keyword
MENU ▼
Read by QxMD icon Read
search

Robotized radiosurgery

keyword
https://www.readbyqxmd.com/read/28983373/rectal-toxicity-after-extremely-hypofractionated-radiotherapy-using-a-non-isocentric-robotic-radiosurgery-system-for-early-stage-prostate-cancer
#1
Naoto Shikama, Yu Kumazaki, Kazunari Miyazawa, Keiji Nihei, Shinpei Hashimoto, Nobuhiro Tsukamoto
BACKGROUND: The aim of the study was to evaluate toxicity after extremely hypofractionated radiotherapy (EHF-RT) using a non-isocentric robotic radiosurgery system for early stage prostate cancer. METHODS: Eligibility criteria of this feasibility study were 50 - 84 years old, and low-risk to intermediate-risk disease. The prescribed dose to the iso-dose line of 95% of planning target volume was 35 Gy in five fractions over 2 weeks. The primary endpoint was the incidence of ≥ grade 2 acute toxicity which indicated symptoms requiring medications...
December 2016: World Journal of Oncology
https://www.readbyqxmd.com/read/28917250/emerging-technologies-in-stereotactic-body-radiotherapy
#2
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/28856078/participating-in-an-international-stereotactic-radiotherapy-patient-registry-the-establishment-of-data-collection-pathways
#3
Aylin Yahya, Eva Arneric, Elizabeth Kernutt, Fiona Baldacchino, Claire Haworth, Mary-Anne Kedda, Colin Tang, Sean Bydder, Tammy Corica
Aim To describe data collection pathways and practical challenges experienced by an academic comprehensive cancer centre aiming to record clinical data for patients being treated with a novel radiotherapy treatment modality. Methods Various options to capture data from all patients treated with the CyberKnife Robotic Radiosurgery System at Sir Charles Gairdner Hospital (SCGH) in Western Australia were explored. An international multicenter web-based secure database established and maintained by the Radiosurgery Society the RSSearch® Patient Registry was selected...
June 29, 2017: Curēus
https://www.readbyqxmd.com/read/28821268/hypo-fractionated-sbrt-for-localized-prostate-cancer-a-german-bi-center-single-treatment-group-feasibility-trial
#4
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/28818094/radiotoxicity-in-robotic-radiosurgery-proposing-a-new-quality-index-for-optimizing-the-treatment-planning-of-brain-metastases
#5
Alexandra Hellerbach, Klaus Luyken, Mauritius Hoevels, Andreas Gierich, Daniel Rueß, Wolfgang W Baus, Martin Kocher, Maximilian I Ruge, Harald Treuer
BACKGROUND: As irradiated brain volume at 12 Gy (V12) is a predictor for radionecrosis, the purpose of the study was to develop a model for Cyberknife (CK) plans that is able to predict the lowest achievable V12 at a given tumor size and prescription dose (PD), and to suggest a new quality index regarding V12 for optimizing the treatment planning of brain metastases. METHOD: In our model V12 was approximated as a spherical shell around the tumor volume. The radial distance between tumor surface and the 12 Gy isodose line was calculated using an approximation of the mean dose gradient in that area...
August 17, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28711188/plan-delivery-quality-assurance-for-cyberknife-statistical-process-control-analysis-of-350-film-based-patient-specific-qas
#6
J Bellec, N Delaby, F Jouyaux, M Perdrieux, J Bouvier, S Sorel, O Henry, C Lafond
PURPOSE: Robotic radiosurgery requires plan delivery quality assurance (DQA) but there has never been a published comprehensive analysis of a patient-specific DQA process in a clinic. We proposed to evaluate 350 consecutive film-based patient-specific DQAs using statistical process control. We evaluated the performance of the process to propose achievable tolerance criteria for DQA validation and we sought to identify suboptimal DQA using control charts. METHODS AND MATERIAL: DQAs were performed on a CyberKnife-M6 using Gafchromic-EBT3 films...
July 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28691256/clinical-usefulness-of-mlcs-in-robotic-radiosurgery-systems-for-prostate-sbrt
#7
Masashi Tomida, Takeshi Kamomae, Junji Suzuki, Yoichi Ohashi, Yoshiyuki Itoh, Hiroshi Oguchi, Takahito Okuda
Stereotactic body radiation therapy (SBRT) using recently introduced multileaf collimators (MLC) is preferred over circular collimators in the treatment of localized prostate cancer. The objective of this study was to assess the clinical usefulness of MLCs in prostate SBRT by comparing the effectiveness of treatment plans using fixed collimators, variable collimators, and MLCs and by ensuring delivery quality assurance (DQA) for each. For each patient who underwent conventional radiation therapy for localized prostate cancer, mock SBRT plans were created using a fixed collimator, a variable collimator, and an MLC...
July 10, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28587014/stereotactic-robotic-radiosurgery-for-1-3-brain-metastases-from-non-small-cell-lung-cancer-a-single-institutional-experience-from-south-india
#8
L G, V Agarwal, K Swamy, S Bhattacharjee, R Rao, B Ajai Kumar, S Ps
No abstract text is available yet for this article.
