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https://www.readbyqxmd.com/read/28934676/simultaneous-biofiltration-of-btex-and-hg%C3%A2-from-a-petrochemical-waste-stream
#1
Mostafa Leili, Sima Farjadfard, George A Sorial, Bahman Ramavandi
A biofiltration system was developed to treat benzene, toluene, ethylbenzene, and xylene (BTEX) and Hg° vapour from a petrochemical waste stream during overhaul maintenance. The biofilter compost bed was inoculated with a microbial consortium provided by a petrochemical wastewater treatment plant. The effect of the a BTEX concentration (192.6-973.8 g/m(3)h) and empty bed residence time (EBRT) of 20-100 s were studied under the conditions of steady state, transient, shock BTEX-loading, and off-restart. The findings revealed that during a biofilter start-up, an increase in the influent BTEX concentration to around 334...
September 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28930812/role-of-radiation-therapy-in-the-multidisciplinary-management-of-uterine-carcinosarcoma
#2
Jillian R Gunther, Eva N Christensen, Pamela K Allen, Lois M Ramondetta, Anuja Jhingran, Nicole D Fleming, Elizabeth D Euscher, Karen H Lu, Patricia J Eifel, Ann H Klopp
OBJECTIVES: This study aimed to evaluate the impact of radiation therapy on outcomes for patients with uterine carcinosarcoma (UC). METHODS/MATERIALS: We retrospectively reviewed the records of 155 women with stage I (98), II (11), or III (46) UC who underwent total abdominal hysterectomy/bilateral salpingo-oophorectomy at our institution between 1990 and 2011. Survival rates were assessed using the Kaplan-Meier method and log-rank test. Univariate and multivariate Cox regression analyses were performed...
September 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28919294/studying-the-efficacy-of-escalated-dose-conformal-radiation-therapy-in-prostate-carcinoma-pakistan-experience
#3
Asad Zamir, Ahmad Farooq, Hasan Nisar, Ismat Fatima, Irfan Ullah Khan, Misbah Masood, Abubaker Shahid
BACKGROUND: Our objective in this study was to evaluate the role and benefits in terms of local toxicity and biochemical disease-free survival (bDFS) following escalated-dose conformal radiation therapy in prostate adenocarcinoma. METHODS: The study population was composed of 53 patients with histologically proven T1b-T4, NO, MO prostate adenocarcinoma, having any Gleason score with prostate-specific antigen (PSA) of less than 50 ng/mL at diagnosis, given escalated dose EBRT (74 Gy) during the period between January 2011 and December 2013, retrospectively and evaluated for a period of 2 years post-radiation...
September 14, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28917587/early-or-late-radiotherapy-following-gross-or-subtotal-resection-for-atypical-meningiomas-clinical-outcomes-and-local-control
#4
Ammoren Dohm, Emory R McTyre, Michael D Chan, Claire Fan, Scott Isom, J Daniel Bourland, Ryan T Mott, Christina K Cramer, Stephen B Tatter, Adrian W Laxton
We report a single institution series of surgery followed by either early adjuvant or late radiotherapy for atypical meningiomas (AM). AM patients, by WHO 2007 definition, underwent subtotal resection (STR) or gross total resection (GTR). Sixty-three of a total 115 patients then received fractionated or stereotactic radiation treatment, early adjuvant radiotherapy (≤4months after surgery) or late radiotherapy (at the time of recurrence). Kaplan Meier method was used for survival analysis with competing risk analysis used to assess local failure...
September 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28914611/deep-convolutional-neural-network-with-transfer-learning-for-rectum-toxicity-prediction-in-cervical-cancer-radiotherapy-a-feasibility-study
#5
Xin Zhen, Jiawei Chen, Zichun Zhong, Brian Andrew Hrycushko, Linghong Zhou, Steve B Jiang, Kevin Albuquerque, Xuejun Gu
Better understanding of the dose-toxicity relationship is critical for safe dose escalation to improve local control in late-stage cervical cancer radiotherapy. In this study, we introduced a convolutional neural network (CNN) model to analyze rectum dose distribution and predict rectum toxicity. Forty-two cervical cancer patients treated with combined external beam radiotherapy (EBRT) and brachytherapy (BT) were retrospectively collected, including twelve toxicity patients and thirty non-toxicity patients...
