastoma U251 and T98 cells and normal astrocytes C8D1A were loaded with coenzyme Q10 (CoQ). Mitochondrial superoxide ion (O2 - ) and H2 O2 were measured by fluorescence microscopy. OXPHOS performance was assessed in U251 cells with an oxytherm Clark-type electrode. Radio- and chemotherapy cytotoxicity was assessed by immunostaining of γH2AX (24 h), annexin V and nuclei morphology, at short (72 h) and long (15 d) time...
May 18, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29784451/randomized-trial-comparing-two-methods-of-re-irradiation-after-salvage-surgery-in-head-and-neck-squamous-cell-carcinoma-once-daily-split-course-radiotherapy-with-concomitant-chemotherapy-or-twice-daily-radiotherapy-with-cetuximab
#2
Yungan Tao, Laura Faivre, Anne Laprie, Pierre Boisselier, Christophe Ferron, Guy Michel Jung, Séverine Racadot, Bernard Gery, Caroline Even, Ingrid Breuskin, Jean Bourhis, François Janot
BACKGROUND: A previous randomized trial in recurrent Head and Neck squamous-cell carcinoma (HNSCC) has shown re-irradiation combined with chemotherapy after salvage surgery significantly improved disease-free survival (DFS). The objective of this randomized trial was to compare two methods of re-irradiation in terms of toxicity and survival. PATIENTS AND METHODS: Patients with recurrence/second primary in previously irradiated area were randomly allocated to receive either 60 Gy over 11 weeks with concomitant 5FU - hydroxyurea (VP-arm), or 60 Gy (1...
May 18, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29784450/physician-assessed-and-patient-reported-urinary-morbidity-after-radio-chemotherapy-and-image-guided-adaptive-brachytherapy-for-locally-advanced-cervical-cancer
#3
Lars Fokdal, Richard Pötter, Kathrin Kirchheiner, Jacob Chr Lindegaard, Nina Boje Kibsgaard Jensen, Christian Kirisits, Cyrus Chargari, Umesh Mahantshetty, Ina Maria Jürgenliemk-Schulz, Barbara Segedin, Peter Hoskin, Kari Tanderup
BACKGROUND AND PURPOSE: The EMBRACE study is a prospective multi-institutional study on MRI guided adaptive brachytherapy (IGABT) in locally advanced cervix cancer (LACC). This analysis describes early to late urinary morbidity assessed by physicians and patients (PRO). MATERIAL AND METHODS: A total of 1176 patients were analysed. Median follow up (FU) was 27 (1-83) months. Morbidity (CTCAE v.3) and PRO (EORTC QLQ-C30&CX24) was prospectively assessed at baseline (BL), and during FU...
May 18, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29784449/a-radiosensitivity-gene-signature-and-pd-l1-predict-the-clinical-outcomes-of-patients-with-lower-grade-glioma-in-tcga
#4
Bum-Sup Jang, In Ah Kim
PURPOSE: Identifying predictive factors for the clinical outcome of patients with lower grade gliomas following radiotherapy could help optimize patient treatments. Here, we investigate the predictive efficacy of both a previously identified "31-gene signature" and programmed death ligand-1 (PD-L1) expression. MATERIAL AND METHODS: We identified 511 patients with lower grade glioma (Grade 2 and 3) in The Cancer Genome Atlas dataset and divided them into two clusters: radiosensitive (RS) and radioresistant (RR)...
May 18, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29779918/tracking-tumor-biology-with-radiomics-a-systematic-review-utilizing-a-radiomics-quality-score
#5
REVIEW
Sebastian Sanduleanu, Henry C Woodruff, Evelyn E C de Jong, Janna E van Timmeren, Arthur Jochems, Ludwig Dubois, Philippe Lambin
INTRODUCTION: In this review we describe recent developments in the field of radiomics along with current relevant literature linking it to tumor biology. We furthermore explore the methodologic quality of these studies with our in-house radiomics quality scoring (RQS) tool. Finally, we offer our vision on necessary future steps for the development of stable radiomic features and their links to tumor biology. METHODS: Two authors (S.S. and H.W.) independently performed a thorough systematic literature search and outcome extraction to identify relevant studies published in MEDLINE/PubMed (National Center for Biotechnology Information, NCBI), EMBASE (Ovid) and Web of Science (WoS)...