May 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28567503/planning-benchmark-study-for-sbrt-of-early-stage-nsclc-results-of-the-degro-working-group-stereotactic-radiotherapy
#9
Christos Moustakis, Oliver Blanck, Fatemeh Ebrahimi Tazehmahalleh, Mark Ka Heng Chan, Iris Ernst, Thomas Krieger, Marciana-Nona Duma, Markus Oechsner, Ute Ganswindt, Christian Heinz, Horst Alheit, Hilbert Blank, Ursula Nestle, Rolf Wiehle, Christine Kornhuber, Christian Ostheimer, Cordula Petersen, Gerhard Pollul, Wolfgang Baus, Georg Altenstein, Eric Beckers, Katrin Jurianz, Florian Sterzing, Matthias Kretschmer, Heinrich Seegenschmiedt, Torsten Maass, Stefan Droege, Ulrich Wolf, Juergen Schoeffler, Uwe Haverkamp, Hans Theodor Eich, Matthias Guckenberger
PURPOSE: The aim was to evaluate stereotactic body radiation therapy (SBRT) treatment planning variability for early stage nonsmall cell lung cancer (NSCLC) with respect to the published guidelines of the Stereotactic Radiotherapy Working Group of the German Society for Radiation Oncology (DEGRO). MATERIALS AND METHODS: Planning computed tomography (CT) scan and the structure sets (planning target volume, PTV; organs at risk, OARs) of 3 patients with early stage NSCLC were sent to 22 radiotherapy departments with SBRT experience: each department was asked to prepare a treatment plan according to the DEGRO guidelines...
May 31, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28544809/robotic-radiosurgery-of-head-and-neck-paragangliomas-a-single-institution-experience
#10
İlker Tosun, Banu Atalar, Bilgehan Şahin, Görkem Güngör, Gökhan Aydin, Bülent Yapici, Enis Özyar
AIM: CyberKnife(®) is a robotic stereotactic radiotherapy system. The aim of this study is to evaluate the effectiveness and the safety of CyberKnife(®) on treating head and neck paragangliomas and to report our results. METHODS: Between March 2009 and June 2014, 12 patients with head and neck paragangliomas have been referred to our clinic: in three cases had jugular paragangliomas, five cases had carotid body paragangliomas and three cases had tympanic paragangliomas...
May 24, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28535920/cyberknife%C3%A2-m6%C3%A2-peripheral-dose-evaluation-for-brain-treatments
#11
N Delaby, J Bellec, J Bouvier, F Jouyaux, M Perdrieux, J Castelli, I Lecouillard, J P Manens, C Lafond
PURPOSE: This study evaluates the peripheral dose (PD) delivered to healthy tissues for brain stereotactic radiotherapy treatments (SRT) performed with a CyberKnife M6™ Robotic Radiosurgery System and proposes a model to estimate PD before treatment. METHOD: PD was measured with thermoluminescent dosimeters. Measurements were performed to evaluate the influence of distance, collimator type (fixed or Iris™) and aperture size on PD for typical brain treatment plans simulated on an anthropomorphic phantom...
May 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28490981/robotic-radiosurgery-for-the-treatment-of-liver-metastases
#12
Rafael García, Iciar Santa-Olalla, Jose Luis Lopez Guerra, Silvia Sanchez, Ignacio Azinovic
AIM: This study evaluates the toxicity and outcome in patients treated with robotic radiosurgery for liver metastases. BACKGROUND: Modern technologies allow the delivery of high doses to the liver metastases while lowering the dose to the neighboring organs at risk. Whether this dosimetric advantage translates into clinical benefit is not well known yet. METHODS AND MATERIALS: A total of 9 patients with 17 liver metastases have been treated with robotic stereotactic body radiotherapy SBRT from March 2011 to December 2014...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28451479/robotic-radiosurgery-for-adrenal-gland-metastases
#13
Alfred Haidenberger, Sarah-Charlotta Heidorn, Nikolaus Kremer, Alexander Muacevic, Christoph Fürweger
INTRODUCTION: The purpose of this study was to investigate the safety and efficacy of CyberKnife (CK) robotic radiosurgery for treatment of adrenal metastases. METHODS: We performed a retrospective analysis of 23 patients with adrenal metastases who had been treated with CK between October 2006 and December 2015. Fifteen patients received chemotherapy prior to radiosurgery, all patients underwent computer tomography (CT) fluoroscopically guided percutaneous placement of one to three gold fiducials into the adrenal gland...