September 15, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28905446/impact-of-five-tiered-gleason-grade-groups-on-prognostic-prediction-in-clinical-stage-t3-prostate-cancer-undergoing-high-dose-rate-brachytherapy
#6
Hideyasu Tsumura, Hiromichi Ishiyama, Ken-Ichi Tabata, Hiroki Katsumata, Momoko Kobayashi, Masaomi Ikeda, Shinji Kurosaka, Tetsuo Fujita, Masashi Kitano, Takefumi Satoh, Nobuyuki Yanagisawa, Kazushige Hayakawa, Masatsugu Iwamura
BACKGROUND: We evaluated a five-tiered Gleason grade groups arising from the 2014 International Society of Urological Pathology consensus conference on prognostic prediction in clinical stage T3a (extracapsular invasion) and T3b (seminal vesicle involvement) prostate cancer undergoing high-dose-rate brachytherapy (HDR-BT). METHODS: From November 2003 to December 2012, 283 patients with stage T3 prostate cancer received HDR-BT and external beam radiation therapy (EBRT) with long-term androgen deprivation therapy (ADT)...
September 14, 2017: Prostate
https://www.readbyqxmd.com/read/28895107/external-beam-radiation-therapy-for-resectable-soft-tissue-sarcoma-a-systematic-review-and-meta-analysis
#7
Markus Albertsmeier, Alexandra Rauch, Falk Roeder, Sandro Hasenhütl, Sebastian Pratschke, Michaela Kirschneck, Alessandro Gronchi, Nina L Jebsen, Philippe A Cassier, Paul Sargos, Claus Belka, Lars H Lindner, Jens Werner, Martin K Angele
PURPOSE: The aim of this study was to evaluate the role of preoperative and postoperative external beam radiation therapy (EBRT) in the treatment of resectable soft tissue sarcomas (STSs) of different tumor locations. METHODS: A systematic literature search was performed to identify studies investigating the effects of EBRT (versus no EBRT) on local recurrence (LR) and overall survival (OS) or comparing different EBRT sequences. Random effects meta-analyses were calculated and presented as cumulative odds ratios (ORs)...
September 11, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28886961/a-feasibility-study-of-using-advanced-external-beam-techniques-to-create-a-vaginal-cuff-brachytherapy-like-endometrial-boost-plan
#8
Zachary Grelewicz, Brooke Zerrusen, Vythialingam Sathiaseelan, Hualin Zhang
The purpose of this study was to explore the feasibility of using advanced external beam radiation therapy (EBRT) planning techniques for creating plans that could be used as a possible alternative for high-dose rate (HDR) vaginal cuff brachytherapy (VCBT) boost in treating endometrial cancer. The computed tomography (CT) images of a total of 4 female patients who had endometrial cancer treated with HDR-VCBT were selected for this study. A typical HDR-VCBT target volume, 0.5-cm-thick shell volume around the cylinder applicator in the prescribed treatment length was contoured and used as the planning target volume (PTV) in both the HDR VCBT and the EBRT VCBT-like plans...
September 5, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28882187/nadir-psa-is-a-strong-predictor-of-treatment-outcome-in-intermediate-and-high-risk-localized-prostate-cancer-patients-treated-by-definitive-external-beam-radiotherapy-and-androgen-deprivation
#9
Fady B Geara, Muhammad Bulbul, Raja B Khauli, Therese Y Andraos, Mirna Abboud, Abdelatif Al Mousa, Nasim Sarhan, Ahmed Salem, Hamza Ghatasheh, Anoud Alnsour, Zeina Ayoub, Ibrahim Abu Gheida, Maya Charafeddine, Mohammed Shahait, Ali Shamseddine, Rami Abu Gheida, Jamal Khader
BACKGROUND: The aim of this study is to investigate the effect of tumor characteristics and parameters of treatment response in predicting biochemical disease-free survival (BFS) for patients with intermediate or high risk prostate cancer treated by combined definitive external beam radiation therapy (EBRT) and androgen deprivation therapy (ADT). METHODS: Between June 1995 and January 2015, 375 patients with localized prostate cancer and a National Comprehensive Cancer Network (NCCN) intermediate or high risk categories were treated by definitive EBRT and ADT...
September 7, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28869138/survival-outcomes-of-radical-prostatectomy-versus-radiotherapy-in-intermediate-risk-prostate-cancer-a-ncdb-study
#10
Sydney Marsh, Ryan W Walters, Peter T Silberstein
BACKGROUND: Studies of various prostate cancer patient cohorts found men receiving external-beam radiotherapy (EBRT) had higher mortality than men undergoing radical prostatectomy (RP). Conversely, a recent clinical trial showed no survival differences between treatment groups. We used the National Cancer Data Base (NCDB) to evaluate overall survival in intermediate-risk (T2b-T2c or Gleason 7 [grade group II or III] or prostate-specific antigen 10-20 ng/mL) prostate cancer patients undergoing EBRT with or without androgen deprivation therapy (ADT), RP, or no initial treatment...
