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J D Thiessen, E Shams, G Stortz, G Schellenberg, D Bishop, M S Khan, P Kozlowski, F Retière, V Sossi, C J Thompson, A L Goertzen
A full-ring PET insert consisting of 16 PET detector modules was designed and constructed to fit within the 114 mm diameter gradient bore of a Bruker 7 T MRI. The individual detector modules contain two silicon photomultiplier (SiPM) arrays, dual-layer offset LYSO crystal arrays, and high-definition multimedia interface (HDMI) cables for both signal and power transmission. Several different RF shielding configurations were assessed prior to construction of a fully assembled PET insert using a combination of carbon fibre and copper foil for RF shielding...
November 21, 2016: Physics in Medicine and Biology
Jaqueline C Avila, Yong-Fang Kuo, Ana M Rodriguez, Rebeca Wong, Sapna Kaul
PURPOSE: Examine preventive services utilization among female survivors of adolescent and young adult (AYA) cancer compared with women without cancer in the USA. METHODS: A total of 1017 women diagnosed with cancer at AYA ages (15-39 years) who were at least 5 years since diagnosis were identified from 2008 to 2012 Medical Expenditure Panel Surveys. A comparison group without cancer was matched on age and other characteristics. General preventive services included dental, medical, blood pressure, and cholesterol checkups, and flu shots in the previous year...
October 24, 2016: Journal of Cancer Survivorship: Research and Practice
Alexis Klengel, Patrick Stumpp, Steffen Klengel, Ina Böttger, Nadja Rönisch, Thomas Kahn
Purpose To compare single-shot echo-planar diffusion-weighted imaging-derived apparent diffusion coefficient (ADC) maps with fat-saturated (FS) proton density (PD)-weighted turbo spin-echo (TSE) imaging in the detection of bone marrow lesions (BMLs) after knee trauma. Materials and Methods Institutional review board approval was obtained from Leipzig University. Written informed consent was waived. Three radiologists retrospectively re-examined 97 consecutive patients with reported knee trauma who underwent 1...
October 24, 2016: Radiology
Bertram J Wilm, Christoph Barmet, Simon Gross, Lars Kasper, S Johanna Vannesjo, Max Haeberlin, Benjamin E Dietrich, David O Brunner, Thomas Schmid, Klaas P Pruessmann
PURPOSE: The purpose of this work was to improve the quality of single-shot spiral MRI and demonstrate its application for diffusion-weighted imaging. METHODS: Image formation is based on an expanded encoding model that accounts for dynamic magnetic fields up to third order in space, nonuniform static B0 , and coil sensitivity encoding. The encoding model is determined by B0 mapping, sensitivity mapping, and concurrent field monitoring. Reconstruction is performed by iterative inversion of the expanded signal equations...
October 21, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
Zhe Zhang, Bing Zhang, Ming Li, Xue Liang, Xiaodong Chen, Renyuan Liu, Xin Zhang, Hua Guo
PURPOSE: To report a diffusion imaging technique insensitive to off-resonance artifacts and motion-induced ghost artifacts using mulitshot Cartesian turbo spin-echo (TSE) acquisition and iterative POCS-based reconstruction of multiplexed sensitivity encoded magnetic resonance imaging (MRI) (POCSMUSE) for phase correction. MATERIALS AND METHODS: Phase insensitive diffusion preparation was used to deal with the violation of the Carr-Purcell-Meiboom-Gill (CPMG) conditions of TSE diffusion-weighted imaging (DWI), followed by a mulitshot Cartesian TSE readout for data acquisition...
October 20, 2016: Journal of Magnetic Resonance Imaging: JMRI
Bhavana Sosale, Aravind Sosale, Arpandev Bhattacharyya
INTRODUCTION: Dapagliflozin, a sodium glucose co-transporter 2 (SGLT2) inhibitor, is a promising drug approved for the treatment of type 2 diabetes mellitus (T2DM). However, its cost is an obstacle for use in developing countries like India. Thus, we aimed to analyse the impact on the cost of insulin therapy after adding dapagliflozin for patients using insulin in real-world clinical practice. METHODS: This retrospective chart review study included patients with uncontrolled T2DM previously on maximum doses of OADs and insulin therapy, initiated on dapagliflozin...
October 19, 2016: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
Gang Wu, Jun Yang, Tianjing Zhang, John N Morelli, Shivraman Giri, Xiaoming Li, Wenlin Tang
BACKGROUND: The high incidence of renal insufficiency in patients with Peripheral Arterial Disease raises the concern for nephrogenic systemic fibrosis (NSF) with respect to contrast enhanced MRA. The risk of NSF is eliminated with non-contrast enhanced magnetic resonance angiography. The purpose of the current study is to compare image quality and diagnostic performance of non-contrast enhanced Quiescent Interval Single Shot (QISS) magnetic resonance angiography at 3 T versus CT angiography for evaluation of lower extremity Peripheral Arterial Disease (PAD)...
