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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/28089484/dosimetric-parameters-correlate-with-duodenal-histopathologic-damage-after-stereotactic-body-radiotherapy-for-pancreatic-cancer-secondary-analysis-of-a-prospective-clinical-trial
#1
Vivek Verma, Audrey J Lazenby, Dandan Zheng, Abhijeet R Bhirud, Quan P Ly, Chandrakanth Are, Aaron R Sasson, Chi Lin
PURPOSE: Prospectively assess relationships between dosimetric parameters and histopathologic/clinical duodenal toxicities in patients on a phase I trial for pancreatic cancer. METHODS: Forty-six borderline resectable/unresectable patients were enrolled on a prospective trial testing neoadjuvant gemcitabine/5-fluorouracil followed by SBRT (5 daily fractions of 5-8Gy) and concurrent nelfinavir. Post-SBRT surgery was performed in 13 resectable patients, which constituted the patient population herein...
January 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28089483/patterns-of-failure-after-radiotherapy-for-pediatric-patients-with-intracranial-ependymoma
#2
Fatima Tensaouti, Anne Ducassou, Léonor Chaltiel, Stéphanie Bolle, Xavier Muracciole, Bernard Coche-Dequeant, Claire Alapetite, Valérie Bernier, Line Claude, Stéphane Supiot, Aymeri Huchet, Christine Kerr, Elisabeth le Prisé, Anne Laprie
PURPOSE: To investigate the patterns of failure after radiotherapy for pediatric intracranial ependymoma and their correlation with dose parameters. METHODS: Between 2000 and 2013, 206 patients were treated in France. MRI scans at relapse were registered to the original planning CTs for topographic analysis of failure patterns. To compare relapse patients (RP) with non relapse patients (NRP), several dose parameters were derived from dose volume histograms. RESULTS: Over a median follow-up of 53...
January 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28089482/efficacy-of-multiple-fraction-conventional-radiation-therapy-for-painful-uncomplicated-bone-metastases-a-systematic-review
#3
REVIEW
Ronald Chow, Peter Hoskin, Stephanie Chan, Aruz Mesci, Drew Hollenberg, Henry Lam, Carlo DeAngelis, Edward Chow
BACKGROUND: Radiation therapy is effective for painful uncomplicated bone metastases, with multiple fraction radiation therapy (MFRT) administered frequently. The optimal dose for MFRT to yield maximum pain relief remains unclear. The aim of this systematic review was to determine pain response across MFRT doses. METHODS: A literature search was conducted in Ovid MEDLINE(R) <1946 to July Week 3 2016>, Embase Classic & Embase <1947 to 2016Week 30> and Cochrane Central Register of Controlled Trials <June 2016>...
January 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28087071/development-of-delineation-for-the-left-anterior-descending-coronary-artery-region-in-left-breast-cancer-radiotherapy-an-optimized-organ-at-risk
#4
Jie Lee, Kai-Lung Hua, Shih-Ming Hsu, Jhen-Bin Lin, Chou-Hsien Lee, Kuo-Wei Lu, Kun-Yao Dai, Xu-Nian Huang, Jun-Zhao Huang, Meng-Hao Wu, Yu-Jen Chen
BACKGROUND AND PURPOSE: The left anterior descending coronary artery (LAD) and diagonal branches (DBs) are blurred on computed tomography (CT). We aimed to define the LAD region (LADR) with adequate inclusion of the LAD and DBs and contouring consistency. METHODS AND MATERIALS: The LADR was defined using coronary CT angiograms. The inclusion ratio was used to assess the LAD and DBs inclusion by the LADR. Four radiation oncologists delineated the LAD and LADR, using contrast-enhanced CT of 15 patients undergoing left breast radiotherapy...
January 10, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28073579/robustness-of-4d-optimized-scanned-carbon-ion-beam-therapy-against-interfractional-changes-in-lung-cancer
#5
Christian Graeff
BACKGROUND AND PURPOSE: Moving targets could be conformally treated with actively scanned carbon ion beams using 4D-optimization. As this heavily exploits 4D-CTs, an important question is whether the conformity also upholds in the context of interfractional changes, i.e. variable positioning, anatomy and breathing patterns. MATERIALS AND METHODS: In 4 lung cancer patients, 6 weekly 4D-CTs were available. 4D-CTs and their phases were non-rigidly registered to propagate contours and 4D-doses...
