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ethics AND radiography

Jakub Karch, Benjamin Bartl, Jan Dudak, Jan Zemlicka, Frantisek Krejci
Historical beeswax seals are unique cultural heritage objects. Unfortunately, a number of historical sealing waxes show a porous structure with a strong tendency to stratification and embrittlement, which makes these objects extremely prone to mechanical damage. The understanding of beeswax degradation processes therefore plays an important role in the preservation and consequent treatment of these objects. Conventional methods applied for the investigation of beeswax materials (e.g. gas chromatography) are of a destructive nature or bring only limited information about the sample surface (microscopic techniques)...
September 16, 2016: Micron: the International Research and Review Journal for Microscopy
Yvonne Yi-Na Bender, Gerd Diederichs, Thula Cannon Walter, Moritz Wagner, Thomas Liebig, Marcus Rickert, Kay-Geert Hermann, Bernd Hamm, Marcus Richard Makowski
OBJECTIVE: The aim of this study was to evaluate the diagnostic performance of susceptibility-weighted magnetic resonance imaging (SW-MRI) for the differentiation of osteophytes and disc herniations of the spine compared with that of conventional spine MR sequences and radiography. MATERIALS AND METHODS: This study was approved by the local ethics review board; written consent was obtained from all subjects. Eighty-one patients with suspected radiculopathy of the spine were included prospectively...
August 19, 2016: Investigative Radiology
Theodoros Soldatos, Parham Pezeshk, Fatemeh Ezzati, David R Karp, Joel D Taurog, Avneesh Chhabra
This article highlights the key aspects and current perspectives of the role of cross-sectional imaging in adult crystal and inflammatory arthropathies in adults, briefly discussing CT, and particularly focusing on MRI and US imaging as it supplements the conventional radiography. The role of conventional and advanced MR imaging techniques and imaging findings in this domain is discussed and illustrated with case examples. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards...
September 2016: Skeletal Radiology
Kati Matilainen, Sanna-Mari Ahonen, Päivi Kankkunen, Mari Kangasniemi
BACKGROUND: Considering the ethics of each profession is important as inter-professional collaboration increases. Professional ethics creates a basis for radiographers' work, as it includes values and principles, together with rights and duties that guide and support professionals. However, little is known about radiographers' rights when it comes to professional ethics. THE AIM: The aim of this study was to describe radiographers' perceptions and experiences of their professional rights...
May 10, 2016: Scandinavian Journal of Caring Sciences
Georgios Filippou, Antonella Adinolfi, Marco A Cimmino, Carlo A Scirè, Serafino Carta, Sauro Lorenzini, Pierpaolo Santoro, Luca M Sconfienza, Ilaria Bertoldi, Valentina Picerno, Valentina Di Sabatino, Paolo Ferrata, Mauro Galeazzi, Bruno Frediani
OBJECTIVES: To assess the diagnostic performance of ultrasound (US), x-rays, and microscopic analysis of synovial fluid (SF) for calcium pyrophosphate dihydrate crystal deposition disease (CPPD) using histology as a reference standard. METHODS: We enrolled consecutive patients with osteoarthritis waiting to undergo knee replacement surgery. Each patient underwent US of the knee, focusing on menisci and the hyaline cartilage, the day before surgery. During surgery, SF, menisci and condyles were retrieved and examined microscopically...
March 2016: Clinical and Experimental Rheumatology
Ewa Oksztulska-Kolanek, Beata Znorko, Małgorzata Michałowska, Krystyna Pawlak
Mineral metabolism disturbances are common in chronic kidney disease (CKD) and have been classified as a new clinical entity, also known as CKD-mineral and bone disorders (CKD-MBD). A decrease in the bone strength, whose clinical manifestation is a tendency for fracture, has been recognized as an important component of CKD-MBD. Because of ethical issues, measurements of the bone strength in the human body are usually limited to noninvasive techniques, such as radiography, dual-energy X-ray absorptiometry and the assays of bone turnover biomarkers...
2016: Nephron
K Vanschandevijl, H Nollet, G Vercauteren, R Ducatelle, P Deprez
REASONS FOR PERFORMING STUDY: Transcranial magnetic stimulation (TMS) is an electrophysiological technique used to elicit motor evoked potentials (MMEPs) to evaluate the functional integrity of the descending motor fibres in the spinal cord. Successful application of the technique was reported in horses with spinal cord compression. However, limited data are available on the correlation of TMS with histopathological changes. OBJECTIVES: To determine sensitivity of TMS for assessing the integrity of the spinal cord in horses with compressive lesions of the spinal cord...
