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Mobile radiography

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https://www.readbyqxmd.com/read/28415987/validity-and-reliability-of-fluoroscopy-for-digital-radiography-a-new-way-to-evaluate-diaphragmatic-mobility
#1
Bruna Estima Leal, Márcia Aparecida Gonçalves, Liseane Gonçalves Lisboa, Larissa Martins Schmitz Linné, Michelle Gonçalves de Souza Tavares, Wellington Pereira Yamaguti, Elaine Paulin
BACKGROUND: Fluoroscopy is considered the most accurate method to evaluate the diaphragm, yet most existing methods for measuring diaphragmatic mobility using fluoroscopy are complex. To assess the validity and reliability of a new evaluation method of diaphragmatic motion using fluoroscopy by digital radiography of healthy adults. METHODS: Twenty-six adults were evaluated, according to the parameters: anthropometry and pulmonary function test. The evaluation of diaphragm mobility by means of fluoroscopy by digital radiography method was randomly conducted by two raters (A and B)...
April 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28364571/3d-multislice-and-cone-beam-computed-tomography-systems-for-dental-identification
#2
REVIEW
Hana Eliášová, Taťjana Dostálová
3D Multislice and Cone-beam computed tomography (CBCT) in forensic odontology has been shown to be useful not only in terms of one or a few of dead bodies but also in multiple fatality incidents. 3D Multislice and Cone-beam computed tomography and digital radiography were demonstrated in a forensic examination form. 3D images of the skull and teeth were analysed and validated for long ante mortem/post mortem intervals. The image acquisition was instantaneous; the images were able to be optically enlarged, measured, superimposed and compared prima vista or using special software and exported as a file...
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28335759/mobile-radiography-services-in-nursing-homes-a-systematic-review-of-residents-and-societal-outcomes
#3
Elin Kjelle, Kristin Bakke Lysdahl
BACKGROUND: Demographic changes are leading to an ageing population in Europe, and predict an increase in the number of nursing home residents over the next 30 years. Nursing home residents need specialised healthcare services such as radiology due to both chronic and acute illnesses. Mobile radiography, x-ray examinations performed in the nursing homes, may be a good way of providing services to this population. The aim of this systematic review was to identify the outcomes of mobile radiography services for nursing home residents and society...
March 23, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28297454/evaluation-of-cassette-based-digital-radiography-detectors-using-standardized-image-quality-metrics-aapm-tg-150-draft-image-detector-tests
#4
Guang Li, Travis C Greene, Thomas K Nishino, Charles E Willis
The purpose of this study was to evaluate several of the standardized image quality metrics proposed by the American Association of Physics in Medicine (AAPM) Task Group 150. The task group suggested region-of-interest (ROI)-based techniques to measure nonuniformity, minimum signal-to-noise ratio (SNR), number of anomalous pixels, and modulation transfer function (MTF). This study evaluated the effects of ROI size and layout on the image metrics by using four different ROI sets, assessed result uncertainty by repeating measurements, and compared results with two commercially available quality control tools, namely the Carestream DIRECTVIEW Total Quality Tool (TQT) and the GE Healthcare Quality Assurance Process (QAP)...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28297296/development-of-a-universal-medical-x-ray-imaging-phantom-prototype
#5
Annemari Groenewald, Willem A Groenewald
Diagnostic X-ray imaging depends on the maintenance of image quality that allows for proper diagnosis of medical conditions. Maintenance of image quality requires quality assurance programs on the various X-ray modalities, which consist of projection radiography (including mobile X-ray units), fluoroscopy, mammography, and computed tomography (CT) scanning. Currently a variety of modality-specific phantoms are used to perform quality assurance (QA) tests. These phantoms are not only expensive, but suitably trained personnel are needed to successfully use them and interpret the results...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28291722/effectiveness-of-interventions-for-diagnosis-and-treatment-of-tuberculosis-in-hard-to-reach-populations-in-countries-of-low-and-medium-tuberculosis-incidence-a-systematic-review
#6
REVIEW
Charlotte C Heuvelings, Sophia G de Vries, Patrick F Greve, Benjamin J Visser, Sabine Bélard, Saskia Janssen, Anne L Cremers, René Spijker, Beth Shaw, Ruaraidh A Hill, Alimuddin Zumla, Andreas Sandgren, Marieke J van der Werf, Martin P Grobusch
Tuberculosis is over-represented in hard-to-reach (underserved) populations in high-income countries of low tuberculosis incidence. The mainstay of tuberculosis care is early detection of active tuberculosis (case finding), contact tracing, and treatment completion. We did a systematic review with a scoping component of relevant studies published between 1990 and 2015 to update and extend previous National Institute for Health and Care Excellence (NICE) reviews on the effectiveness of interventions for identifying and managing tuberculosis in hard-to-reach populations...
