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Radiology, Nuclear Medicine

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https://www.readbyqxmd.com/read/28205026/common-strategic-research-agenda-for-radiation-protection-in-medicine
#1
(no author information available yet)
: Reflecting the change in funding strategies for European research projects, and the goal to jointly improve medical radiation protection through sustainable research efforts, five medical societies involved in the application of ionising radiation (European Association of Nuclear Medicine, EANM; European Federation of Organizations for Medical Physics. EFOMP; European Federation of Radiographer Societies, EFRS; European Society of Radiology, ESR; European Society for Radiotherapy and Oncology, ESTRO) have identified research areas of common interest and developed this first edition of the Common Strategic Research Agenda (SRA) for medical radiation protection...
February 15, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28182580/internal-dosimetry-with-the-monte-carlo-code-gate-validation-using-the-icrp-icru-female-reference-computational-model
#2
Daphnée Villoing, Sara Marcatili, Marie-Paule Garcia, Manuel Bardiès
The purpose of this work was to validate GATE-based clinical scale absorbed dose calculations in nuclear medicine dosimetry. GATE (version 6.2) and MCNPX (version 2.7.a) were used to derive dosimetric parameters (absorbed fractions, specific absorbed fractions and S-values) for the reference female computational model proposed by the International Commission on Radiological Protection in ICRP report 110. Monoenergetic photons and electrons (from 50 keV to 2 MeV) and four isotopes currently used in nuclear medicine (fluorine-18, lutetium-177, iodine-131 and yttrium-90) were investigated...
March 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28133756/converting-computed-tomography-images-into-photon-interaction-coefficients-by-using-stoichiometric-calibration-and-parametric-fit-models
#3
Cheng-Ting Shih, Jay Wu
PURPOSE: X ray and γ-ray are widely applied in radiology, radiotherapy, and nuclear medicine. Linear attenuation coefficients and linear energy absorption coefficients are essential for dose calculation and image correction. In this study, a method that entails combining the stoichiometric calibration and parametric physical models was developed to convert computed tomography (CT) images into the linear attenuation coefficients and linear energy absorption coefficients. METHODS: A calibration scan was performed using standard tissue-equivalent materials to obtain the characteristics of the x-ray energy spectrum...
December 10, 2016: Medical Physics
https://www.readbyqxmd.com/read/28123250/e-licensing-of-radiation-applications-elora-in-armed-forces-hospitals-nuts-and-bolts
#4
REVIEW
Rohit Aggarwal, R A George, Aftab Alam, B K Soni
As per current statutory requirement, licence for operation of all medical radiation facilities (diagnostic radiology/radiotherapy/nuclear medicine) in India has to be obtained using the e-Licensing of Radiation Applications (acronym as 'eLORA') platform which is a web-based application on Atomic Energy Regulatory Board (AERB) website. This article is envisaged as a procedural guide for all medical administrators and radiologists in service institutions processing eLORA. Specific focus has been placed on practical methods to deal with inherent procedural hurdles unique to armed forces institutions, based on first-hand experience gained in successful eLORA processing at a tertiary care hospital...
January 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28102707/patient-dosimetry-audit-for-establishing-local-diagnostic-reference-levels-for-nuclear-medicine-ct
#5
Matthew Gardner, Ngonidzashe M Katsidzira, Erin Ross, Elizabeth A Larkin
OBJECTIVES: To establish a system for patient dosimetry audit and setting of Local Diagnostic Reference Levels (LDRLs) for Nuclear Medicine (NM) CT. METHODS: Computed Radiological Information System (CRIS) data were matched with NM paper records which provided the body region and dose mode for NMCT carried out at a large UK hospital. It was necessary to divide data in terms of the NM examination type, body region and dose mode. The mean and standard deviation Dose Length Products (DLPs) for common NMCT examinations were then calculated and compared to the proposed National DRLs (NDRLs)...
