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https://www.readbyqxmd.com/read/29685538/role-of-propeller-dwi-of-the-prostate-in-reducing-distortion-and-artefact-from-total-hip-replacement-metalwork
#1
Marcin Czarniecki, Iztok Caglic, James T Grist, Andrew B Gill, Kamil Lorenc, Rhys A Slough, Andrew N Priest, Tristan Barrett
OBJECTIVE: To compare image quality, artefact, and distortion in standard echo-planar imaging (EPI) with periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) for prostate magnetic resonance imaging (MRI) diffusion-weighted imaging (DWI) in patients with previous total hip replacement (THR). METHODS: 21 male subjects with a clinical suspicion for, or known prostate cancer and previous THR were scanned at 1.5 T using a phased-array body coil...
May 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29680003/the-comparative-effectiveness-of-quadratus-lumborum-blocks-and-paravertebral-blocks-in-radical-cystectomy-patients
#2
Austin J Lee, Jonathan G Yabes, Nathan Hale, Ronald L Hrebinko, Jeffrey R Gingrich, Jodi K Maranchie, Mina M Fam, Robert M Turner I I, Benjamin J Davies, Bruce Ben-David, Bruce L Jacobs
INTRODUCTION: Multimodal analgesia is an effective way to control pain and limit opioid use after surgery. The quadratus lumborum block and paravertebral block are two regional anesthesia techniques that leverage multimodal analgesia to improve postoperative pain control. We sought to compare the efficacy of these blocks for pain management following radical cystectomy. MATERIALS AND METHODS: We performed a retrospective review of radical cystectomy patients who received bilateral continuous paravertebral blocks (n = 125) or bilateral single shot quadratus lumborum blocks (n = 50) between 2014-2016...
April 2018: Canadian Journal of Urology
https://www.readbyqxmd.com/read/29679185/comparing-learning-curves-of-two-established-single-shot-devices-for-ablation-of-atrial-fibrillation
#3
Patrick Leitz, G Mönnig, F Güner, D G Dechering, K Wasmer, F Reinke, Philipp S Lange, L Eckardt, G Frommeyer
PURPOSE: We compared the contour of learning curves of two "single-shot" devices used for pulmonary vein isolation (PVI) for safety and procedural data. METHODS: We performed a retrospective analysis comparing the first 60 PVI performed at our center using a pulmonary vein ablation catheter (PVAC) array (39 male, mean age 57 years, 42 paroxysmal AF) to the first 60 first PVI using the Cryoballoon (44 male, mean age 59 years, 22 paroxysmal AF). Both groups were further divided into tertiles, where T1 regroups the first 20 ablations, T2 the following 20, and T3 the last 20 ablations...
April 20, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29678540/quantitative-diffusion-mri-using-reduced-field-of-view-and-multi-shot-acquisition-techniques-validation-in-phantoms-and-prostate-imaging
#4
Yuxin Zhang, James Holmes, Iñaki Rabanillo, Arnaud Guidon, Shane Wells, Diego Hernando
PURPOSE: To evaluate the reproducibility of quantitative diffusion measurements obtained with reduced Field of View (rFOV) and Multi-shot EPI (msEPI) acquisitions, using single-shot EPI (ssEPI) as a reference. METHODS: Diffusion phantom experiments, and prostate diffusion-weighted imaging in healthy volunteers and patients with known or suspected prostate cancer were performed across the three different sequences. Quantitative diffusion measurements of apparent diffusion coefficient, and diffusion kurtosis parameters (healthy volunteers), were obtained and compared across diffusion sequences (rFOV, msEPI, and ssEPI)...
April 17, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29676703/effect-of-intraoperative-single-shot-application-of-vancomycin-in-liver-transplant-recipients-on-postoperative-infections-with-enterococcus-faecium-and-enterococcus-faecalis
#5
Christian Siebers, Johannes Kinzinger, Ludwig C Hinske, Andreas Bauer, Patrick Scheiermann, Michael Zoller, Markus Guba, Martin Angele, Sebastian Pratschke, Thomas Weig
OBJECTIVES: Infections are major causes of morbidity and mortality in the early postoperative period after liver transplant. We observed a high rate of enterococcal infections at our center. Therefore, we added an intraoperative single shot of vancomycin to the standard regimen of meropenem given over 5 days. The aim of this study was to determine the prevalence of both Enterococcus faecium and Enterococcus faecalis infections during the first 28 days after surgery depending on the type of antibiotic prophylaxis and their implications on mortality and morbidity...
