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https://www.readbyqxmd.com/read/28731288/radiation-therapists-perspectives-on-participating-in-research
#1
Georgia K B Halkett, Melissa Berg, Martin A Ebert, David Cutt, Michael Davis, Desley Hegney, Michael House, Michelle Judson, Rachel Kearvell, Michele Krawiec, Leanne Lester, Sharon Maresse, Peter McLoone, Jan McKay
INTRODUCTION: The objectives of this research were to: (1) determine the extent of Australian radiation therapists (RTs) research participation; (2) evaluate the impact of research involvement on career perceptions (3) explore which research topics require investigation and (4) identify benefits and barriers to research participation. METHODS: This study used mixed methods to collect qualitative and quantitative data using an online survey from a larger workforce study of RTs and radiation oncology medical physicists...
July 21, 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28709862/1st-european-congress-of-medical-physics-september-1-4-2016-medical-physics-innovation-and-vision-within-europe-and-beyond
#2
EDITORIAL
Virginia Tsapaki, George C Kagadis, Marco Brambilla, Mario Ciocca, Catharine H Clark, Harry Delis, Giovanni Mettivier
Medical Physics is the scientific healthcare profession concerned with the application of the concepts and methods of physics in medicine. The European Federation of Organisations for Medical Physics (EFOMP) acts as the umbrella organization for European Medical Physics societies. Due to the rapid advancements in related scientific fields, medical physicists must have continuous education through workshops, training courses, conferences, and congresses during their professional life. The latest developments related to this increasingly significant medical speciality were presented during the 1st European Congress of Medical Physics 2016, held in Athens, September 1-4, 2016, organized by EFOMP, hosted by the Hellenic Association of Medical Physicists (HAMP), and summarized in the current volume...
July 11, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28708234/physicists-views-on-hadrontherapy-a-survey-of-members-of-the-italian-association-of-medical-physics-aifm
#3
Tommaso Giandini, Chiara Tenconi, Mauro Carrara, Mario Ciocca, Stefania Russo, Costanza M V Panaino, Federica Cattani, Delia Ciardo, Sara Morlino, Barbara Avuzzi, Nice Bedini, Sergio Villa, Giulia Marvaso, Paola Romanelli, Azusa Hasegawa, Barbara Vischioni, Francesca Valvo, Barbara A Jereczek-Fossa, Roberto Orecchia, Riccardo Valdagni, Emanuele Pignoli
BACKGROUND: This study was based on a survey to investigate perceptions of hadrontherapy of the members of the Italian Association of Medical Physics (AIFM). The survey was digitally submitted to the 991 members between the end of January and the beginning of April 2016. METHODS: A 19-item questionnaire was designed focusing on advantages and disadvantages of hadrontherapy, current status and possible future improvements, and need and opportunities for future investments in Italy and abroad...
July 8, 2017: Tumori
https://www.readbyqxmd.com/read/28701662/overview-of-jsps-core-to-core-program-forming-research-and-educational-hubs-of-medical-physics
#4
Masahiko Koizumi, Masaaki Takashina
To foster medical physicists, we introduce the achievement we made since 2011 under the national research project of the Japan Society for the Promotion of Science (JSPS) Core-to-Core program; 'Forming Research and Educational Hubs of Medical Physics.' On this basis and under the JSPS program, we promoted research and educational exchange with Indiana University (IU) in USA, University of Groningen (The UG) in the Netherland and other cooperating institutions such as University of Minnesota (UM).A total of 23 students and researchers were sent...
2017: Japanese Journal of Medical Physics
https://www.readbyqxmd.com/read/28688159/aapm-tg-158-measurement-and-calculation-of-doses-outside-the-treated-volume-from-external-beam-radiation-therapy
#5
Stephen F Kry, Bryan Bednarz, Rebecca M Howell, Larry Dauer, David Followill, Eric Klein, Harald Paganetti, Brian Wang, Cheng-Shie Wuu, X George Xu
The introduction of advanced techniques and technology in radiotherapy has greatly improved our ability to deliver highly conformal tumor doses while minimizing the dose to adjacent organs at risk. Despite these tremendous improvements there remains a general concern about doses to normal tissues that are not the target of the radiation treatment; any "non-target" radiation should be minimized as it offers no therapeutic benefit. As patients live longer after treatment, there is increased opportunity for late effects including second cancers and cardiac toxicity to manifest...
