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Robotic sbrt

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https://www.readbyqxmd.com/read/29753550/rescue-procedure-for-an-electrical-storm-using-robotic-non-invasive-cardiac-radio-ablation
#1
Raphaël Jumeau, Mahmut Ozsahin, Juerg Schwitter, Véronique Vallet, Frédéric Duclos, Michele Zeverino, Raphaël Moeckli, Etienne Pruvot, Jean Bourhis
Stereotactic body radiotherapy (SBRT) is an emerging non-invasive treatment in the management of ventricular tachycardia (VT). We report here an intensive care patient suffering from an electrical storm due to incessant VT, unresponsive to catheter ablation and anti-arrhythmic drugs, showing an immediate and durable response to electrophysiology-guided cardiac SBRT.
May 9, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29749569/postoperative-hypofractionated-stereotactic-brain-radiation-hsrt-for-resected-brain-metastases-improved-local-control-with-higher-bed-10
#2
Aryavarta M S Kumar, Jonathan Miller, Seth A Hoffer, David B Mansur, Michael Coffey, Simon S Lo, Andrew E Sloan, Mitchell Machtay
INTRODUCTION: HSRT directed to large surgical beds in patients with resected brain metastases improves local control while sparing patients the toxicity associated with whole brain radiation. We review our institutional series to determine factors predictive of local failure. METHODS: In a total of 39 consecutive patients with brain metastases treated from August 2011 to August 2016, 43 surgical beds were treated with HSRT in three or five fractions. All treatments were completed on a robotic radiosurgery platform using the 6D Skull tracking system...
May 10, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29724584/stereotactic-body-radiation-therapy-for-heart-base-tumors-in-six-dogs
#3
L M Magestro, T L Gieger, M W Nolan
INTRODUCTION: Heart-base tumors are increasingly treated with radiotherapy, yet safety and efficacy are incompletely understood. This case series describes outcomes after stereotactic body radiation therapy (SBRT) for presumed chemodectoma. ANIMALS: Six pet dogs. METHODS: A retrospective study was performed, including dogs with a clinical diagnosis of chemodectoma and treatment with three-fraction SBRT (30 Gy total). RESULTS: Heart-base tumors, presumed or confirmed to be chemodectomas, were diagnosed via histopathology or imaging...
April 30, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29700954/influence-of-respiratory-motion-management-technique-on-radiation-pneumonitis-risk-with-robotic-stereotactic-body-radiation-therapy
#4
Christopher H Chapman, Christopher McGuinness, Alexander R Gottschalk, Sue S Yom, Adam A Garsa, Mekhail Anwar, Steve E Braunstein, Atchar Sudhyadhom, Paul Keall, Martina Descovich
PURPOSE/OBJECTIVES: For lung stereotactic body radiation therapy (SBRT), real-time tumor tracking (RTT) allows for less radiation to normal lung compared to the internal target volume (ITV) method of respiratory motion management. To quantify the advantage of RTT, we examined the difference in radiation pneumonitis risk between these two techniques using a normal tissue complication probability (NTCP) model. MATERIALS/METHOD: 20 lung SBRT treatment plans using RTT were replanned with the ITV method using respiratory motion information from a 4D-CT image acquired at the original simulation...
April 26, 2018: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29404626/direct-dose-correlation-of-mri-morphologic-alterations-of-healthy-liver-tissue-after-robotic-liver-sbrt
#5
Judit Boda-Heggemann, Anika Jahnke, Mark K H Chan, Leila S Ghaderi Ardekani, Peter Hunold, Jost Philipp Schäfer, Stefan Huttenlocher, Stefan Wurster, Dirk Rades, Guido Hildebrandt, Frank Lohr, Jürgen Dunst, Frederik Wenz, Oliver Blanck
PURPOSE: For assessing healthy liver reactions after robotic SBRT (stereotactic body radiotherapy), we investigated early morphologic alterations on MRI (magnetic resonance imaging) with respect to patient and treatment plan parameters. PATIENTS AND METHODS: MRI data at 6-17 weeks post-treatment from 22 patients with 42 liver metastases were analyzed retrospectively. Median prescription dose was 40 Gy delivered in 3-5 fractions. T2- and T1-weighted MRI were registered to the treatment plan...
May 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29326012/stereotactic-body-radiotherapy-sbrt-for-patients-with-locally-advanced-pancreatic-cancer-a-single-center-experience
#6
Raphaël Jumeau, Guila Delouya, David Roberge, David Donath, Dominic Béliveau-Nadeau, Marie-Pierre Campeau
INTRODUCTION: Despite advances in treatment, notably in systemic therapy, the prognosis of pancreatic adenocarcinoma (PADC) remains dismal. Stereotactic body radiotherapy (SBRT) is an emerging tool in the complex management of PADC. We review outcomes of SBRT for PADC at our institution. METHODS: We reviewed patients treated with SBRT for either unresectable PADC or locally recurrent PADC after surgery. Treatment was delivered using a robotic radiosurgery system with respiratory tracking...