January 19, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28099977/a-step-by-step-clinical-approach-for-the-management-of-neuroendocrine-tumours
#6
A Yordanova, H Ahmadzadehfar, M Gonzalez-Carmona, C Strassburg, K Mayer, G Feldmann, I Schmidt-Wolf, P Lingohr, S Fischer, G Kristiansen, M Essler
Neuroendocrine tumours (NET) are rare neoplasms, but the incidence is permanently increasing. Most of the NETs are slow proliferating and clinically silent, and for that reason, they are often diagnosed at a stage with advanced disease. The complexity and diversity of the NET-biology require the treatment of patients in specialised centres to guarantee a qualified, multidisciplinary treatment planning. At our institution, we developed an interdisciplinary model for the assessment and treatment of NET. The aim was to adapt the guidelines to the clinical practice, exchange of current knowledge, and a tailored approach to the individual patient...
February 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28097498/clinical-applications-of-a-ct-window-blending-algorithm-radio-relative-attenuation-dependent-image-overlay
#7
Jacob C Mandell, Bharti Khurana, Les R Folio, Hyewon Hyun, Stacy E Smith, Ruth M Dunne, Katherine P Andriole
A methodology is described using Adobe Photoshop and Adobe Extendscript to process DICOM images with a Relative Attenuation-Dependent Image Overlay (RADIO) algorithm to visualize the full dynamic range of CT in one view, without requiring a change in window and level settings. The potential clinical uses for such an algorithm are described in a pictorial overview, including applications in emergency radiology, oncologic imaging, and nuclear medicine and molecular imaging.
January 17, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28047744/we-a-201-01-memorial-introduction
#8
C Marshall
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047091/we-a-201-02-modern-statistical-modeling
#9
A Niemierko
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046695/mo-de-bra-03-the-ottawa-medical-physics-institute-ompi-a-practical-model-for-academic-program-collaboration-in-a-multi-centre-city
#10
M McEwen, D Rogers, P Johns/Sup
PURPOSE: To build a world-class medical physics educational program that capitalizes on expertise distributed over several clinical, government, and academic centres. Few if any of these centres would have the critical mass to solely resource a program. METHODS: In order to enable an academic program, stakeholders from five institutions made a proposal to Carleton University for a) a research network with defined membership requirements and a process for accepting new members, and b) a graduate specialization (MSc and PhD) in medical physics...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046561/we-a-201-00-anne-and-donald-herbert-distinguished-lectureship-on-modern-statistical-modeling
#11
Joseph Deasy
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28040836/measurement-of-131-i-activity-in-thyroid-of-nuclear-medical-staff-and-internal-dose-assessment-in-a-polish-nuclear-medical-hospital
#12
K Brudecki, A Kowalska, P Zagrodzki, A Szczodry, T Mroz, P Janowski, J W Mietelski
This paper presents results of (131)I thyroid activity measurements in 30 members of the nuclear medicine personnel of the Department of Endocrinology and Nuclear Medicine Holy Cross Cancer Centre in Kielce, Poland. A whole-body spectrometer equipped with two semiconductor gamma radiation detectors served as the basic research instrument. In ten out of 30 examined staff members, the determined (131)I activity was found to be above the detection limit (DL = 5 Bq of (131)I in the thyroid). The measured activities ranged from (5 ± 2) Bq to (217 ± 56) Bq...
December 31, 2016: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28027543/ionizing-radiation-brain-effects-and-related-neuropsychiatric-manifestations
#13
D Marazziti, A Piccinni, F Mucci, S Baroni, K Loganovsky, T Loganovskaja
Recently, an increasing interest has been directed towards the investigation of brain effects of ionizing radiation (IR), as it is now evident that, depending on the doses, the damages character and severity, as well as clinical man ifestations are different. They are generally considered to be the result of a blending of atherosclerotic, cardiovas cular, cerebrovascular and neurodegenerative processes. Further, an ongoing debate has been opened on the pos sible brain abnormalities following medical radiation from X ray in interventional radiology and nuclear medicine procedures that would involve both patients and medical workers...
December 2016: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/28027167/meeting-the-needs-of-the-nation-for-radiation-protection-summary-of-the-52nd-annual-meeting-of-the-national-council-on-radiation-protection-and-measurements
#14
Richard E Toohey
The 52nd Annual Meeting of the National Council on Radiation Protection and Measurements (NCRP) was held in Bethesda, MD, 11-12 April 2016, on the topic of "Meeting National Needs for Radiation Protection." This meeting was an outgrowth of the NCRP initiative "Where are the Radiation Professionals?" (WARP), which addresses looming shortages in professional personnel trained in the radiological disciplines, including but not limited to health physics, radiological engineering, radiobiology, radiochemistry, radioecology, radiation emergency response; and the medical disciplines of diagnostic and interventional radiology, radiation oncology, nuclear medicine, and medical physics...
