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https://www.readbyqxmd.com/read/30114717/preoperative-assessment-of-coronary-arteries-by-cardiac-computed-tomography-in-patients-with-lung-cancer
#1
Fan Zhang, Jing Chen, Zhi-Gang Yang, Han Liu
BACKGROUND:  To retrospectively evaluate characteristics of coronary artery disease (CAD) in patients undergoing lung resection for cancer by using dual-source computed tomography (DSCT), thus increasing our understanding of perioperative evaluation. METHODS:  DSCT coronary angiography was performed for perioperative evaluation in 145 patients with non-small cell lung cancer (NSCLC) due to suspected CAD. The imaging characteristics of CAD including extent, distribution and types of plaques, and luminal stenosis and congenial anomalous including origin of coronary arteries and myocardial bridge (MB) were evaluated and compared by sex, smoking behavior, and pathological types...
August 16, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/30114672/effects-of-age-and-individual-experiences-on-tactile-perception-over-the-life-span-in-women
#2
Ben Godde, Patrick Bruns, Volker Wendel, Mireille Trautmann
Tactile perception results from the interplay of peripheral and central mechanisms for detection and sensation of objects and the discrimination and evaluation of their size, shapes, and surface characteristics. For different tasks, we investigated this interaction between more bottom-up stimulus-driven and rather top-down attention-related and cognitive processes in tactile perception. Moreover, we were interested in effects of age and tactile experiences on this interaction. 299 right-handed women participated in our study and were divided into five age groups: 18-25 years (N = 77), 30-45 years (N = 76), 50-65 years (N = 62), 66-75 years (N = 63) and older than 75 years (N = 21)...
August 13, 2018: Acta Psychologica
https://www.readbyqxmd.com/read/30114629/effects-of-fish-oil-based-lipid-emulsion-on-inflammation-and-kidney-injury-in-mice-subjected-to-unilateral-hind-limb-ischemia-reperfusion
#3
Juey-Ming Shih, Yao-Ming Shih, Yu-Chen Hou, Man-Hui Pai, Chiu-Li Yeh, Sung-Ling Yeh
This study investigated the effects of a fish oil-based lipid emulsion (FO) on local skeletal muscle and remote renal damage at 72 h post-reperfusion in a murine model of hind limb ischemia-reperfusion (IR) injury. Mice were assigned to 1 sham group and 3 IR groups. The IR groups were treated daily with either saline or FO from 3 days prior to limb ischemia till 3 days after reperfusion. Limb IR was induced by applying a 4.5-oz orthodontic rubber band above the left greater trochanter for 120 min followed by band-released reperfusion for 72 h...
August 13, 2018: Cytokine
https://www.readbyqxmd.com/read/30114550/quantification-of-the-detailed-cardiac-left-ventricular-trabecular-morphogenesis-in-the-mouse-embryo
#4
Bruno Paun, Bart Bijnens, Andrew C Cook, Timothy J Mohun, Constantine Butakoff
During embryogenesis, a mammalian heart develops from a simple tubular shape into a complex 4-chamber organ, going through four distinct phases: early primitive tubular heart, emergence of trabeculations, trabecular remodeling and development of the compact myocardium. In this paper we propose a framework for standardized and subject-independent 3D regional myocardial complexity analysis, applied to analysis of the development of the mouse left ventricle. We propose a standardized subdivision of the myocardium into 3D overlapping regions (in our case 361) and a novel visualization of myocardial complexity, whereupon we: 1) extend the fractal dimension, commonly applied to image slices, to 3D and 2) use volume occupied by the trabeculations in each region together with their surface area, in order to quantify myocardial complexity...
August 2, 2018: Medical Image Analysis
https://www.readbyqxmd.com/read/30114544/a-frontal-tumefactive-demyelinating-lesion-mimicking-glioblastoma-differentiated-by-methionine-positron-emission-tomography
#5
Shoji Yasuda, Hirohito Yano, Akio Kimura, Natsuko Suzui, Noriyuki Nakayama, Jun Shinoda, Toru Iwama
BACKGROUND: Tumefactive demyelinating lesion (TDL) is often reported as a rare variation of multiple sclerosis (MS). TDL is difficult to diagnose solely by magnetic resonance imaging (MRI) in patients with no history of MS. This is because the lesion often shows ring enhancement with perifocal brain edema on gadolinium MRI, thus mimicking glioblastoma multiforme (GBM). CASE DESCRIPTION: A 54-year-old healthy woman complained of headache 1 month before admission...
