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https://www.readbyqxmd.com/read/28340495/residents-learning-curve-of-lumbar-transforaminal-epidural-steroid-injections
#1
Holger Joswig, Sarah Roberta Haile, Gerhard Hildebrandt, Martin Nikolaus Stienen
Background and Study Aims There is a paucity of literature on beginners' training and on its connection with patient safety for transforaminal epidural steroid injections (TFESIs). This study retrospectively assessed the learning curves and associated complications of neurosurgery residents never previously exposed to TFESI and compared them with experienced board-certified faculty neurosurgeons (BCFNs). Material and Methods Procedure time in minutes, dose-area product (DAP) in cGy*cm(2), periprocedural observations, and complications in 354 TFESIs for radicular pain secondary to lumbar disk herniation or lumbar spinal stenosis were extracted from operative notes and the electronic infiltration logbook in the per-injection format...
March 24, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28332989/multicenter-study-of-carbon-ion-radiation-therapy-for-mucosal-melanoma-of-the-head-and-neck-subanalysis-of-the-japan-carbon-ion-radiation-oncology-study-group-j-cros-study-1402-hn
#2
Masashi Koto, Yusuke Demizu, Jun-Ichi Saitoh, Hiroaki Suefuji, Hiroshi Tsuji, Tomoaki Okimoto, Tatsuya Ohno, Yoshiyuki Shioyama, Ryo Takagi, Kenji Nemoto, Takashi Nakano, Tadashi Kamada
PURPOSE: To evaluate the efficacy and safety of carbon-ion radiation therapy (RT) for mucosal melanoma of the head and neck (MMHN) in the Japan Carbon-Ion Radiation Oncology Study Group study. METHODS AND MATERIALS: Patients with MMHN with N0-1M0 status who were treated with carbon-ion RT at 4 institutions in Japan between November 2003 and December 2014 were analyzed retrospectively. Two hundred sixty patients (male, 111; female, 149; median age, 68 years) with histologically proven MMHN were enrolled...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28330795/at-arms-length-radiation-safety-during-radial-pci
#3
EDITORIAL
Neal S Kleiman, Norman J Kleiman
No abstract text is available yet for this article.
March 15, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28327089/uniform-fdg-pet-guided-gradient-dose-prescription-to-reduce-late-radiation-toxicity-upgrade-rt-study-protocol-for-a-randomized-clinical-trial-with-dose-reduction-to-the-elective-neck-in-head-and-neck-squamous-cell-carcinoma
#4
Sven van den Bosch, Tim Dijkema, Martina C Kunze-Busch, Chris H J Terhaard, Cornelis P J Raaijmakers, Patricia A H Doornaert, Frank J P Hoebers, Marije R Vergeer, Bas Kreike, Oda B Wijers, Wim J G Oyen, Johannes H A M Kaanders
BACKGROUND: In definitive radiation therapy for head and neck cancer, clinically uninvolved cervical lymph nodes are irradiated with a so-called 'elective dose' in order to achieve control of clinically occult metastases. As a consequence of high-resolution diagnostic imaging, occult tumor volume has significantly decreased in the last decades. Since the elective dose is dependent on occult tumor volume, the currently used elective dose may be higher than necessary. Because bilateral irradiation of the neck contributes to dysphagia, xerostomia and hypothyroidism in a dose dependent way, dose de-escalation to these regions can open a window of opportunity to reduce toxicity and improve quality of life after treatment...
March 21, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28325513/effectiveness-of-biplane-angiography-compared-to-monoplane-angiography-for-vascular-neuro-interventions-a-systematic-review-of-the-literature
#5
C A Bellemare, T G Poder
AIM: To compare biplane technology to monoplane technology for vascular neuro-intervention. MATERIALS AND METHODS: A systematic review of the literature in MEDLINE (via PubMed), Scopus, and ScienceDirect was conducted without date or language restrictions. The Downs and Black quality-assessment checklist was used. The findings of this systematic review were combined with local and Canadian data. RESULTS: The nine articles selected for analysis had a very low level of evidence...
