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Stereotactic ablative

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https://www.readbyqxmd.com/read/28719087/mri-guided-stereotactic-neurosurgical-procedures-in-a-diagnostic-mri-suite-background-and-safe-practice-recommendations
#1
Paul S Larson, Jon T Willie, Sudhakar Vadivelu, Hooman Azmi-Ghadimi, Amy Nichols, Loretta Litz Fauerbach, Helen Boehm Johnson, Denise Graham
The development of navigation technology facilitating MRI-guided stereotactic neurosurgery has enabled neurosurgeons to perform a variety of procedures ranging from deep brain stimulation to laser ablation entirely within an intraoperative or diagnostic MRI suite while having real-time visualization of brain anatomy. Prior to this technology, some of these procedures required multisite workflow patterns that presented significant risk to the patient during transport. For those facilities with access to this technology, safe practice guidelines exist only for procedures performed within an intraoperative MRI...
July 2017: Journal of Healthcare Risk Management: the Journal of the American Society for Healthcare Risk Management
https://www.readbyqxmd.com/read/28712275/predictive-factors-of-symptomatic-radiation-pneumonitis-in-primary-and-metastatic-lung-tumors-treated-with-stereotactic-ablative-body-radiotherapy
#2
Kangpyo Kim, Jeongshim Lee, Yeona Cho, Seung Yeun Chung, Jason Joon Bock Lee, Chang Geol Lee, Jaeho Cho
PURPOSE: Although stereotactic ablative body radiotherapy (SABR) is widely used therapeutic technique, predictive factors of radiation pneumonitis (RP) after SABR remain undefined. We aimed to investigate the predictive factors affecting RP in patients with primary or metastatic lung tumors who received SABR. MATERIALS AND METHODS: From 2012 to 2015, we reviewed 59 patients with 72 primary or metastatic lung tumors treated with SABR, and performed analyses of clinical and dosimetric variables related to symptomatic RP...
June 2017: Radiation Oncology Journal
https://www.readbyqxmd.com/read/28708043/reirradiation-spine-stereotactic-body-radiation-therapy-for-spinal-metastases-systematic-review
#3
Sten Myrehaug, Arjun Sahgal, Motohiro Hayashi, Marc Levivier, Lijun Ma, Roberto Martinez, Ian Paddick, Jean Régis, Samuel Ryu, Ben Slotman, Antonio De Salles
OBJECTIVE Spinal metastases that recur after conventional palliative radiotherapy have historically been difficult to manage due to concerns of spinal cord toxicity in the retreatment setting. Spine stereotactic body radiation therapy (SBRT), also known as stereotactic radiosurgery, is emerging as an effective and safe means of delivering ablative doses to these recurrent tumors. The authors performed a systematic review of the literature to determine the clinical efficacy and safety of spine SBRT specific to previously irradiated spinal metastases...
July 14, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28705474/rf-ablation-in-periventricular-heterotopia-related-epilepsy
#4
Massimo Cossu, Laura Mirandola, Laura Tassi
Drug-resistant focal epilepsy is a common occurrence in patients with gray matter nodular heterotopia (NH), and surgical treatment is often considered in these cases. NH-related epileptogenicity is sustained by complex networks, which may involve the nodules and extralesional cortex in various combinations. Therefore, invasive EEG is usually required to identify the structures involved in seizure generation. It has been reported that surgery may be effective in cases with unilateral lesions, whereas bilateral cases are not optimal candidates for surgical success...
July 3, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28701219/excellent-local-control-and-tolerance-profile-after-stereotactic-body-radiotherapy-of-advanced-hepatocellular-carcinoma
#5
Eleni Gkika, Michael Schultheiss, Dominik Bettinger, Lars Maruschke, Hannes Philipp Neeff, Michaela Schulenburg, Sonja Adebahr, Simon Kirste, Ursula Nestle, Robert Thimme, Anca-Ligia Grosu, Thomas Baptist Brunner
BACKGROUND: To evaluate the efficacy and toxicity of stereotactic body radiotherapy (SBRT) in the treatment of advanced hepatocellular carcinoma (HCC). MATERIAL AND METHODS: Patients with large HCCs (median diameter 7 cm, IQR 5-10 cm) with a Child-Turcotte-Pugh (CTP) score A (60%) or B (40%) and Barcelona-Clinic Liver Cancer (BCLC) classification stage B or C were treated with 3 to 12 fractions to allow personalized treatment according to the size of the lesions and the proximity of the lesions to the organs at risk aiming to give high biologically equivalent doses assuming an α/β ratio of 10 Gy for HCC...
