keyword
MENU ▼
Read by QxMD icon Read
search

Magnet

keyword
https://www.readbyqxmd.com/read/28817878/re-diagnostic-performance-of-diffusion-weighted-magnetic-resonance-imaging-in-differentiating-human-renal-lesions-benignity-or-malignancy-a%C3%A2-meta-analysis
#1
https://www.readbyqxmd.com/read/28817780/us-internists-awareness-and-use-of-overtreatment-guidelines-a-national-survey
#2
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/28817777/predicting-nox-catalysis-by-quantifying-ce-3-from-surface-and-lattice-oxygen
#3
Vinod Kumar Paidi, Louisa Savereide, David J Childers, Justin M Notestein, Charles Alexander Roberts, Johan van Lierop
Our work introduces a novel technique based on the magnetic response of Ce(3+) and molecular oxygen adsorbed on the surface of nanoceria and ceria-based catalysts that quantifies the number and type of defects, and demonstrates that this information is the missing link that finally enables predictive design of NOx catalysis in ceria-based systems. The new insights into ceria catalysis are enabled by quantifying the above for different ceria nanoparticle shapes (i.e. surface terminations) and O2 partial pressure...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28817662/single-scan-rest-stress-imaging-with-99mtc-sestamibi-and-cadmium-zinc-telluride-based-spect-for-hyperemic-flow-quantification-a-feasibility-study-evaluated-with-cardiac-magnetic-resonance-imaging
#4
Yu-Hua Dean Fang, Yuan-Chang Liu, Kung-Chu Ho, Feng-Cheng Kuo, Ching-Fang Yang, Tzu-Chen Yen, I-Chang Hsieh
INTRODUCTION: We aimed to evaluate whether the hyperemic myocardial blood flow (MBF) can be estimated using cadmium zinc telluride (CZT)-based single-photon emission computed tomography (SPECT) cameras with a single, rapid rest/stress dynamic scan. Dynamic contrast-enhanced (DCE) cardiac magnetic resonance imaging (MRI) was used as a reference modality for flow measurement. MATERIALS AND METHODS: The proposed protocol included both the rest and stress acquisitions within a 24-min scan...
2017: PloS One
https://www.readbyqxmd.com/read/28817656/investigation-of-the-halo-artifact-in-68ga-psma-11-pet-mri
#5
Thorsten Heußer, Philipp Mann, Christopher M Rank, Martin Schäfer, Antonia Dimitrakopoulou-Strauss, Heinz-Peter Schlemmer, Boris A Hadaschik, Klaus Kopka, Peter Bachert, Marc Kachelrieß, Martin T Freitag
OBJECTIVES: Combined positron emission tomography (PET) and magnetic resonance imaging (MRI) targeting the prostate-specific membrane antigen (PSMA) with a 68Ga-labelled PSMA-analog (68Ga-PSMA-11) is discussed as a promising diagnostic method for patients with suspicion or history of prostate cancer. One potential drawback of this method are severe photopenic (halo-) artifacts surrounding the bladder and the kidneys in the scatter-corrected PET images, which have been reported to occur frequently in clinical practice...
2017: PloS One
https://www.readbyqxmd.com/read/28817605/all-trans-retinoic-acid-suppresses-malignant-characteristics-of-cd133-positive-thyroid-cancer-stem-cells-and-induces-apoptosis
#6
Dan Mei, Bin Lv, Bo Chen, Shan Xiao, Jie Jiang, Yan Xie, Ling Jiang
Recently, diagnoses of radioiodine-refractory differentiated thyroid cancer (RAI-R DTC) have become more common; prognosis is poor. It has been suggested that cancer stem cells account for radiotherapy resistance. By flow cytometry, different expression percents of CD133 and OCT4 in thyroid cancer cell lines were detected. By real-time quantitative PCR, different mRNA expression of CD133, OCT4, GLUT1, thyroglobulin (TG), thyroperoxidase (TPO) and sodium iodine symporter (NIS) was analyzed; the localization of CD133, OCT4, and NIS expression was examined using immunofluorescence confocal microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28817417/brain-processing-of-the-temporal-dimension-of-acute-pain-in-short-term-memory
#7
Mina Khoshnejad, Mathieu Roy, Kristina Martinu, Jen-I Chen, Julien Cohen-Adad, Simon Grondin, Pierre Rainville
The dynamics of noxious sensation shapes pain perception, yet the memory of the temporal dimension of pain remains almost completely unexplored. Here, brain activity during the memory of pain duration was contrasted with that associated with the memory of pain intensity using functional magnetic resonance imaging (fMRI) and a delayed-reproduction task. Participants encoded, maintained during a short delay, and reproduced (1) the 'duration' of pain (i.e. onset-to-offset), (2) the 'dynamics' of pain (i.e. evolution of pain over time), or (3) the intensity of pain (i...
