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https://www.readbyqxmd.com/read/28980836/11c-choline-pet-guided-stereotactic-body-radiation-therapy-for-lymph-node-metastases-in-oligometastatic-prostate-cancer
#1
Ciro Franzese, Egesta Lopci, Lucia Di Brina, Giuseppe Roberto D'Agostino, Pierina Navarria, Pietro Mancosu, Stefano Tomatis, Arturo Chiti, Marta Scorsetti
INTRODUCTION: aim is outcome of 11C-Choline-PET guided SBRT on lymph node metastases. MATERIALS AND METHODS: patients with 1 - 4 lymph node metastases detected by 11C-choline-PET were treated with SBRT. Toxicity, treated metastases control and Progression Free Survival were computed. RESULTS: twenty-six patients, 38 lymph node metastases were irradiated. No grade ≥ 2 toxicity. Median PSA-nadir after RT was 1.02 ng/mL. Post-treatment 11C-Choline-PET showed metabolic complete response in 17 metastases (44,7%), partial response in 9 metastases (38%)...
October 5, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28939229/photon-and-proton-radiation-therapy-utilization-in-a-population-of-more-than-100-million-commercially-insured-patients
#2
Mark R Waddle, Terence T Sio, Holly K Van Houten, Robert L Foote, Sameer R Keole, Steven E Schild, Nadia Laack, Thomas B Daniels, William Crown, Nilay D Shah, Robert C Miller
PURPOSE: To characterize the changes in the use of radiation therapy (RT), specifically proton beam radiation therapy (PBRT), among adult and pediatric patients over a 11-year period in a very large population of insured patients. METHODS AND MATERIALS: We conducted a retrospective analysis of the OptumLabs Data Warehouse claims database of more than 100 million insured US enrollees. Descriptive analyses were undertaken to evaluate the characteristics of patients receiving RT from 2002 to 2012...
August 2, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28935181/comparison-of-multi-leaf-collimator-tracking-and-treatment-couch-tracking-during-stereotactic-body-radiation-therapy-of-prostate-cancer
#3
Stefanie Ehrbar, Simon Schmid, Alexander Jöhl, Stephan Klöck, Matthias Guckenberger, Oliver Riesterer, Stephanie Tanadini-Lang
PURPOSE AND BACKGROUND: Motion mitigation during prostate stereotactic body radiation therapy (SBRT) ensures optimal target coverage while reducing the risk of overdosage of nearby organs. The geometrical and dosimetrical performance of motion mitigation with the multileaf-collimator (MLC tracking) or the treatment couch (couch tracking) were compared. MATERIAL AND METHODS: For ten prostate patients, SBRT treatment plans with integrated boosts were prepared using volumetric modulated arc technique...
September 18, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28917253/re-irradiation-with-stereotactic-body-radiation-therapy-sbrt
#4
Morten Høyer
Stereotactic body radiation therapy (SBRT) is a potential treatment option for patients who develop a relapse within or marginal to a previously irradiated volume, but it seems underused because of sparse knowledge on the efficacy and morbidity related to the treatment. Normal tissues often recover some of the damage caused by the primary radiotherapy with time, but the kinetics of recovery is not clearly described in the literature. There is a growing number of publications on SBRT reirradiation, but the literature consists mainly of retrospective cohort studies...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28917250/emerging-technologies-in-stereotactic-body-radiotherapy
#5
Lijun Ma, Lei Wang, Chia-Lin Tseng, Arjun Sahgal
Stereotactic body radiation therapy (SBRT) stems from the initial developments of intra-cranial stereotactic radiosurgery (SRS). Despite similarity in their names and clinical goals of delivering a sufficiently high tumoricidal dose, maximal sparing of the surrounding normal tissues and a short treatment course, SBRT technologies have transformed from the early days of body frame-based treatments with X-ray verification to primarily image-guided procedures with cone-beam CT or stereoscopic X-ray systems and non-rigid body immo-bilization...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28917248/stereotactic-body-radiation-therapy-for-prostate-cancer-a-review
#6
Waqar Haque, E Brian Butler, Bin S Teh
Prostate cancer can be managed with external beam radiation therapy, delivered with either protons or photons, brachytherapy, surgery, or active surveillance. Advances in imaging and radiation therapy delivery have allowed treatment of prostate cancer using ultra-hypofractionated radiation therapy with a high dose per fraction using a technique called stereotactic body radiation therapy (SBRT). While no randomized trials have compared the efficacy of SBRT to conventionally fractionated radiation therapy (CFRT), numerous prospective trials and retrospective reviews have demonstrated the safety and efficacy of SBRT for localized prostate cancer, used either definitively or as a boost along with CFRT...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28916284/stereotactic-body-radiotherapy-versus-low-dose-rate-brachytherapy-for-localised-prostate-cancer-a-cost-utility-analysis
#7
J Helou, S Torres, H B Musunuru, J Raphael, P Cheung, D Vesprini, H T Chung, L D'Alimonte, M Krahn, G Morton, A Loblaw
AIMS: To conduct a cost-utility analysis comparing stereotactic body radiotherapy (SBRT) with low dose rate brachytherapy (LDR-BT) for localised prostate cancer (PCa). MATERIALS AND METHODS: A decision-analytic Markov model was developed from the healthcare payer perspective to simulate the history of a 66-year-old man with low-risk PCa. The model followed patients yearly over their remaining lifetimes. Health states included 'recurrence-free', 'biochemical recurrence' (BR), 'metastatic' and 'death'...