August 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30114541/unilateral-supraorbital-approach-to-clip-bilateral-posterior-communicating-artery-aneurysms-2-dimensional-operative-video
#6
Jun Wang, Feng Xu
This video demonstrates bilateral posterior communicating artery (PCoA) aneurysms that were treated through a unilateral supraorbital approach. A 53-year-old woman presented with a Hunt-Hess grade I subarachnoid hemorrhage (SAH). Computed tomography scan showed SAH in the left sylvian fissure and basal cistern. Angiography demonstrated bilateral aneurysms of the PCoA. Considering posteromedial projection of the contralateral aneurysm, unilateral approach from the side of the ruptured aneurysm was chosen to clip bilateral aneurysms...
August 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/30114500/endovascular-repair-of-iliac-vein-laceration-associated-to-complex-pelvic-fracture
#7
Vicente Mosquera, Carlota Fernández, Amer Zanabili, Jose A Del Castro, Mónica G Pandavenes, Manuel Alonso
BACKGROUND: Iliac vein injury associated with pelvic fracture due to blunt trauma is an uncommon and difficult diagnosis but a life-threatening condition which often requires an emergent management. Although open repair has been traditionally used as the treatment of choice in unstable patients, it is controversial, given the difficulty injured vessel exposure in patients with significant retroperitoneal hematoma as well as tamponade effect loss associated to laparotomy. We present a challenging case of iliac vein laceration successfully treated by placement of a self-expanding covered stent...
August 13, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/30114475/the-left-central-nucleus-of-the-amygdala-contributes-to-mechanical-allodynia-and-hyperalgesia-following-right-sided-peripheral-nerve-injury
#8
Andrew H Cooper, Jennifer J Brightwell, Naomi S Hedden, Bradley K Taylor
The left and right central nucleus of the amygdala (CeA) exert asymmetric pronociceptive functions. In the setting of a transient noxious stimulus or persistent inflammatory pain, neuronal activity increases in the right but not left CeA, regardless of side of injury. Much less is known regarding this lateralization with respect to the behavioral manifestations of persistent neuropathic pain. To address this question, we conducted spared nerve injury (SNI) to the left or right hindlimb and then inactivated the left and/or right CeA with local microinjection of lidocaine...
August 13, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/30114474/athletes-versus-video-game-players-a-predictive-contextual-processing-study
#9
Pablo Diaz-Brage, Miguel Fernandez-Del-Olmo, Ling Li, Dan Rio-Rodriguez, Noa Fogelson
We investigated the effect of abstract and real life meaningful images from sports on predictive contextual processing in professional athletes and video gamers. EEG was recorded in three groups: professional basketball players (BP), professional athletes of individual sports (IA) and experienced action video game players (VG). Two recording sessions, each with a different set of visual stimuli was presented: either triangles facing left, up, right or down or four images of a basketball player throwing a ball...
August 13, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/30114395/looking-for-the-right-mate-what-we-really-known-on-the-courtship-and-mating-of-lucilia-sericata-meigen
#10
Giovanni Benelli, Donato Romano
Lucilia sericata is well known for causing myiasis in humans, livestock, pets and wildlife. It also vectors various pathogens, including paratuberculosis agents. This species can be exploited in maggot therapy to treat necrotic wounds, particularly those infected by multidrug-resistant pathogens. Despite the high medical and veterinary importance of this species, our knowledge about its courtship and mating behavior is still limited. In this study, we quantified the courtship and mating behavior of L. sericata, shedding light on the impact of lateralization of selected behavioral traits during sexual interactions...