May 18, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29779919/radiation-dose-constraints-for-organs-at-risk-in-neuro-oncology-the-european-particle-therapy-network-consensus
#6
REVIEW
Maarten Lambrecht, Daniëlle B P Eekers, Claire Alapetite, Neil G Burnet, Valentin Calugaru, Ida E M Coremans, Piero Fossati, Morten Høyer, Johannes A Langendijk, Alejandra Méndez Romero, Frank Paulsen, Ana Perpar, Laurette Renard, Dirk de Ruysscher, Beate Timmermann, Pavel Vitek, Damien C Weber, Hiske L van der Weide, Gillian A Whitfield, Ruud Wiggenraad, Erik Roelofs, Petra Witt Nyström, Esther G C Troost
PURPOSE: For unbiased comparison of different radiation modalities and techniques, consensus on delineation of radiation sensitive organs at risk (OARs) and on their dose constraints is warranted. Following the publication of a digital, online atlas for OAR delineation in neuro-oncology by the same group, we assessed the brain OAR-dose constraints in a follow-up study. METHODS: We performed a comprehensive search to identify the current papers on OAR dose constraints for normofractionated photon and particle therapy in PubMed, Ovid Medline, Cochrane Library, Embase and Web of Science...
May 17, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29778486/preoperative-radiotherapy-or-chemoradiotherapy-in-rectal-cancer-is-survival-improved-an-update-of-the-nordic-larc-study-in-non-resectable-cancers
#7
Morten Brændengen, Bengt Glimelius
The randomized "Nordic" LARC study compared preoperative long-course radiotherapy alone (RT) or with chemotherapy (CRT) in the most locally advanced/ugly rectal cancers. Despite significantly better local control in the CRT group, no overall survival benefit was seen after 10 years follow-up. The relations between local control and survival are discussed.
May 16, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29776675/risk-factors-for-near-miss-events-and-safety-incidents-in-pediatric-radiation-therapy
#8
Nimrah Baig, Jiangxia Wang, Shereef Elnahal, Todd McNutt, Jean Wright, Theodore DeWeese, Stephanie Terezakis
BACKGROUND AND PURPOSE: Factors contributing to safety- or quality-related incidents (e.g. variances) in children are unknown. We identified clinical and RT treatment variables associated with risk for variances in a pediatric cohort. MATERIALS AND METHODS: Using our institution's incident learning system, 81 patients age ≤21 years old who experienced variances were compared to 191 pediatric patients without variances. Clinical and RT treatment variables were evaluated as potential predictors for variances using univariate and multivariate analyses...
May 15, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29773442/treatment-related-toxicity-in-men-who-received-intensity-modulated-versus-3d-conformal-radiotherapy-after-radical-prostatectomy-a-national-population-based-study
#9
Arunan Sujenthiran, Julie Nossiter, Matthew Parry, Susan C Charman, Paul J Cathcart, Jan van der Meulen, Noel W Clarke, Heather Payne, Ajay Aggarwal
BACKGROUND AND PURPOSE: In the post-prostatectomy setting the value of Intensity-modulated (IMRT) relative to 3D-conformal radiotherapy (3D-CRT) in reducing toxicity remains unclear. We compared genitourinary (GU) and gastrointestinal (GI) toxicity after post-prostatectomy IMRT or 3D-CRT. MATERIALS AND METHODS: A population-based study of all patients treated with post-prostatectomy 3D-CRT (n = 2422) and IMRT (n = 603) was conducted between January 1 2010 and December 31 2013 in the English National Health Service...
May 14, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29764692/combined-high-dose-rate-brachytherapy-and-external-beam-radiotherapy-for-clinically-localised-prostate-cancer
#10
Iosif Strouthos, Georgios Chatzikonstantinou, Nikolaos Zamboglou, Natasa Milickovic, Sokratis Papaioannou, Dimitra Bon, Constantinos Zamboglou, Claus Rödel, Dimos Baltas, Nikolaos Tselis
PURPOSE: To report the clinical outcomes and treatment-related toxicities after combined high-dose-rate (HDR) brachytherapy (BRT) with external beam radiotherapy (EBRT) for patients with clinically localised high-risk prostate cancer. MATERIAL AND METHODS: Between 2008 and 2012, three hundred and three consecutive patients with organ-confined high-risk prostate cancer were treated with definitive radiotherapy consisting of HDR-BRT followed by supplemental EBRT. The transrectal 3D-ultrasound-based HDR-BRT boost consisted of two single-fraction implants of 10...