July 8, 2017: Medical Physics
https://www.readbyqxmd.com/read/28687286/compliance-to-diagnostic-reference-levels-for-radiation-exposure-in-common-radiological-procedures-in-dutch-hospitals-a-nation-wide-survey-carried-out-by-medical-imaging-students
#6
H Bijwaard, G de Vries, J Scheurleer, T Roding, H Erenstein, W Ravensbergen, S Haarmans-Jonkman, F van Welie
INTRODUCTION: In the Netherlands, hospitals have difficulty in implementing the formal procedure of comparing radiation dose values to Diagnostic Reference Levels (DRLs). METHODS: To support the hospitals, train radiography students, and carry out a nationwide dose survey, diagnostic radiography students performed 125 DRL comparisons for nine different procedures in 29 radiology departments. Students were instructed at three Dutch Universities of Applied Sciences with a radiography programme and supervised by medical physicists from the participating hospitals...
August 2017: Radiography
https://www.readbyqxmd.com/read/28677594/optimization-of-imaging-protocols-in-interventional-cardiology-impact-on-patient-doses
#7
José Manuel Ordiales, Eliseo Vano, Juan Manuel Nogales, José Ramos, José Ramón López-Mínguez, Ginés Martínez, Pablo Cerrato, Fernando Alvarez
The purpose of this work is to evaluate the impact of the imaging protocol as part of the optimization of patient doses in interventional cardiology. This paper reports the results of an initial study to refine the existing fluoroscopy and cine settings, evaluates a new imaging protocol by measuring the image quality and phantom entrance air kerma values, and tests the clinical implementation of the new protocol in terms of the reduction in patient doses and the impact on clinical images. The initial study developed a new fluoroscopy mode using 7...
July 5, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28662850/patient-dose-monitoring-systems-a-new-way-of-managing-patient-dose-and-quality-in-the-radiology-department
#8
N Fitousi
PURPOSE: Due to the upcoming European Directive (2013/59/EURATOM) and the increased focus on patient safety in international guidelines and regulations, Patient Dose Monitoring Systems, also called Dose Management Systems (DMS), are introduced in medical imaging departments. This article focusses on the requirements for a DMS, its benefits and the necessary implementation steps. METHOD: The implementation of a DMS can be perceived as a lengthy, yet worthy, procedure: users have to select the appropriate system for their applications, prepare data collection, validate, perform configuration, and start using the results in quality improvement projects...
June 26, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28644913/supplement-2-for-the-2004-update-of-the-aapm-task-group-no-43-report-joint-recommendations-by-the-aapm-and-gec-estro
#9
Mark J Rivard, Facundo Ballester, Wayne M Butler, Larry A DeWerd, Geoffrey S Ibbott, Ali S Meigooni, Christopher S Melhus, Michael G Mitch, Ravinder Nath, Panagiotis Papagiannis
Since publication of the 2004 update to the American Association of Physicists in Medicine (AAPM) Task Group No. 43 Report (TG-43U1) and its 2007 supplement (TG-43U1S1), several new low-energy photon-emitting brachytherapy sources have become available. Many of these sources have satisfied the AAPM prerequisites for routine clinical purposes and are posted on the Brachytherapy Seed Registry managed jointly by the AAPM and the Imaging and Radiation Oncology Core Houston Quality Assurance Center (IROC Houston)...
