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Stereotactic ablative

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https://www.readbyqxmd.com/read/27922336/abscopal-regression-following-sabr-for-non-small-cell-lung-cancer-a-case-report
#1
Yang Cong, Ge Shen, Shikai Wu, Ruimin Hao
Out-of-field tumor response, which is also called abscopal effect, bystander effect, or non-target effect, can be regarded as localized irradiation induced systemic antitumorigenic effects, indicating shrinkage of a tumor distant from the irradiated site. Although abscopal effect has been documented in several tumor types, it is a very rare phenomenon which is clinically reported in non-small-cell-lung carcinoma (NSCLC). Herein, we represent a rare case of patient with NSCLC with two lesions in the upper lobe of left lung who, after receiving stereotactic ablative radiation therapy (SABR) to one of the tumors, had an apparent spontaneous regression of the other mass in the lung, suggestive of a radiation-induced abscopal effect...
December 6, 2016: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/27909629/stereotactic-body-radiotherapy-for-hepatocellular-carcinoma-resulting-in-a-durable-relapse-free-survival-a-case-report
#2
Samual Francis, Ned Williams, Christopher J Anker, Akram Shaaban, Robin Kim, Dennis Shrieve, Jonathan Tward
The standard of care for localized hepatocellular carcinoma (HCC) is surgical resection. For patients who decline or who are unfit for surgery, stereotactic body radiotherapy (SBRT) is emerging as a viable treatment approach. We present a case of a 77-year-old female in whom an early stage HCC was incidentally discovered. Given her religious edicts as a devout Jehovah's Witness and her subsequent desire to avoid a blood transfusion, she declined surgical resection or transplant due to the risk of hemorrhage...
October 24, 2016: Curēus
https://www.readbyqxmd.com/read/27907063/evaluation-of-focal-liver-reaction-after-proton-beam-therapy-for-hepatocellular-carcinoma-examined-using-gd-eob-dtpa-enhanced-hepatic-magnetic-resonance-imaging
#3
Shigeyuki Takamatsu, Kazutaka Yamamoto, Yoshikazu Maeda, Mariko Kawamura, Satoshi Shibata, Yoshitaka Sato, Kazuki Terashima, Yasuhiro Shimizu, Yuji Tameshige, Makoto Sasaki, Satoko Asahi, Tamaki Kondou, Satoshi Kobayashi, Osamu Matsui, Toshifumi Gabata
BACKGROUND: Proton beam therapy (PBT) achieves good local control for hepatocellular carcinoma (HCC), and toxicity tends to be lower than for photon radiotherapy. Focal liver parenchymal damage in radiotherapy is described as the focal liver reaction (FLR); the threshold doses (TDs) for FLR in the background liver have been analyzed in stereotactic ablative body radiotherapy and brachytherapy. To develop a safer approach for PBT, both TD and liver volume changes are considered clinically important in predicting the extent of damage before treatment, and subsequently in reducing background liver damage...
2016: PloS One
https://www.readbyqxmd.com/read/27885858/a-systematic-review-of-outcomes-following-stereotactic-ablative-radiotherapy-in-the-treatment-of-early-stage-primary-lung-cancer
#4
Patrick Murray, Kevin Franks, Gerard G Hanna
Stereotactic ablative body radiotherapy (SABR) describes a radiotherapy technique where high doses of radiation are precisely delivered to an extra-cranial target within the body, using either a single fraction of radiotherapy or using multiple small number of fractions. SABR has now become the standard of care treatment for patients with early stage NSCLC for whom surgery is not appropriate. This systematic review considers the evidence supporting the use of SABR in early stage NSCLC, reported toxicity rates, the use of SABR in centrally located NSCLC, the use of SABR as salvage therapy following surgery or radiotherapy and future potential drug combinations with SABR...
November 25, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27870704/clinical-outcomes-for-stereotactic-ablative-radiotherapy-in-oligometastatic-and-oligoprogressive-gynecological-malignancies
#5
Shane Mesko, Kiri Sandler, Joshua Cohen, Gottfried Konecny, Michael Steinberg, Mitchell Kamrava
OBJECTIVES: We report single-institution clinical outcomes of women treated with stereotactic ablative radiotherapy (SABR) for oligometastatic or progressive gynecological malignancies. MATERIALS AND METHODS: From 2009 to 2015, 47 lesions from 28 patients were treated with SABR and retrospectively analyzed. All patients had oligometastatic (93%) or oligoprogressive (7%) disease. Primary cancer diagnoses were 15 ovarian, 8 endometrial, 2 cervical, 2 vaginal, and 1 uterine carcinosarcoma...