August 9, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28866431/outcomes-of-stage-ii-endometrial-cancer-the-upmc-hillman-cancer-center-experience
#11
Katherine S Chen, Hebist Berhane, Beant S Gill, Alexander Olawaiye, Paniti Sukumvanich, Joseph L Kelley, Michelle M Boisen, Madeleine Courtney-Brooks, John T Comerci, Robert Edwards, Jessica Berger, Sushil Beriwal
PURPOSE: Previous studies of stage II endometrial cancer have included cancers with cervical glandular involvement, a factor no longer associated with risk of recurrence. In order to better assess relapse patterns and the impact of adjuvant therapy, a retrospective analysis was conducted for patients with modern stage II endometrial cancer, defined as cervical stromal invasion. MATERIALS AND METHODS: Patients diagnosed with surgically staged FIGO stage II endometrial cancer at the UPMC Hillman Cancer Center from 1990-2013 were reviewed...
August 30, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28851250/influence-of-external-beam-radiotherapy-on-the-properties-of-pmma-versus-silicone-induced-membranes-in-a-bilateral-segmental-bone-defect-in-rats
#12
Thomas Sagardoy, Camille Ehret, Reine Bareille, Jerome Benoit, Joëlle Amédée, Erwan De Mones
INTRODUCTION: Standard care for malignant tumors arising next to a bone structure is surgical removal with safety margins, followed by external beam radiotherapy (EBRT). Complete tumor removal can result in large bone defects. A two-step bone reconstruction technique using the induced membrane (IM) technique has proven its efficacy to bridge gap non-union. During the first step, a spacer is placed in the bone gap. The spacer then is removed and the IM around it is filled with autologous cancellous bone graft...
August 29, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28830646/dynamics-of-patient-reported-quality-of-life-and-symptoms-in-the-acute-phase-of-online-adaptive-external-beam-radiation-therapy-for-locally-advanced-cervical-cancer
#13
S T Heijkoop, R A Nout, S Quint, J W M Mens, B J M Heijmen, M S Hoogeman
OBJECTIVE: For locally advanced cervical cancer patients, treated with External Beam Radiotherapy (EBRT), Quality of Life (QoL) questionnaires arefrequently used to evaluate treatment-related symptoms and functioning scales. Currently, it is unknown how those evolve during the radiation treatment course. In this prospective study we report on weekly-captured patient-reported QoL and symptoms during image-guided adaptive radiotherapy (IGART) of cervical cancer patients. MATERIAL AND METHODS: Between January 2012 and September 2016, all locally advanced cervical cancer patients treated with IGART and brachytherapy with or without chemotherapy or hyperthermia, were eligible...
August 19, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28822257/performance-of-a-monolith-biotrickling-filter-treating-high-concentrations-of-h2s-from-mimic-biogas-and-elemental-sulfur-plugging-control-using-pigging
#14
Xintong Qiu, Marc A Deshusses
A novel biotrickling filter using a 3D-printed honeycomb-monolith as its filter bed has been proposed and studied in this work and a solution to bed-clogging problems using pigging was demonstrated. The inlet H2S concentration in the mimic biogas was controlled around 1000 ppmv and the empty bed gas residence time (EBRT) was 41 s corresponding to a loading rate of 127 g S-H2S m(-3) h(-1). The influence of different H2S/O2 ratios on the removal performance and fate of sulfur end-products was investigated...
November 2017: Chemosphere
https://www.readbyqxmd.com/read/28821268/hypo-fractionated-sbrt-for-localized-prostate-cancer-a-german-bi-center-single-treatment-group-feasibility-trial
#15
Ping Jiang, Katja Krockenberger, Reinhard Vonthein, Jane Tereszczuk, Arne Schreiber, Sebastian Liebau, Stefan Huttenlocher, Detlef Imhoff, Panagiotis Balermpas, Christian Keller, Kathrin Dellas, Rene Baumann, Claus Rödel, Guido Hildebrandt, Klaus-Peter Jünemann, Alex S Merseburger, Alan Katz, Andreas Ziegler, Oliver Blanck, Jürgen Dunst
BACKGROUND: For prostate cancer treatment, treatment options with minimal side effects are desired. External beam radiation therapy (EBRT) is non-invasive, standard of care and delivered in either conventional fractionation over 8 weeks or with moderate hypo-fractionation over about 5 weeks. Recent advances in radiotherapy technology have made extreme hypo-fractionated stereotactic body radiation therapy (SBRT) of prostate cancer feasible, which has not yet been introduced as a standard treatment method in Germany...
