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https://www.readbyqxmd.com/read/27913629/investigation-of-imaging-magnification-in-radiostereometric-analysis
#1
Jordan S Broberg, Xunhua Yuan, Matthew G Teeter
Radiostereometric analysis is a highly accurate imaging technique. A recent advance in radiostereometric analysis is the use of flat panel digital radiography, which provides the opportunity for quick analysis using radiostereometric analysis. However, such a setup is expensive. Using large cassettes for small joints could minimize the cost. In this article, we investigated the influence of cassette size for small joint examinations with a biplanar radiostereometric analysis setup. Our results indicated that there is no significant difference in the precision when using large cassettes over small cassettes, whether or not imaging magnification is applied...
December 1, 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/27910309/spatial-resolution-measurements-of-the-advanced-radiographic-capability-x-ray-imaging-system-at-energies-relevant-to-compton-radiography
#2
G N Hall, N Izumi, O L Landen, R Tommasini, J P Holder, D Hargrove, D K Bradley, A Lumbard, J G Cruz, K Piston, J J Lee, E Romano, P M Bell, A C Carpenter, N E Palmer, B Felker, V Rekow, F V Allen
Compton radiography provides a means to measure the integrity, ρR and symmetry of the DT fuel in an inertial confinement fusion implosion near peak compression. Upcoming experiments at the National Ignition Facility will use the ARC (Advanced Radiography Capability) laser to drive backlighter sources for Compton radiography experiments and will use the newly commissioned AXIS (ARC X-ray Imaging System) instrument as the detector. AXIS uses a dual-MCP (micro-channel plate) to provide gating and high DQE at the 40-200 keV x-ray range required for Compton radiography, but introduces many effects that contribute to the spatial resolution...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27796823/comprehensive-treatment-with-chinese-medicine-in-patients-with-advanced-non-small-cell-lung-cancer-a-multicenter-prospective-cohort-study
#3
Jie Liu, Hong-Sheng Lin, Wei Hou, Bao-Jin Hua, Pei-Tong Zhang, Jie Li, Shen-Yu Wang, Ying Xie, Yue Zhang, Guang-Ru Xie, Mei-Ying Zhang, Wen-Guang Shi, Nian-Bo Guan, Tian-Yu Guan, Cong-Huang Li, Li-Yuan Lu, Ying Zhang, Dao-Rui Li, Hao Liu
OBJECTIVE: To determine whether additional Chinese medicine (CM) could prolong survival and improve the quality of life (QOL) in patients with advanced non-small cell lung cancer (NSCLC) compared with Western medicine (WM) alone. METHODS: This was a multicenter, prospective cohort study. A total of 474 hospitalized patients with stage III-IV NSCLC were recruited and divided into 2 groups. Patients in the WM group received radiotherapy, chemotherapy, and optimal supportive therapy according to the National Comprehensive Cancer Network (NCCN) guidelines...
October 28, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27777757/a-quasi-experimental-study-to-determine-the-effects-of-a-multifaceted-educational-intervention-on-hand-hygiene-compliance-in-a-radiography-unit
#4
Margaret O'Donoghue, Suk-Hing Ng, Lorna Kp Suen, Maureen Boost
BACKGROUND: Whilst numerous studies have investigated nurses' compliance with hand hygiene and use of alcohol-based hand rub (ABHR), limited attention has been paid to these issues in allied health staff. Reports have linked infections to breaches in infection control in the radiography unit (RU). With advances in medical imaging, a higher proportion of patients come into contact with RU staff increasing the need for good hand hygiene compliance. This study aimed to evaluate effectiveness on compliance of an intervention to improve awareness of hand hygiene in the RU of a district hospital...
2016: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/27764978/the-prevalence-of-sacroiliitis-in-patients-with-acne-vulgaris-using-isotretinoin
#5
Leyla Baykal Selçuk, Deniz Aksu Arıca, Hanife Baykal Şahin, Savas Yaylı, Sevgi Bahadır
BACKGROUND/OBJECTIVE: Acne vulgaris is a chronic inflammatory disease affecting the pilosebaceous unit in the skin. Isotretinoin is a synthetic vitamin A derivative regarded as the most effective agent in the treatment of acne. There have recently been increasing reports of adverse effects of isotretinoin on the skeletal system. Our aim in this study was to evaluate the rheumatic side-effects triggered by this drug, and particularly the prevalence of sacroiliitis. MATERIALS AND METHODS: A total of 73 patients receiving isotretinoin due to moderate or severe acne vulgaris were included...