July 12, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28699085/laser-interstitial-thermal-therapy-for-epilepsy
#6
REVIEW
Eric Prince, Shahin Hakimian, Andrew L Ko, Jeffrey G Ojemann, Michelle S Kim, John W Miller
MRI-guided laser interstitial thermal therapy (MgLiTT) uses a narrow diameter cannula to stereotactically target and heat deeper cerebral structures. This technique produces a precise lesion in the brain with great reliability because the localized tissue temperature change is monitored in real time. Because MgLiTT minimizes injury to surrounding brain, it appears to have a lower risk of affecting normal neurological function, and because it is done through a burr hole, there is less operative risk, less discomfort, and shorter hospitalizations...
September 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28697271/encouraging-long-term-outcomes-reported-in-patients-with-stage-i-non-small-cell-lung-cancer-treated-with-stereotactic-ablative-radiotherapy
#7
Mary Kay Barton
No abstract text is available yet for this article.
July 11, 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28697122/the-emerging-role-of-endoscopists-in-treating-unresectable-pancreatic-cancer
#8
Adrianne Tsen, Matthew Van Norman, Sreedevi Atluri, Laura Rosenkranz
Pancreatic adenocarcinoma is the eighth leading cause of cancer deaths worldwide in men and ninth leading cause in women. Surgical resection offers the only chance of potential cure; however, only 9.4% of patients present at the localized, resectable stage, whereas the rest present at the locally advanced or metastatic, unresectable stages. Because of the guarded outcomes following systemic chemoradiation and the associated systemic toxicities, locoregional therapies have recently gained popularity. Various endoscopic techniques (endoscopic ultrasound [EUS]-guided ablative therapies, fine-needle instillation of antitumor agents, stereotactic body radiation therapy with EUS-guided fiducial marker placement, and EUS-guided brachytherapy) have been explored over the past several years...
August 2017: Pancreas
https://www.readbyqxmd.com/read/28693191/effect-of-primary-tumor-location-and-tumor-size-on-the-response-to-radiotherapy-for-liver-metastases-from-colorectal-cancer
#9
Hiroshi Doi, Kenji Uemoto, Osamu Suzuki, Koichi Yamada, Norihisa Masai, Daisaku Tatsumi, Hiroya Shiomi, Ryoong-Jin Oh
Metastatic liver tumors (MLTs) from colorectal cancer (CRC) are often treated with stereotactic body radiation therapy (SBRT). The present study aimed to examine the predictive factors for response of MLTs to SBRT. A total of 39 MLTs from 24 patients with CRC were retrospectively analyzed. Radiotherapy for MLT was typically performed with a prescribed dose equivalent to a biologically effective dose (BED)10 of 100 Gy. The median follow-up period was 16 months (range, 5-64 months). The median prescribed dose and total BED10 were 56 Gy (range, 45-72 Gy) and 97...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28685607/state-of-the-ablation-nation-a-review-of-ablative-therapies-for-cure-in-the-treatment-of-hepatocellular-carcinoma
#10
Umer Salati, Aisling Barry, Frank Y Chou, Roy Ma, David M Liu
Primary liver cancer, mainly hepatocellular carcinoma, is one of the most common malignancies worldwide. Surgical management, either resection or transplantation, is considered definitive treatment, however, less than 20% of patients are ultimately candidates. Thermal ablation modalities such as radiofrequency ablation and microwave ablation have evolved such that these modalities have been applied with curative intent. Moreover, thermal ablation has demonstrated efficacy in treating early-stage tumors and can be offered as first-line treatment in patients with uncomplicated disease...
July 7, 2017: Future Oncology
https://www.readbyqxmd.com/read/28684242/-hypofractionated-stereotactic-body-radiation-therapy-for-adrenal-metastases
#11
G Dupic, J Biau, A Bellière-Calandry, M Lapeyre
Adrenal glands are a common site for metastatic spread since they represent the fourth metastatic site of solid tumors. Interest in local ablative treatments of oligometastases is growing since literature suggests better progression-free survival, quality of life and potentially overall survival in selected patients. Surgery remains the first treatment of adrenal oligometastases because results are good, with a long enough follow-up. However, stereotactic radiotherapy appears to be comparable to surgery and could be proposed to elderly, unfit, inoperable patients, or even to patients whose systemic treatment should not be suspended for too long...