August 18, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28819067/health-economics-of-targeted-intraoperative-radiotherapy-targit-iort-for-early-breast-cancer-a-cost-effectiveness-analysis-in-the-united-kingdom
#16
Anil Vaidya, Param Vaidya, Brigitte Both, Chris Brew-Graves, Max Bulsara, Jayant S Vaidya
OBJECTIVE: The clinical effectiveness of targeted intraoperative radiotherapy (TARGIT-IORT) has been confirmed in the randomised TARGIT-A (targeted intraoperative radiotherapy-alone) trial to be similar to a several weeks' course of whole-breast external-beam radiation therapy (EBRT) in patients with early breast cancer. This study aims to determine the cost-effectiveness of TARGIT-IORT to inform policy decisions about its wider implementation. SETTING: TARGIT-A randomised clinical trial (ISRCTN34086741) which compared TARGIT with traditional EBRT and found similar breast cancer control, particularly when TARGIT was given simultaneously with lumpectomy...
August 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28816169/long-term-results-of-a-randomized-trial-comparing-iridium-implant-plus-external-beam-radiation-therapy-with-external-beam-radiation-therapy-alone-in-node-negative-locally-advanced-cancer-of-the-prostate
#17
RANDOMIZED CONTROLLED TRIAL
Ian S Dayes, Sameer Parpia, Jaclyn Gilbert, Jim A Julian, Ian R Davis, Mark N Levine, Jinka Sathya
PURPOSE: To determine the impact on long-term survival from the addition of brachytherapy to external beam radiation therapy (EBRT) in patients with prostate cancer. METHODS AND MATERIALS: Between 1992 and 1997, 104 men with cT2-3, surgically staged node-negative prostate cancer were randomized to receive either EBRT (40 Gy/20 fractions) with iridium implant (35 Gy/48 hours) or EBRT alone (66 Gy/33 fractions) to the prostate. According to T stage, Gleason score, and prostate-specific antigen level, 60% of patients had high-risk disease...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28807749/high-dose-rate-interstitial-brachytherapy-boost-in-inoperable-locally-advanced-tongue-carcinoma
#18
Miguel Angel Santos, Jose Luis Guinot, Maria Isabel Tortajada, Paula Santamaría, Valentin Campo, Laura Oliver, Marina Peña, Leoncio Arribas
PURPOSE: Locally advanced tongue carcinomas (LATCs) in inoperable lesions are managed with external beam radiation therapy (EBRT) and chemotherapy. In our institution, the boost to the gross tumor volume is delivered with high-dose-rate brachytherapy (HDR-BT) after EBRT. We review the outcome of these patients when HDR-BT is added as a boost. METHODS AND MATERIALS: From May 2000 to December 2014, a total of 24 patients with LATC, nonsurgical oral tongue, and base of tongue carcinomas were treated with EBRT and with interstitial plastic tubes for brachytherapy; median dose was 18-24 Gy in 6-8 fractions after 50-60 Gy of EBRT...
August 11, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28807747/pretreatment-3t-multiparametric-mri-staging-predicts-for-biochemical-failure-in-high-risk-prostate-cancer-treated-with-combination-high-dose-rate-brachytherapy-and-external-beam-radiotherapy
#19
John V Hegde, D Jeffrey Demanes, Darlene Veruttipong, Jagdeep Raince, Sang-June Park, Steven S Raman, Nicholas G Nickols, Christopher R King, Amar U Kishan, Michael L Steinberg, Mitchell Kamrava
PURPOSE: To determine whether pretreatment 3T multiparametric MRI (mpMRI) staging impacts biochemical recurrence-free survival (BRFS) or distant metastasis-free survival (DMFS) for men with high-risk prostate cancer treated with combination high-dose-rate (HDR) brachytherapy and external beam radiation therapy (EBRT). MATERIALS AND METHODS: This institutional review board-approved retrospective study included a cohort of 37 men with high-risk prostate cancer treated with HDR brachytherapy and EBRT after 3T mpMRI...
August 11, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28802913/salvage-high-dose-rate-brachytherapy-and-external-beam-radiotherapy-for-isolated-vaginal-recurrences-of-endometrial-cancer-with-no-prior-adjuvant-therapy
#20
Christopher H Chapman, Kaveh Maghsoudi, Ramey D Littell, Lee-May Chen, I-Chow Hsu
PURPOSE: To evaluate clinical outcomes for isolated vaginal recurrence of endometrial cancer without adjuvant therapy treated with salvage external beam radiation therapy (EBRT) and high-dose-rate CT-based inverse-planned brachytherapy. METHODS AND MATERIALS: Thirty women were included in this retrospective study. Median time to first recurrence was 16.7 months, and median age at recurrence was 73 years. Initial grade was 1 or 2 in 19 patients (63%), and 2009 FIGO stage IA in 19 patients...
August 9, 2017: Brachytherapy
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