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https://www.readbyqxmd.com/read/28817780/us-internists-awareness-and-use-of-overtreatment-guidelines-a-national-survey
#1
Kira L Ryskina, Eric S Holmboe, Elizabeth Bernabeo, Rachel M Werner, Judy A Shea, Judith A Long
OBJECTIVES: To assess physician views and perceived adoption of overtreatment guidelines and measure whether adoption of these guidelines influenced the recommendation of a targeted service. STUDY DESIGN: A cross-sectional survey mailed from July 2014 to January 2015 to 902 internists who completed residency between 2003 and 2013, randomly selected from the American Medical Association Masterfile. METHODS: Poisson regression was used to model the rate of recommending a targeted service included in the guidelines, based on the level of guideline adoption...
July 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/28817700/the-loss-and-recovery-of-vertebrate-vision-examined-in-microplates
#2
Robert J Thorn, Danielle E Clift, Oladele Ojo, Ruth M Colwill, Robbert Creton
Regenerative medicine offers potentially ground-breaking treatments of blindness and low vision. However, as new methodologies are developed, a critical question will need to be addressed: how do we monitor in vivo for functional success? In the present study, we developed novel behavioral assays to examine vision in a vertebrate model system. In the assays, zebrafish larvae are imaged in multiwell or multilane plates while various red, green, blue, yellow or cyan objects are presented to the larvae on a computer screen...
2017: PloS One
https://www.readbyqxmd.com/read/28817410/fatty-infiltrate-of-the-lumbar-multifidus-muscles-predicts-return-to-play-in-young-athletes-with-extension-based-low-back-pain
#3
John Winslow, Andrew Getzin, Hilary Greenberger, Walter Silbert
OBJECTIVE: To evaluate the predictive value of fatty infiltrate of the lumbar multifidus muscles (LMM) for return to play in young athletes with extension-based low back pain (EB LBP). DESIGN: Retrospective cohort study. SETTING: Hospital-based sports medicine practice. PATIENTS: Sixty-two athletes, 61.3% female, and 38.7% male, mean age 14.8 years, with a primary complaint of EB LBP who underwent magnetic resonance imaging (MRI); 46...
August 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28816146/quality-assessment-of-stereotactic-radiosurgery-of-a-melanoma-brain-metastases-model-using-a-mouselike-phantom-and-the-small-animal-radiation-research-platform
#4
Cheng-Chia Wu, Kunal R Chaudhary, Yong Hum Na, David Welch, Paul J Black, Adam M Sonabend, Peter Canoll, Yvonne M Saenger, Tony J C Wang, Cheng-Shie Wuu, Tom K Hei, Simon K Cheng
PURPOSE: To establish a novel preclinical model for stereotactic radiosurgery (SRS) with combined mouselike phantom quality assurance in the setting of brain metastases. METHODS AND MATERIALS: C57B6 mice underwent intracranial injection of B16-F10 melanoma cells. T1-weighted postcontrast magnetic resonance imaging (MRI) was performed on day 11 after injection. The MRI images were fused with cone beam computed tomography (CBCT) images using the Small Animal Radiation Research Platform (SARRP)...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28814956/rapid-rapamycin-only-induced-osteogenic-differentiation-of-blood-derived-stem-cells-and-their-adhesion-to-natural-and-artificial-scaffolds
#5
Carpentieri Arianna, Cozzoli Eliana, Acri Flavio, Ranalli Marco, Diedenhofen Giacomo, Scimeca Manuel, Bonanno Elena, Gambacurta Alessandra
Stem cells are a centerpiece of regenerative medicine research, and the recent development of adult stem cell-based therapy systems has vigorously expanded the scope and depth of this scientific field. The regeneration of damaged and/or degraded bone tissue in orthopedic, dental, or maxillofacial surgery is one of the main areas where stem cells and their regenerative potential could be used successfully, requiring tissue engineering solutions incorporating an ideal stem cell type paired with the correct mechanical support...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28814253/pet-mr-tomographs-a-review-with-technical-radiochemical-and-clinical-perspectives
#6
Giampiero Giovacchini, Elisabetta Giovannini, Mattia Riondato, Andrea Ciarmiello
In the last decade, an increasing number of positron emission tomography / magnetic resonance (PET/MR) tomographs have been installed and many clinical studies were performed in the neurological field. Although PET/MR has many favorable properties to support the application in brain imaging, attenuation correction, and therefore accurate quantification, is a problem that still requires optimal solution. In this review we have summarized the three main methods that are currently used to correct for attenuation in PET/MR, namely atlas- or template-based methods, segmentation-based methods, and reconstruction-based methods...