July 3, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28677574/radiotherapy-in-patients-with-hiv-current-issues-and-review-of-the-literature
#12
REVIEW
Filippo Alongi, Niccolò Giaj-Levra, Savino Sciascia, Alessandra Fozza, Sergio Fersino, Alba Fiorentino, Rosario Mazzola, Francesco Ricchetti, Michela Buglione, Dora Buonfrate, Dario Roccatello, Umberto Ricardi, Zeno Bisoffi
Although the introduction of highly active antiretroviral therapy has radically improved the life expectancy of patients with HIV, HIV positivity is still considered a major barrier to oncological treatment for patients with cancer because of their worse prognosis and increased susceptibility to toxic effects compared with patients who are immunocompetent. The use of radiotherapy with or without chemotherapy, immunotherapy, or molecular targeted therapy is the standard of care for several cancers. These new drugs and substantial improvements in radiotherapy techniques, including intensity-modulated radiotherapy, image-guided radiotherapy, and stereotactic ablative radiotherapy, are optimising the feasibility of such anticancer treatments and are providing new opportunities for patients with cancer and HIV...
July 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28675492/development-of-patient-controlled-respiratory-gating-system-based-on-visual-guidance-for-magnetic-resonance-image-guided-radiation-therapy
#13
Jung-In Kim, Hanyoung Lee, Hong-Gyun Wu, Eui Kyu Chie, Hyun-Cheol Kang, Jong Min Park
PURPOSE: The aim of this study is to develop a visual guidance patient-controlled (VG-PC) respiratory gating system for respiratory-gated magnetic-resonance image-guided radiation therapy (MR-IGRT) and to evaluate the performance of the developed system. METHODS: The near-real-time cine planar MR image of a patient acquired during treatment was transmitted to a beam projector in the treatment room through an optical fiber cable. The beam projector projected the cine MR images inside the bore of the ViewRay system in order to be visible to a patient during treatment...
July 4, 2017: Medical Physics
https://www.readbyqxmd.com/read/28669706/sinoatrial-node-toxicity-after-stereotactic-ablative-radiation-therapy-to-lung-tumors
#14
Yushen Qian, Han Zhu, Erqi L Pollom, Ben Y Durkee, Aadel A Chaudhuri, Michael F Gensheimer, Maximilian Diehn, David B Shultz, Billy W Loo
PURPOSE: Stereotactic ablative radiation therapy (SABR) is an established treatment for selected lung tumors. Sinoatrial node (SAN) toxicity after thoracic SABR has not been reported in the literature. We sought to understand the risk of SAN toxicity owing to incidental dose to the SAN from SABR. METHODS AND MATERIALS: We conducted a retrospective review of patients with early-stage lung cancer or limited pulmonary metastases who underwent thoracic SABR to a right-sided central lung tumor (within 2 cm of the mainstem bronchus or other mediastinal structures) between January 2008 and December 2014, analyzed a subset whose treatment imparted dose to the SAN exceeding 10% of the prescription dose, and examined patient and treatment dosimetric characteristics...
April 13, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28665249/improved-operative-efficiency-using-a-real-time-mri-guided-stereotactic-platform-for-laser-amygdalohippocampotomy
#15
Allen L Ho, Eric S Sussman, Arjun V Pendharkar, Scheherazade Le, Alessandra Mantovani, Alaine C Keebaugh, David R Drover, Gerald A Grant, Max Wintermark, Casey H Halpern
OBJECTIVE MR-guided laser interstitial thermal therapy (MRgLITT) is a minimally invasive method for thermal destruction of benign or malignant tissue that has been used for selective amygdalohippocampal ablation for the treatment of temporal lobe epilepsy. The authors report their initial experience adopting a real-time MRI-guided stereotactic platform that allows for completion of the entire procedure in the MRI suite. METHODS Between October 2014 and May 2016, 17 patients with mesial temporal sclerosis were selected by a multidisciplinary epilepsy board to undergo a selective amygdalohippocampal ablation for temporal lobe epilepsy using MRgLITT...