November 16, 2016: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/27759836/advances-in-lung-ultrasound
#6
Miguel José Francisco, Antonio Rahal, Fabio Augusto Cardillo Vieira, Paulo Savoia Dias da Silva, Marcelo Buarque de Gusmão Funari
Ultrasound examination of the chest has advanced in recent decades. This imaging modality is currently used to diagnose several pathological conditions and provides qualitative and quantitative information. Acoustic barriers represented by the aerated lungs and the bony framework of the chest generate well-described sonographic artifacts that can be used as diagnostic aids. The normal pleural line and A, B, C, E and Z lines (also known as false B lines) are artifacts with specific characteristics. Lung consolidation and pneumothorax sonographic patterns are also well established...
July 2016: Einstein
https://www.readbyqxmd.com/read/27759428/comparison-of-digital-tomosynthesis-and-chest-radiography-for-the-detection-of-pulmonary-nodules-systematic-review-and-meta-analysis
#7
Jun H Kim, Kyung H Lee, Kyoung-Tae Kim, Hyun J Kim, Hyeong S Ahn, Yeo J Kim, Ha Y Lee, Yong S Jeon
OBJECTIVE: To compare the diagnostic accuracy of digital tomosynthesis (DTS) with that of chest radiography for the detection of pulmonary nodules by meta-analysis. METHODS: A systematic literature search was performed to identify relevant original studies from 1 January 1 1976 to 31 August 31 2016. The quality of included studies was assessed by quality assessment of diagnostic accuracy studies-2. Per-patient data were used to calculate the sensitivity and specificity and per-lesion data were used to calculate the detection rate...
December 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27725469/radiography-with-cosmic-ray-and-compact-accelerator-muons-exploring-inner-structure-of-large-scale-objects-and-landforms
#8
Kanetada Nagamine
Cosmic-ray muons (CRM) arriving from the sky on the surface of the earth are now known to be used as radiography purposes to explore the inner-structure of large-scale objects and landforms, ranging in thickness from meter to kilometers scale, such as volcanic mountains, blast furnaces, nuclear reactors etc. At the same time, by using muons produced by compact accelerators (CAM), advanced radiography can be realized for objects with a thickness in the sub-millimeter to meter range, with additional exploration capability such as element identification and bio-chemical analysis...
2016: Proceedings of the Japan Academy. Series B, Physical and Biological Sciences
https://www.readbyqxmd.com/read/27725317/timing-of-dental-development-in-osteogenesis-imperfecta-patients-with-and-without-bisphosphonate-treatment
#9
Ilkka Vuorimies, Heidi Arponen, Helena Valta, Outi Tiesalo, Marja Ekholm, Helena Ranta, Marjut Evälahti, Outi Mäkitie, Janna Waltimo-Sirén
Bisphosphonates have established their role as medical therapy for pediatric osteogenesis imperfecta (OI) patients. Since bisphosphonates have also been shown to delay tooth development in animal models, we aimed to assess whether the medication has a similar effect on children with OI. In this cross-sectional study, bisphosphonate-treated OI patients of whom dental panoramic tomograph was taken between 3 and 16years of age formed the study group. The patients, 22 in total, had been treated with pamidronate, zoledronic acid or risedronate for at least one year before the radiography...
January 2017: Bone
https://www.readbyqxmd.com/read/27652253/computed-tomography-will-the-slices-reveal-the-truth
#10
REVIEW
Harish Haridas, Abarajithan Mohan, Sravanthi Papisetti, Kranti K R Ealla
With the advances in the field of imaging sciences, new methods have been developed in dental radiology. These include digital radiography, density analyzing methods, cone beam computed tomography (CBCT), magnetic resonance imaging, ultrasound, and nuclear imaging techniques, which provide high-resolution detailed images of oral structures. The current review aims to critically elaborate the use of CBCT in endodontics.