August 16, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28812769/multiplex-coaxial-flow-focusing-for-producing-multicompartment-janus-microcapsules-with-tunable-material-compositions-and-structural-characteristics
#7
Qiang Wu, Chaoyu Yang, Guangli Liu, Wanghuai Xu, Zhiqiang Zhu, Ting Si, Ronald X Xu
We propose a simple but efficient multiplex coaxial flow focusing (MCFF) process for single-step fabrication of multicompartment Janus microcapsules (MJMs) in a wide range of operating parameters. The produced MJMs consist of a multicompartmental core-shell structure with material compositions tunable in individual shell and core compartments. Potential applications of such a MJM agent are demonstrated in both benchtop and in vitro experiments. For the benchtop experiment, magnetic nanoparticles are loaded into one of the shell compartments and photopolymerized under ultraviolet light for controlled alignment and rotation of the microcapsules in a magnetic field...
August 16, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28812309/murine-pulmonary-imaging-at-7t-t2-and-t1-with-anisotropic-ute
#8
Jinbang Guo, Xuefeng Cao, Zackary I Cleveland, Jason C Woods
PURPOSE: To measure the T2* and T1 of mouse lung at 7T via anisotropic-resolution radial ultrashort echo-time imaging with ellipsoidal k-space coverage. METHODS: Ellipsoidal field-of-view was created by expanding uniform spherical k-space coverage. The effects of T2* and ellipsoidal sampling on image resolution were investigated by using point-spread-function analysis and resolution phantoms. Finally, this ellipsoidal sampling approach was used to measure the lung T2* and T1 of healthy C57BL/6 mice at the increasingly common preclinical field strength of 7T...
August 15, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28811015/multiple-targeted-graphene-based-nanocarrier-for-intracellular-imaging-of-mrnas
#9
Ying Wang, Zhaohui Li, Misha Liu, Jinjin Xu, Dehong Hu, Yuehe Lin, Jinghong Li
Simultaneous detection and imaging of multiple intracellular messenger RNA (mRNAs) hold great significant for early cancer diagnostics and preventive medicine development. Herein, we propose a multiple-targeted graphene oxide (GO) nanocarrier that can simultaneously detect and image different type mRNAs in living cells. First of all, in vitro detection of multiple targets have been realized successfully based on the multiple-targeted GO nanocarrier with linear relationship ranging from 3 nM to 200 nM, as well as sensitive detection limit of 1...
August 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28810991/posterior-cruciate-ligament-injuries-associated-with-military-survival-swim-training
#10
Michael S Crowell, John S Mason, Matthew A Posner, Chad A Haley
OBJECTIVES: Posterior cruciate ligament (PCL) injuries are relatively common injuries associated with athletic activities and high-energy trauma. Posterolateral corner (PLC) injuries frequently accompany injury to the PCL. Diagnosis can be challenging and requires a comprehensive history and physical examination. Patients frequently report vague, nonspecific symptoms and the mechanism of injury is often useful in localizing injured structures. Two of the more common mechanisms for PCL injury include a direct blow to the proximal anterior tibia with the knee flexed, as well as a significant knee hyperextension injury...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810342/-study-on-the-excavated-wooden-carved-acupuncture-statue-of-the-western-han-dynasty-in-laoguanshan
#11
L X Huang
The painted red lines on the wooden carved acupuncture statue of Western Han Dynasty in Laoguanshan, illustrate the running courses of the"eleven meridians"on the body surface in the early meridian doctrine. The carved white lines show the body surface running courses of the"twelve meridians"in the meridian doctrine and the Sanjiao images in Sanjiao doctrine. The dots on the wooden carved acupuncture statue are of two categories, one of them is of regulatory, round and concave spots, which are carved before the process of lacquer undercoat...
May 28, 2017: Zhonghua Yi Shi za Zhi, Chinese Journal of Medical History
https://www.readbyqxmd.com/read/28809198/a-comparison-of-danish-and-canadian-consumer-medication-information
#12
Helen Monkman, Christian Nøhr, Andre W Kushniruk
Many people around the world use prescription medications. Consumers often require information about their medications to support taking them safely and effectively. One source of such information is Consumer Medication Information (CMI). Canadians typically receive printed CMI when a new prescription is filled whereas Danes have the online resource min.medicin.dk. This study compared the content and design of Danish and Canadian CMI. Danish CMI satisfied seven of the 11 content utility criteria (developed in previous work) identified as supporting the safe and effective medication use...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28808784/the-history-of-optic-chiasm-from-antiquity-to-the-twentieth-century
#13
REVIEW
Claudia Florida Costea, Şerban Turliuc, Cătălin Buzdugă, Andrei Ionuţ Cucu, Gabriela Florenţa Dumitrescu, Anca Sava, Mihaela Dana Turliuc
PURPOSE: The optic chiasm is an essential structure located at the skull base that stirred over time the curiosity of anatomists, who became more and more interested in its structure and function. Through centuries, the optic chiasm was viewed as a vessel crossing, a way of transporting tears secreted by the brain to the eye, integrating images, or responsible for coordinated eye movements. The paper aims to overview the history of understanding the optic chiasm from the beginnings of antiquity to the twentieth century...