March 10, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28236124/prevalence-and-clinical-significance-of-lumbosacral-transitional-vertebra-lstv-in-a-young-back-pain-population-with-suspected-axial-spondyloarthritis-results-of-the-spondyloarthritis-caught-early-space-cohort
#7
F de Bruin, S Ter Horst, J L Bloem, R van den Berg, M de Hooge, F van Gaalen, H Dagfinrud, M van Oosterhout, R Landewé, D van der Heijde, M Reijnierse
OBJECTIVE: To determine in a cohort of young patients with suspected axial spondyloarthritis (axSpA), the prevalence of lumbosacral transitional vertebra (LSTV), its association with local bone marrow edema (BME) and lumbar spine degeneration, and the potential relationship with MRI findings and clinical signs of axSpA. MATERIALS AND METHODS: Baseline imaging studies and clinical information of patients from the SPondyloArthritis Caught Early-cohort (back pain ≥3 months, ≤2 years, onset <45 years) were used...
May 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28196041/change-in-talar-translation-in-the-coronal-plane-after-mobile-bearing-total-ankle-replacement-and-its-association-with-lower-limb-and-hindfoot-alignment
#8
Young Yi, Jae-Ho Cho, Ji-Beom Kim, Jae-Young Kim, Su-Yeon Park, Woo Chun Lee
BACKGROUND: Mobile-bearing total ankle replacement (TAR) enables motion at the tibial implant-polyethylene insert interface. This motion could lead to coronal translation of the talus relative to the tibia and may affect radiographic outcome. We aimed to assess the translation of the talus before and after mobile-bearing TAR to determine whether translation of the talus after TAR is associated with coronal plane alignment of the lower limb and hindfoot as well as to investigate the complications associated with talar translation...
February 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28164050/extraskeletal-mesenchymal-chondrosarcoma-of-shoulder-an-extremely-rare-case
#9
Salman Ghaffari, Ali Farsavian, Seyed Mohamad Mehdi Daneshpoor, Masoud Shayesteh Azar
INTRODUCTION: Extraskeletal chondrosarcoma (EMC) is a rare, aggressive neoplasm which has been seen in the soft tissue area. This soft tissue sarcoma is classified to myxoid and mesenchymal based on histologic criteria. The mesenchymal subtype has a poor prognosis. In approximately 50% of patient with EMC, we could observe soft tissue lesion and stippled calcification in the conventional radiography. CASE REPORT: In the current paper, we introduced a 47-year-old Iranian male patient having painless, mobile, nontender, and firm mass in left shoulder...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28064140/reduced-radiation-dose-and-improved-image-quality-using-a-mini-mobile-digital-imaging-system-in-a-neonatal-intensive-care-unit
#10
Tae-Hoon Kim, Jong-Hyun Ryu, Chang-Won Jeong, Hong Young Jun, Dong-Woon Heo, Seung Hyun Lee, Yeon Kyun Oh, Mi-Jung Lee, Kwon-Ha Yoon
This study was aimed to assess the radiation dose and image quality of a mini-mobile digital imaging (mini-DI) system for neonatal chest radiography and compared to conventional digital radiography (DR). A total of 64 neonates were examined and anatomical landmarks were assessed. The entrance surface dose of mini DI and conventional DR was 26.64±0.15 μGy and 49.11±1.46 μGy, respectively (p<0.001). The mean SNR values for mini-DI and DR were 233.2±5.1 and 31.6±1.2, and 10% MTF values were 131 and 161μm...