April 20, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29667639/-a-change-in-the-direction-of-the-wound-channel-in-the-case-of-the-combined-injury-inflicted-by-a-shot-from-the-9-0-mm-makarov-pistol
#6
A A Gusarov, I Yu Makarov, V A Fetisov
The authors present an example from the expert practice demonstrating the influence of such factors as the properties of the ammunition fired from a weapon (including its weight, size, shape, and speed) as well as the anatomical features of the body tissues being affected on the mechanism of formation of a gunshot wound in the human body. The investigation of the suicide of subject P. has demonstrated the penetrating bullet wound of the neck and the head. The entrance wound was located at the anterior neck surface and the exit one in the left half of the occipital region...
2018: Sudebno-meditsinskaia Ekspertiza
https://www.readbyqxmd.com/read/29663178/validation-of-contrast-enhanced-time-resolved-magnetic-resonance-angiography-in-pre-ablation-planning-in-patients-with-atrial-fibrillation-comparison-with-traditional-technique
#7
Tarek Zghaib, Adeel Shahid, Chiara Pozzessere, Kristin K Porter, Linda C Chu, John Eng, Hugh Calkins, Ihab R Kamel, Saman Nazarian, Stefan L Zimmerman
Bolus timing is critical to optimal magnetic resonance angiography (MRA) acquisitions but can be challenging in some patients. Our purpose was to evaluate whether contrast-enhanced time-resolved magnetic resonance angiography (TR-MRA), a dynamic multiphase sequence that does not rely on bolus timing, is a viable alternative method to conventional 3D fast-long angle shot contrast-enhanced magnetic resonance angiography (CE-MRA). Coronal subtracted conventional CE-MRA images in 50 consecutive patients presenting for pre-atrial fibrillation ablation pulmonary venous (PV) mapping were compared with 50 TR-MRA images performed in 50 subsequent patients...
April 16, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29657896/a-comparison-of-the-convolution-and-tmr10-treatment-planning-algorithms-for-gamma-knife-%C3%A2-radiosurgery
#8
Peter Fallows, Gavin Wright, Natalie Harrold, Peter Bownes
Aims: To compare the accuracies of the convolution and TMR10 Gamma Knife treatment planning algorithms, and assess the impact upon clinical practice of implementing convolution-based treatment planning. Methods: Doses calculated by both algorithms were compared against ionisation chamber measurements in homogeneous and heterogeneous phantoms. Relative dose distributions calculated by both algorithms were compared against film-derived 2D isodose plots in a heterogeneous phantom, with distance-to-agreement (DTA) measured at the 80%, 50% and 20% isodose levels...
2018: Journal of Radiosurgery and SBRT
https://www.readbyqxmd.com/read/29656440/in-plane-superresolution-mri-with-phaseless-sub-pixel-encoding
#9
Franciszek Hennel, Rui Tian, Maria Engel, Klaas P Pruessmann
PURPOSE: Acquisition of high-resolution imaging data using multiple excitations without the sensitivity to fluctuations of the transverse magnetization phase, which is a major problem of multi-shot MRI. THEORY AND METHODS: The concept of superresolution MRI based on microscopic tagging is analyzed using an analogy with the optical method of structured illumination. Sinusoidal tagging is shown to provide subpixel resolution by mixing of neighboring spatial frequency (k-space) bands...
April 15, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29655814/safety-and-efficacy-of-arterial-closure-devices-in-an-office-based-angiosuite
#10
Lauren E Jones, Keun-Ho Yang, Robert W Feldtman, Pablo V Uceda, Craig A Ferrara, Joseph M Caruso, Jasmine L Richmond, Samuel S Ahn
BACKGROUND: We aimed to compare the safety and efficacy of 5 arterial closure devices in an outpatient endovascular surgery center. MATERIALS AND METHODS: We retrospectively reviewed all cases using femoral arterial access performed between January 2012 and December 2013. Five different arterial closure devices (AngioSeal, Perclose, StarClose, ExoSeal, and Mynx) were used by 7 endovascular surgeons. All femoral arteries were accessed with 6F sheaths under ultrasound guidance...