July 3, 2017: Pain
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
#8
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/28817305/foot-massage-touch-and-presence-in-decreasing-anxiety-during-a-magnetic-resonance-imaging-a-feasibility-study
#9
Rajni Parmar, Barbara B Brewer, Laura A Szalacha
OBJECTIVES: The purpose of the study was to determine (1) recruitment feasibility; (2) intervention adherence; (3) intervention acceptability; and (4) the preliminary effects of touch or foot massage interventions on anxiety during a magnetic resonance imaging (MRI). DESIGN: A quasi-experimental design was used. INTERVENTION: Foot massage and touch were the intervention groups and "presence" was the control group. SETTING: The study was conducted at the Center for Neurosciences, a freestanding facility, in southern Arizona...
August 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28817270/magnetic-field-activated-sensing-of-mrna-in-living-cells
#10
Saira F Bakshi, Nataliia Guz, Andrey Zakharchenko, Han Deng, Alexei Tumanov, Craig D Woodworth, Sergiy Minko, Dmitry M Kolpashchikov, Evgeny Katz
Detection of specific mRNA in living cells has attracted significant attention in the last decade. Probes that can be easily delivered into cells and activated at the desired time can contribute to understand-ing translation, trafficking and degradation of mRNA. Here we report a new strategy termed Magnetic Field-Activated Binary De-oxyribozyme (MaBiDZ) sensor that enables both efficient delivery and temporal control of mRNA sensing by magnetic field. MaBiDZ uses two species of magnetic beads conjugated with different com-ponents of a multicomponent deoxyribozyme (DZ) sensor...
August 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28817264/structural-diversities-in-heterometallic-mn-ca-cluster-chemistry-from-the-use-of-salicylhydroxamic-acid-mn-iii-4ca2-mn-ii-iii-6ca2-mn-iii-iv-8ca-and-mn-iii-8ca2-complexes-with-relevance-to-both-high-and-low-valent-states-of-the-oxygen-evolving-complex
#11
Alysha A Alaimo, Evangelia S Koumousi, Luís Cunha-Silva, Laura J McCormick, Simon J Teat, Vassilis Psycharis, Catherine P Raptopoulou, Shreya Mukherjee, Chaoran Li, Sayak Das Gupta, Albert Escuer, George Christou, Theocharis C Stamatatos
One-pot reactions between the [Mn3O(O2CPh)6(py)x](+/0) triangular precursors and either CaBr2·xH2O or CaCl2·6H2O, in the presence of salicylhydroxamic acid (shaH2), have afforded the heterometallic complexes [Mn(III)4Ca2(O2CPh)4(shi)4(H2O)3(Me2CO)] (1) and (pyH)[Mn(II)2Mn(III)4Ca2Cl2(O2CPh)7(shi)4(py)4] (2), respectively, in good yields. Further reactions but using a more flexible synthetic scheme comprising the Mn(NO3)2·4H2O/Ca(NO3)2·4H2O and Mn(O2CPh)2·2H2O/Ca(ClO4)2·4H2O "metal blends" and shaH2, in the presence of external base NEt3, led to the new complexes (NHEt3)2[Mn(III)4Mn(IV)4Ca(OEt)2(shi)10(EtOH)2] (3) and (NHEt3)4[Mn(III)8Ca2(CO3)4(shi)8] (4), respectively...