December 6, 2016: Clinical Imaging
https://www.readbyqxmd.com/read/28050548/monostotic-fibrous-dysplasia-of-the-metacarpal-a-case-report
#11
Kátia Tôrres Batista, Hugo José de Araújo, Ulises Prieto Y Schwartzman
Fibrous dysplasia is a bone disease characterized by abnormal differentiation of fibrous tissue in the bones; it is often asymptomatic. It may affect one bone (monostotic) or several bones (polyostotic). The monostotic form primarily affects the ribs, but hardly ever affects the hand. It is important to make the differential diagnosis with malignant bone tumors. This article describes the treatment and outcome of a rare case of a patient admitted with a history of tumor growth in the right hand, diagnosed as fibrous dysplasia of the right second metacarpal...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28046251/su-g-iep3-02-characteristics-of-in-vivo-mosfet-dosimeters-for-diagnostic-x-ray-low-dose-measurements
#12
S Li, S Ali, K Harper, Q Liang, D Serratore
PURPOSE: To correct in-vivo metal-oxide-semiconductor field-effect transistor (MOSFET) dosimeters dependence on X-ray energy, dose and dose rate, and temperature in order to measure doses or exposures on several anatomic points of interest undergoing some routine radiographs. METHODS: A mobile MOSFET system (BEST Medical) was carefully calibrated with X-ray at kVp of 70, 80, 100, 120, and 138 kVp, phantom temperatures at 0, 21, and 43 oC, and exposure range from 0...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27994532/severe-hypoxemia-in-a-healthy-donor-for-allogeneic-hematopoietic-stem-cell-transplantation-after-only-the-first-administration-of-granulocyte-colony-stimulating-factor
#13
Keita Yamamoto, Noriko Doki, Yasushi Senoo, Yuho Najima, Takeshi Kobayashi, Kazuhiko Kakihana, Kyoko Haraguchi, Yoshiki Okuyama, Hisashi Sakamaki, Kazuteru Ohashi
BACKGROUND: Granulocyte-colony stimulating factor (G-CSF) is widely used to mobilize peripheral blood stem cells (PBSCs) in healthy donors. A few reports have shown that some healthy donors developed acute respiratory distress syndrome or capillary leak syndrome after more than several rounds of G-CSF administration or leukapheresis. CASE REPORT: We report the case of a healthy donor for allogeneic stem cell transplantation who developed severe hypoxemia 1 h after only the first administration of G-CSF...
November 2016: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/27929508/development-of-a-universal-medical-x-ray-imaging-phantom-prototype
#14
Annemari Groenewald, Willem A Groenewald
Diagnostic X-ray imaging depends on the maintenance of image quality that allows for proper diagnosis of medical conditions. Maintenance of image quality requires quality assurance programs on the various X-ray modalities, which consist of pro-jection radiography (including mobile X-ray units), fluoroscopy, mammography, and computed tomography (CT) scanning. Currently a variety of modality-specific phantoms are used to perform quality assurance (QA) tests. These phantoms are not only expensive, but suitably trained personnel are needed to successfully use them and interpret the results...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27876330/pneumomediastinum-pneumothorax-and-subcutaneous-emphysema-caused-by-colonoscopic-perforation-a-report-of-two-cases
#15
Pyong Wha Choi
BACKGROUND: Although colonoscopy is generally a safe procedure, lethal complications can occur. Colonoscopic perforation is one of the most serious complications, and it can present with various clinical symptoms and signs. Aggravating abdominal pain and free air on simple radiography are representative clinical manifestations of colonoscopic perforation. However, unusual symptoms and signs, such as dyspnea and subcutaneous emphysema, which are less likely to be related with complicating colonoscopy, may obscure correct clinical diagnosis...