April 12, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29644914/on-using-wearable-tri-axial-accelerometers-to-examine-the-striking-phase-kinematics-of-expert-specialist-drag-flickers-on-field
#11
Simon M Rosalie, Weng I Tang, Andrew S McIntyre, Stacey Stockman, Craig King, Cameron Watkins, Catherine Yvette Wild, Leo Ng
Analysing player kinematics during a match using "gold-standard" 3D video-based motion analysis techniques is a difficult prospect indeed. The development of small, wireless, wearable sensors offers the potential to reduce the challenges of measuring kinematics during match-play without hindering performance. The present study examined the viability of using wireless tri-axial accelerometers to examine whether key performance measures of drag flicks executed by expert specialist drag-flickers are predicted by the kinematics of the striking phase...
April 12, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29630034/effective-dose-of-intravenous-dexmedetomidine-to-prolong-the-analgesic-duration-of-interscalene-brachial-plexus-block-a-single-center-prospective-double-blind-randomized-controlled-trial
#12
RyungA Kang, Ji Seon Jeong, Jae Chul Yoo, Ju Hyun Lee, Soo Joo Choi, Mi Sook Gwak, Tae Soo Hahm, Jin Huh, Justin Sangwook Ko
BACKGROUND AND OBJECTIVES: Intravenous (IV) dexmedetomidine (DEX) is reported to prolong the analgesic duration after single-shot interscalene brachial plexus block (ISBPB). However, the effective analgesic dose of IV DEX remains undetermined. Therefore, we aimed to elucidate the clinically relevant dose of IV DEX to prolong the analgesic duration of ISBPB. METHODS: Seventy-two patients scheduled for arthroscopic shoulder surgery received ISBPB with 15 mL of 0.5% ropivacaine with 1:200,000 epinephrine and were randomly assigned to 1 of 4 groups (n = 18, each): (1) IV normal saline (control), (2) IV DEX 0...
April 6, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29630032/perineural-versus-systemic-dexamethasone-in-front-foot-surgery-under-ankle-block-a-randomized-double-blind-study
#13
Philippe Marty, Olivier Rontes, Clément Chassery, Corine Vuillaume, Bertrand Basset, Mehdi Merouani, Constance Marquis, Benoit Bataille, Martine Chaubard, Marie Claude Mailles, Fabrice Ferré, Alain Delbos
BACKGROUND AND OBJECTIVES: Among the different adjuvants, dexamethasone is one of the most accepted to prolong the effect of local anesthetics. This study aims to determine the superiority of perineural over systemic dexamethasone administration after a single-shot ankle block in metatarsal osteotomy. METHODS: We performed a prospective, double-blind, randomized study. A total of 100 patients presenting for metatarsal osteotomy with an ankle block were randomized into 2 groups: 30 mL ropivacaine 0...
April 6, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29628905/polar-coordinate-analysis-of-relationships-with-teammates-areas-of-the-pitch-and-dynamic-play-in-soccer-a-study-of-xabi-alonso
#14
Rubén Maneiro Dios, Mario Amatria Jiménez
Research in soccer has traditionally focused on very specific aspects of the game, such as technical and physiological aspects, and has largely ignored important issues such as tactical performance and the role of individual players within the team. The aim of this study was to study the different relationships that Xabi Alonso, one of the world's best midfielders, establishes with his teammates during offensive play, and to investigate his connections with the pitch in terms of where his direct interventions started and finished, his use of technical actions, his involvement in set plays and interceptions, and his relationship with shots at goal...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29626187/control-of-laser-plasma-accelerated-electrons-for-light-sources
#15
T André, I A Andriyash, A Loulergue, M Labat, E Roussel, A Ghaith, M Khojoyan, C Thaury, M Valléau, F Briquez, F Marteau, K Tavakoli, P N'Gotta, Y Dietrich, G Lambert, V Malka, C Benabderrahmane, J Vétéran, L Chapuis, T El Ajjouri, M Sebdaoui, N Hubert, O Marcouillé, P Berteaud, N Leclercq, M El Ajjouri, P Rommeluère, F Bouvet, J -P Duval, C Kitegi, F Blache, B Mahieu, S Corde, J Gautier, K Ta Phuoc, J P Goddet, A Lestrade, C Herbeaux, C Évain, C Szwaj, S Bielawski, A Tafzi, P Rousseau, S Smartsev, F Polack, D Dennetière, C Bourassin-Bouchet, C De Oliveira, M-E Couprie
With gigaelectron-volts per centimetre energy gains and femtosecond electron beams, laser wakefield acceleration (LWFA) is a promising candidate for applications, such as ultrafast electron diffraction, multistaged colliders and radiation sources (betatron, compton, undulator, free electron laser). However, for some of these applications, the beam performance, for example, energy spread, divergence and shot-to-shot fluctuations, need a drastic improvement. Here, we show that, using a dedicated transport line, we can mitigate these initial weaknesses...