November 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28913176/propensity-score-matched-comparison-of-intensity-modulated-radiation-therapy-vs-stereotactic-body-radiation-therapy-for-localized-prostate-cancer-a-survival-analysis-from-the-national-cancer-database
#8
Anthony Ricco, Alexandra Hanlon, Rachelle Lanciano
PURPOSE: No direct comparisons between extreme hypofractionation and conventional fractionation have been reported in randomized trials for the treatment of localized prostate cancer. The goal of this study is to use a propensity score matched (PSM) analysis with the National Cancer Database (NCDB) for the comparison of stereotactic body radiation therapy (SBRT) and intensity modulated radiation therapy (IMRT) for organ confined prostate cancer. METHODS: Men with localized prostate cancer treated with radiation dose ≥72 Gy for IMRT and ≥35 Gy for SBRT to the prostate only were abstracted from the NCDB...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28888746/-toxicity-and-quality-of-life-comparison-of-iodine-125%C3%A2-brachytherapy-and-stereotactic-radiotherapy-for-prostate-cancers
#9
REVIEW
K Gnep, T Lizée, B Campillo-Gimenez, G Delpon, S Droupy, L Perrier, R de Crevoisier
Quality of life is a major issue for good prognostic prostate cancer, for which brachytherapy is one of the reference treatments. Stereotactic Body Radiotherapy (SBRT) is a recent alternative however not yet validated as a standard treatment. This review of the literature reports and compares the toxicities and the quality of life, either after exclusive brachytherapy with iodine 125 or after SBRT. The comparison is made with the limitations of the absence of randomized trial comparing the two treatment techniques...
October 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28833242/online-dose-reconstruction-for-tracked-volumetric-arc-therapy-real-time-implementation-and-offline-quality-assurance-for-prostate-sbrt
#10
Cornelis Ph Kamerling, Martin F Fast, Peter Ziegenhein, Martin J Menten, Simeon Nill, Uwe Oelfke
PURPOSE: Firstly, this study provides a real-time implementation of online dose reconstruction for tracked volumetric arc therapy (VMAT). Secondly, this study describes a novel offline quality assurance tool, based on commercial dose calculation algorithms. METHODS: Online dose reconstruction for VMAT is a computationally challenging task in terms of computer memory usage and calculation speed. To potentially reduce the amount of memory used, we analyzed the impact of beam angle sampling for dose calculation on the accuracy of the dose distribution...
August 20, 2017: Medical Physics
https://www.readbyqxmd.com/read/28821268/hypo-fractionated-sbrt-for-localized-prostate-cancer-a-german-bi-center-single-treatment-group-feasibility-trial
#11
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/28820285/oligometastatic-cancer-stereotactic-ablative-radiotherapy-for-patients-affected-by-isolated-body-metastasis
#12
Andrea Lancia, Gianluca Ingrosso, Alessandra Carosi, Luana Di Murro, Emilia Giudice, Sara Cicchetti, Pasquale Morelli, Daniela di Cristino, Claudia Bruni, Alessandra Murgia, Alessandro Cancelli, Irene Turturici, Anjali Iadevaia, Elisabetta Ponti, Riccardo Santoni
BACKGROUND: To evaluate the outcome of patients affected by a single isolated body metastasis treated with stereotactic body radiotherapy (SBRT). MATERIAL AND METHODS: Seven-eight patients were treated with SBRT for isolated body metastasis. The most frequent primary tumor was prostate cancer (28.2%), followed by colorectal cancer (23.1%) and lung cancer (20.5%). Median age at diagnosis of oligometastatic disease was 70 years (range 47-88). Median Karnofsky Performance Status (KPS) was 90 (range 70-100)...
August 18, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28801240/exploring-all-avenues-for-radiotherapy-in-oligorecurrent-prostate-cancer-disease-limited-to-lymph-nodes-a-systematic-review-of-the-role-of-stereotactic-body-radiotherapy
#13
REVIEW
Elisabetta Ponti, Andrea Lancia, Piet Ost, Fabio Trippa, Luca Triggiani, Beatrice Detti, Gianluca Ingrosso
CONTEXT: Stereotactic body radiotherapy (SBRT) is emerging as a treatment option in patients affected by oligorecurrent prostate cancer disease limited to lymph nodes, a subgroup of patients who would otherwise be treated only with androgen deprivation therapy (ADT). OBJECTIVE: To perform a systematic review of SBRT for oligorecurrent prostate cancer limited to lymph nodes. EVIDENCE ACQUISITION: We performed a systematic review of PubMed/Medline in October 2016 according to the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA)...
