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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/28222892/fdg-uptake-in-normal-tissues-assessed-by-pet-during-treatment-has-prognostic-value-for-treatment-results-in-head-and-neck-squamous-cell-carcinomas-undergoing-radiochemotherapy
#1
Sebastian Zschaeck, Steffen Löck, Stefan Leger, Robert Haase, Anna Bandurska-Luque, Steffen Appold, Jörg Kotzerke, Daniel Zips, Christian Richter, Volker Gudziol, Andreas Schreiber, Klaus Zöphel, Michael Baumann, Mechthild Krause
BACKGROUND AND PURPOSE: Pronounced early side effects have been suggested to be a positive prognostic factor in patients undergoing chemo-radio-therapy (CRT) for head and neck squamous cell carcinomas (HNSCC). We assessed the utility of positron emission tomography (PET) during treatment to analyze the correlation of 18F-fluorodeoxyglucose (FDG) uptake in off target structures within the irradiated volume with outcome. MATERIAL AND METHODS: Two independent cohorts of patients with locally advanced HNSCC, both treated within prospective clinical imaging trials with curatively intended CRT were retrospectively analyzed...
February 17, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28202228/cross-institutional-knowledge-based-planning-kbp-implementation-and-its-performance-comparison-to-auto-planning-engine-ape
#2
Binbin Wu, Martijn Kusters, Martina Kunze-Busch, Tim Dijkema, Todd McNutt, Giuseppe Sanguineti, Karl Bzdusek, Anatoly Dritschilo, Dalong Pang
BACKGROUND AND PURPOSE: To investigate (1) whether a plan library established at one institution can be applied for another institution's knowledge-based planning (KBP); (2) the performance of cross-institutional KBP compared to Auto-Planning Engine (APE). MATERIAL AND METHODS: Radboud University Medical Center (RUMC) provided 35 oropharyngeal cancer patients (68Gy to PTV(68) and 50.3Gy to PTV(50.3)) with clinically-delivered and comparative APE plans. The Johns Hopkins University (JHU) contributed a three-dose-level plan library consisting of 179 clinically-delivered plans...
February 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28202227/phase-i-trial-of-radiation-therapy-and-sorafenib-in-unresectable-liver-metastases
#3
Rebecca B Goody, Anthony M Brade, Lisa Wang, Tim Craig, James Brierley, Robert Dinniwell, Rebecca K S Wong, Charles Cho, John Kim, Zahra Kassam, Jolie Ringash, Jennifer J Knox, Laura A Dawson
BACKGROUND AND PURPOSE: To determine maximum tolerated dose (MTD) and toxicities of sorafenib combined with stereotactic radiotherapy (SBRT) or whole liver radiotherapy (WLRT) in patients with liver metastases. MATERIAL AND METHODS: Eligible patients had unresectable liver metastases. Sorafenib dose was escalated in 2 strata: I - SBRT: effective liver volume irradiated (Veff)<80% (30-60Gy in 6 fractions); II - WLRT: Veff>80% (21.6Gy in 6 fractions). Four weeks of sorafenib, with radiotherapy during weeks 2-3, was delivered at 3 escalating dose levels (200-400mg twice daily)...
February 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28196643/radiotherapy-after-sentinel-lymph-node-biopsy-slnb-using-sienna-%C3%A2-super-paramagnetic-iron-oxide-particles-spio-prospective-study-of-tolerance-and-toxicity
#4
Youlia M Kirova, Anne Chilles, Nathalie Ly, Anne Tardivon, Severine Alran
No abstract text is available yet for this article.
February 10, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28196642/so-long-farewell-au-revoir-auf-weidersehen-in-regard-to-overgaard-radiother-oncol-2016-dec-121-3-345-347
#5
Ahmed Salem
No abstract text is available yet for this article.
February 10, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28190601/clinical-implementation-of-coverage-probability-planning-for-nodal-boosting-in-locally-advanced-cervical-cancer
#6
Anne Ramlov, Marianne S Assenholt, Maria F Jensen, Caroline Grønborg, Remi Nout, Markus Alber, Lars Fokdal, Kari Tanderup, Jacob Chr Lindegaard
PURPOSE: To implement coverage probability (CovP) for dose planning of simultaneous integrated boost (SIB) of pathologic lymph nodes in locally advanced cervical cancer (LACC). MATERIAL AND METHODS: CovP constraints for SIB of the pathological nodal target (PTV-N) with a central dose peak and a relaxed coverage at the perimeter were generated for use with the treatment planning system Eclipse: PTV-N D98 >90%, CTV-N D98 >100% and CTV-N D50 >101.5% of prescribed dose...