October 20, 2016: Journal of Cardiovascular Magnetic Resonance
V Sterzik, B P Kneubuehl, M Bohnert, F Riva, M Glardon
In medico-legal literature, only a small number of publications deal with lethal injuries caused by shots with modified guns. This might lead to the conclusion that such cases are extremely rare. However, there are cases again and yet again. During the investigation process, the modified gun is of particular importance since it can show an unusual ballistic behaviour. The present paper reports on a suicide of a 60-year-old man, committed with a modified revolver and a lead bullet. The man had a single gunshot wound with entrance at the right temporal bone...
October 15, 2016: International Journal of Legal Medicine
E S Tikhonov, D V Shovkun, M Snelder, M P Stehno, Y Huang, M S Golden, A A Golubov, A Brinkman, V S Khrapai
We investigate transport and shot noise in lateral normal-metal-3D topological-insulator-superconductor contacts, where the 3D topological insulator (TI) is based on Bi. In the normal state, the devices are in the elastic diffusive transport regime, as demonstrated by a nearly universal value of the shot noise Fano factor F_{N}≈1/3 in magnetic field and in a reference normal-metal contact. In the absence of magnetic field, we identify the Andreev reflection (AR) regime, which gives rise to the effective charge doubling in shot noise measurements...
September 30, 2016: Physical Review Letters
Jason P Stopyra, William P Bozeman, David W Callaway, James Winslow, Henderson D McGinnis, Justin Sempsrott, Lisa Evans-Taylor, Roy L Alson
There is some controversy about whether ballistic protective equipment (body armor) is required for medical responders who may be called to respond to active shooter mass casualty incidents. In this article, we describe the ongoing evolution of recommendations to optimize medical care to injured victims at such an incident. We propose that body armor is not mandatory for medical responders participating in a rapid-response capacity, in keeping with the Hartford Consensus and Arlington Rescue Task Force models...
2016: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
Sinead T J McDonagh, Anni Vanhatalo, Jonathan Fulford, Lee J Wylie, Stephen J Bailey, Andrew M Jones
We tested the hypothesis that dietary nitrate-rich beetroot juice (BR) supplementation could partially offset deteriorations in O(2) transport and utilization, and exercise tolerance, after blood donation. Twenty-two healthy volunteers performed moderate-intensity and ramp incremental cycle exercise tests prior to and following the withdrawal of ~450 mL of whole blood. Before donation, all subjects consumed 7 x 70 mL of nitrate-depleted beetroot juice shots (PL) in the 48 h preceding the exercise tests. During the 48 h after blood donation, subjects consumed 7 shots of either BR (each containing 6...
September 30, 2016: American Journal of Physiology. Heart and Circulatory Physiology
L Baverel, T Cucurulo, C Lutz, Colombet, J Cournapeau, F Dalmay, N Lefevre, R Letartre, J-F Potel, X Roussignol, L Surdeau, E Servien
INTRODUCTION: More and more anterior cruciate ligament (ACL) reconstructions are being performed as outpatient surgery in France, because of economic considerations. Postoperative pain is the most common reason for delayed discharge that could require hospitalization, and the main reason for unanticipated hospital admission. The purpose of this study was to define the best anesthesia and analgesia methods for ACL reconstruction. MATERIALS AND METHODS: This was a prospective, multicenter, comparative study performed between January 2014 and April 2015...
September 26, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
Martin Bergert, Tobias Lendenmann, Manuel Zündel, Alexander E Ehret, Daniele Panozzo, Patrizia Richner, David K Kim, Stephan J P Kress, David J Norris, Olga Sorkine-Hornung, Edoardo Mazza, Dimos Poulikakos, Aldo Ferrari
The mechanical wiring between cells and their surroundings is fundamental to the regulation of complex biological processes during tissue development, repair or pathology. Traction force microscopy (TFM) enables determination of the actuating forces. Despite progress, important limitations with intrusion effects in low resolution 2D pillar-based methods or disruptive intermediate steps of cell removal and substrate relaxation in high-resolution continuum TFM methods need to be overcome. Here we introduce a novel method allowing a one-shot (live) acquisition of continuous in- and out-of-plane traction fields with high sensitivity...