August 8, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28794640/volumetric-modulated-arc-therapy-for-treatment-of-solid-tumors-current-insights
#14
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/28791252/prostate-specific-antigen-5-years-following-stereotactic-body-radiation-therapy-for-low-and-intermediate-risk-prostate-cancer-an-ablative-procedure
#15
Shaan Kataria, Harsha Koneru, Shan Guleria, Malika Danner, Marilyn Ayoob, Thomas Yung, Siyuan Lei, Brian T Collins, Simeng Suy, John H Lynch, Thomas Kole, Sean P Collins
BACKGROUND: Our previous work on early PSA kinetics following prostate stereotactic body radiation therapy (SBRT) demonstrated that an initial rapid and then slow PSA decline may result in very low PSA nadirs. This retrospective study sought to evaluate the PSA nadir 5 years following SBRT for low- and intermediate-risk prostate cancer (PCa). METHODS: 65 low- and 80 intermediate-risk PCa patients were treated definitively with SBRT to 35-37.5 Gy in 5 fractions at Georgetown University Hospital between January 2008 and October 2011...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28774760/dosimetric-comparison-of-rectal-sparing-capabilities-of-rectal-balloon-vs-injectable-spacer-gel-in-stereotactic-body-radiation-therapy-for-prostate-cancer-lessons-learned-from-prospective-trials
#16
Ryan T Jones, Nima Hassan Rezaeian, Neil B Desai, Yair Lotan, Xun Jia, Raquibul Hannan, D W Nathan Kim, Brad Hornberger, Jeffrey Dubas, Aaron M Laine, Michael J Zelefsky, Robert D Timmerman, Michael R Folkert
This study aimed to compare the rectal-sparing capabilities of rectal balloons vs absorbable injectable spacer gel in stereotactic body radiation therapy (SBRT) for prostate cancer. Patient samples included in this analysis were obtained from 2 multi-institutional prospective trials of SBRT for prostate cancer using a rectal balloon (n = 36 patients) and injectable spacer gel (n = 36). Treatment prescription dose was 45 Gy in 5 fractions in 42 patients; for equal comparison, the remaining 30 patients were rescaled to 45 Gy from 47...
July 31, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28766904/technical-note-trog-15-01-spark-trial-multi-institutional-imaging-dose-measurement
#17
Kimberley Legge, Peter B Greer, Paul J Keall, Jeremy T Booth, Sankar Arumugam, Trevor Moodie, Doan T Nguyen, Jarad Martin, Daryl John O'Connor, Joerg Lehmann
PURPOSE: The Trans-Tasman Radiation Oncology Group (TROG) 15.01 Stereotactic Prostate Adaptive Radiotherapy utilizing Kilovoltage intrafraction monitoring (SPARK) trial is a multicenter trial using Kilovoltage Intrafraction Monitoring (KIM) to monitor prostate position during the delivery of prostate radiation therapy. KIM increases the accuracy of prostate radiation therapy treatments and allows for hypofractionation. However, an additional imaging dose is delivered to the patient. A standardized procedure to determine the imaging dose per frame delivered using KIM was developed and applied at four radiation therapy centers on three different types of linear accelerator...
August 2, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28749165/impact-of-robotic-ultrasound-image-guidance-on-plan-quality-in-sbrt-of-the-prostate
#18
Stefan Gerlach, Ivo Kuhlemann, Floris Ernst, Christoph Fürweger, Alexander Schlaefer
OBJECTIVE: Ultrasound provides good image quality, fast volumetric imaging and is established for abdominal image guidance. Robotic transducer placement may facilitate intrafractional motion compensation in radiation therapy. We consider integration with the CyberKnife and study whether the kinematic redundancy of a seven-degrees-of-freedom robot allows for acceptable plan quality for prostate treatments. METHODS: Reference treatment plans were generated for 10 prostate cancer cases previously treated with the CyberKnife...
October 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28739142/radiation-therapy-for-oligorecurrence-in-prostate-cancer-preliminary-results-of-our-centre
#19
C González Ruiz de León, M Ramírez Backhaus, M Sobrón Bustamante, J Casaña, L Arribas, J Rubio-Briones
INTRODUCTION AND OBJECTIVE: There is growing interest in the use of more aggressive therapeutic modalities for treating metastatic prostate cancer. In this study, we examine the use of stereotactic body radiation therapy (SBRT) for patients with oligorecurrent prostate cancer. We analysed the biochemical response and toxicity of patients who underwent this therapy at our centre. MATERIAL AND METHOD: We selected patients who experienced oligorecurrence between January 2015 to December 2016 and were administered SBRT...
July 21, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28712283/stereotactic-radiotherapy-of-the-prostate-fractionation-and-utilization-in-the-united-states
#20
Joseph P Weiner, David Schwartz, Meng Shao, Virginia Osborn, Kwang Choi, David Schreiber
PURPOSE: To analyze the utilization and fractionation of extreme hypofractionation via stereotactic body radiotherapy (SBRT) in the treatment of prostate cancer. MATERIALS AND METHODS: Data was analyzed on men diagnosed with localized prostate cancer between 2004-2012 and treated with definitive-intent radiation therapy, as captured in the National Cancer Database. This database is a hospital-based registry that collects an estimated 70% of all diagnosed malignancies in the United States...
June 2017: Radiation Oncology Journal
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