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Simultaneous integrated boost

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https://www.readbyqxmd.com/read/28794640/volumetric-modulated-arc-therapy-for-treatment-of-solid-tumors-current-insights
#1
REVIEW
Gabriella Macchia, Francesco Deodato, Savino Cilla, Silvia Cammelli, Alessandra Guido, Martina Ferioli, Giambattista Siepe, Vincenzo Valentini, Alessio Giuseppe Morganti, Gabriella Ferrandina
AIM: This article discusses the current use of volumetric modulated arc therapy (VMAT) techniques in clinical practice and reviews the available data from clinical outcome studies in different clinical settings. An overview of available literature about clinical outcomes with VMAT stereotactic/radiosurgical treatment is also reported. MATERIALS AND METHODS: All published manuscripts reporting the use of VMAT in a clinical setting from 2009 to November 2016 were identified...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28793907/risk-adapted-dose-intensified-postoperative-radiation-therapy-in-prostate-cancer-patients-using-a-simultaneous-integrated-boost-technique-applied-with-helical-tomotherapy
#2
Marcus Beck, Peter Wust, Tomasz Barelkowski, David Kaul, Alexander-Henry Thieme, Sascha Wecker, Waldemar Wlodarczyk, Volker Budach, Pirus Ghadjar
BACKGROUND: Postoperative adjuvant radiation therapy (ART) in T3 and R1 prostate cancer as well as salvage radiation therapy (SRT) in case of postoperative biochemical failure (BF) are established treatments. Dose-intensified postoperative radiation therapy (RT) schemes have shown superior biochemical control accompanied by increased toxicity rates. In our study we evaluate a novel risk adapted dose-intensified postoperative RT scheme. METHODS: A consecutive series of prostate cancer patients receiving postoperative RT after radical prostatectomy using helical Tomotherapy between 04/2012 and 04/2015 was analyzed retrospectively...
August 10, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28766726/a-novel-3d-printed-phantom-insert-for-4d-pet-ct-imaging-and-simultaneous-integrated-boost-radiotherapy
#3
Laura Cerviño, Dima Soultan, Mariel Cornell, Adam Yock, Niclas Pettersson, William Y Song, Joseph Aguilera, Sunil Advani, James Murphy, Carl Ho, Claude James, Anthony Paravati, Robin Coope, Bradford Gill, Vitali Moiseenko
PURPOSE: To construct a 3D-printed phantom insert designed to mimic the variable PET tracer uptake seen in lung tumor volumes and a matching dosimetric insert to be used in simultaneous integrated boost (SIB) phantom studies, and to evaluate the design through end-to-end tests. METHODS: A set of phantom inserts was designed and manufactured for a realistic representation of gated radiotherapy steps from 4D PET/CT scanning to dose delivery. A cylindrical phantom (φ80x120 mm) holds inserts for PET/CT scanning...
August 2, 2017: Medical Physics
https://www.readbyqxmd.com/read/28755327/comorbidities-and-intensity-modulated-radiotherapy-with-simultaneous-integrated-boost-in-elderly-breast-cancer-patients
#4
Alba Fiorentino, Rosario Mazzola, Niccolò Giaj Levra, Sergio Fersino, Francesco Ricchetti, Gioacchino Di Paola, Stefania Gori, Alberto Massocco, Filippo Alongi
PURPOSE: To evaluate the impact of comorbidity assessment on compliance to intensity modulated radiotherapy with simultaneous integrated boost (SIB-IMRT) in elderly patients affected by early stage breast cancer (BC). MATERIALS AND METHODS: 40 consecutive patients were treated with SIB-IMRT (50 Gy in 25 fractions to the whole breast, and simultaneously 60 Gy to the surgical bed) for invasive BC after conserving surgery. Inclusion criteria were: age ≥ 70 years, pT1-2 disease, pN0-1, no neoadjuvant chemotherapy, non-metastatic disease...
July 28, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28750284/reviewing-bayesian-networks-potentials-for-climate-change-impacts-assessment-and-management-a-multi-risk-perspective
#5
REVIEW
Anna Sperotto, José-Luis Molina, Silvia Torresan, Andrea Critto, Antonio Marcomini
The evaluation and management of climate change impacts on natural and human systems required the adoption of a multi-risk perspective in which the effect of multiple stressors, processes and interconnections are simultaneously modelled. Despite Bayesian Networks (BNs) are popular integrated modelling tools to deal with uncertain and complex domains, their application in the context of climate change still represent a limited explored field. The paper, drawing on the review of existing applications in the field of environmental management, discusses the potential and limitation of applying BNs to improve current climate change risk assessment procedures...
