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https://www.readbyqxmd.com/read/30540577/precise-anesthesia-in-thoracoscopic-operations
#1
Ming-Hui Hung, Jin-Shing Chen, Ya-Jung Cheng
PURPOSE OF REVIEW: The current review focuses on precise anesthesia for video-assisted thoracoscopic surgery (VATS) with the goal of enhanced recovery. RECENT FINDINGS: VATS has become an established and widely used minimally invasive approach with broad implementation on a variety of thoracic operations. In the current environment of enhanced recovery protocols and cost containment, minimally invasive VATS operations suggest adoption of individualized tailored, precise anesthesia...
December 11, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/30488107/double-inversion-recovery-with-synthetic-magnetic-resonance-a-pilot-study-for-assessing-synovitis-of-the-knee-joint-compared-to-contrast-enhanced-magnetic-resonance-imaging
#2
Jisook Yi, Young Han Lee, Ho-Taek Song, Jin-Suck Suh
OBJECTIVES: To investigate the agreement between double-inversion recovery (DIR) with synthetic magnetic resonance imaging (MRI) and T1-weighted contrast-enhanced (CE)-MRI for the assessment of knee synovitis. METHODS: T1-weighted CE-MRI and synthetic MRI of 30 patients were compared. Synthetic DIR image reconstruction was performed with two inversion times (280-330 ms and 2800-2900 ms). Subjective image quality, visibility of synovium, detection of synovitis, and total synovitis score in the knee joint were evaluated on both MR images...
November 28, 2018: European Radiology
https://www.readbyqxmd.com/read/30098531/fabrication-of-a-loose-nanofiltration-candidate-from-polyacrylonitrile-graphene-oxide-hybrid-membrane-via-thermally-induced-phase-separation
#3
Zhongyong Qiu, Xiaofei Ji, Chunju He
It is still a challenge to design and fabricate a robust nanoporous membrane in large scale and of fundamental importance for practical application. Here, a robust three/two-dimensional polyacrylonitrile/graphene oxide (PAN/GO) homogeneous nanoporous membrane is fabricated in large scale via thermally induced phase separation method, which guarantees the membrane with high mechanical strength and selective separation properties. Differing from conventional nanofiltration (NF) membrane with high rejection to both salt and dye, the resulting hybrid membrane is relative loose, which shows outstanding performances, i...
October 15, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29744219/the-key-questions-in-rehabilitation-in-thoracic-surgery
#4
REVIEW
Kajan Mahendran, Babu Naidu
Enhancing the recovery of patients undergoing Thoracic Surgery is the raison d'être of a pulmonary rehabilitation (PR) process. Benefits of a PR program have been shown to include reduced postoperative complications, hospital length of stay (LOS) and improved exercise and lung function parameters. Identifying which groups of patients benefit most and the constituency of the perfect PR program is subject to ongoing research. Providing PR to patients in a manner acceptable to their lifestyle and disease timeline within economic limitations is the challenge...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29621113/a-repeated-power-training-enhances-fatigue-resistance-while-reducing-intraset-fluctuations
#5
Oliver Gonzalo-Skok, Julio Tous-Fajardo, Gerard Moras, José Luis Arjol-Serrano, Alberto Mendez-Villanueva
Oliver, GS, Julio, TF, Moras, G, José Luis, AS, and Alberto, MV. A repeated power training enhances fatigue resistance while reducing intraset fluctuations. J Strength Cond Res XX(X): 000-000, 2018-The present study analyzed the effects of adding an upper-body repeated power ability (RPA) training to habitual strength training sessions. Twenty young elite male basketball players were randomly allocated into a control group (CON, n = 10) or repeated power group (RPG, n = 10) and evaluated by 1 repetition maximum (1RM), incremental load, and RPA tests in the bench press exercise before and after a 7-week period and a 4-week cessation period...
April 4, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29564560/shape-memory-response-of-porous-niti-shape-memory-alloys-fabricated-by-selective-laser-melting
#6
Soheil Saedi, Sayed E Saghaian, Ahmadreza Jahadakbar, Narges Shayesteh Moghaddam, Mohsen Taheri Andani, Sayed M Saghaian, Y Charles Lu, Mohammad Elahinia, Haluk E Karaca
Porous NiTi scaffolds display unique bone-like properties including low stiffness and superelastic behavior which makes them promising for biomedical applications. The present article focuses on the techniques to enhance superelasticity of porous NiTi structures. Selective Laser Melting (SLM) method was employed to fabricate the dense and porous (32-58%) NiTi parts. The fabricated samples were subsequently heat-treated (solution annealing + aging at 350 °C for 15 min) and their thermo-mechanical properties were determined as functions of temperature and stress...