March 18, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28325496/international-organizations-risk-assessment-and-research-why-what-and-how
#6
REVIEW
R Julian Preston
The process of setting radiation protection standards requires the interaction of a number of international and national organizations that in turn require the input of scientific and regulatory experts. Bill Morgan served in an expert capacity for several of these organizations particularly for the application of radiation biology data to risk assessment. He brought great enthusiasm and dedication to these committee efforts. In fact, he really enjoyed this type of service. The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), for example, provides comprehensive reviews of the input data for radiation risk assessments...
March 8, 2017: Mutation Research
https://www.readbyqxmd.com/read/28325266/stage-i-small-cell-lung-cancer-a-new-potential-option-for-stereotactic-ablative-radiation-therapy-a-review-of-literature
#7
REVIEW
Filippo Alongi, Stefano Arcangeli, Berardino De Bari, Niccolò Giaj-Levra, Alba Fiorentino, Rosario Mazzola, Marco Trovò
Small cell lung cancer (SCLC) is relative rare histology in lung cancer patients. The standard treatment, in patients with an intra-thoracic disease, is represented by the use of concurrent chemo-radiotherapy; while patients with early SCLC stage, surgical resection could be recommended. Stereotactic body radiotherapy (SBRT) is a recently introduced technique allowing the delivery of very high radiation doses to limited target volumes and it is considered the standard approach in the treatment of not operable stage I Non Small-Cell Lung Cancer (NSCLC)...
April 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28325238/radiation-oncology-quality-and-safety-considerations-in-low-resource-settings-a-medical-physics-perspective
#8
REVIEW
Jacob Van Dyk, Ahmed Meghzifene
The past few years have seen a significant growth of interest in the global radiation therapy (RT) crisis. Various organizations have quantified the need and are providing aid in support of addressing the shortfalls existing in many low-to-middle income countries. With the tremendous demand for new facilities, equipment, and personnel, it is very important to recognize the quality and safety challenges and to address them directly. An examination of publications on quality and safety in RT indicates a consistency in a number of the recommendations; however, these authoritative reports were generally based on input from high-resourced contexts...
April 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28325236/improving-quality-and-access-to-radiation-therapy-an-iaea-perspective
#9
REVIEW
May Abdel-Wahab, Eduardo Zubizarreta, Alfredo Polo, Ahmed Meghzifene
The International Atomic Energy Agency (IAEA) has been involved in radiation therapy since soon after its creation in 1957. In response to the demands of Member States, the IAEA׳s activities relating to radiation therapy have focused on supporting low- and middle-income countries to set up radiation therapy facilities, expand the scope of treatments, or gradually transition to new technologies. In addition, the IAEA has been very active in providing internationally harmonized guidelines on clinical, dosimetry, medical physics, and safety aspects of radiation therapy...
April 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28324866/long-term-bioavailability-of-redox-nanoparticles-effectively-reduces-organ-dysfunctions-and-death-in-whole-body-irradiated-mice
#10
Chitho P Feliciano, Koji Tsuboi, Kenshi Suzuki, Hiroyuki Kimura, Yukio Nagasaki
Radioprotective agents have been developed to protect patients against the damaging and lethal effects of ionizing radiation. However, in addition to the intrinsic ability to target reactive oxygen species (ROS), the ability to retain a significant level of bioavailability is desirable in radioprotective agents because that would increase and prolong their radioprotective efficacy and improve its safety. Here, we report the development of a novel nanoparticle-based radioprotective agent with improved bioavailability, which suppressed the adverse effects typically associated with low-molecular-weight (LMW) antioxidants...