January 7, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28073578/prophylactic-cranial-irradiation-after-definitive-chemoradiotherapy-for-limited-stage-small-cell-lung-cancer-do-all-patients-benefit
#6
Ahsan S Farooqi, Emma B Holliday, Pamela K Allen, Xiong Wei, James D Cox, Ritsuko Komaki
PURPOSE: Prophylactic cranial irradiation (PCI) can improve overall survival (OS) and suppress brain metastases (BM) in patients with limited-stage small cell lung cancer (LS-SCLC) after complete response to primary therapy. However, PCI can be toxic. We sought to identify characteristics of patients who may not benefit from PCI. METHODS: We identified 658 patients who received chemoradiotherapy at MD Anderson in 1986-2012; 364 received PCI and 294 did not. Median follow-up time was 21...
January 7, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28063696/association-of-post-treatment-positron-emission-tomography-with-locoregional-control-and-survival-after-radiation-therapy-for-squamous-cell-carcinoma-of-the-vulva
#7
Yuan James Rao, Comron Hassanzadeh, Anupama Chundury, Caressa Hui, Barry A Siegel, Farrokh Dehdashti, Todd DeWees, Daniel Mullen, Matthew A Powell, David G Mutch, Julie K Schwarz, Perry W Grigsby
BACKGROUND/PURPOSE: The aim of this study was to investigate the use of post-treatment F-18 fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) for vulvar cancer and compare metabolic response to clinical outcomes. MATERIALS/METHODS: This retrospective study included 21 patients with vulvar squamous cell carcinoma treated with curative-intent radiation between 2007 and 2015. All patients received intensity-modulated radiation treatment (IMRT), a pre-treatment FDG/PET-CT, and a post-treatment FDG-PET/CT performed at a median time of 3months post-IMRT...
January 4, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28063695/ipsilateral-axillary-recurrence-after-breast-conservative-surgery-the-protective-effect-of-whole-breast-radiotherapy
#8
Oreste Gentilini, Edoardo Botteri, Maria Cristina Leonardi, Nicole Rotmensz, Jose Vila, Nickolas Peradze, Maria Virginia Thomazini, Barbara Alicja Jereczek, Viviana Galimberti, Alberto Luini, Paolo Veronesi, Roberto Orecchia
BACKGROUND AND PURPOSE: Whole breast radiotherapy (WBRT) is one of the possible reasons for the low rate of axillary recurrence after breast-conserving surgery (BCS). PATIENTS AND METHODS: We retrospectively collected data from 4,129 consecutive patients with breast cancer ⩽2cm and negative sentinel lymph node who underwent BCS between 1997 and 2007. We compared the risk of axillary lymph node recurrence between patients treated by WBRT (n=2939) and patients who received partial breast irradiation (PBI; n=1,190) performed by a single dose of electron intraoperative radiotherapy...
January 4, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28063694/post-wbrt-cognitive-impairment-and-hippocampal-neuronal-depletion-measured-by-in-vivo-metabolic-mr-spectroscopy-results-of-prospective-investigational-study
#9
Petr Pospisil, Tomas Kazda, Ludmila Hynkova, Martin Bulik, Marie Dobiaskova, Petr Burkon, Nadia N Laack, Pavel Slampa, Radim Jancalek
BACKGROUND AND PURPOSE: The aim of this prospective study is to evaluate post-whole brain radiotherapy (WBRT) changes in hippocampal concentration of N-acetylaspartate (h-tNAA) as a marker of neuronal loss and to correlate those changes to neurocognitive function. MATERIAL AND METHODS: Thirty-five patients with brain metastases underwent baseline single slice multi-voxel MR spectroscopy (MRS) examination for measurement of hippocampal h-tNAA together with baseline battery of neurocognitive tests focused on memory (Auditory Verbal Learning Test and Brief Visuospatial Memory Test - Revised) as well as quality of life questionnaires (EORTC QLQ-C30 a EORTC QLQ-BN20)...
January 4, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28062087/does-an-integrated-boost-increase-acute-toxicity-in-prone-hypofractionated-breast-irradiation-a-randomized-controlled-trial
#10
Leen Paelinck, Akos Gulyban, Ferenc Lakosi, Tom Vercauteren, Werner De Gersem, Bruno Speleers, Christel Monten, Thomas Mulliez, Patrick Berkovic, Annick van Greveling, Frederik Decoster, Philippe Coucke, Wilfried De Neve, Liv Veldeman
BACKGROUND AND PURPOSE: The safety of a simultaneous integrated boost (SIB) in combination with prone hypofractionated whole-breast irradiation (WBI) was investigated. MATERIALS AND METHODS: 167 patients were randomized between WBI with a sequential boost (SeB) or SIB. All patients were treated in prone position to 40.05Gy in 15 fractions to the whole breast. In the control arm, a SeB of 10Gy in 4 fractions (negative surgical margins) or 14.88Gy in 6 fractions (transsection) was prescribed...