August 13, 2018: Acta Tropica
https://www.readbyqxmd.com/read/30114360/improvement-in-nutritional-attributes-of-rice-starch-with-dodecyl-gallate-complexation-a-molecular-dynamic-simulation-and-in-vitro-study
#11
Chengdeng Chi, Xiaoxi Li, Tao Feng, Xiaolan Zeng, Ling Chen, Lin Li
To improve starch functionalities such as digestibility and antioxidant activity, rice starch was complexed with antioxidant dodecyl gallate (DG). Molecular dynamics simulation showed that the starch-DG inclusion complex was favorable, and in 50 ns, the dodecyl segment resided in the helix of the amylose cavities, but the gallate tail left outside. This theoretical finding was validated by UV-vis spectroscopy, calorimetric and crystalline measurements, indicating V-type crystalline structures containing type I and type II inclusion complexes can be formed after DG complexation...
August 16, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/30114344/alterations-in-hub-organization-in-the-white-matter-structural-network-in-toddlers-with-autism-spectrum-disorder-a-2-year-follow-up-study
#12
Lu Qian, Yao Wang, KangKang Chu, Yun Li, ChaoYong Xiao, Ting Xiao, Xiang Xiao, Ting Qiu, YunHua Xiao, Hui Fang, XiaoYan Ke
Little is currently known about the longitudinal developmental patterns of hubs in the whole-brain white matter (WM) structural networks among toddlers with autism spectrum disorder (ASD). This study utilized diffusion tensor imaging (DTI) and deterministic tractography to map the WM structural networks in 37 ASD toddlers and 27 age-, gender- and developmental quotient-matched controls with developmental delay (DD) toddlers aged 2-3 years old at baseline (Time 1) and at 2-year follow-up (Time 2). Furthermore, graph-theoretical methods were applied to investigate alterations in the network hubs in these patients at the two time points...
August 16, 2018: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/30114262/high-sensitivity-c-reactive-protein-in-heart-failure-with-preserved-ejection-fraction
#13
Hilary M DuBrock, Omar F AbouEzzeddine, Margaret M Redfield
BACKGROUND: Microvascular inflammation may contribute to the pathogenesis of both heart failure with preserved ejection fraction (HFpEF) and pulmonary hypertension (PH). We investigated whether the inflammation biomarker C-reactive protein (CRP) was associated with clinical characteristics, disease severity or PH in HFpEF. METHODS: Patients in the Phosphodiesterase-5 Inhibition to Improve Clinical Status and Exercise Capacity in Diastolic Heart failure (RELAX) trial had baseline high-sensitivity CRP levels measured (n = 214)...
2018: PloS One
https://www.readbyqxmd.com/read/30114162/bidirectional-long-reach-pon-using-kramers-kronig-based-receiver-for-rayleigh-backscattering-noise-and-ssbi-interference-elimination
#14
Di Li, Quan Yu, Lei Deng, Liang Huo, Songnian Fu, Ming Tang, Mengfan Cheng, Minming Zhang, Deming Liu
In this paper, a novel bidirectional long-reach PON is proposed and demonstrated by using Kramers-Kronig (KK)-based receiver and 7-core fiber to simultaneously cope with the induced signal-signal beating interference (SSBI) and Rayleigh backscattering (RB) noises. A low-cost self-homodyne detection using only one PD is used at both OLT and ONU, and the middle core of 7-core fiber is used to deliver the seed light to ONUs for colorless upstream transmission, and the upstream and downstream signals are transmitted simultaneously over the same outer core for each ONU...
July 23, 2018: Optics Express
https://www.readbyqxmd.com/read/30114097/development-of-a-whiteness-formula-for-surface-colors-under-an-arbitrary-light-source
#15
Minchen Wei, Siyuan Chen, Hsin-Pou Huang, Ming Ronnier Luo
The whiteness specification is critically important in surface color industry, especially when fluorescent whitening agents (FWAs) are added to objects. The CIE whiteness formula, the most widely used whiteness formula, only characterizes the whiteness under CIE standard D65, which ignores the change of whiteness under different light sources due to the spectral content of the light sources. Though the adoption of a Chromatic Adaptation Transform (CAT02) in the CIE whiteness formula was found effective in recent studies, it failed to allow a comparison across different correlated color temperatures (CCTs)...