April 2018: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29158680/analysis-of-the-factors-affecting-the-safety-of-robotic-stereotactic-body-radiation-therapy-for-hepatocellular-carcinoma-patients
#7
Xiaojie Liu, Yongchun Song, Ping Liang, Tingshi Su, Huojun Zhang, Xianzhi Zhao, Zhiyong Yuan, Ping Wang
Objective: The objective of this study was to investigate the safety of robotic stereotactic body radiation therapy (SBRT) for hepatocellular carcinoma (HCC) patients and its related factors. Methods: A total of 74 HCC patients with Child-Turcotte-Pugh (CTP) Class A were included in a multi-institutional, single-arm Phase II trial (NCT 02363218) between February 2013 and August 2016. All patients received SBRT treatment at a dose of 45 Gy/3f. The liver function was compared before and after SBRT treatment by the analysis of adverse hepatic reactions and changes in CTP classification...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29052514/five-fraction-sbrt-for-ultra-central-nsclc-in-field-recurrences-following-high-dose-conventional-radiation
#8
Michael C Repka, Nima Aghdam, Shaan K Kataria, Lloyd Campbell, Simeng Suy, Sean P Collins, Eric Anderson, Jonathan W Lischalk, Brian T Collins
PURPOSE/OBJECTIVE: Local treatment options for patients with in-field non-small cell lung cancer (NSCLC) recurrence following conventionally fractionated external beam radiation therapy (CF-EBRT) are limited. Stereotactic body radiation therapy (SBRT) is a promising modality to achieve reasonable local control, although toxicity remains a concern. MATERIALS/METHODS: Patients previously treated with high-dose CF-EBRT (≥59.4 Gy, ≤3 Gy/fraction) for non-metastatic NSCLC who underwent salvage SBRT for localized ultra-central in-field recurrence were included in this analysis...
October 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28920500/acute-toxicity-of-the-bowel-after-stereotactic-robotic-radiotherapy-for-abdominopelvic-oligometastases
#9
Michael Frelinghuysen, Wilco Schillemans, Lieke Hol, Cornelis Verhoef, Mischa Hoogeman, Joost Jan Nuyttens
AIM: To correlate dose-volume histogram (DVH) parameters with appearance of grade ≥2 acute and late gastrointestinal toxicity of stereotactic body radiotherapy (SBRT) in patients with abdominopelvic solitary or oligometastatic disease outside the liver. MATERIAL AND METHODS: Acute and late bowel toxicity of 84 abdominopelvic oligometastatic patients was registered. A logistic regression was performed between different DVH parameters and presence of grade ≥2 acute and late toxicity...
September 18, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28917250/emerging-technologies-in-stereotactic-body-radiotherapy
#10
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/28875297/breathing-motion-compensated-robotic-guided-stereotactic-body-radiation-therapy-patterns-of-failure-analysis
#11
Susanne Stera, Panagiotis Balermpas, Mark K H Chan, Stefan Huttenlocher, Stefan Wurster, Christian Keller, Detlef Imhoff, Dirk Rades, Jürgen Dunst, Claus Rödel, Guido Hildebrandt, Oliver Blanck
PURPOSE: We retrospectively evaluated the patterns of failure for robotic guided real-time breathing-motion-compensated (BMC) stereotactic body radiation therapy (SBRT) in the treatment of tumors in moving organs. PATIENTS AND METHODS: Between 2011 and 2016, a total of 198 patients with 280 lung, liver, and abdominal tumors were treated with BMC-SBRT. The median gross tumor volume (GTV) was 12.3 cc (0.1-372.0 cc). Medians of mean GTV BEDα/β = 10  Gy (BED = biological effective dose) was 148...
February 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28870966/robot-assisted-extracranial-stereotactic-radiotherapy-of-adrenal-metastases-in-oligometastatic-non-small-cell-lung-cancer
#12
Eren Celik, Robert Semrau, Christian Baues, Maike Trommer-Nestler, Wolfgang Baus, Simone Marnitz
AIM: The aim of this study was to evaluate the efficacy and toxicity of stereotactic body radiation therapy (SBRT) in the treatment of patients with adrenal metastases in oligometastatic non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS: Between November 2012 and May 2015, fifteen patients with oligometastatic non-small cell lung cancer and adrenal metastases were treated with the Cyberknife® system. The primary endpoint was local control. RESULTS: The 1-year and 2-year local control rates were 60% and 46...