June 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28643024/automatic-seed-picking-for-brachytherapy-postimplant-validation-with-3d-ct-images
#10
Guobin Zhang, Qiyuan Sun, Shan Jiang, Zhiyong Yang, Xiaodong Ma, Haisong Jiang
PURPOSE: Postimplant validation is an indispensable part in the brachytherapy technique. It provides the necessary feedback to ensure the quality of operation. The ability to pick implanted seed relates directly to the accuracy of validation. To address it, an automatic approach is proposed for picking implanted brachytherapy seeds in 3D CT images. METHODS: In order to pick seed configuration (location and orientation) efficiently, the approach starts with the segmentation of seed from CT images using a thresholding filter which based on gray-level histogram...
June 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28630886/review-of-the-current-status-of-radiation-protection-in-diagnostic-radiology-in-africa
#11
REVIEW
Wilbroad Muhogora, Madan M Rehani
The aim of this paper is to review the available published studies from African countries on patient doses and medical radiation protection and identify strengths, weaknesses, and challenges. Papers on radiation doses to patients published until 2016 pertaining to studies in African countries were reviewed. Radiography, interventional radiology, computed tomography (CT), and mammography modalities were covered. In radiography, the entrance surface air kerma values were below the established diagnostic reference levels (DRLs) provided by the International Atomic Energy Agency, European Commission, and National Council on Radiation Protection and Measurements...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28615985/treatment-of-movement-disorders-with-focused-ultrasound
#12
REVIEW
Paul S Fishman, Victor Frenkel
Although the use of ultrasound as a potential therapeutic modality in the brain has been under study for several decades, relatively few neuroscientists or neurologists are familiar with this technology. Stereotactic brain lesioning had been widely used as a treatment for medically refractory patients with essential tremor (ET), Parkinson disease (PD), and dystonia but has been largely replaced by deep brain stimulation (DBS) surgery, with advantages both in safety and efficacy. However, DBS is associated with complications including intracerebral hemorrhage, infection, and hardware malfunction...
2017: Journal of Central Nervous System Disease
https://www.readbyqxmd.com/read/28576581/in-vivo-dosimetry-for-lung-radiotherapy-including-sbrt
#13
REVIEW
Boyd M C McCurdy, Peter M McCowan
SBRT for lung cancer is being rapidly adopted as a treatment option in modern radiotherapy centres. This treatment is one of the most complex in common clinical use, requiring significant expertise and resources. It delivers a high dose per fraction (typically ∼6-30Gy/fraction) over few fractions. The complexity and high dose delivered in only a few fractions make powerful arguments for the application of in vivo dosimetry methods for these treatments to enhance patient safety. In vivo dosimetry is a group of techniques with a common objective - to estimate the dose delivered to the patient through a direct measurement of the treatment beam(s)...
May 30, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28555878/correlation-between-a-2d-channelized-hotelling-observer-and-human-observers-in-a-low-contrast-detection-task-with-multislice-reading-in-ct
#14
Lifeng Yu, Baiyu Chen, James M Kofler, Christopher P Favazza, Shuai Leng, Matthew A Kupinski, Cynthia H McCollough
PURPOSE: Model observers have been successfully developed and used to assess the quality of static 2D CT images. However, radiologists typically read images by paging through multiple 2D slices (i.e., multislice reading). The purpose of this study was to correlate human and model observer performance in a low-contrast detection task performed using both 2D and multislice reading, and to determine if the 2D model observer still correlate well with human observer performance in multislice reading...
May 27, 2017: Medical Physics
https://www.readbyqxmd.com/read/28548315/aapm-medical-physics-practice-guideline-8-a-linear-accelerator-performance-tests
#15
Koren Smith, Peter Balter, John Duhon, Gerald A White, David L Vassy, Robin A Miller, Christopher F Serago, Lynne A Fairobent
PURPOSE: The purpose of this guideline is to provide a list of critical performance tests in order to assist the Qualified Medical Physicist (QMP) in establishing and maintaining a safe and effective quality assurance (QA) program. The performance tests on a linear accelerator (linac) should be selected to fit the clinical patterns of use of the accelerator and care should be given to perform tests which are relevant to detecting errors related to the specific use of the accelerator. METHODS: A risk assessment was performed on tests from current task group reports on linac QA to highlight those tests that are most effective at maintaining safety and quality for the patient...