July 24, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28740917/phase-1-trial-of-preoperative-image-guided-intensity-modulated-proton-radiation-therapy-with-simultaneously-integrated-boost-to-the-high-risk-margin-for-retroperitoneal-sarcomas
#6
Thomas F DeLaney, Yen-Lin Chen, Elizabeth H Baldini, Dian Wang, Judith Adams, Shea B Hickey, Beow Y Yeap, Stephen M Hahn, Karen De Amorim Bernstein, G Petur Nielsen, Edwin Choy, John T Mullen, Sam S Yoon
PURPOSE: To conduct phase 1 and 2 trials with photon intensity modulated radiation therapy and intensity modulated proton therapy (IMPT) arms to selectively escalate the retroperitoneal sarcoma preoperative radiation dose to tumor volume (clinical target volume [CTV] 2) that is judged to be at a high risk for positive margins and aim to reduce local recurrence. We report on the IMPT study arm in phase 1. METHODS AND MATERIALS: Patients aged ≥18 years with primary or locally recurrent retroperitoneal sarcoma were treated with preoperative IMPT, 50...
January 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28733723/an-individualized-radiation-dose-escalation-trial-in-non-small-cell-lung-cancer-based-on-fdg-pet-imaging
#7
Marie Wanet, Antoine Delor, François-Xavier Hanin, Benoît Ghaye, Aline Van Maanen, Vincent Remouchamps, Christian Clermont, Samuel Goossens, John Aldo Lee, Guillaume Janssens, Anne Bol, Xavier Geets
AIM: The aim of the study was to assess the feasibility of an individualized 18F fluorodeoxyglucose positron emission tomography (FDG-PET)-guided dose escalation boost in non-small cell lung cancer (NSCLC) patients and to assess its impact on local tumor control and toxicity. PATIENTS AND METHODS: A total of 13 patients with stage II-III NSCLC were enrolled to receive a dose of 62.5 Gy in 25 fractions to the CT-based planning target volume (PTV; primary turmor and affected lymph nodes)...
July 21, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28722267/simultaneous-bright-and-black-blood-whole-heart-mri-for-noncontrast-enhanced-coronary-lumen-and-thrombus-visualization
#8
Giulia Ginami, Radhouene Neji, Alkystis Phinikaridou, John Whitaker, René M Botnar, Claudia Prieto
PURPOSE: To develop a 3D whole-heart Bright-blood and black-blOOd phase SensiTive (BOOST) inversion recovery sequence for simultaneous noncontrast enhanced coronary lumen and thrombus/hemorrhage visualization. METHODS: The proposed sequence alternates the acquisition of two bright-blood datasets preceded by different preparatory pulses to obtain variations in blood/myocardium contrast, which then are combined in a phase-sensitive inversion recovery (PSIR)-like reconstruction to obtain a third, coregistered, black-blood dataset...
July 19, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28711481/simultaneous-integrated-boost-sib-for-treatment-of-gynecologic-carcinoma-intensity-modulated-radiation-therapy-imrt-vs-volumetric-modulated-arc-therapy-vmat-radiotherapy
#9
Irina Vergalasova, Kim Light, Junzo Chino, Oana Craciunescu
The aim of this study was to quantitatively compare dosimetric criteria between intensity-modulated radiation therapy (IMRT) and volumetric-modulated arc therapy (VMAT) plans for patients undergoing radiation treatment of gynecologic carcinoma with a simultaneous integrated boost (SIB) technique. IMRT and VMAT plans were retrospectively analyzed for 20 patients. The elective volume was planned to receive 45 Gy in 25 fractions of 1.8 Gy, with the integrated boost volume (involved nodes) receiving 55 Gy simultaneously...