September 2017: Anticancer Research
https://www.readbyqxmd.com/read/28821268/hypo-fractionated-sbrt-for-localized-prostate-cancer-a-german-bi-center-single-treatment-group-feasibility-trial
#13
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/28812120/risk-adapted-robotic-stereotactic-body-radiation-therapy-for-inoperable-early-stage-non-small-cell-lung-cancer
#14
Susanne Temming, Martin Kocher, Erich Stoelben, Lars Hagmeyer, De-Hua Chang, Konrad Frank, Khosro Hekmat, Juergen Wolf, Wolfgang W Baus, Robert Semrau, Christian Baues, S Marnitz
PURPOSE: To evaluate efficacy and toxicity of stereotactic body radiation therapy (SBRT) with CyberKnife® (Accuray, Sunnyvale, CA, USA) in a selected cohort of primary, medically inoperable early-stage non-small cell lung cancer (NSCLC) patients. METHODS: From 2012 to 2016, 106 patients (median age 74 years, range 50-94 years) with primary NSCLC were treated with SBRT using CyberKnife®. Histologic confirmation was available in 87 patients (82%). For mediastinal staging, 92 patients (87%) underwent 18 F-fluorodeoxyglucose positron-emission tomography (18-FDG-PET) and/or endobronchial ultrasound (EBUS)-guided lymph node biopsy or mediastinoscopy...
February 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28749165/impact-of-robotic-ultrasound-image-guidance-on-plan-quality-in-sbrt-of-the-prostate
#15
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/28740453/clinical-outcomes-of-130-patients-with-primary-and-secondary-lung-tumors-treated-with-cyberknife-robotic-stereotactic-body-radiotherapy
#16
Zsolt Levente Janvary, Nicolas Jansen, Veronique Baart, Magali Devillers, David Dechambre, Eric Lenaerts, Laurence Seidel, Nicole Barthelemy, Patrick Berkovic, Akos Gulyban, Ferenc Lakosi, Zsolt Horvath, Philippe A Coucke
BACKGROUND: Authors report clinical outcomes of patients treated with robotic stereotactic body radiotherapy (SBRT) for primary, recurrent and metastatic lung lesions. PATIENTS AND METHODS: 130 patients with 160 lesions were treated with Cyberknife SBRT, including T1-3 primary lung cancers (54%), recurrent tumors (22%) and pulmonary metastases (24%). The mean biologically equivalent dose (BED10Gy) was 151 Gy (72-180 Gy). Median prescribed dose for peripheral and central lesions was 3×20 Gy and 3×15 Gy, respectively...
June 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28691256/clinical-usefulness-of-mlcs-in-robotic-radiosurgery-systems-for-prostate-sbrt
#17
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/28657157/cyberknife-with-integrated-ct-on-rails-system-description-and-first-clinical-application-for-pancreas-sbrt
#18
Chrysi Papalazarou, Gijsbert J Klop, Maaike T W Milder, Johannes P A Marijnissen, Vikas Gupta, Ben J M Heijmen, Joost J M E Nuyttens, Mischa S Hoogeman
PURPOSE: This article reports on the integration of a sliding-gantry CT-on-rails with a robotic linear accelerator. METHODS: The system consists of a SOMATOM Definition AS CT scanner (Siemens Healthcare, Forchheim, Germany) and a CyberKnife M6 FIM (Accuray, Inc., Sunnyvale, CA, USA). Additional movement programs were implemented in the robotic treatment table (RoboCouch, Accuray Inc.) to move between CT and treatment position. Acceptance testing was performed on the CT scanner according to AAPM83 guidelines, as well as safety tests for collision avoidance and electromagnetic (EM) compatibility...
June 28, 2017: Medical Physics
https://www.readbyqxmd.com/read/28599663/salvage-robotic-sbrt-for-local-prostate-cancer-recurrence-after-radiotherapy-preliminary-results-of-the-oscar-lambret-center
#19
Thomas Leroy, Thomas Lacornerie, Emilie Bogart, Philippe Nickers, Eric Lartigau, David Pasquier
BACKGROUND: Currently, there is no standard option for local salvage treatment for local prostate cancer recurrence after radiotherapy. Our objective was to investigate the feasibility and efficiency of Robotic Stereotactic Body Radiation Therapy (SBRT) in this clinical setting. METHODS/MATERIALS: We retrospectively reviewed patients who were treated at our institution with SBRT for local prostate cancer recurrence after External Beam Radiation Therapy (EBRT) or brachytherapy...
June 9, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28579341/percutaneous-ultrasound-guided-fiducial-marker-placement-for-liver-cancer-robotic-stereotactic-radio-surgery-treatment-a-comparative-analysis-of-three-types-of-markers-and-needles
#20
Maria Marsico, Tommaso Gabbani, Sarah Lunardi, Andrea Galli, Maria Rosa Biagini, Vito Annese
BACKGROUND AND STUDY AIMS: Percutaneous placement of fiducial markers is required to perform stereotactic body radiation therapy (SBRT) for liver neoplastic lesions. This prospective trial was designed to evaluate the feasibility and safety of percutaneous ultrasound-guided placement of three different types of markers in patients with liver cancer referred for SBRT. PATIENTS AND METHODS: Fifty patients underwent percutaneous ultrasound-guided implantation of a fiducial marker in the liver...
June 1, 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
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