September 2015: Equine Veterinary Journal
Maegan V Prummel, Derek Muradali, Rene Shumak, Vicky Majpruz, Patrick Brown, Hedy Jiang, Susan J Done, Martin J Yaffe, Anna M Chiarelli
PURPOSE: To compare measures of diagnostic accuracy between large concurrent cohorts of women screened with digital computed radiography (CR), direct radiography (DR), and screen-film mammography (SFM). MATERIALS AND METHODS: This study was approved by the University of Toronto Research Ethics Board; informed consent was not required. Three concurrent cohorts of women aged 50-74 years who were screened from 2008-2009 in the Ontario Breast Screening Program with SFM (487,334 screening examinations, 403,688 women), DR (254,758 screening examinations, 220,520 women), or CR (74,140 screening examinations, 64,210 women) were followed for 2 years or until breast cancer diagnosis...
February 2016: Radiology
Jaume Miranda-Rius, Lluís Brunet-Llobet, Eduard Lahor-Soler, Ombeni Mrina, Albert Ramírez-Rámiz
BACKGROUND: Breakage of surgical instruments is a rare complication. A mistake in operator technique or sub-standard/aged tools could lead to this type of accident. A tooth elevator is an instrument used in minor oral surgical procedures to luxate the tooth or fractured root from its socket. The authors have not found any previously published cases reporting the breakage of a tooth elevator tip which then remained as a foreign body in a hidden caries cavity. CASE PRESENTATION: A 28-year-old African black male was referred to a hospital in Tanzania for an intraoral radiography...
2015: BMC Research Notes
Jaume Miranda-Rius, Lluís Brunet-Llobet, Eduard Lahor-Soler, Ombeni Mrina, Albert Ramírez-Rámiz
BACKGROUND: Breakage of surgical instruments is a rare complication. A mistake in operator technique or sub-standard/aged tools could lead to this type of accident. A tooth elevator is an instrument used in minor oral surgical procedures to luxate the tooth or fractured root from its socket. The authors have not found any previously published cases reporting the breakage of a tooth elevator tip which then remained as a foreign body in a hidden caries cavity. CASE PRESENTATION: A 28-year-old African black male was referred to a hospital in Tanzania for an intraoral radiography...
December 2015: BMC Research Notes
J Madana, Gregoire B Morand, Luz Barona-Lleo, Martin J Black, Alex M Mlynarek, Michael P Hier
BACKGROUND: Post treatment lung screening for head and neck cancer patients primarily focuses on the distant metastasis and a high rate of second primary can also be expected. The best screening tool and timing for this purpose is controversial. We sought out to assess the current practice and beliefs among Canadian Head and Neck Surgeons. METHODS: After Ethical Board approval, a nationwide survey was conducted through the Canadian Society of Otolaryngology (CSO) among head and neck surgeons regarding their practices for pulmonary screening in HNSCC patients...
2015: Journal of Otolaryngology—Head & Neck Surgery
Stephanie Tan, Simranjit S Ghumman, Martin Ladouceur, Thomas P Moser
OBJECTIVE: To determine the reliability of carpal angles measured on CT and MRI compared to radiography and assess if these measurements are interchangeable. MATERIALS AND METHODS: Our institutional ethic research committee approved this study. For this retrospective study, two independent observers measured the scapholunate (SL), capitolunate (CL), radiolunate (RL), and radioscaphoid (RS) angles on 21 sets of exams, with each set including a radiograph, CT, and MRI of the same wrist...
December 2014: Skeletal Radiology
Marianne Breuninger, Bram van Ginneken, Rick H H M Philipsen, Francis Mhimbira, Jerry J Hella, Fred Lwilla, Jan van den Hombergh, Amanda Ross, Levan Jugheli, Dirk Wagner, Klaus Reither
BACKGROUND: Chest radiography to diagnose and screen for pulmonary tuberculosis has limitations, especially due to inter-reader variability. Automating the interpretation has the potential to overcome this drawback and to deliver objective and reproducible results. The CAD4TB software is a computer-aided detection system that has shown promising preliminary findings. Evaluation studies in different settings are needed to assess diagnostic accuracy and practicability of use. METHODS: CAD4TB was evaluated on chest radiographs of patients with symptoms suggestive of pulmonary tuberculosis enrolled in two cohort studies in Tanzania...