August 17, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28817254/highly-001-textured-tetragonal-bifeo3-film-and-its-photoelectrochemical-behaviors-tuned-by-magnetic-field
#12
Haomin Xu, Yuanhua Lin, Takashi Harumoto, Ji Shi, Ce-Wen Nan
Highly (001)-textured BiFeO3 film in tetragonal phase (T-BFO) with a giant c/a ratio was firstly obtained on quartz/polycrystalline ITO substrate. Our results indicate that the polycrystalline ITO layer with small surface roughness is a critical point to control the growth of T-BFO structure. It should be ascribed to the fact that a Bi-rich phase interlayer (~5 nm) could be formed on ITO, which acted as a crystal seed layer and thus induced the growth of (001)-textured T-BFO structure. The observed weak room temperature ferromagnetism should be attributed to Fe valance change...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28817216/functional-neuroimaging-after-severe-anoxic-brain-injury-in-children-may-reveal-preserved-yet-covert-cognitive-function
#13
Adrian M Owen
A growing body of evidence has confirmed that, after severe brain injury in adults, motoric and task-dependent factors that are essential for reliable communication, frequently interfere with an accurate assessment of cognitive status. In the current study, resting state functional magnetic resonance imaging (fMRI) in children who have sustained an anoxic brain injury following a near drowning incident suggests a similar pattern; preserved cognition amidst severe motoric impairment that effectively precludes accurate clinical diagnosis at the bedside...
August 17, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28817194/prediction-and-prognosis-of-ventricular-tachycardia-recurrence-after-catheter-ablation-with-remote-magnetic-navigation-for-electrical-storm-in-patients-with-ischemic-cardiomyopathy
#14
Qi Jin, Peter Karl Jacobsen, Steen Pehrson, Xu Chen
BACKGROUND: Ventricular tachycardia (VT) recurrence after catheter ablation for electrical storm is commonly seen in patients with ischemic cardiomyopathy (ICM). HYPOTHESIS: We hypothesized that VT recurrence can be predicted and be related to the all-cause death after VT storm ablation guided by remote magnetic navigation (RMN) in patients with ICM. METHODS: A total of 54 ICM patients (87% male; mean age, 65 ± 7.1 years) presenting with VT storm undergoing acute ablation using RMN were enrolled...
August 17, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28817084/permalloy-based-thin-film-structures-magnetic-properties-and-the-giant-magnetoimpedance-effect-in-the-temperature-range-important-for-biomedical-applications
#15
Anna A Chlenova, Alexey A Moiseev, Mikhail S Derevyanko, Aleksandr V Semirov, Vladimir N Lepalovsky, Galina V Kurlyandskaya
Permalloy-based thin film structures are excellent materials for sensor applications. Temperature dependencies of the magnetic properties and giant magneto-impedance (GMI) were studied for Fe19Ni81-based multilayered structures obtained by the ion-plasma sputtering technique. Selected temperature interval of 25 °C to 50 °C corresponds to the temperature range of functionality of many devices, including magnetic biosensors. A (Cu/FeNi)₅/Cu/(Cu/FeNi)₅ multilayered structure with well-defined traverse magnetic anisotropy showed an increase in the GMI ratio for the total impedance and its real part with temperature increased...