August 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/27632984/synovial-inflammation-drives-structural-damage-in-hand-osteoarthritis-a-narrative-literature-review
#11
Luana Mancarella, Olga Addimanda, Carlotta Cavallari, Riccardo Meliconi
BACKGROUND: Ultrasound is one of the most promising candidates for detection of inflammation and structural damage in hand osteoarthritis. OBJECTIVE: To evaluate new advances of US as a diagnostic and prognostic tool in hand osteoarthritis assessment. METHODS: We conducted a Medline on PubMed search for articles about "ultrasonography" and "hand OA" published between January 2012 and 15th April 2016, limiting our search to articles on human adults in English, excluding those involving inflammatory diseases, visualization of joints other than hands, ultrasound guided injections and surgical procedures...
September 9, 2016: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/27539602/estimation-of-the-hydraulic-conductivities-of-lupine-roots-by-inverse-modelling-of-high-resolution-measurements-of-root-water-uptake
#12
Mohsen Zarebanadkouki, Félicien Meunier, Valentin Couvreur, Jimenez Cesar, Mathieu Javaux, Andrea Carminati
BACKGROUND AND AIMS: Radial and axial hydraulic conductivities are key parameters for proper understanding and modelling of root water uptake. Despite their importance, there is limited experimental information on how the radial and axial hydraulic conductivities vary along roots growing in soil. Here, a new approach was introduced to estimate inversely the profile of hydraulic conductivities along the roots of transpiring plants growing in soil. METHODS: A three-dimensional model of root water uptake was used to reproduce the measured profile of root water uptake along roots of lupine plant grown in soil...
August 18, 2016: Annals of Botany
https://www.readbyqxmd.com/read/27539060/s100a12-is-up-regulated-in-pulmonary-tuberculosis-and-predicts-the-extent-of-alveolar-infiltration-on-chest-radiography-an-observational-study
#13
Luis C Berrocal-Almanza, Surabhi Goyal, Abid Hussain, Tilman E Klassert, Dominik Driesch, Zarko Grozdanovic, Gadamm Sumanlatha, Niyaz Ahmed, Vijayalakshmi Valluri, Melanie L Conrad, Nickel Dittrich, Ralf R Schumann, Birgit Lala, Hortense Slevogt
Pulmonary tuberculosis (PTB) results in lung functional impairment and there are no surrogate markers to monitor the extent of lung involvement. We investigated the clinical significance of S100A12 and soluble receptor for advanced glycation end-products (sRAGE) for predicting the extent of lung involvement. We performed an observational study in India with 119 newly diagnosed, treatment naïve, sputum smear positive, HIV-negative PTB patients and 163 healthy controls. All patients were followed-up for six months...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27510507/advanced-imaging-in-osteoarthritis
#14
Qi Li, Keiko Amano, Thomas M Link, C Benjamin Ma
CONTEXT: Radiography is widely accepted as the gold standard for diagnosing osteoarthritis (OA), but it has limitations when assessing early stage OA and monitoring progression. While there are improvements in the treatment of OA, the challenge is early recognition. EVIDENCE ACQUISITION: MEDLINE and PubMed as well as professional orthopaedic and imaging websites were reviewed from 2006 to 2016. STUDY DESIGN: Clinical review. LEVEL OF EVIDENCE: Level 4...
September 2016: Sports Health
https://www.readbyqxmd.com/read/27497205/diagnostic-imaging-of-dental-disease-in-pet-rabbits-and-rodents
#15
REVIEW
Vittorio Capello
Diagnostic imaging techniques are of paramount importance for dentistry and oral disorders of rabbits, rodents, and other exotic companion mammals. Aside from standard radiography, stomatoscopy is a complementary tool allowing a thorough and detailed inspection of the oral cavity. Computed tomography (CT) generates multiple 2-dimensional views and 3-dimensional reconstructions providing superior diagnostic accuracy also useful for prognosis and treatment of advanced dental disease and its related complications...