July 12, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28707988/first-clinical-report-of-helical-tomotherapy-with-simultaneous-integrated-boost-for-synchronous-bilateral-breast-cancer
#10
Tabassum Wadasadawala, Shanu Jain, Siji Paul, Reena Phurailatpam, Kishore Joshi, Palak Popat, Sandip Tandon, Aruna Alahari, Rajiv Sarin
OBJECTIVE: Radiotherapy for synchronous bilateral breast cancer (SBBC) is technically very challenging. This study reports the clinical feasibility, dosimetry and safety of helical tomotherapy (HT) with simultaneous integrated boost (SIB) in patients treated with adjuvant radiotherapy for SBBC. MATERIAL AND METHODS: Twenty one women with SBBC treated with HT from January 2013 to June 2016 were retrospectively evaluated. Radiation lung toxicity was assessed using pulmonary function test (PFT) and high resolution computerized tomography scan (HRCT) scan at baseline and 1 year post RT in 18 patients...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28706358/response-to-the-comments-on-the-feasibility-study-of-a-hybrid-coplanar-arc-technique-versus-hybrid-intensity-modulated-radiotherapy-in-treatment-of-early-stage-left-sided-breast-cancer-with-simultaneous-integrated-boost-j-med-phys-2017-42-1-8
#11
Yuan-Gui Chen, An-Chuan Li, Wen-Yao Li, Miao-Yun Huang, Xiao-Bo Li, Ming-Qiu Chen, Mutian Zhang, Ben-Hua Xu
No abstract text is available yet for this article.
April 2017: Journal of Medical Physics
https://www.readbyqxmd.com/read/28706357/reference-to-chen-yg-li-ac-li-wy-huang-my-li-xb-chen-mq-et-al-the-feasibility-study-of-a-hybrid-coplanar-arc-technique-versus-hybrid-intensity-modulated-radiotherapy-in-treatment-of-early-stage-left-sided-breast-cancer-with-simultaneous-integrated-boost-j-med
#12
https://www.readbyqxmd.com/read/28704910/late-developing-metastatic-malignant-melanoma-in-the-thoracic-spine-originating-from-choroidal-melanoma
#13
Jun Kyu Hwang, Kyung Hyun Kim, Ji Sup Kim, Sung Jun Ahn, Sung Uk Kuh
A 54-year-old woman visited Gangnam Severance Hospital for left side flank pain. She had a history of total removal of malignant melanoma on the left eye ball 20 years prior. No evaluation had been performed since then. A paravertebral mass at thoracic ninth level (T9) was discovered on spinal magnetic resonance imaging, and pathology confirmed malignant melanoma. Following positron emission tomography-computed tomography, no other metastasis was discovered. After removal of the paravertebral mass, palliative chemotherapy (dacabarzine + tamoxifene) was administered in 3 cycles over 2 months...
June 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28679448/simultaneous-integrated-boost-therapy-of-carcinoma-of-the-hypopharynx-larynx-with-and-without-flattening-filter-a-treatment-planning-and-dosimetry-study
#14
Barbara Dobler, Tina Obermeier, Matthias G Hautmann, Amine Khemissi, Oliver Koelbl
BACKGROUND: The aim of this study was to investigate if the flattening filter free (FFF) irradiation mode of a linear accelerator (linac) is advantageous as compared to the flat beam (FF) irradiation mode in intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) for carcinoma of the hypopharynx / larynx. METHODS: Four treatment plans were created for each of 10 patients for an Elekta Synergy linac with Agility collimating device, a dual arc VMAT and a nine field step and shoot IMRT each with and without flattening filter...
July 5, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28676371/modeling-tumor-control-probability-for-spatially-inhomogeneous-risk-of-failure-based-on-clinical-outcome-data
#15
Armin Lühr, Steffen Löck, Annika Jakobi, Kristin Stützer, Anna Bandurska-Luque, Ivan Richter Vogelius, Wolfgang Enghardt, Michael Baumann, Mechthild Krause
PURPOSE: Objectives of this work are (1) to derive a general clinically relevant approach to model tumor control probability (TCP) for spatially variable risk of failure and (2) to demonstrate its applicability by estimating TCP for patients planned for photon and proton irradiation. METHODS AND MATERIALS: The approach divides the target volume into sub-volumes according to retrospectively observed spatial failure patterns. The product of all sub-volume TCPi values reproduces the observed TCP for the total tumor...