May 12, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29759683/sbrt-for-pancreatic-cancer-in-regard-of-bohoudi-et-al
#11
LETTER
Omar Bohoudi, Anna M Bruynzeel, Suresh Senan, Johan P Cuijpers, Berend J Slotman, Frank J Lagerwaard, Miguel A Palacios
No abstract text is available yet for this article.
May 11, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29754859/overall-survival-after-stereotactic-radiotherapy-or-surgical-metastasectomy-in-oligometastatic-renal-cell-carcinoma-patients-treated-at-two-swedish-centres-2005-2014
#12
M Stenman, G Sinclair, P Paavola, P Wersäll, U Harmenberg, M Lindskog
BACKGROUND AND PURPOSE: Investigate effects of stereotactic radiotherapy (SRT) or surgical metastasectomy (SM) on overall survival (OS) in metastatic renal cell carcinoma (mRCC) in the era of targeted agents (TA). MATERIAL AND METHODS: mRCC patients (n = 117) treated with SRT (n = 57), SM (n = 30) or both modalities sequentially (n = 30) at two oncological centres in Sweden in 2005-2014 were retrospectively included. Median follow-up (mFU) was 63 months...
May 10, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29753551/development-of-quality-indicators-to-monitor-radiotherapy-care-for-men-with-prostate-cancer-a-modified-delphi-method
#13
Ellie Tsiamis, Jeremy Millar, Siddhartha Baxi, Martin Borg, Paolo De Ieso, Hany Elsaleh, Farshad Foroudi, Braden Higgs, Tanya Holt, Jarad Martin, Kim Moretti, David Pryor, Marketa Skala, Sue Evans
BACKGROUND AND PURPOSE: Quality indicators (QIs) have been developed for many aspects of prostate cancer care, but are under-developed with regard to radiotherapy treatment. We aimed to develop a valid, relevant and feasible set of core QIs to measure quality of radiotherapy care in men with prostate cancer. MATERIALS AND METHODS: We used a RAND-modified Delphi process to select QIs that were regarded as both important and feasible measures of quality radiotherapy care...
May 9, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29753550/rescue-procedure-for-an-electrical-storm-using-robotic-non-invasive-cardiac-radio-ablation
#14
Raphaël Jumeau, Mahmut Ozsahin, Juerg Schwitter, Véronique Vallet, Frédéric Duclos, Michele Zeverino, Raphaël Moeckli, Etienne Pruvot, Jean Bourhis
Stereotactic body radiotherapy (SBRT) is an emerging non-invasive treatment in the management of ventricular tachycardia (VT). We report here an intensive care patient suffering from an electrical storm due to incessant VT, unresponsive to catheter ablation and anti-arrhythmic drugs, showing an immediate and durable response to electrophysiology-guided cardiac SBRT.
May 9, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29753549/respiratory-motion-resolved-self-gated-4d-mri-using-rotating-cartesian-k-space-rock-initial-clinical-experience-on-an-mri-guided-radiotherapy-system
#15
Fei Han, Ziwu Zhou, Dongsu Du, Yu Gao, Shams Rashid, Minsong Cao, Narek Shaverdian, John V Hegde, Michael Steinberg, Percy Lee, Ann Raldow, Daniel A Low, Ke Sheng, Yingli Yang, Peng Hu
PURPOSE: To optimize and evaluate the respiratory motion-resolved, self-gated 4D-MRI using Rotating Cartesian K-space (ROCK-4D-MRI) method in a 0.35 T MRI-guided radiotherapy (MRgRT) system. METHODS AND MATERIALS: The study included seven patients with abdominal tumors treated on the MRgRT system. ROCK-4D-MRI and 2D-CINE, was performed immediately after one of the treatment fractions. Motion quantification based on 4D-MRI was compared with those based on 2D-CINE...