2014: PloS One
Luís A Bastião Silva, Luís S Ribeiro, Milton Santos, Carlos Costa, José Luís Oliveira
Quality assurance for planned radiation exposure situations (e.g. Digital Radiography, Computed Tomography or Radio Fluoroscopic studies) requires the application of examination-specific scans protocols. These are tailored to patient age or size, body region and clinical indication for ensuring that the dose applied to each patient is as low as reasonably achievable for the clinical purpose of the image acquisition (ALARA principle). The European legal framework--2013/59/EURATOM--points that health authorities will be more pervasive on inspecting the dosimetry applied to patients...
2014: Studies in Health Technology and Informatics
Daniel Wittschieber, Christian Ottow, Volker Vieth, Martin Küppers, Ronald Schulz, Juan Hassu, Thomas Bajanowski, Klaus Püschel, Frank Ramsthaler, Heidi Pfeiffer, Sven Schmidt, Andreas Schmeling
As superimposition effects often impede the evaluation of the ossification status of the medial clavicular epiphysis in standard posterior-anterior (PA) radiographs, additional oblique images (right anterior oblique, RAO, and left anterior oblique, LAO) are currently recommended to allow for reliable stage assessments. The present study examines the influence of the radiographic projection type on stage determination. To this end, 836 sternoclavicular joints were prospectively obtained during forensic autopsies of bodies aged between 15 and 30 years...
January 2015: International Journal of Legal Medicine
Maegan V Prummel, Susan J Done, Derek Muradali, Vicky Majpruz, Patrick Brown, Hedy Jiang, Rene S Shumak, Martin J Yaffe, Claire M B Holloway, Anna M Chiarelli
Our previous study found cancer detection rates were equivalent for direct radiography compared to screen-film mammography, while rates for computed radiography were significantly lower. This study compares prognostic features of invasive breast cancers by type of mammography. Approved by the University of Toronto Research Ethics Board, this study identified invasive breast cancers diagnosed among concurrent cohorts of women aged 50-74 screened by direct radiography, computed radiography, or screen-film mammography from January 1, 2008 to December 31, 2009...
September 2014: Breast Cancer Research and Treatment
Gareth Rooke, Fred T S Phillips
BACKGROUND: In paediatric patients with a forearm fracture, treated with manipulation under anaesthesia with fluoroscopic guidance, protocol varies whether a day 1 post-operative radiograph is performed. The primary aim of this study is to evaluate whether this investigation changes the management of a patient. Secondary aims evaluated number of reinterventions and factors associated with loss of position. METHODS: A retrospective study design was used. Cases were identified from the Wellington Regional Hospital radiology database between 1 January 2010 and 30 July 2011...
January 2015: ANZ Journal of Surgery
Jian Dai, Xianmei Zhou, Danjiang Dong, Yin Liu, Qin Gu, Bin Zhu, Chao Wu, Hourong Cai
BACKGROUND: Rapidly progressive pneumonia infection with H7N9 virus is a novel disease, and limited information is available concerning serial chest radiographic and computed tomography (CT) findings. The aim of this study was to evaluate the changes in serial radiologic findings in patients with H7N9 pneumonia. METHODS: The two institutional ethics review boards approved this retrospective study. This study included 10 patients with H7N9 pneumonia. All patients underwent chest radiologic examinations at different time points...
2014: Chinese Medical Journal
C U Eze, B O Olajide, C C Ohagwu, L C Abonyi
BACKGROUND: Film rejects analysis (FRA) as part of quality assurance tests in radiography services, is carried out periodically to identify causes of film rejection and to proffer solutions to ameliorate such problems. OBJECTIVE: The study was carried out to estimate film rejection rate in a tertiary health facility in Benin, Nigeria and also to identify causes of film rejection in the centre. METHODS: This prospective study was carried out within 6 months...
January 2013: Nigerian Quarterly Journal of Hospital Medicine
Stefanie Weigel, Shoma Berkemeyer, Ralf Girnus, Alexander Sommer, Horst Lenzen, Walter Heindel
PURPOSE: To assess screening performance of a direct radiography (DR) photon-counting system versus statewide screening units with different digital technologies. MATERIALS AND METHODS: The local ethics board approved retrospective study of prospectively acquired data from the North Rhine-Westphalian mammography screening program (2009-2010). Informed consent was waived. Examinations in 13 312 women with a DR photon-counting system and statewide digital screening examinations in 993 822 women were included (37 computed radiography mammography systems and 55 DR systems)...
May 2014: Radiology
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