March 21, 2018: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29302913/principles-and-applications-of-the-balanced-steady-state-free-precession-sequence-in-small-animal-low-field-mri
#7
REVIEW
Mario Ricciardi
Magnetic resonance imaging (MRI) in small animal practice is largely based on classic two-dimensional spin-echo, inversion recovery and gradient-echo sequences which are largely limited by low spatial resolution, especially in low-field (LF)-MRI scanners. Nowadays, however, the availability of volumetric sequences can open new perspectives and enhance the diagnostic potential of this imaging modality. Balanced steady-state free precession (bSSFP) is a three-dimensional gradient-echo sequence in which image contrast is given by the ratio of T2 and T1, resulting in low soft-tissue signal, poor cerebral grey/white matter distinction and a bright signal from free fluid and fat...
March 2018: Veterinary Research Communications
https://www.readbyqxmd.com/read/29239408/qcm-nanomagnetic-beads-biosensor-for-lead-ion-detection
#8
Qingli Zhang, Haixia Cui, Xingliang Xiong, Jun Chen, Ying Wang, Jia Shen, Yiting Luo, Longcong Chen
As lead poses a serious threat to humans even in small amounts, all kinds of lead detection sensors with high sensitivity and selectivity are being constantly improved and put forward. In this report, a novel, simple and label-free quartz crystal microbalance (QCM) biosensor is proposed for detecting lead ions (Pb2+ ). The biosensor takes full advantage of the high specificity of GR-5 DNAzyme to Pb2+ and the high sensitivity of QCM. In particular, nanomagnetic beads (NMBs) are used as a novel and effective mean of signal amplification in the biosensor because of their mass and their ability to enhance the inductive effect, which are very beneficial for both higher sensitivity and a lower detection limit...
January 15, 2018: Analyst
https://www.readbyqxmd.com/read/29202786/perfected-enhanced-recovery-perfect-er-care-versus-standard-acute-care-for-patients-admitted-to-acute-settings-with-hip-fracture-identified-as-experiencing-confusion-study-protocol-for-a-feasibility-cluster-randomized-controlled-trial
#9
RANDOMIZED CONTROLLED TRIAL
Simon P Hammond, Jane L Cross, Lee Shepstone, Tamara Backhouse, Catherine Henderson, Fiona Poland, Erika Sims, Alasdair MacLullich, Bridget Penhale, Robert Howard, Nigel Lambert, Anna Varley, Toby O Smith, Opinder Sahota, Simon Donell, Martyn Patel, Clive Ballard, John Young, Martin Knapp, Stephen Jackson, Justin Waring, Nick Leavey, Gregory Howard, Chris Fox
BACKGROUND: Health and social care provision for an ageing population is a global priority. Provision for those with dementia and hip fracture has specific and growing importance. Older people who break their hip are recognised as exceptionally vulnerable to experiencing confusion (including but not exclusively, dementia and/or delirium and/or cognitive impairment(s)) before, during or after acute admissions. Older people experiencing hip fracture and confusion risk serious complications, linked to delayed recovery and higher mortality post-operatively...
December 4, 2017: Trials
https://www.readbyqxmd.com/read/28476395/all-arthroscopic-treatment-of-dependent-osteochondral-lesions-of-the-ankle-surgical-technique
#10
Nick R Johnson, Spencer Skinner, Amgad M Haleem
A large number of articular cartilage defect treatments have been described. However, few have discussed the use of biologic agents implanted into the so-called dependent defect arthroscopically. Furthermore, even fewer of these reports have contained a description for treating dependent osteochondral lesions of the tibial plafond. Generally, these lesions have been treated with either microfracture or debridement, and the long-term outcomes have been less than satisfactory. With new interest in biologic treatments for osteochondral defects, we believe that bone marrow aspirate concentrate combined with a biologic scaffold provides the necessary components to provide healing of these so-called dependent lesions...