2016: Nature Communications
P Bochyński, M Kuliczkowski, A Karpiewska, M Turkiewicz, T Dobosz
Hunting shot are 1.2-10 mm diameter balls, usually made of lead alloys, forming a cluster projectile used in smoothbore hunting shotguns. Shot may also be used in pistol and revolver ammunition, in which it can constitute structural element of the projectile. Shot pellets may also be made of other materials and have other shapes. The aim of this paper is to aggregate information on the topic available from a number of different sources. It is hoped that such information will be useful for forensic ballistics experts...
2016: Archiwum Medycyny Sa̧dowej i Kryminologii
Aaron S Chou, Richard Gustafson, Craig Hogan, Brittany Kamai, Ohkyung Kwon, Robert Lanza, Lee McCuller, Stephan S Meyer, Jonathan Richardson, Chris Stoughton, Raymond Tomlin, Samuel Waldman, Rainer Weiss
Measurements are reported of the cross-correlation of spectra of differential position signals from the Fermilab Holometer, a pair of colocated 39 m long, high power Michelson interferometers with flat broadband frequency response in the MHz range. The instrument obtains sensitivity to high frequency correlated signals far exceeding any previous measurement in a broad frequency band extending beyond the 3.8 MHz inverse light-crossing time of the apparatus. The dominant but uncorrelated shot noise is averaged down over 2×10^{8} independent spectral measurements with 381 Hz frequency resolution to obtain 2...
September 9, 2016: Physical Review Letters
Xiaojun Chang, Yao-Liang Yu, Yi Yang, Eric P Xing
Pooling plays an important role in generating a discriminative video representation. In this paper, we propose a new semantic pooling approach for challenging event analysis tasks (e.g. event detection, recognition, and recounting) in long untrimmed Internet videos, especially when only a few shots/segments are relevant to the event of interest while many other shots are irrelevant or even misleading. The commonly adopted pooling strategies aggregate the shots indifferently in one way or another, resulting in a great loss of information...
September 13, 2016: IEEE Transactions on Pattern Analysis and Machine Intelligence
Jerzy F Żarski, Michał Skibniewski, Ewa Skibniewska, Tadeusz P Żarski, Teresa Majdecka
The study aimed at determining the degree of mercury contamination of mallards, game waterbirds migrating from the regions of the unknown degree of contamination and establishing whether the consumption of their meat comprises a hazard to human health in view of the binding norms concerning the mercury content in food products. The investigations were carried out on 30 mallards shot during the duck shooting season in which mercury concentrations in the muscles, liver, and kidneys were determined using the cold vapor atomic absorption spectrometry (CV-AAS) method...
September 21, 2016: Biological Trace Element Research
Ernesto Suárez-Cadenas, Javier Courel-Ibáñez, David Cárdenas, José C Perales
We take the first steps towards a shot selection quality model in basketball that incorporates decisional cues that might be predictive, not only of proximal results (e.g., scoring), but also of distal results (e.g., winning/losing the match). 2976 jump-shots from 50 Euroleague matches were sampled, following systematic observation guidelines. The decisional cues under scrutiny were shooting opposition, distance and lateral angle, disposition to offensive rebound and disposition to defensive balance at the moment of shooting...
2016: Spanish Journal of Psychology
Tsukasa Kojima, Hidetake Yabuuchi, Hiroshi Narita, Seiji Kumazawa, Yuzo Yamasaki, Yuki Yano, Noriyuki Sakai, Yoichi Kurihara, Kiyoshi Hisada, Masafumi Masaki, Hiroshi Kimura
OBJECTIVE: To investigate the efficacy of the radial acquisition regime (RADAR) for acquiring head and neck MR images. METHODS: 15 healthy volunteers underwent imaging with 4 sequences [fast spin echo T2 weighted imaging (FSE-T2WI), RADAR T2 weighted imaging (RADAR-T2WI), single-shot echo planar imaging diffusion-weighted imaging (SS-EPI-DWI) and RADAR diffusion-weighted imaging (RADAR-DWI)]. Both standard images and images during periodic mouth motion were acquired...
November 2016: British Journal of Radiology
Alok Srivastava, Sanjeet Singh, Ishwar Ram Dhayal, Priyanka Rai
OBJECTIVE: To compare the one-shot dilation (OSD) technique with three other dilation techniques namely telescopic Alken, fascial Amplatz and balloon dilation (BD) in terms of safety efficacy and cost effectiveness. METHODS: During a 3½ year enrollment period, 480 patients who required PCNL surgery were equally randomized into four groups. All the cases were assessed preoperatively, intraoperatively as well as postoperatively till a period of 3 months. Access time, X-ray exposure time, hemoglobin drop, complications, success rate, etc...
September 10, 2016: World Journal of Urology
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