November 17, 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27861324/laser-ablation-of-recurrent-malignant-gliomas-current-status-and-future-perspective
#6
Analiz Rodriguez, Stephen B Tatter
: Recurrent malignant glioma continues to be a clinical challenge, and repeat surgery is an option in only select patients. Stereotactic laser ablation, a new minimally invasive technique, can be used as an alternative to surgery. We review the current literature on laser ablation for recurrent malignant gliomas as well as discuss practical and theoretical advantages and disadvantages of this emerging technique in comparison with repeat surgery or radiation. We also discuss the potential for laser ablation to augment adjuvant therapies, namely, chemotherapy, radiation, and immunotherapy...
December 2016: Neurosurgery
https://www.readbyqxmd.com/read/27861323/stereotactic-laser-interstitial-thermal-therapy-for-recurrent-high-grade-gliomas
#7
Ian Lee, Steven Kalkanis, Constantinos G Hadjipanayis
BACKGROUND: The value of maximal safe cytoreductive surgery in recurrent high-grade gliomas (HGGs) is gaining wider acceptance. However, patients may harbor recurrent tumors that may be difficult to access with open surgery. Laser interstitial thermal therapy (LITT) is emerging as a technique for treating a variety of brain pathologies, including primary and metastatic tumors, radiation necrosis, and epilepsy. OBJECTIVE: To review the role of LITT in the treatment of recurrent HGGs, for which current treatments have limited efficacy, and to discuss the possible role of LITT in the disruption of the blood-brain barrier to increase delivery of chemotherapy locoregionally...
December 2016: Neurosurgery
https://www.readbyqxmd.com/read/27861321/laser-interstitial-thermal-therapy-technology-physics-of-magnetic-resonance-imaging-thermometry-and-technical-considerations-for-proper-catheter-placement-during-magnetic-resonance-imaging-guided-laser-interstitial-thermal-therapy
#8
Nitesh V Patel, Matthew Mian, R Jason Stafford, Brian V Nahed, Jon T Willie, Robert E Gross, Shabbar F Danish
: Laser-induced thermal therapy has become a powerful tool in the neurosurgical armamentarium. The physics of laser therapy are complex, but a sound understanding of this topic is clinically relevant, as many centers have incorporated it into their treatment algorithm, and educated patients are demanding consideration of its use for their disease. Laser ablation has been used for a wide array of intracranial lesions. Laser catheter placement is guided by stereotactic planning; however, as the procedure has popularized, the number of ways in which the catheter can be inserted has also increased...
December 2016: Neurosurgery
https://www.readbyqxmd.com/read/27809459/survey-of-the-patterns-of-using-stereotactic-ablative-radiotherapy-for-early-stage-non-small-cell-lung-cancer-in-korea
#9
Sanghyuk Song, Ji Hyun Chang, Hak Jae Kim, Yeon Sil Kim, Jin Hee Kim, Yong Chan Ahn, Jae-Sung Kim, Si Yeol Song, Sung Ho Moon, Moon June Cho, Seon Min Youn
Purpose: Stereotactic ablative radiotherapy (SABR) is an effective emerging technique for early-stage non-small cell lung cancer (NSCLC). We investigated the current practice of SABR for early-stage NSCLC in Korea. Materials and Methods: We conducted a nationwide survey of SABR for NSCLC by sending e-mails to all board-certified members of the Korean Society for Radiation Oncology. The survey included 23 questions focusing on the technical aspects of SABR and 18 questions seeking the participants' opinions on specific clinical scenarios in the use of SABR for early-stage NSCLC...
October 31, 2016: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/27806580/robotic-intrafractional-us-guidance-for-liver-sabr-system-design-beam-avoidance-and-clinical-imaging
#10
Jeffrey Schlosser, Ren Hui Gong, Ralf Bruder, Achim Schweikard, Sungjune Jang, John Henrie, Aya Kamaya, Albert Koong, Daniel T Chang, Dimitre Hristov
PURPOSE: To present a system for robotic 4D ultrasound (US) imaging concurrent with radiotherapy beam delivery and estimate the proportion of liver stereotactic ablative body radiotherapy (SABR) cases in which robotic US image guidance can be deployed without interfering with clinically used VMAT beam configurations. METHODS: The image guidance hardware comprises a 4D US machine, an optical tracking system for measuring US probe pose, and a custom-designed robot for acquiring hands-free US volumes...