March 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28323716/clinical-experience-using-a-remote-control-injection-system-in-vertebroplasty-feasibility-safety-and-cement-leakage-of-osteoporotic-and-malignant-compression-fractures
#11
Peng Jin, Xunwei Liu, Min Li, Gang Sun
STUDY DESIGN: A retrospective study. SUMMARY OF BACKGROUND DATA: Cement leakage is a frequent occurrence in vertebroplasty and is also the main source of complications. Continuous radiographic evaluation is mandatory to detect cement leakage during injecting cement into the vertebral body, while the operator is subjected to x-ray radiation exposure. OBJECTIVE: The aim of this study was to evaluate the feasibility and safety of vertebroplasty performed on patients and operators for the treatment of osteoporotic and malignant vertebral compression fractures using a remote control injection system...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323434/development-of-potential-methods-for-testing-congestion-control-algorithm-implemented-in-vehicle-to-vehicle-communications
#12
Chung-Jen Hsu, Joshua Fikentscher, Robert Kreeb
Objective A channel congestion problem might occur when the traffic density increases since the number of basic safety messages carried on the communication channel also increases in vehicle-to-vehicle communications. A remedy algorithm proposed in SAE J2945/1 is designed to address the channel congestion issue by decreasing transmission frequency and radiated power. This study is to develop potential test procedures for evaluating or validating the congestion control algorithm. Methods Simulations of a reference unit transmitting at a higher frequency are implemented to emulate a number of Onboard Equipment (OBE) transmitting at the normal interval of 100 milliseconds (10 Hz)...
March 21, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28319448/rationale-and-design-of-a-phase-1-clinical-trial-to-evaluate-hsv-g207-alone-or-with-a-single-radiation-dose-in-children-with-progressive-or-recurrent-malignant-supratentorial-brain-tumors
#13
Alicia M Waters, James M Johnston, Alyssa T Reddy, John Fiveash, Avi Madan-Swain, Kara Kachurak, Asim K Bag, G Yancey Gillespie, James M Markert, Gregory K Friedman
Primary central nervous system tumors are the most common solid neoplasm of childhood and the leading cause of cancer-related death in pediatric patients. Survival rates for children with malignant supratentorial brain tumors are poor despite aggressive treatment with combinations of surgery, radiation, and chemotherapy, and survivors often suffer from damaging lifelong sequelae from current therapies. Novel innovative treatments are greatly needed. One promising new approach is the use of a genetically engineered, conditionally replicating herpes simplex virus (HSV) that has shown tumor-specific tropism and potential efficacy in the treatment of malignant brain tumors...
March 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28318653/applying-and-adapting-the-swedish-regulatory-system-for-decommissioning-to-nuclear-power-reactors-the-regulator-s-perspective
#14
Martin Amft, Mathias Leisvik, Simon Carroll
Half of the original 13 Swedish nuclear power reactors will be shut down by 2020. The decommissioning of these reactors is a challenge for all parties involved, including the licensees, the waste management system, the financing system, and the Swedish Radiation Safety Authority (SSM). This paper presents an overview of the Swedish regulations for decommissioning of nuclear facilities. It describes some of the experiences that SSM has gained from the application of these regulations. The focus of the present paper is on administrative aspects of decommissioning, such as SSM's guidelines, the definition of fundamental concepts in the regulatory framework, and a proposed revision of the licensing process according to the Environmental Act...
March 16, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28318054/efficacy-and-safety-of-targeted-high-intensity-medium-band-304-312-nm-ultraviolet-b-light-in-pediatric-vitiligo
#15
Da-Ke Dong, Zhan-Yan Pan, Juan Zhang, Xue-Fen Lu, Cheng Jin, Shi-Qin Tao, Li-Jia Yang
BACKGROUND/OBJECTIVES: Phototherapy is a commonly used treatment for vitiligo that has demonstrated safety and efficacy. High-intensity targeted ultraviolet B (UVB) light (304-312 nm) delivered using a phototherapy device is a useful therapeutic option because it can induce repigmentation in a short time without global exposure to radiation, but information regarding this device in children is limited. METHODS: We performed a retrospective analysis of 95 patches of vitiligo in 27 children treated using a targeted phototherapy device...