January 3, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28062086/proton-beam-therapy-for-olfactory-neuroblastoma
#11
Naoki Nakamura, Sadamoto Zenda, Makoto Tahara, Susumu Okano, Ryuichi Hayashi, Hidehiro Hojo, Kenji Hotta, Satoe Kito, Atsushi Motegi, Satoko Arahira, Hidenobu Tachibana, Tetsuo Akimoto
PURPOSE: To clarify the efficacy and feasibility of proton beam therapy (PBT) for olfactory neuroblastoma (ONB). METHODS AND MATERIALS: We retrospectively reviewed 42 consecutive patients who received PBT with curative intent for ONB at National Cancer Center Hospital East from November 1999 to March 2012. RESULTS: Five patients (12%) had Kadish A disease, nine (21%) had Kadish B, and twenty-eight (67%) had Kadish C. All patients except one received a total dose of 65Gy (relative biological effectiveness: RBE) in 26 fractions...
January 3, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28057329/hyperfractionated-accelerated-reirradiation-for-rectal-cancer-an-analysis-of-outcomes-and-toxicity
#12
Randa Tao, Chiaojung Jillian Tsai, Garrett Jensen, Cathy Eng, Scott Kopetz, Michael J Overman, John M Skibber, Miguel Rodriguez-Bigas, George J Chang, Yi-Qian Nancy You, Brian K Bednarski, Bruce D Minsky, Marc E Delclos, Eugene Koay, Sunil Krishnan, Christopher H Crane, Prajnan Das
BACKGROUND AND PURPOSE: To evaluate outcomes and toxicity in patients treated with hyperfractionated pelvic reirradiation for recurrent rectal cancer. MATERIALS AND METHODS: 102 patients with recurrent rectal adenocarcinoma were treated with pelvic reirradiation with a hyperfractionated accelerated approach, consisting of 1.5Gy twice daily fractions to a total dose of 30-45Gy (median 39Gy), with the most common total dose 39Gy (n=90, 88%). The median dose of prior pelvic radiation therapy (RT) was 50...
January 2, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28049550/gec-estro-acrop-recommendations-for-performing-bladder-sparing-treatment-with-brachytherapy-for-muscle-invasive-bladder-carcinoma
#13
Bradley R Pieters, Elzbieta van der Steen-Banasik, Geert A Smits, Marisol De Brabandere, Alberto Bossi, Erik Van Limbergen
The standard treatment for muscle-invasive bladder cancer (MIBC) is a radical cystectomy with pelvic lymph node dissection with or without neoadjuvant chemotherapy. In selected cases a bladder sparing approach is possible, for example a limited surgical excision combined with external beam radiotherapy and brachytherapy. To perform brachytherapy flexible catheters have to be implanted in the bladder wall. The implantation is done either by the open retropubic approach or the endoscopic surgical approach. The largest experience for brachytherapy is with low-dose rate and pulsed-dose rate, although some short-term experience with high-dose rate is also reported...
December 31, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28043645/adaptation-is-mandatory-for-intensity-modulated-proton-therapy-of-advanced-lung-cancer-to-ensure-target-coverage
#14
Lone Hoffmann, Markus Alber, Maria Fuglsang Jensen, Marianne Ingerslev Holt, Ditte Sloth Møller
BACKGROUND AND PURPOSE: Large anatomical changes during radiotherapy are seen for a large proportion of lung cancer patients. We investigate the applicability of a decision support protocol for photon therapy in a proton therapy setting. MATERIAL AND METHODS: Twenty-three consecutive NSCLC patients treated with adaptive photon therapy were retrospectively planned using IMPT. The adaptive protocol was based on geometrical measures of target positioning and large anatomical changes as shown on daily CBCT scans...
December 31, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28040309/delineating-biochemical-failure-with-68-ga-psma-pet-following-definitive-external-beam-radiation-treatment-for-prostate-cancer
#15
George Hruby, Thomas Eade, Andrew Kneebone, Louise Emmett, Lesley Guo, Bao Ho, Ed Hsiao, Geoff Schembri, Julia Hunter, Carol Kwong
BACKGROUND AND PURPOSE: We investigated the role of (68)Ga-PSMA-PET (PSMA) to determine the location of disease recurrence in those with a rising PSA following definitive external beam radiation treatment (EBRT). MATERIALS AND METHODS: 538men were treated with image guided EBRT to a dose of 78 or 82Gy between 2007 and 2014. Patients at least 24months post EBRT with biochemical failure (nadir+2) underwent PSMA scanning. Local recurrence (LR) was defined as increased uptake within the prostate or seminal vesicles...