August 17, 2017: Sensors
https://www.readbyqxmd.com/read/28816987/analysis-of-background-parenchymal-echogenicity-on-breast-ultrasound-correlation-with-mammographic-breast-density-and-background-parenchymal-enhancement-on-magnetic-resonance-imaging
#16
Kyung Hee Ko, Hae Kyoung Jung, Inwha Kim
The purpose of this study was to analyze the background parenchymal echotexture (BP echo) on breast ultrasound in detail and to evaluate the relation BP echo with menopausal status. In addition, we correlated BP echo with mammographic breast density (MGD) and background parenchymal enhancement (BPE) on magnetic resonance imaging (MRI).The institutional review board of our hospital approved this retrospective study, and the requirement of informed consent was waived. We studied 138 women (mean age 51.6 years, range from 26 to 79 years) with newly diagnosed invasive breast cancer, who had performed preoperative mammography, ultrasound, and MR from June 2013 to June 2015...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816961/estimating-of-hepatic-fat-amount-using-mri-proton-density-fat-fraction-in-a-real-practice-setting
#17
Hyeyoung Lee, Dae Won Jun, Bo-Kyeong Kang, Eunwoo Nam, Misoo Chang, Mimi Kim, Soonyoung Song, Byung Chul Yoon, Hang Lak Lee, Oh Young Lee, Ho Soon Choi, Kang Nyeong Lee
The recently developed magnetic resonance imaging (MRI) proton density fat fraction (PDFF) allows measurement of the fat in all segments of hepatic tissue. However, it is time consuming and inconvenient to measure each segment repeatedly. Moreover, volume of each segment also should be adjusted with arithmetic mean of the selected segments when total amount of liver fat is estimated. Therefore, we try to develop a clinically-relevant and applicable method of estimating hepatic fat in PDFF image.A total of 164 adults were enrolled...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816953/peritumoral-decreased-uptake-area-of-gadoxetic-acid-enhanced-magnetic-resonance-imaging-and-tumor-recurrence-after-surgical-resection-in-hepatocellular-carcinoma-a-strobe-compliant-article
#18
Seung Kak Shin, Yun Soo Kim, Young Sup Shim, Seung Joon Choi, So Hyun Park, Dong Hae Jung, Oh Sang Kwon, Duck Joo Choi, Ju Hyun Kim
Recently, it has been suggested that peritumoral decreased uptake area (PDUA) in the hepatobiliary phase (HBP) of gadoxetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) was associated with vascular invasion in hepatocellular carcinoma (HCC). We aimed to investigate correlations between microvascular invasion and PDUA, and elucidate the predictability of PDUA for tumor recurrence after resection.We retrospectively analyzed clinicopathological and radiological data from 126 consecutive patients with single HCC ≤5 cm without macrovascular invasion who underwent preoperative Gd-EOB-DTPA-enhanced MRI and surgical resection...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816948/medial-medullary-infarction-caused-by-antineutrophil-cytoplasmic-antibody-related-vasculitis-case-report-and-review-of-the-literature
#19
Kumi Yanagiha, Kazuhiro Ishii, Tomoyuki Ueno, Aiki Marushima, Akira Tamaoka
RATIONALE: Medial medullary infarction accounts for less than 1% of brain infarctions, and medial medullary infarctions is very rarely caused by antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis. PATIENT CONCERNS: We report the case of a 76-year-old man at low risk of arteriosclerosis who presented with disorders on the left side including gaze-evoked nystagmus, paralysis of the extremities, pyramidal signs, sensory disturbance, and dysesthesia. Brain magnetic resonance imaging also showed right medial medullary infarction...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816947/kinematic-analysis-of-the-relationship-between-modic-changes-and-sagittal-balance-parameters-in-the-cervical-spine
#20
Zikun Ma, Peng Liu, Jingpei Liu, Jianhui Mou, Zhaolin Wang, Dong Sun, Jie Cheng, Dengwei Zhang, Jianlin Xiao
The aim of this study is to investigate the relationship between the Modic changes (MCs) and sagittal parameters of the cervical spine.We conducted a retrospective review of 100 outpatients with magnetic resonance imaging (MRI) scans of the cervical spine (50 male and 50 female). MRI parameters were measured, including neck tilt, T1 slope (T1 ), thoracic inlet angle (TIA), and cervical lordosis (CL: Cobb C2-7). Patients were divided into 4 groups according to the presence or absence of MC and T1s, respectively: MC(+) and MC(-) groups, as well as H-T1s (T1s ≥25°) and L-T1s subgroups (T1s <25°)...
August 2017: Medicine (Baltimore)
keyword
keyword
45238
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"