March 20, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28314163/radon-measurements-and-dose-estimate-of-workers-in-a-manganese-ore-mine
#16
Amin Shahrokhi, Tamás Vigh, Csaba Németh, Anita Csordás, Tibor Kovács
In the new European Basic Safety Standard (EU-BSS), a new reference level for indoor radon concentration in workplaces has recommended that the annual average activity concentration of indoor radon shall not be higher than 300Bqm(-3). This paper describes the radon concentration level in an underground workplace (manganese ore mine) over long time intervals (4 years). Several common radon monitors devices - including NRPB and Raduet (as a passive method based on CR-39), AlphaGUARD PQ 2000Pro, SARAD EQF3220, TESLA and Pylon WLX (as active methods) - were used for continuous radon measurements...
March 10, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28303210/stereotactic-spine-radiosurgery-review-of-safety-and-efficacy-with-respect-to-dose-and-fractionation
#17
REVIEW
Michael Huo, Arjun Sahgal, David Pryor, Kristin Redmond, Simon Lo, Matthew Foote
BACKGROUND: Stereotactic body radiotherapy (SBRT) is an emerging treatment option for spinal metastases with demonstrated efficacy in the upfront, postoperative, and re-treatment settings, as well as for tumor histologies considered radioresistant. Uncertainty exists regarding the optimal dose and fractionation schedule, with single and multifraction regimens commonly utilized. METHODS: A literature search of the PubMed and Medline databases was conducted to identify papers specific to spine SBRT and the effect of varying dose/fractionation regimens on outcomes...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28301278/comparison-of-onsite-versus-online-chart-reviews-as-part-of-the-american-college-of-radiation-oncology-accreditation-program
#18
Jaroslaw T Hepel, Dwight E Heron, Arno J Mundt, Catheryn Yashar, Steven Feigenberg, Gordon Koltis, William F Regine, Dheerendra Prasad, Shilpen Patel, Navesh Sharma, Mary Hebert, Norman Wallis, Michael Kuettel
PURPOSE: Accreditation based on peer review of professional standards of care is essential in ensuring quality and safety in administration of radiation therapy. Traditionally, medical chart reviews have been performed by a physical onsite visit. The American College of Radiation Oncology Accreditation Program has remodeled its process whereby electronic charts are reviewed remotely. METHODS: Twenty-eight radiation oncology practices undergoing accreditation had three charts per practice undergo both onsite and online review...
March 16, 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28297309/production-review-and-impact-of-technical-quality-control-guidelines-in-a-national-context
#19
Michelle K Nielsen, Kyle E Malkoske, Erika Brown, Kevin Diamond, Normand Frenière, John Grant, Natalie Pomerleau-Dalcourt, Jason Schella, L John Schreiner, Laurent Tantôt, J Eduardo Villarreal-Barajas, Jean-Pierre Bissonnette
A close partnership between the Canadian Partnership for Quality Radiotherapy (CPQR) and the Canadian Organization of Medical Physicist's (COMP) Quality Assurance and Radiation Safety Advisory Committee (QARSAC) has resulted in the development of a suite of Technical Quality Control (TQC) guidelines for radiation treatment equipment; they outline specific performance objectives and criteria that equipment should meet in order to assure an acceptable level of radiation treatment quality. The adopted framework for the development and maintenance of the TQCs ensures the guidelines incorporate input from the medical physics community during development, measures the workload required to perform the QC tests outlined in each TQC, and remain relevant (i...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28295385/technical-note-the-design-and-function-of-a-horizontal-patient-rotation-system-for-the-purposes-of-fixed-beam-cancer-radiotherapy
#20
Ilana Feain, Lloyd Coleman, Hue Wallis, Richard Sokolov, Ricky O'Brien, Paul Keall
PURPOSE: Cancer radiation therapy treatment is performed by delivering a 3D dose distribution to the tumour via the relative rotation between beam and patient. Whilst most modern machines rotate the radiation beam around a still patient, the treatment can also be delivered by rotating the patient relative to a fixed beam. Fixed-beam, patient rotation radiotherapy machines show promise for reducing the size, surface area footprint, and shielding requirements compared with rotating gantry machines...
March 15, 2017: Medical Physics
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