May 9, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29747872/early-ultrasonographic-tumor-regression-after-linear-accelerator-stereotactic-fractionated-photon-radiotherapy-of-choroidal-melanoma-as-a-predictor-for-metastatic-spread
#16
Christoph Mitsch, Martin Zehetmayer, Andreas Gleiss, Dietmar Georg, Karin Dieckmann, Richard Pötter, Ramzi Sayegh, Ursula Schmidt-Erfurth, Roman Dunavoelgyi
BACKGROUND AND PURPOSE: During extended follow-up (of up to 15 years), approximately fifty percent of patients with choroidal melanoma will develop metastatic disease and eventually die. Thus, continuing research on prognostic factors, early detection and treatment is necessary. Height regression rates both after plaque brachytherapy and proton beam irradiation have been shown to have prognostic value. The purpose of this study was to analyze the influence of early tumor regression rate after treatment of choroidal melanoma with LINAC stereotactic fractionated radiotherapy (SFRT) as an independent risk factor for metastasis...
May 8, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29747874/is-prophylactic-cranial-irradiation-indicated-for-patients-with-extensive-stage-small-cell-lung-cancer-with-a-complete-response-to-first-line-treatment
#17
Ryoko Suzuki, Ritsuko Komaki
Prophylactic cranial irradiation (PCI) has been considered standard of care for patients with limited-stage small-cell lung cancer who achieve complete response to definitive treatment after a meta-analysis revealed its favorable effects on survival. In a European trial, PCI was also shown to confer a survival advantage for patients with extensive-stage (ES) SCLC who experienced any positive response after initial chemotherapy, leading to PCI also being considered a standard treatment for these patients as well...
May 7, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29747873/assessment-of-image-quality-of-a-radiotherapy-specific-hardware-solution-for-pet-mri-in-head-and-neck-cancer-patients
#18
René M Winter, Sara Leibfarth, Holger Schmidt, Kerstin Zwirner, David Mönnich, Stefan Welz, Nina F Schwenzer, Christian la Fougère, Konstantin Nikolaou, Sergios Gatidis, Daniel Zips, Daniela Thorwarth
BACKGROUND AND PURPOSE: Functional PET/MRI has great potential to improve radiotherapy planning (RTP). However, data integration requires imaging with radiotherapy-specific patient positioning. Here, we investigated the feasibility and image quality of radiotherapy-customized PET/MRI in head-and-neck cancer (HNC) patients using a dedicated hardware setup. MATERIAL AND METHODS: Ten HNC patients were examined with simultaneous PET/MRI before treatment, with radiotherapy and diagnostic scan setup, respectively...
May 7, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29747871/is-prophylactic-cranial-irradiation-pci-needed-in-patients-with-extensive-stage-small-cell-lung-cancer-showing-complete-response-to-first-line-chemotherapy
#19
REVIEW
Kaname Nosaki, Takashi Seto, Mototsugu Shimokawa, Toshiaki Takahashi, Nobuyuki Yamamoto
Throughout the entire world, prophylactic cranial irradiation (PCI) is the standard care for patients with small cell lung cancer (SCLC) in whom a favorable therapeutic effect is achieved after front-line treatment, regardless of whether the disease is in the limited stage or extensive stage. In the EORTC study, PCI was shown to confer a survival benefit for patients with extensive-stage small cell lung cancer (ES-SCLC) who experienced any positive response after initial chemotherapy. However, the Japan study failed to confirm a survival benefit...
May 7, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29739713/volumetric-modulated-arc-therapy-of-head-and-neck-cancer-on-a-fast-rotating-o-ring-linac-plan-quality-and-delivery-time-comparison-with-a-c-arm-linac
#20
Steven Michiels, Kenneth Poels, Wouter Crijns, Laurence Delombaerde, Robin De Roover, Bianca Vanstraelen, Karin Haustermans, Sandra Nuyts, Tom Depuydt
BACKGROUND AND PURPOSE: Linac improvements in gantry speed, leaf speed and dose rate may increase the time-efficiency of volumetric modulated arc therapy (VMAT) delivery. The plan quality achievable with faster VMAT however remains to be investigated. In this study, a fast-rotating O-ring linac with fast-moving leaves is compared with a C-arm linac in terms of plan quality and delivery time for VMAT of head-and-neck cancer (HNC). MATERIAL AND METHODS: For 30 patients with HNC, treatment planning was performed using dual-arc (HA2) and triple-arc (HA3) VMAT on a Halcyon fast-rotating O-ring linac and using dual-arc VMAT on a TrueBeam C-arm linac (TB2)...
May 5, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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