February 9, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28187996/pattern-of-solid-and-hematopoietic-second-malignancy-after-local-therapy-for-prostate-cancer
#7
Chenyang Wang, Christopher R King, Mitchell Kamrava, Keisuke S Iwamoto, Allen M Chen, Daniel Low, Patrick A Kupelian, Michael L Steinberg
BACKGROUND AND PURPOSE: Second malignancies (SM) after external beam radiotherapy (EBRT) or brachytherapy (BT) for prostate cancer (PCa) are rare but serious sequelae. MATERIALS AND METHODS: The Surveillance, Epidemiology, and End Results (SEER) database was used to identify men diagnosed with cT1-2N0M0 PCa between 1999 and 2005, who underwent EBRT, BT or radical prostatectomy (RP). Patients with time interval to second malignancy or follow-up shorter than five and two years were excluded for solid and hematopoietic SM analyses respectively...
February 7, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28185660/treatment-plan-optimization-and-robustness-of-106-ru-eye-plaque-brachytherapy-using-a-novel-software-tool
#8
Gerd Heilemann, Lukas Fetty, Martin Dulovits, Matthias Blaickner, Nicole Nesvacil, Dietmar Georg, Roman Dunavoelgyi
BACKGROUND AND PURPOSE: To analyze treatment plan robustness and plan optimization strategies of (106)Ru eye plaque brachytherapy using a novel software tool. MATERIALS AND METHODS: A treatment planning software was developed that allows to calculate dose-volume metrics. Plaque misplacements were simulated and evaluated with respect to the effect on tumor coverage and dose changes in critical structures. Two treatment plan optimization approaches were analyzed: (a) reducing plaque size and (b) shifting the plaque away from organs-at-risk (OAR)...
February 6, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28169043/the-value-of-adaptive-preoperative-radiotherapy-in-management-of-soft-tissue-sarcoma
#9
Colleen Dickie, Amy Parent, Anthony M Griffin, Jay Wunder, Peter Ferguson, Peter W Chung, Tim Craig, Michael Sharpe, Nathan Becker, David Shultz, Charles N Catton, Brian O'Sullivan
PURPOSE: To determine the value of preoperative adaptive radiotherapy (ART) for soft tissue sarcoma patients (STS) by modeling the dosimetric consequences of tumour volume changes (TVC) using different external beam radiotherapy techniques. METHODS AND MATERIALS: A subset of 22 STS patients from a recent trial (NCT00188175) underwent a repeat CT scan (CT2) prompted by TVC>1cm during IMRT; 14 tumours grew, 8 shrank. Conformal and conventional plans were modelled in addition to IMRT replicating original criteria from the initial planning dataset (CT1):95% PTV encompassed by 97% prescribed dose...
February 3, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28169042/nomogram-based-overall-survival-prediction-in-stereotactic-body-radiotherapy-for-oligo-metastatic-lung-disease
#10
S Tanadini-Lang, J Rieber, A R Filippi, M M Fode, J Streblow, S Adebahr, N Andratschke, O Blanck, J Boda-Heggemann, M Duma, M J Eble, I Ernst, M Flentje, S Gerum, P Hass, C Henkenberens, G Hildebrandt, D Imhoff, H Kahl, N D Klass, R Krempien, F Lohaus, C Petersen, E Schrade, T G Wendt, A Wittig, M Høyer, U Ricardi, F Sterzing, M Guckenberger
BACKGROUND: Radical local treatment of pulmonary metastases is practiced with increasing frequency due to acknowledgment and better understanding of oligo-metastatic disease. This study aimed to develop a nomogram predicting overall survival (OS) after stereotactic body radiotherapy (SBRT) for pulmonary metastases. PATIENTS AND METHODS: A multi-institutional database of 670 patients treated with SBRT for pulmonary metastases was used as training cohort. Cox regression analysis with bidirectional variable elimination was performed to identify factors to be included into the nomogram model to predict 2-year OS...