August 14, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28807158/effect-of-chinese-herbal-medicine-on-molecular-imaging-of-neurological-disorders
#14
Yao Yao, Ting Chen, Jing Huang, Hong Zhang, Mei Tian
Chinese herbal medicine has been used to treat a wide variety of neurological disorders including stroke, Alzheimer's disease, and Parkinson's disease. However, its mechanism behind the effectiveness remains unclear. Recently, molecular imaging technology has been applied for this purpose, since it can assess the cellular or molecular function in a living subject by using specific imaging probes and/or radioactive tracers, which enable efficient analysis and monitoring the therapeutic response repetitively...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28807036/t-time-a-data-repository-of-t-cell-and-calcium-release-activated-calcium-channel-activation-imagery
#15
Cody Arbuckle, Milton Greenberg, Adrienne Bergh, Rene German, Nick Sirago, Erik Linstead
BACKGROUND: A fundamental understanding of live-cell dynamics is necessary in order to advance scientific techniques and personalized medicine. For this understanding to be possible, image processing techniques, probes, tracking algorithms and many other methodologies must be improved. Currently there are no large open-source datasets containing live-cell imaging to act as a standard for the community. As a result, researchers cannot evaluate their methodologies on an independent benchmark or leverage such a dataset to formulate scientific questions...
August 15, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28806907/effect-of-acupuncture-and-its-influence-on-cerebral-activity-in-perimenopausal-insomniacs-study-protocol-for-a-randomized-controlled-trial
#16
Xiao Wu, Wei Zhang, Yuanyuan Qin, Xuguang Liu, Zhengyan Wang
BACKGROUND: Perimenopausal insomnia is one of the core symptoms of the menopausal transition. Acupuncture is considered to exert a positive effect on restoring the normal sleep-wake cycle. However, there is little intuitive evidence besides evaluation using clinical effectiveness scales. We therefore designed this study, aiming to use more intuitive and reliable detection techniques such as functional magnetic resonance imaging before and after applying acupuncture to provide neuroimaging evidence, as well as to verify the effectiveness with other curative effect indicators...
August 14, 2017: Trials
https://www.readbyqxmd.com/read/28804918/low-rank-approximation-methods-for-mr-fingerprinting-with-large-scale-dictionaries
#17
Mingrui Yang, Dan Ma, Yun Jiang, Jesse Hamilton, Nicole Seiberlich, Mark A Griswold, Debra McGivney
PURPOSE: This work proposes new low rank approximation approaches with significant memory savings for large scale MR fingerprinting (MRF) problems. THEORY AND METHODS: We introduce a compressed MRF with randomized singular value decomposition method to significantly reduce the memory requirement for calculating a low rank approximation of large sized MRF dictionaries. We further relax this requirement by exploiting the structures of MRF dictionaries in the randomized singular value decomposition space and fitting them to low-degree polynomials to generate high resolution MRF parameter maps...
August 13, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28804703/hybrid-intraoperative-imaging-techniques-in-radioguided-surgery-present-clinical-applications-and-future-outlook
#18
REVIEW
S L Bugby, J E Lees, A C Perkins
PURPOSE: This review aims to summarise the hybrid modality radioguidance techniques currently in clinical use and development, and to discuss possible future avenues of research. Due to the novelty of these approaches, evidence of their clinical relevance does not yet exist. The purpose of this review is to inform nuclear medicine practitioners of current cutting edge research in radioguided surgery which may enter standard clinical practice within the next 5-10 years. Hybrid imaging is of growing importance to nuclear medicine diagnostics, but it is only with recent advances in technology that hybrid modalities are being investigated for use during radioguided surgery...
2017: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28804642/e-learning-for-medical-imaging-specialists-introducing-blended-learning-in-a-nuclear-medicine-specialist-course
#19
Torjan Haslerud, Andreas Julius Tulipan, Robert M Gray, Martin Biermann
BACKGROUND: While e-learning has become an important tool in teaching medical students, the training of specialists in medical imaging is still dominated by lecture-based courses. PURPOSE: To assess the potential of e-learning in specialist education in medical imaging. MATERIAL AND METHODS: An existing lecture-based five-day course in Clinical Nuclear Medicine (NM) was enhanced by e-learning resources and activities, including practical exercises...
July 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28804578/using-nanoparticles-in-medicine-for-liver-cancer-imaging
#20
REVIEW
Farideh Farokhi Moghadam
One of the most important types of liver cancer is hepatocellular carcinoma (HCC). HCC is the fifth most common cancer, and its correct diagnosis is very important. For the quick diagnosis of HCC, the use of nanoparticles is helpful. The major applications of nanoparticles are in medicine for organ imaging. Two methods of liver imaging are X-ray computed tomography (CT) and magnetic resonance imaging (MRI). In this review, we attempt to summarize some of the contrast agents used in imaging such as superparamagnetic iron oxide nanoparticles (SPIONs) and iron oxide nanoparticles (IONPs), various types of enhanced MRI for the liver, and nanoparticles like gold (AuNPs), which is used to develop novel CT imaging agents...
July 2017: Oman Medical Journal
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