April 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27785748/lung-ultrasound-will-soon-replace-chest-radiography-in-the-diagnosis-of-acute-community-acquired-pneumonia
#16
REVIEW
Jean-Eudes Bourcier, Sergiu Braga, Didier Garnier
Acute community-acquired pneumonia should be diagnosed early to avoid most complications. The common diagnostic tools were represented by blood tests and chest X-ray with CT scan coming as a second-line exploration. The presence of air in the pulmonary parenchyma has long been thought of as not explorable by ultrasound. However, since the 1990s, several teams have described a semiology of ultrasonography of pulmonary diseases. Moreover, the safety of the technique and the development of mobile and ultra-portable devices have offered it as a first-line examination by a non-radiologist physician...
December 2016: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/27759881/endodontic-procedures-for-retreatment-of-periapical-lesions
#17
REVIEW
Massimo Del Fabbro, Stefano Corbella, Patrick Sequeira-Byron, Igor Tsesis, Eyal Rosen, Alessandra Lolato, Silvio Taschieri
BACKGROUND: When primary root canal therapy fails, periapical lesions can be retreated with or without surgery. Root canal retreatment is a non-surgical procedure that involves removal of root canal filling materials from the tooth, followed by cleaning, shaping and obturating of the canals. Root-end resection is a surgical procedure that involves exposure of the periapical lesion through an osteotomy, surgical removal of the lesion, removal of part of the root-end tip, disinfection and, commonly, retrograde sealing or filling of the apical portion of the remaining root canal...
October 19, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27751688/microbial-impacts-on-99m-tc-migration-through-sandstone-under-highly-alkaline-conditions-relevant-to-radioactive-waste-disposal
#18
Sarah L Smith, Christopher Boothman, Heather A Williams, Beverly L Ellis, Joanna Wragg, Julia M West, Jonathan R Lloyd
Geological disposal of intermediate level radioactive waste in the UK is planned to involve the use of cementitious materials, facilitating the formation of an alkali-disturbed zone within the host rock. The biogeochemical processes that will occur in this environment, and the extent to which they will impact on radionuclide migration, are currently poorly understood. This study investigates the impact of biogeochemical processes on the mobility of the radionuclide technetium, in column experiments designed to be representative of aspects of the alkali-disturbed zone...
January 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27685102/evaluation-of-cassette-based-digital-radiography-detectors-using-standardized-image-quality-metrics-aapm-tg-150-draft-image-detector-tests
#19
Guang Li, Travis C Greene, Thomas K Nishino, Charles E Willis
The purpose of this study was to evaluate several of the standardized image quality metrics proposed by the American Association of Physics in Medicine (AAPM) Task Group 150. The task group suggested region-of-interest (ROI)-based techniques to measure nonuniformity, minimum signal-to-noise ratio (SNR), number of anomalous pixels, and modulation transfer function (MTF). This study evaluated the effects of ROI size and layout on the image metrics by using four different ROI sets, assessed result uncertainty by repeating measurements, and compared results with two commercially available quality control tools, namely the Carestream DIRECTVIEW Total Quality Tool (TQT) and the GE Healthcare Quality Assurance Process (QAP)...
September 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27676735/functional-outcomes-after-rehabilitation-of-sternoclavicular-disjunction
#20
Laila Mahir, Siham Zahi, Soumia Meftah, Herman Azanmasso, Fatima Lmidmani, Abdellatif El Fatimi
OBJECTIVE: Introduction: the sternoclavicular joint is very stable due to a strong ligamentous system, disjunctions are rare. Their diagnosis is difficult. Plain radiography does not allow a proper analysis and use of CT scans is necessary. They can be life-threatening in their posterior variety due to the proximity of the noble elements of the mediastinum. OBJECTIVE: The aim of this study is to describe the evolution of the sternoclavicular disjunction after functional rehabilitation through 6 observations...
September 2016: Annals of Physical and Rehabilitation Medicine
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