July 9, 2018: Optics Express
https://www.readbyqxmd.com/read/30114062/circular-polarization-sensitive-absorption-in-refractory-metamaterials-composed-of-molybdenum-zigzag-arrays
#16
Meiyan Pan, Qiang Li, Yu Hong, Lu Cai, Jun Lu, Min Qiu
Circularly polarized light (CPL) is utilized in various fields, including optical communication and biological imaging. To overcome the lack of circular-polarization-sensitive absorbers working at high temperature, a refractory and circular-polarization-sensitive absorber comprised of molybdenum zigzag arrays is proposed. At certain resonant wavelengths, one component of circular polarization is absorbed by confining electromagnetic field in the dielectric layer, while the other component is backscattered. The circular-polarization-sensitive absorber could be applied as a CPL thermal radiator as well as a reflective linear-to-circular polarizer...
July 9, 2018: Optics Express
https://www.readbyqxmd.com/read/30113992/comparison-of-site-localization-techniques-for-brain-stimulation
#17
Stevan Nikolin, Olav DʼSouza, Vedran Vulovic, Angelo Alonzo, Nicholas Chand, Vanessa Dong, Donel Martin, Colleen Loo
OBJECTIVES: The dorsolateral prefrontal cortex (DLPFC) is a commonly targeted site using noninvasive brain stimulation techniques. Methods used to localize this site commonly rely on the International 10-20 electroencephalography (EEG) system, including elastic EEG caps, which stretch to accommodate varying head sizes, as well as the Beam F3 algorithm, which uses scalp measurements to calculate the location of the DLPFC. Both methods have been validated against magnetic resonance imaging-based DLPFC localization and are regularly used in research centers and clinics, but an in vivo comparison of reliability has not yet been conducted...
August 14, 2018: Journal of ECT
https://www.readbyqxmd.com/read/30113923/symmetric-tract-based-spatial-statistics-of-patients-with-left-versus-right-mesial-temporal-lobe-epilepsy-with-hippocampal-sclerosis
#18
Angelika B Mennecke, Julie Rösch, Burkhard S Kasper, Manuel A Schmidt, Frederik B Laun, Karl Rössler, Roland Coras, Hajo M Hamer, Arnd Dörfler
This study aims to investigate the diffusion metrics of left versus right temporal lobe epilepsy in a well-defined subgroup of patients with mesial temporal lobe epilepsy (mTLE) because of unilateral hippocampal sclerosis while taking into account interhemispheric differences. Eighteen patients with TLE [nine left temporal lobe epilepsy (LTLE) and nine right temporal lobe epilepsy (RTLE)] and a norm group of 36 nonepileptic individuals were scanned with a multiband accelerated diffusion tensor imaging protocol at 3T...
August 15, 2018: Neuroreport
https://www.readbyqxmd.com/read/30113921/abnormal-intrinsic-brain-activity-in-individuals-with-peripheral-vision-loss-because-of-retinitis-pigmentosa-using-amplitude-of-low-frequency-fluctuations
#19
Xin Huang, Fu-Qing Zhou, Han-Dong Dan, Yin Shen
The study aimed to determine alterations in intrinsic brain activity in retinitis pigmentosa (RP) individuals using the amplitude of low-frequency fluctuation (ALFF)/fractional amplitude of low-frequency fluctuation (fALFF) method. Sixteen RP individuals (10 men and six women) and 14 healthy controls (HCs) (six men and eight women) closely matched in age, sex, and education were enrolled in the study. The ALFF/fALFF method was applied to compare different intrinsic brain activities between the RP group and the HC group...
August 15, 2018: Neuroreport
https://www.readbyqxmd.com/read/30113903/convolutional-neural-network-with-shape-prior-applied-to-cardiac-mri-segmentation
#20
Clement Zotti, Zhiming Luo, Alain Lalande, Pierre-Marc Jodoin
In this paper, we present a novel convolutional neural network (CNN) architecture to segment images from a series of short-axis cardiac magnetic resonance slices (CMRI). The proposed model is an extension of the U-net that embeds a cardiac shape prior and involves a loss function tailored to the cardiac anatomy. Our system takes as input raw MR images, requires no manual preprocessing or image cropping and is trained to segment the endocardium and epicardium of the left ventricle, the endocardium of the right ventricle, as well as the center of the left ventricle...
August 14, 2018: IEEE Journal of Biomedical and Health Informatics
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