November 2016: Medical Physics
https://www.readbyqxmd.com/read/27806449/advances-in-radiotherapy-technology-for-non-small-cell-lung-cancer-what-every-general-practitioner-should-know
#11
Michael Huo, Peter Gorayski, Mark B Pinkham, Margot Lehman
BACKGROUND: Non-small cell lung cancer (NSCLC) is a leading cause of cancer-related death in Australia. Radiotherapy plays an important role in the curative and palliative settings. OBJECTIVE: This article reviews recent technological advances that have expanded the radiotherapy treatment options available, and presents standard and emerging approaches to NSCLC. DISCUSSION: General practitioners play an integral role in the care and education of patients during diagnosis, treatment and
follow-up of NSCLC...
November 2016: Australian Family Physician
https://www.readbyqxmd.com/read/27796820/whole-body-diffusion-weighted-magnetic-resonance-imaging-wb-dw-mri-vs-choline-positron-emission-tomography-computed-tomography-choline-pet-ct-for-selecting-treatments-in-recurrent-prostate-cancer
#12
A J Conde-Moreno, G Herrando-Parreño, R Muelas-Soria, J Ferrer-Rebolleda, R Broseta-Torres, M P Cozar-Santiago, F García-Piñón, C Ferrer-Albiach
OBJECTIVE: To determine the effectiveness of whole-body diffusion-weighted magnetic resonance imaging (WB-DW-MRI) in detecting metastases by comparing the results with those from choline-positron emission tomography-computed tomography (choline-PET/CT) in patients with biochemical relapse after primary treatment, and no metastases in bone scintigraphy, CT and/or pelvic MRI, or metastatic/oligometastatic prostate cancer (PCa). Patients with this disease profile who could benefit from treatment with stereotactic body radiation therapy (SBRT) were selected and their responses to these techniques were rated...
October 31, 2016: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/27791828/spine-stereotactic-radiosurgery-for-the-treatment-of-multiple-myeloma
#13
Jacob A Miller, Ehsan H Balagamwala, Samuel T Chao, Todd Emch, John H Suh, Toufik Djemil, Lilyana Angelov
OBJECTIVE The objective of this study was to define symptomatic and radiographic outcomes following spine stereotactic radiosurgery (SRS) for the treatment of multiple myeloma. METHODS All patients with pathological diagnoses of myeloma undergoing spine SRS at a single institution were included. Patients with less than 1 month of follow-up were excluded. The primary outcome measure was the cumulative incidence of pain relief after spine SRS, while secondary outcomes included the cumulative incidences of radiographic failure and vertebral fracture...
October 28, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27788948/analysis-of-lung-tumor-motion-in-a-large-sample-patterns-and-factors-influencing-precise-delineation-of-internal-target-volume
#14
Lukas Knybel, Jakub Cvek, Lukas Molenda, Natalie Stieberova, David Feltl
PURPOSE/OBJECTIVE: To evaluate lung tumor motion during respiration and to describe factors affecting the range and variability of motion in patients treated with stereotactic ablative radiation therapy. METHODS AND MATERIALS: Log file analysis from online respiratory tumor tracking was performed in 145 patients. Geometric tumor location in the lungs, tumor volume and origin (primary or metastatic), sex, and tumor motion amplitudes in the superior-inferior (SI), latero-lateral (LL), and anterior-posterior (AP) directions were recorded...
November 15, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27781486/quality-of-tri-co-60-mr-igrt-treatment-plans-in-comparison-with-vmat-treatment-plans-for-spine-sabr
#15
Chang Heon Choi, So-Yeon Park, Jung-In Kim, Jin Ho Kim, Kyubo Kim, Joel Carlson, Jong Min Park
OBJECTIVES: To investigate the plan quality of tri-Co-60 intensity-modulated radiation therapy (IMRT) plans for spine stereotactic ablative radiotherapy (SABR). METHODS: A total of 20 patients with spine metastasis were retrospectively selected. For each patient, a tri-Co-60 IMRT plan and a volumetric modulated arc therapy (VMAT) plan were generated. The spinal cords were defined based on magnetic resonance images for the tri-Co-60 IMRT, while isotropic 1 mm margins were added to the spinal cords for the VMAT plans...