May 26, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28500759/a-monte-carlo-model-for-mean-glandular-dose-evaluation-in-spot-compression-mammography
#16
Antonio Sarno, David R Dance, Ruben E van Engen, Kenneth C Young, Paolo Russo, Francesca Di Lillo, Giovanni Mettivier, Kristina Bliznakova, Baowei Fei, Ioannis Sechopoulos
PURPOSE: To characterize the dependence of normalized glandular dose (DgN) on various breast model and image acquisition parameters during spot compression mammography and other partial breast irradiation conditions, and evaluate alternative previously proposed dose-related metrics for this breast imaging modality. METHODS: Using Monte Carlo simulations with both simple homogeneous breast models and patient-specific breasts, three different dose-related metrics for spot compression mammography were compared: the standard DgN, the normalized glandular dose to only the directly irradiated portion of the breast (DgNv), and the DgN obtained by the product of the DgN for full field irradiation and the ratio of the mid-height area of the irradiated breast to the entire breast area (DgNM )...
May 13, 2017: Medical Physics
https://www.readbyqxmd.com/read/28499659/-spinal-stereotactic-body-radiotherapy-french-assessment-in-2016
#17
MULTICENTER STUDY
I Pougnet, E Jaegle, R Garcia, F Tessier, J C Faivre, G Louvel, E Gross, L Gonzague, M Benchalal, A Ducteil, S Supiot, D Autret, J B Clavier, X Mirabel, A Bellière, D Wdowczyk, S Heymann, I Barillot, B de La Lande, V Passerat, M P Sunyach, F Lipinski, D Thibouw, F Guichard, B Chauvet, J Thariat, A Arnaud
PURPOSE: Stereotactic body radiotherapy to vertebral column remains uncommon practice and only relevant in selected group of patients. The main objective of the study was to describe the current state of medical practices of stereotactic body radiotherapy to vertebral column in France in 2016 and to assess the diversity of practices to identify areas for improvement and establish a common database set for this technique. MATERIALS AND METHODS: A questionnaire was written with contribution of a medical physicist, a radiation oncologist, an information technologist and a radiotherapy resident...
June 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28497529/aapm-medical-physics-practice-guideline-6-a-performance-characteristics-of-radiation-dose-index-monitoring-systems
#18
Dustin A Gress, Renee L Dickinson, William D Erwin, David W Jordan, Robert J Kobistek, Donna M Stevens, Mark P Supanich, Jia Wang, Lynne A Fairobent
The American Association of Physicists in Medicine (AAPM) is a nonprofit professional society whose primary purposes are to advance the science, education and professional practice of medical physics. The AAPM has more than 8,000 members and is the principal organization of medical physicists in the United States. The AAPM will periodically define new practice guidelines for medical physics practice to help advance the science of medical physics and to improve the quality of service to patients throughout the United States...
May 12, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28464490/the-geographic-penetration-of-the-jacmp-and-the-benefits-of-aapm-membership-for-clinical-medical-physicists-worldwide
#19
EDITORIAL
Michael D Mills
No abstract text is available yet for this article.
May 2, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28462894/a-survey-of-residents-experience-with-patient-safety-and-quality-improvement-concepts-in-radiation-oncology
#20
Matthew B Spraker, Matthew Nyflot, Kristi Hendrickson, Eric Ford, Gabrielle Kane, Jing Zeng
PURPOSE: The safety and quality of radiation therapy have recently garnered increased attention in radiation oncology (RO). Although patient safety guidelines expect physicians and physicists to lead clinical safety and quality improvement (QI) programs, trainees' level of exposure to patient safety concepts during training is unknown. METHODS AND MATERIALS: We surveyed active medical and physics RO residents in North America in February 2016. Survey questions involved demographics and program characteristics, exposure to patient safety topics, and residents' attitude regarding their safety education...
December 1, 2016: Practical Radiation Oncology
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