June 30, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28662680/systematic-review-of-patient-reported-quality-of-life-following-stereotactic-ablative-radiotherapy-for-primary-and-metastatic-liver-cancer
#16
REVIEW
Adam Mutsaers, Jeffrey Greenspoon, Cindy Walker-Dilks, Anand Swaminath
BACKGROUND: Stereotactic ablative radiotherapy (SABR) is a safe and effective modality in patients with liver cancer who are ineligible for other local therapies. However SABR is not current standard of practice and requires further validation. Patient reported quality of life (QOL) is key to this validation, yet no systematic reviews to date have been performed to analyse QOL following liver SABR. QOL is a critical part of therapy evaluation, particularly in disease states with short life expectancy...
June 29, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28662647/a-phase-ii-randomized-trial-of-observation-versus-stereotactic-ablative-radiation-for-oligometastatic-prostate-cancer-oriole
#17
Noura Radwan, Ryan Phillips, Ashley Ross, Steven P Rowe, Michael A Gorin, Emmanuel S Antonarakis, Curtiland Deville, Stephen Greco, Samuel Denmeade, Channing Paller, Daniel Y Song, Maximilian Diehn, Hao Wang, Michael Carducci, Kenneth J Pienta, Martin G Pomper, Theodore L DeWeese, Adam Dicker, Mario Eisenberger, Phuoc T Tran
BACKGROUND: We describe a randomized, non-blinded Phase II interventional study to assess the safety and efficacy of stereotactic ablative radiotherapy (SABR) for hormone-sensitive oligometastatic prostate adenocarcinoma, and to describe the biology of the oligometastatic state using immunologic, cellular, molecular, and functional imaging correlates. 54 men with oligometastatic prostate adenocarcinoma will be accrued. The primary clinical endpoint will be progression at 6 months from randomization with the hypothesis that SABR to all metastases will forestall progression by disrupting the metastatic process...
June 29, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28655454/mlc-tracking-for-lung-sabr-reduces-planning-target-volumes-and-dose-to-organs-at-risk
#18
Vincent Caillet, Paul J Keall, Emma Colvill, Nicholas Hardcastle, Ricky O'Brien, Kathryn Szymura, Jeremy T Booth
PURPOSE: Assess the dosimetric impact of multi-leaf collimator (MLC) tracking and mid-ventilation (midV) planning compared with the internal target volume (ITV)-based planning approach for lung Stereotactic Ablative Body Radiotherapy (SABR). METHOD: Ten lung SABR patients originally treated with an ITV-based plan were re-planned according to MLC tracking and midV planning schemes. All plans were delivered on a linac to a motion phantom in a simulated treatment with real lung motions...
June 24, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28652770/stereotactic-body-radiotherapy-or-stereotactic-ablative-radiotherapy-versus-surgery-for-patients-with-t1-3n0m0-non-small-cell-lung-cancer-a-systematic-review-and-meta-analysis
#19
Ming Li, Xiaodong Yang, Yuhan Chen, Xinyu Yang, Xiyu Dai, Fenghao Sun, Li Zhang, Cheng Zhan, Mingxiang Feng, Qun Wang
BACKGROUND: Stereotactic body radiotherapy (SBRT) or stereotactic ablative radiotherapy (SABR) has been reported to be a comparable alternative therapy to surgery for patients with T1-3N0M0 non-small cell lung cancer (NSCLC). However, it has not been clarified whether SBRT/SABR is as effective as surgery. We conducted this study to compare the efficacy of SBRT/SABR and surgery in the treatment of T1-3N0M0 NSCLC. MATERIALS AND METHODS: An electronic and a manual search of the literature was conducted in PubMed, Embase, and the Wiley Online Library in all published data before January 1, 2017...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28649372/the-use-of-high-frequency-ventilation-during-general-anaesthesia-an-update
#20
REVIEW
Karolina Galmén, Piotr Harbut, Jacob Freedman, Jan G Jakobsson
Various forms of high-frequency ventilation (HFV) have been described. HFV is broadly defined as artificial ventilation of the lungs with sub-deadspace tidal volumes delivered using supra-physiological frequencies. HFV has been used in anaesthesia and intensive care for special procedures and conditions since the 1960s. Clinical interest in the use and the technical evolution of HFV has developed over time. There is a renewed interest in HFV for avoiding parenchymal movement during stereotactic tumour ablation...
2017: F1000Research
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