February 3, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28131548/an-orally-bioavailable-chk1-inhibitor-cct244747-sensitizes-bladder-and-head-and-neck-cancer-cell-lines-to-radiation
#11
Radhika Patel, Holly E Barker, Joan Kyula, Martin McLaughlin, Magnus T Dillon, Ulrike Schick, Hind Hafsi, Alan Thompson, Vincent Khoo, Kevin Harrington, Shane Zaidi
PURPOSE: Chk1 inhibition increases cell sensitivity to both chemotherapy and radiotherapy in several tumour types and is, therefore, a promising anti-cancer approach. Although several Chk1 inhibitors have been developed, their clinical progress has been hampered by low bioavailability and off-target toxicities. MATERIALS AND METHODS: We characterized the radiosensitizing activity of CCT244747, the first orally bioavailable Chk1 inhibitor. We used a panel of bladder and head and neck cancer cell lines and monitored the effect of combining CCT244747 with radiation both in in vitro and in vivo models...
January 25, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28129897/quantifying-radiation-dose-delivered-to-individual-shoulder-muscles-during-breast-radiotherapy
#12
David B Lipps, Sean Sachdev, Jonathan B Strauss
BACKGROUND AND PURPOSE: Radiotherapy is an effective treatment for managing breast cancer, but patients may experience shoulder morbidity after completing radiotherapy. There is a knowledge gap regarding how the inclusion of the regional lymphatics in radiation treatment regimens influence the radiation dose delivered to the underlying shoulder musculature. MATERIAL AND METHODS: Five standardized radiation treatment regimens were developed from the computed tomography (CT) scans of 11 patients: tangent fields only (T), high tangent fields (HT), T+supraclavicular fossa and axillary apex with an anterior oblique beam (SCV), T+SCV+axillary nodes with an anterior oblique beam (SCV+AX), and T+SCV+AX with the nodal regions treated with a directly opposed beam configuration (DO)...
January 24, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28126329/head-and-neck-target-delineation-using-a-novel-pet-automatic-segmentation-algorithm
#13
B Berthon, M Evans, C Marshall, N Palaniappan, N Cole, V Jayaprakasam, T Rackley, E Spezi
PURPOSE: To evaluate the feasibility and impact of using a novel advanced PET auto-segmentation method in Head and Neck (H&N) radiotherapy treatment (RT) planning. METHODS: ATLAAS, Automatic decision Tree-based Learning Algorithm for Advanced Segmentation, previously developed and validated on pre-clinical data, was applied to (18)F-FDG-PET/CT scans of 20 H&N patients undergoing Intensity Modulated Radiation Therapy. Primary Gross Tumour Volumes (GTVs) manually delineated on CT/MRI scans (GTVpCT/MRI), together with ATLAAS-generated contours (GTVpATLAAS) were used to derive the RT planning GTV (GTVpfinal)...
January 23, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28117079/a-national-dosimetry-audit-for-stereotactic-ablative-radiotherapy-in-lung
#14
Gail Distefano, Jonny Lee, Shakardokht Jafari, Clare Gouldstone, Colin Baker, Helen Mayles, Catharine H Clark
BACKGROUND AND PURPOSE: A UK national dosimetry audit was carried out to assess the accuracy of Stereotactic Ablative Body Radiotherapy (SABR) lung treatment delivery. METHODS AND MATERIALS: This mail-based audit used an anthropomorphic thorax phantom containing nine alanine pellets positioned in the lung region for dosimetry, as well as EBT3 film in the axial plane for isodose comparison. Centres used their local planning protocol/technique, creating 27 SABR plans...
January 20, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28117078/treating-patients-with-dynamic-wave-arc-first-clinical-experience
#15
Manuela Burghelea, Dirk Verellen, Jennifer Dhont, Cecilia Hung, Thierry Gevaert, Robbe Van den Begin, Christine Collen, Kenneth Poels, Koen Tournel, Marlies Boussaer, Cyril Jaudet, Truus Reynders, Viorica Simon, Mark de Ridder
BACKGROUND AND PURPOSE: Dynamic Wave Arc (DWA) is a system-specific noncoplanar arc technique that combines synchronized gantry-ring rotation with D-MLC optimization. This paper presents the clinical workflow, quality assurance program, and reports the geometric and dosimetric results of the first patient cohort treated with DWA. METHODS AND MATERIALS: The RayStation TPS was clinically integrated on the Vero SBRT platform for DWA treatments. The first 15 patients treated with DWA represent a broad range of treatment sites: breast boost, prostate, lung SBRT and bone metastases, which allowed us to explore the potentials and assess the limitations of the current DWA site-specific template solution...