April 6, 2018: Nature Communications
https://www.readbyqxmd.com/read/29624542/effects-of-combined-lower-thoracic-epidural-general-anesthesia-on-pain-control-in-patients-undergoing-elective-lumbar-spine-surgery-a-randomized-controlled-trial
#16
Marvin Thepsoparn, Jariya Sereeyotin, Patt Pannangpetch
STUDY DESIGN: Randomized controlled trial. OBJECTIVE: Our objective was to compare postoperative pain relief and operating field condition of single shot low thoracic epidural anesthesia combined with general anesthesia versus general anesthesia alone. SUMMARY OF BACKGROUND DATA: Prior studies have suggested that continuous epidural analgesia provides better postoperative pain relief and less intraoperative blood loss, but with the risk of the epidural catheter contaminating the surgical field...
April 5, 2018: Spine
https://www.readbyqxmd.com/read/29617988/myocardial-native-t1-and-extracellular-volume-with-healthy-ageing-and-gender
#17
Stefania Rosmini, Heerajnarain Bulluck, Gabriella Captur, Thomas A Treibel, Amna Abdel-Gadir, Anish N Bhuva, Veronica Culotta, Ahmed Merghani, Marianna Fontana, Viviana Maestrini, Anna S Herrey, Kelvin Chow, Richard B Thompson, Stefan K Piechnik, Peter Kellman, Charlotte Manisty, James C Moon
Aims: To determine how native myocardial T1 and extracellular volume (ECV) change with age, both to understand aging and to inform on normal reference ranges. Methods and results: Ninety-four healthy volunteers with no a history or symptoms of cardiovascular disease or diabetes underwent cardiovascular magnetic resonance at 1.5 T. Mid-ventricular short axis native and post-contrast T1 maps by Shortened MOdified Look-Locker Inversion-recovery (ShMOLLI), MOdified Look-Locker Inversion Recovery (MOLLI) [pre-contrast: 5s(3s)3s, post-contrast: 4s(1s)3s(1s)2s] and saturation recovery single-shot acquisition (SASHA) were acquired and ECV by these three techniques were derived for the mid anteroseptum...
March 30, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29616904/does-a-relationship-exist-between-lower-body-power-and-balance-scores-among-older-adults
#18
Andrew Shim, Brady Harr, Mike Waller
CONTEXT: Falls are the second-leading cause of unintentional injury and death worldwide. OBJECTIVE: To determine if a relationship exists between lower body power scores and center of pressure (CoP) and limits of stability (LoS) scores. METHODS: A one-shot case study design (n = 13) was selected for the investigation. All participants were assessed stability scores via computerized posturography to determine CoP and LoS balance scores. Participants stood on a perturbed surface with their eyes open and closed...
March 12, 2018: Permanente Journal
https://www.readbyqxmd.com/read/29614090/intra-abdominal-pressure-vertebral-column-length-and-spread-of-spinal-anesthesia-in-parturients-undergoing-cesarean-section-an-observational-study
#19
Ting-Ting Ni, Ying Zhou, An-Cui Yong, Lu Wang, Qing-He Zhou
BACKGROUND: In parturients with increased physiologically intra-abdominal pressure (IAP) and a short stature, a greater cephalad spread of spinal anesthesia is often observed after a fixed amount of plain bupivacaine is administered. Therefore, we designed this prospective study to test whether IAP and vertebral column length (VCL) were predictors of spinal spread in parturients undergoing a cesarean section. METHODS: A total of 113 parturients, all undergoing elective cesarean sections with single-shot spinal anesthesia, were enrolled...
2018: PloS One
https://www.readbyqxmd.com/read/29605043/an-educational-intervention-to-improve-human-papilloma-virus-hpv-and-cervical-cancer-knowledge-among-african-american-college-students
#20
Jeanine N Staples, Melissa S Wong, B J Rimel
OBJECTIVES: Misinformation and lack of formal education about cervical cancer may contribute to disparities. The objective of this study was to assess the role of an educational intervention in improving knowledge about Human papilloma virus (HPV) and cervical cancer among African American female college students. METHODS: We completed a total of 5 lectures at 4 different historically Black Colleges in North Carolina, Virginia, and West Virginia. Each 60min lecture reviewed basic female anatomy, HPV pathogenesis, cervical dysplasia, cervical cancer, HPV vaccination and cervical cancer screening...
April 2018: Gynecologic Oncology
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