December 28, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28034460/risk-adapted-simultaneous-integrated-boost-proton-beam-therapy-sib-pbt-for-advanced-hepatocellular-carcinoma-with-tumour-vascular-thrombosis
#16
Dae Yong Kim, Joong-Won Park, Tae Hyun Kim, Bo Hyun Kim, Sung Ho Moon, Sang Soo Kim, Sang Myung Woo, Young-Hwan Koh, Woo Jin Lee, Chang-Min Kim
PURPOSE: To evaluate clinical effectiveness and safety of simultaneous integrated boost-proton beam therapy (SIB-PBT) in hepatocellular carcinoma (HCC) patients with tumour vascular thrombosis (TVT). MATERIAL AND METHODS: Forty-one HCC patients with TVT underwent SIB-PBT using three dose-fractionation schemes: if gross tumour volume <1cm (n=27), 1-1.9cm (n=7), and ⩾2cm (n=7) from gastrointestinal structures, 50GyE (EQD2, 62.5GyE10), 60Gy (EQD2, 80GyE10), 66Gy (EQD2, 91...
December 26, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28024835/leukocytosis-and-neutrophilia-predicts-outcome-in-anal-cancer
#17
Antoine Schernberg, Alexandre Escande, Eleonor Rivin Del Campo, Michel Ducreux, France Nguyen, Diane Goere, Cyrus Chargari, Eric Deutsch
OBJECTIVE: Leukocytosis and neutrophilia could be the tip of the iceberg in the inflammatory tumor microenvironment. We aimed to validate their prognostic significance in a cohort of patients treated with definitive chemoradiation for anal squamous cell carcinoma (SCC). MATERIALS & METHODS: Clinical records from all consecutive patients treated in a single institution between 2006 and 2016 with curative-intent radiotherapy were retrospectively analyzed. Leukocytosis and neutrophilia, defined as leukocyte or neutrophil count over 10,000 and 7500/mm(3), respectively, were studied in terms of overall survival (OS), progression (PFS), locoregional (LFS) and distant (DFS)-free survival...
December 23, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28017476/double-strand-break-induction-and-kinetics-indicate-preserved-hypersensitivity-in-keratinocytes-to-subtherapeutic-doses-for-7weeks-of-radiotherapy
#18
Fredrik Qvarnström, Martin Simonsson, Jan Nyman, Ingegerd Hermansson, Majlis Book, Karl-Axel Johansson, Ingela Turesson
BACKGROUND AND PURPOSE: Previously we reported that hyper-radiosensitivity (HRS) was evidenced by quantifying DNA double strand break (DSB) foci in epidermis biopsies collected after delivering radiotherapeutic one and five dose fractions. The aim of this study was to determine whether HRS was preserved throughout a 7-week radiotherapy treatment, and also to examine the rate of foci decline and foci persistence between dose fractions. MATERIALS AND METHODS: 42 patients with prostate cancer received 7-week fractionated radiotherapy treatment (RT) with daily dose fractions of 0...
December 22, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28012795/determining-the-need-and-utilization-of-radiotherapy-in-cancers-of-the-breast-cervical-lung-prostate-and-rectum-a-population-level-study
#19
Lorraine Shack, Shuang Lu, Lee-Anne Weeks, Peter Craighead, Marc Kerba
PURPOSE: Determining the appropriate rate of radiotherapy (RT) utilization is important for health care planning and resource allocation. The difference between the observed and the appropriate RT rate is influenced by the choice of a criterion based benchmarking (CBB) or evidence-based estimates (EBEST) measure. Our primary objective was to determine the utilization of radiotherapy for cancers of the breast (B), cervix (C), lung (L), prostate (P) and rectum (R) in Alberta (AB) Canada and to compare the observed RT rates to estimates of need derived from the criterion based benchmarking (CBB) and evidence-based estimates (EBEST)...
December 21, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28012794/improved-overall-survival-with-adjuvant-radiotherapy-for-high-intermediate-and-high-risk-stage-i-endometrial-cancer
#20
Matthew M Harkenrider, William Adams, Alec M Block, Stephanie Kliethermes, William Small, Surbhi Grover
BACKGROUND/PURPOSE: To perform a large analysis of Stage I endometrioid-type endometrial cancer patients to determine the impact of adjuvant radiotherapy (ART) on survival. MATERIAL/METHODS: 132,976 FIGO Stage I endometrioid-type endometrial cancer patients treated surgically were identified within the National Cancer Database (NCDB) comprising Commission on Cancer facilities in the United States. Patients were categorized as observation (OBS) or ART (vaginal brachytherapy, external beam radiotherapy, or both)...
December 21, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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