February 2017: Health Physics
https://www.readbyqxmd.com/read/28027166/ncrp-vision-for-the-future-and-program-area-committee-activities
#15
John D Boice
The National Council on Radiation Protection and Measurements (NCRP) believes that the most critical need for the nation in radiation protection is to train, engage, and retain radiation professionals for the future. Not only is the pipeline shrinking, but for some areas there is no longer a pipe! When the call comes to respond, there may be no one to answer the phone! The NCRP "Where are the Radiation Professionals?" initiative, Council Committee (CC) 2, and this year's annual meeting are to focus our efforts to find solutions and not just reiterate the problems...
February 2017: Health Physics
https://www.readbyqxmd.com/read/28027161/fortieth-lauriston-s-taylor-lecture-radiation-protection-and-regulatory-science
#16
John W Poston
It took about 30 y after Wilhelm Konrad Roentgen's discovery of x rays and Henri Becquerel's discovery of natural radioactivity for scientists in the civilized world to formulate recommendations on exposure to ionizing radiation. We know of these efforts today because the organizations that resulted from the concerns raised in 1928 at the Second International Congress of Radiology still play a role in radiation protection. The organizations are known today as the International Commission on Radiological Protection and, in the United States, the National Council on Radiation Protection and Measurements (NCRP)...
February 2017: Health Physics
https://www.readbyqxmd.com/read/28027013/overuse-of-diagnostic-imaging-for-work-related-injuries
#17
Brianna Rebecca Clendenin, Helen Acree Conlon, Candace Burns
Overuse of health care in the United States is a growing concern. This article addresses the use of diagnostic imaging for work-related injuries. Diagnostic imaging drives substantial cost for increases in workers' compensation. Despite guidelines published by the American College of Radiology and the American College of Occupational Medicine and the Official Disability Guidelines, practitioners are prematurely ordering imaging sooner than recommended. Workers are exposed to unnecessary radiation and are incurring increasing costs without evidence of better outcomes...
February 2017: Workplace Health & Safety
https://www.readbyqxmd.com/read/27958197/awareness-of-ionizing-radiation-exposure-among-junior-doctors-and-senior-medical-students-in-radiological-investigations
#18
Elfatih Abuelhia
The awareness and knowledge of ionizing radiation exposure in radiological investigations among junior doctors and medical students were studied. The participants were year four to year six senior medical students enrolled at University of Dammam and interns in King Fahad University Hospital. The survey consisted of 22 questions designed online using the software 'QuestionPro' licensed to the University of Dammam. 100 hard copies were also distributed manually and collected. A total of 221 (88.5%) questionnaires were completed...
December 13, 2016: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/27933280/bone-imaging-in-prostate-cancer-the-evolving-roles-of-nuclear-medicine-and-radiology
#19
REVIEW
Gary J R Cook, Gurdip Azad, Anwar R Padhani
The bone scan continues to be recommended for both the staging and therapy response assessment of skeletal metastases from prostate cancer. However, it is widely recognised that bone scans have limited sensitivity for disease detection and is both insensitive and non-specific for determining treatment response, at an early enough time point to be clinically useful. We, therefore, review the evolving roles of nuclear medicine and radiology for this application. We have reviewed the published literature reporting recent developments in imaging bone metastases in prostate cancer, and provide a balanced synopsis of the state of the art...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27928786/-implementation-of-multidisciplinary-team-in-the-diagnosis-and-treatment-of-gastroenteropancreatic-neuroendocrine-neoplasm
#20
Panpan Zhang, Lin Shen
Multidisciplinary team(MDT) has been considered as the best practice in the treatment planning and care for patients with cancer around the world. With the increased range and number of specialists involved, multidisciplinary coordination and communication have been enhanced, and the efficiency and quality of diagnosis and treatment of cancer have been improved. Neuroendocrine neoplasm (NEN) is a heterogeneous group of tumors originating from neuroendocrine cells located throughout the body, most of which is gastroenteropancreatic neuroendocrine neoplasm (GEP-NEN)...
November 25, 2016: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
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