May 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28470403/the-capability-of-inflow-inversion-recovery-magnetic-resonance-compared-to-contrast-enhanced-magnetic-resonance-in-renal-artery-angiography
#11
COMPARATIVE STUDY
Xueqin Xu, Xiaozhu Lin, Juan Huang, Zhaocheng Pan, Xiaolei Zhu, Kemin Chen, Chi-Shing Zee, Fuhua Yan
PURPOSE: To assess the capability of inflow inversion recovery (IFIR) magnetic resonance angiography (MRA), compared with contrast-enhanced MRA (CE-MRA) as reference standard, in evaluating renal artery stenosis (RAS). METHODS: Seventy-two subjects were examined by IFIR MRA with respiratory-gated, prior to CE-MRA with a 1.5-T scanner. Two readers evaluated the quality of IFIR MRA images and renal artery depiction on artery-by-artery basis. The agreement of two methods to assess RAS was analyzed using the Kappa test...
October 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28375660/comparison-of-post-contrast-3d-t-1-mprage-3d-t-1-space-and-3d-t-2-flair-mr-images-in-evaluation-of-meningeal-abnormalities-at-3-t-mri
#12
COMPARATIVE STUDY
Balaji Jeevanandham, Tejas Kalyanpur, Prashant Gupta, Mathew Cherian
OBJECTIVE: This study was to assess the usefulness of newer three-dimensional (3D)-T1 sampling perfection with application optimized contrast using different flip-angle evolutions (SPACE) and 3D-T2 fluid-attenuated inversion recovery (FLAIR) sequences in evaluation of meningeal abnormalities. METHODS: 78 patients who presented with high suspicion of meningeal abnormalities were evaluated using post-contrast 3D-T2 -FLAIR, 3D-T1 magnetization-prepared rapid gradient-echo (MPRAGE) and 3D-T1 -SPACE sequences...
June 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/27826498/functional-diversity-of-resilin-in-arthropoda
#13
REVIEW
Jan Michels, Esther Appel, Stanislav N Gorb
Resilin is an elastomeric protein typically occurring in exoskeletons of arthropods. It is composed of randomly orientated coiled polypeptide chains that are covalently cross-linked together at regular intervals by the two unusual amino acids dityrosine and trityrosine forming a stable network with a high degree of flexibility and mobility. As a result of its molecular prerequisites, resilin features exceptional rubber-like properties including a relatively low stiffness, a rather pronounced long-range deformability and a nearly perfect elastic recovery...
2016: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/27695096/detection-of-leptomeningeal-metastasis-by-contrast-enhanced-3d-t1-space-comparison-with-2d-flair-and-contrast-enhanced-2d-t1-weighted-images
#14
Bomi Gil, Eo-Jin Hwang, Song Lee, Jinhee Jang, Hyun Seok Choi, So-Lyung Jung, Kook-Jin Ahn, Bum-Soo Kim
INTRODUCTION: To compare the diagnostic accuracy of contrast-enhanced 3D(dimensional) T1-weighted sampling perfection with application-optimized contrasts by using different flip angle evolutions (T1-SPACE), 2D fluid attenuated inversion recovery (FLAIR) images and 2D contrast-enhanced T1-weighted image in detection of leptomeningeal metastasis except for invasive procedures such as a CSF tapping. MATERIALS AND METHODS: Three groups of patients were included retrospectively for 9 months (from 2013-04-01 to 2013-12-31)...
2016: PloS One
https://www.readbyqxmd.com/read/27666420/evaluation-of-the-sacral-nerve-plexus-in-pelvic-endometriosis-by-three-dimensional-mr-neurography
#15
Xiaoling Zhang, Meizhi Li, Jian Guan, Huanjun Wang, Shurong Li, Yan Guo, Mingjuan Liu
PURPOSE: To investigate the feasibility of three-dimensional MR neurography (3D MRN) for the sacral plexus using sampling perfection with application-optimized contrasts using different flip angle evolution (SPACE) sequences, and to demonstrate structural abnormalities in the pelvic nerve of women with pelvic endometriosis. MATERIALS AND METHODS: Twenty patients with pelvic endometriosis and 20 healthy controls were examined by contrast-enhanced 3D short time inversion recovery T2-weighted imaging (CE 3D STIR T2WI) SPACE sequences on 3 Tesla MRI...