July 1, 2017: Zeitschrift Für Medizinische Physik
https://www.readbyqxmd.com/read/28676068/correlation-between-delivered-radiation-doses-to-the-brainstem-or-vestibular-organ-and-nausea-vomiting-toxicity-in-patients-with-head-and-neck-cancers-an-observational-clinical-trial
#16
Kilian Schiller, Hanno Martin Specht, Bernhard Haller, Daniela Hallqvist, Michal Devecka, Aaron Becker von Rose, Stephanie Elisabeth Combs, Steffi Pigorsch
OBJECTIVE: Today intensity modulated radiation therapy (IMRT) can be considered the standard of care in patients with head and neck tumors. IMRT treatment plans are proven to reduce acute treatment related side effects by optimal sparing of organs at risk (OAR). At the same time, areas that were out of the former 3D fields now receive low radiation doses. Amongst those areas the brainstem (BS) and the vestibular system (VS) are known to be physiologically connected to nausea and vomiting (NV)...
July 4, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28646463/patterns-of-failure-after-radical-prostatectomy-in-prostate-cancer-implications-for-radiation-therapy-planning-after-68-ga-psma-pet-imaging
#17
Kilian Schiller, K Sauter, S Dewes, M Eiber, T Maurer, J Gschwend, S E Combs, G Habl
BACKGROUND: Salvage radiotherapy (SRT) after radical prostatectomy (RPE) and lymphadenectomy (LAE) is the appropriate radiotherapy option for patients with persistent/ recurrent prostate cancer (PC). (68)Ga-PSMA-PET imaging has been shown to accurately detect PC lesions in a primary setting as well as for local recurrence or for lymph node (LN) metastases. OBJECTIVE: In this study we evaluated the patterns of recurrence after RPE in patients with PC, putting a highlight on the differentiation between sites that would have been covered by a standard radiation therapy (RT) field in consensus after the RTOG consensus and others that would have not...
September 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28636164/a-nanostructured-microfluidic-immunoassay-platform-for-highly-sensitive-infectious-pathogen-detection
#18
Xu Yu, Yiqiu Xia, Yi Tang, Wen-Long Zhang, Yin-Ting Yeh, Huaguang Lu, Si-Yang Zheng
Rapid and simultaneous detection of multiple potential pathogens by portable devices can facilitate early diagnosis of infectious diseases, and allow for rapid and effective implementation of disease prevention and treatment measures. The development of a ZnO nanorod integrated microdevice as a multiplex immunofluorescence platform for highly sensitive and selective detection of avian influenza virus (AIV) is described. The 3D morphology and unique optical property of the ZnO nanorods boost the detection limit of the H5N2 AIV to as low as 3...
June 2017: Small
https://www.readbyqxmd.com/read/28630876/a-dosimetric-comparison-of-dose-escalation-with-simultaneous-integrated-boost-for-locally-advanced-non-small-cell-lung-cancer
#19
Wenjuan Yang, Biao Zeng, Yanfang Qiu, Jianfeng Tan, Shilei Xu, Yilong Cai, Yujuan Zhou, Zhigang Liu, Junming Luo, Hui Wang
BACKGROUND: Many studies have demonstrated that a higher radiotherapy dose is associated with improved outcomes in non-small-cell lung cancer (NSCLC). We performed a dosimetric planning study to assess the dosimetric feasibility of intensity-modulated radiation therapy (IMRT) with a simultaneous integrated boost (SIB) in locally advanced NSCLC. METHODS: We enrolled twenty patients. Five different dose plans were generated for each patient. All plans were prescribed a dose of 60 Gy to the planning tumor volume (PTV)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28589434/outcome-and-toxicity-of-intensity-modulated-radiotherapy-with-simultaneous-integrated-boost-in-locally-advanced-non-small-cell-lung-cancer-patients
#20
A Fondevilla Soler, J L López-Guerra, M Dzugashvili, P Sempere Rincón, A Sautbaet, P Castañeda, J M Díaz, J M Praena-Fernandez, E Rivin Del Campo, I Azinovic
PURPOSE: The aim of this study was to assess the feasibility and treatment outcome of intensity modulated radiation therapy with simultaneous integrated boost (SIB-IMRT) in locally advanced non-small cell lung cancer (NSCLC) patients. MATERIALS AND METHODS: A total of 64 NSCLC patients with stage IIB (3%), IIIA (36%), and IIIB (61%) were treated with concomitant (N = 47; 73%) or sequential (N = 9; 14%) chemotherapy between February 2009 and January 2014. Eight patients (13%) received RT alone...
June 6, 2017: Clinical & Translational Oncology
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