October 26, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27780694/stereotactic-ablative-radiotherapy-versus-low-dose-rate-brachytherapy-or-external-beam-radiotherapy-propensity-score-matched-analyses-of-canadian-data
#16
A Loblaw, T Pickles, J Crook, A-G Martin, E Vigneault, L Souhami, F Cury, J Morris, C Catton, H Lukka, P Cheung, P Sethukavalan, A Warner, Y Yang, G Rodrigues
AIMS: To compare biochemical failure-free survival (BFFS) and overall survival for prostate cancer treated with stereotactic ablative radiotherapy (SABR), low dose rate (LDR) brachytherapy or external beam radiotherapy (EBRT) using a large Canadian multi-institutional database. MATERIALS AND METHODS: Patients with low risk localised prostate cancer treated with SABR, LDR or EBRT and no androgen deprivation therapy were selected. Propensity score matching was used to create two sets of matched cohorts with LDR and EBRT serving as control groups...
October 22, 2016: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/27768919/stereotactic-ablative-radiotherapy-for-early-stage-non-small-cell-lung-cancer-a-critical-literature-review-of-predictive-factors-of-relapse
#17
Gokoulakrichenane Loganadane, Florent Martinetti, Olaf Mercier, Samar Krhili, François-Georges Riet, Rodrigue Mbagui, Hanh To, Cécile Le Péchoux, Antonin Levy
Stereotactic ablative radiation therapy (SABR) has become the standard treatment for peripheral medically non-operable patients with early stage non-small cell lung cancer (NSCLC). Previous attempts of trials to compare SABR and surgery have failed and new randomized studies (SABRtooth, STABLEMATES, and VALOR) are ongoing. While predictive factors of relapse have been extensively studied in patients receiving surgery, there is scarce data on such putative factors in SABR patients. The purpose of this review is to analyze such predictive factors through a critical review of the literature...
October 13, 2016: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/27762601/stereotactic-ct-guided-percutaneous-microwave-ablation-of-liver-tumors-with-the-use-of-high-frequency-jet-ventilation-an-accuracy-and-procedural-safety-study
#18
Jennie Engstrand, Grzegorz Toporek, Piotr Harbut, Eduard Jonas, Henrik Nilsson, Jacob Freedman
OBJECTIVE: The purpose of the present study is to evaluate the accuracy and safety of antenna placement performed with the use of a CT-guided stereotactic navigation system for percutaneous ablation of liver tumors and to assess the safety of high-frequency jet ventilation for target motion control. MATERIALS AND METHODS: Twenty consecutive patients with malignant liver lesions for which surgical resection was contraindicated or that were not readily visible on ultrasound or not accessible by ultrasound guidance were included in the study...
October 20, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27758723/-new-developments-in-the-treatment-of-pancreatic-cancer
#19
H A Marsman, M G Besselink
- The incidence of pancreatic cancer is increasing due to the ageing population among other things, while 5-year survival has improved in the past two decades from 3 to 7%.- In case of biliary obstruction due to pancreatic cancer, biliary drainage before surgery or ablative therapy using a covered metal stent instead of plastic reduces the rate of complications.- In patients with metastasized pancreatic cancer a combination of folinic acid, fluorouracil, irinotecan and oxaliplatin (FOLFIRINOX) results in improved survival...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27743801/stereotactic-ablative-radiotherapy-for-adrenal-gland-metastases-factors-influencing-outcomes-patterns-of-failure-and-dosimetric-thresholds-for-toxicity
#20
William W Chance, Quynh-Nhu Nguyen, Reza Mehran, James W Welsh, Daniel R Gomez, Peter Balter, Ritsuko Komaki, Zhongxing Liao, Joe Y Chang
PURPOSE: We report our single-institution experience with stereotactic ablative radiotherapy (SABR) for adrenal metastasis and identify factors influencing outcomes, patterns of failure, and dosimetric thresholds for toxicity. METHODS AND MATERIALS: We identified patients with adrenal metastases treated with SABR from 2009 to 2015. Toxicity was evaluated with Common Terminology Criteria for Adverse Events v4.0. Local failures were categorized as in-field, marginal, or out-of-field...
September 13, 2016: Practical Radiation Oncology
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