March 26, 2017: Curēus
https://www.readbyqxmd.com/read/28425348/integration-of-functional-mri-and-white-matter-tractography-in-cyberknife-radiosurgery
#14
Lu Sun, Baolin Qu, Jinyuan Wang, Zhongjian Ju, Zizhong Zhang, Zhiqiang Cui, Yang Jack, Zhipei Ling, Xinguang Yu, Longsheng Pan
PURPOSE: To investigate the efficacy of the integration of functional magnetic resonance imaging and diffusion-tensor imaging tractography data into CyberKnife radiosurgery for intracranial tumor management. MATERIALS AND METHODS: Functional neuroimaging, anatomical magnetic resonance imaging, and computed tomography images of patients with brain lesions in critical areas were acquired before radiosurgery. The acquired data sets were coregistered using the MIM image fusion software module and then were imported into the CyberKnife Robotic Radiosurgery System (Multiplan 4...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28387434/incidence-of-secondary-glaucoma-after-treatment-of-uveal-melanoma-with-robotic-radiosurgery-versus-brachytherapy
#15
Jakob Siedlecki, Veronika Reiterer, Simon Leicht, Paul Foerster, Karsten Kortüm, Ulrich Schaller, Siegfried Priglinger, Christoph Fuerweger, Alexander Muacevic, Kirsten Eibl-Lindner
PURPOSE: Different modalities of radiation therapy nowadays allow for effective treatment of uveal melanoma combined with the advantage of eye preservation. However, this advantage can secondarily be impaired by radiation-related side effects. After local recurrence, secondary glaucoma (SG) has been described as second most frequent complication leading to need of enucleation. This study compares the incidence of SG after conventional Ruthenium (Ru)-106 brachytherapy (BT) versus CyberKnife robotic radiosurgery (RRS) which has been gaining importance lately as an efficient treatment option offering improved patient comfort...
April 7, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28350952/future-advances-in-spine-surgery-the-aospine-north-america-perspective
#16
Michael G Fehlings, Christopher S Ahuja, Thomas Mroz, Wellington Hsu, James Harrop
This focus issue highlights state-of-the-art techniques, equipment, and practices in the modern era of spine surgery while providing a glimpse into the next generation of patient care. A broad range of topics are presented to cover the full spectrum of the field. Degenerative diseases are discussed in a series of 3 articles on (1) pathophysiology, management, and surgical approaches to degenerative cervical myelopathy; (2) novel approaches to degenerative thoracolumbar disease (eg, interspinous process spacers, minimally invasive/endoscopic approaches); and (3) animal models and emerging therapeutics in degenerative disk disease...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28297348/inverse-treatment-planning-for-spinal-robotic-radiosurgery-an-international-multi-institutional-benchmark-trial
#17
MULTICENTER STUDY
Oliver Blanck, Lei Wang, Wolfgang Baus, Jimm Grimm, Thomas Lacornerie, Joakim Nilsson, Sergii Luchkovskyi, Isabel Palazon Cano, Zhenyu Shou, Myriam Ayadi, Harald Treuer, Romain Viard, Frank-Andre Siebert, Mark K H Chan, Guido Hildebrandt, Jürgen Dunst, Detlef Imhoff, Stefan Wurster, Robert Wolff, Pantaleo Romanelli, Eric Lartigau, Robert Semrau, Scott G Soltys, Achim Schweikard
Stereotactic radiosurgery (SRS) is the accurate, conformal delivery of high-dose radiation to well-defined targets while minimizing normal structure doses via steep dose gradients. While inverse treatment planning (ITP) with computerized optimization algorithms are routine, many aspects of the planning process remain user-dependent. We performed an international, multi-institutional benchmark trial to study planning variability and to analyze preferable ITP practice for spinal robotic radiosurgery. 10 SRS treatment plans were generated for a complex-shaped spinal metastasis with 21 Gy in 3 fractions and tight constraints for spinal cord (V14Gy<2 cc, V18Gy<0...
May 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28089192/commissioning-monte-carlo-algorithm-for-robotic-radiosurgery-using-cylindrical-3d-array-with-variable-density-inserts
#18
D Dechambre, V Baart, S Cucchiaro, C Ernst, N Jansen, P Berkovic, C Mievis, P Coucke, A Gulyban
INTRODUCTION: To commission the Monte Carlo (MC) algorithm based model of CyberKnife robotic stereotactic system (CK) and evaluate the feasibility of patient specific QA using the ArcCHECK cylindrical 3D-array (AC) with Multiplug inserts (MP). RESULTS: Four configurations were used for simple beam setup and two for patient QA, replacing water equivalent inserts by lung. For twelve collimators (5-60mm) in simple setup, mean (SD) differences between MC and RayTracing algorithm (RT) of the number of points failing the 3%/1mmgamma criteria were 1(1), 1(3), 1(2) and 1(2) for the four MP configurations...
January 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28048884/th-ef-204-02-small-field-radiation-therapy-physics-and-recent-recommendations-from-iaea-and-icru
#19
J Seuntjens
Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT). SRT is characterized by sharp dose gradients for individual fields and their resultant dose distributions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048509/th-a-brc-03-aapm-tg218-measurement-methods-and-tolerance-levels-for-patient-specific-imrt-verification-qa
#20
M Miften
AAPM TG-135U1 QA for Robotic Radiosurgery - Sonja Dieterich Since the publication of AAPM TG-135 in 2011, the technology of robotic radiosurgery has rapidly developed. AAPM TG-135U1 will provide recommendations on the clinical practice for using the IRIS collimator, fiducial-less real-time motion tracking, and Monte Carlo based treatment planning. In addition, it will summarize currently available literature about uncertainties. LEARNING OBJECTIVES: 1. Understand the progression of technology since the first TG publication 2...
June 2016: Medical Physics
keyword
keyword
117678
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"