January 20, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28110960/dose-effect-analysis-of-radiation-induced-rib-fractures-after-thoracic-sbrt
#16
Barbara Stam, Erik van der Bijl, Heike Peulen, Maddalena M G Rossi, José S A Belderbos, Jan-Jakob Sonke
BACKGROUND AND PURPOSE: To determine a dose-effect relation for radiation induced rib fractures after stereotactic body radiation therapy (SBRT) in early stage non-small cell lung cancer (NSCLC). Automatic rib delineation has enabled the analysis of a large patient group. MATERIAL AND METHODS: Four-hundred and sixty-six patients with stage I/II NSCLC received SBRT with a median of 54Gy in 3 fractions. The optimal EQD2-corrected dose parameter to predict (a)symptomatic fractures was found using Cox regression...
January 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28110959/patterns-of-failure-for-patients-with-glioblastoma-following-o-2-18-f-fluoroethyl-l-tyrosine-pet-and-mri-guided-radiotherapy
#17
Michael Lundemann, Junia Cardoso Costa, Ian Law, Svend Aage Engelholm, Aida Muhic, Hans Skovgaard Poulsen, Per Munck Af Rosenschold
BACKGROUND AND PURPOSE: To evaluate the patterns of failure following clinical introduction of amino-acid O-(2-[(18)F]fluoroethyl)-L-tyrosine (FET)-PET-guided target definition for radiotherapy (RT) of glioblastoma patients. MATERIALS AND METHODS: The first 66 consecutive patients with confirmed histology, scanned using FET-PET/CT and MRI were selected for evaluation. Chemo-radiotherapy was delivered to a volume based on both MRI and FET-PET (PETvol). The volume of recurrence (RV) was defined on MRI data collected at the time of progression according to RANO criteria...
January 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28109544/cost-effectiveness-of-prophylactic-cranial-irradiation-with-hippocampal-avoidance-in-limited-stage-small-cell-lung-cancer
#18
Xuanlu M Qu, Mark V Mishra, Glenn S Bauman, Ben Slotman, Minesh Mehta, Vinai Gondi, Alexander V Louie
BACKGROUND AND PURPOSE: Prophylactic cranial irradiation (PCI) in limited stage small cell lung cancer (LS-SCLC) prevents brain metastases and improves survival, with the potential for neurocognitive toxicity. RTOG0933 demonstrated that hippocampal avoidance (HA) during whole brain radiotherapy preserves neurocognition. This study's objective was to evaluate the cost-effectiveness of HA-PCI in LS-SCLC through decision analysis. MATERIALS AND METHODS: A Markov model was developed to simulate the clinical course of LS-SCLC who received HA-PCI or conventional PCI (C-PCI)...
January 18, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28104300/challenges-and-opportunities-in-primary-cns-lymphoma-a-systematic-review
#19
REVIEW
Mariana N Kerbauy, Fabio Y Moraes, Benjamin H Lok, Jennifer Ma, Lucila N Kerbauy, Daniel E Spratt, Fabio P S Santos, Guilherme F Perini, Alejandro Berlin, Caroline Chung, Nelson Hamerschlak, Joachim Yahalom
BACKGROUND: Historically, high-dose methotrexate (HD-MTX) plus consolidation chemotherapy and/or whole brain radiotherapy (WBRT) has been the gold standard on Primary Central Nervous System Lymphoma (PCNSL) management. We sought to examine and summarize the data, on clinical trial (CT) setting, investigating multi-modality treatment to PCNSL. METHODS: We performed a systematic review of electronic databases (Medline, EMBASE, Cochrane Database and clinicaltrials...
January 16, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28104299/liquid-fiducial-marker-applicability-in-proton-therapy-of-locally-advanced-lung-cancer
#20
Jonas Scherman Rydhög, Rosalind Perrin, Rasmus Irming Jølck, Francis Gagnon-Moisan, Klaus Richter Larsen, Paul Clementsen, Steen Riisgaard de Blanck, Gitte Fredberg Persson, Damien Charles Weber, Tony Lomax, Thomas Lars Andresen, Per Munck Af Rosenschold
BACKGROUND AND PURPOSE: We investigated the clinical applicability of a novel liquid fiducial marker (LFM) for image-guided pencil beam scanned (PBS) proton therapy (PBSPT) of locally advanced lung cancer (LALC). MATERIALS AND METHODS: The relative proton stopping power (RSP) of the LFM was calculated and measured. Dose perturbations of the LFM and three solid markers, in a phantom, were measured. PBSPT treatment planning on computer tomography scans of five patients with LALC with the LFM implanted was performed with 1-3 fields...
January 16, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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