April 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27539430/sensitive-determination-of-cholesterol-and-its-metabolic-steroid-hormones-by-uhplc-ms-ms-via-derivatization-coupled-with-dual-ultrasonic-assisted-dispersive-liquid-liquid-microextraction
#16
Xian-En Zhao, Ping Yan, Renjun Wang, Shuyun Zhu, Jinmao You, Yu Bai, Huwei Liu
RATIONALE: Quantitative analysis of cholesterol and its metabolic steroid hormones plays a vital role in diagnosing endocrine disorders and understanding disease progression, as well as in clinical medicine studies. Because of their extremely low abundance in body fluids, it remains a challenging task to develop a sensitive detection method. METHODS: A hyphenated technique of dual ultrasonic-assisted dispersive liquid-liquid microextraction (dual-UADLLME) coupled with microwave-assisted derivatization (MAD) was proposed for cleansing, enrichment and sensitivity enhancement...
August 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/27343570/colorimetric-detection-of-gene-transcript-by-target-induced-three-way-junction-formation
#17
Xuchu Wang, Weiwei Liu, Binbin Yin, Pan Yu, Xiuzhi Duan, Zhaoping Liao, Chunhua Liu, Yiwen Sang, Gong Zhang, Yuhua Chen, Zhihua Tao
Gene transcript often varies by alternative splicing, which plays different biological role that results in diversity of gene expression. Therefore, a simple and accurate identification of targeted transcript variant is of prime importance to achieve a precise molecular diagnosis. In this work, we presented a three-way junction based system where two split G-quadruplex forming sequences were coupled into two probes. Only upon the introduction of target gene transcript that offering a specific recognizable splicing site did the two probes assembled into three way junction conformation in a devised process, thus providing a functional G-quadruplex conformation that greatly enhanced hemin peroxidation...
September 1, 2016: Talanta
https://www.readbyqxmd.com/read/27100408/bilateral-filtering-using-the-full-noise-covariance-matrix-applied-to-x-ray-phase-contrast-computed-tomography
#18
S Allner, T Koehler, A Fehringer, L Birnbacher, M Willner, F Pfeiffer, P B Noël
The purpose of this work is to develop an image-based de-noising algorithm that exploits complementary information and noise statistics from multi-modal images, as they emerge in x-ray tomography techniques, for instance grating-based phase-contrast CT and spectral CT. Among the noise reduction methods, image-based de-noising is one popular approach and the so-called bilateral filter is a well known algorithm for edge-preserving filtering. We developed a generalization of the bilateral filter for the case where the imaging system provides two or more perfectly aligned images...
May 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/26836971/nanoengineering-of-a-supramolecular-gel-by-copolymer-incorporation-enhancement-of-gelation-rate-mechanical-property-fluorescence-and-conductivity
#19
Priyadarshi Chakraborty, Sujoy Das, Sanjoy Mondal, Partha Bairi, Arun K Nandi
In the quest to engineer the nanofibrillar morphology of folic acid (F) gel, poly(4-vinylpyridine-co-styrene) (PVPS) is judiciously integrated as a polymeric additive because of its potential to form H-bonding and π-stacking with F. The hybrid gels are designated as F-PVPSx gels, where x denotes the amount of PVPS (mg) added in 2 mL of F gel (0.3%, w/v). The assistance of PVPS in the gelation of F is manifested from the drop in critical gelation concentration and increased fiber diameter and branching of F-PVPSx gels compared to that of F gel...
February 23, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/26723689/dielectric-and-specific-heat-relaxations-in-vapor-deposited-glycerol
#20
A Kasina, T Putzeys, M Wübbenhorst
Recently [S. Capponi, S. Napolitano, and M. Wübbenhorst, Nat. Commun. 3, 1233 (2012)], vapor deposited glasses of glycerol have been found to recover their super-cooled liquid state via a metastable, ordered liquid (MROL) state characterized by a tremendously enhanced dielectric strength along with a slow-down of the relaxation rate of the structural relaxation. To study the calorimetric signature of this phenomenon, we have implemented a chip-based, differential AC calorimeter in an organic molecular beam deposition setup, which allows the simultaneous measurement of dielectric relaxations via interdigitated comb electrodes and specific heat relaxation spectra during deposition and as function of the temperature...
December 28, 2015: Journal of Chemical Physics
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