September 2016: Veterinary Clinics of North America. Exotic Animal Practice
https://www.readbyqxmd.com/read/27478694/a-preliminary-case-study-of-the-effect-of-shoe-wearing-on-the-biomechanics-of-a-horse-s-foot
#16
Olga Panagiotopoulou, Jeffery W Rankin, Stephen M Gatesy, John R Hutchinson
Horse racing is a multi-billion-dollar industry that has raised welfare concerns due to injured and euthanized animals. Whilst the cause of musculoskeletal injuries that lead to horse morbidity and mortality is multifactorial, pre-existing pathologies, increased speeds and substrate of the racecourse are likely contributors to foot disease. Horse hooves have the ability to naturally deform during locomotion and dissipate locomotor stresses, yet farriery approaches are utilised to increase performance and protect hooves from wear...
2016: PeerJ
https://www.readbyqxmd.com/read/27478389/reliability-of-a-proposed-ultrasonographic-grading-scale-for-severity-of-primary-knee-osteoarthritis
#17
Mohamed Mortada, Ayman Zeid, Mirvat Abd El-Hamid Al-Toukhy, Nillie Ezzeldin, M Elgawish
OBJECTIVES: The objective of this study was to examine the concordance of a grading scale (0-4) of medial femoral osteophytes in knee joint detected by ultrasound (US) compared with the corresponding grades (0-4) of Kellgren-Lawrence (K&L) scale of conventional radiography and clinical joint examination. PATIENTS AND METHODS: A cross-sectional observational study included 160 patients with knee pain who fulfilled the American College of Rheumatology (ACR) criteria for knee osteoarthritis (KOA) and 20 patients with knee pain who have not fulfilled the ACR criteria for KOA...
2016: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27476706/the-diagnosis-and-treatment-of-multiple-myeloma
#18
Christian Gerecke, Stephan Fuhrmann, Susanne Strifler, Martin Schmidt-Hieber, Hermann Einsele, Stefan Knop
BACKGROUND: Multiple myeloma is a malignant disease of plasma cells with a worldwide incidence of 6-7 cases per 100 000 persons per year. It is among the 20 most common types of cancer in Germany. METHODS: This review is based on pertinent publications up to December 2015 that were retrieved by a selective search of PubMed employing the terms "multiple myeloma" AND "therapy" OR "diagnostic." Systematic reviews, meta-analyses, randomized controlled trials, and treatment recommendations from Germany and abroad were considered...
July 11, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/27472117/measurement-of-hydrodynamic-growth-near-peak-velocity-in-an-inertial-confinement-fusion-capsule-implosion-using-a-self-radiography-technique
#19
L A Pickworth, B A Hammel, V A Smalyuk, A G MacPhee, H A Scott, H F Robey, O L Landen, M A Barrios, S P Regan, M B Schneider, M Hoppe, T Kohut, D Holunga, C Walters, B Haid, M Dayton
First measurements of hydrodynamic growth near peak implosion velocity in an inertial confinement fusion (ICF) implosion at the National Ignition Facility were obtained using a self-radiographing technique and a preimposed Legendre mode 40, λ=140  μm, sinusoidal perturbation. These are the first measurements of the total growth at the most unstable mode from acceleration Rayleigh-Taylor achieved in any ICF experiment to date, showing growth of the areal density perturbation of ∼7000×. Measurements were made at convergences of ∼5 to ∼10× at both the waist and pole of the capsule, demonstrating simultaneous measurements of the growth factors from both lines of sight...
July 15, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27471524/working-length-determination-using-cone-beam-computed-tomography-periapical-radiography-and-electronic-apex-locator-in-teeth-with-apical-periodontitis-a-clinical-study
#20
André Luiz Gomide de Morais, Ana Helena Gonçalves de Alencar, Cyntia Rodrigues de Araújo Estrela, Daniel Almeida Decurcio, Carlos Estrela
INTRODUCTION: The purpose of this clinical study was to compare the accuracy of working length (WL) determination using cone-beam computed tomography (CBCT), conventional periapical radiographies and electronic apex locator. METHODS AND MATERIALS: This study was conducted during root canal treatment of 19 patients with a total of 30 single-rooted teeth diagnosed with apical periodontitis. After taking the initial parallel periapical radiographies, the initial file was advanced into the canal until the WL was detected by the apex locator...
2016: Iranian Endodontic Journal
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