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https://www.readbyqxmd.com/read/28214998/optimal-visual-haptic-integration-with-articulated-tools
#1
Chie Takahashi, Simon J Watt
When we feel and see an object, the nervous system integrates visual and haptic information optimally, exploiting the redundancy in multiple signals to estimate properties more precisely than is possible from either signal alone. We examined whether optimal integration is similarly achieved when using articulated tools. Such tools (tongs, pliers, etc) are a defining characteristic of human hand function, but complicate the classical sensory 'correspondence problem' underlying multisensory integration. Optimal integration requires establishing the relationship between signals acquired by different sensors (hand and eye) and, therefore, in fundamentally unrelated units...
February 18, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28214989/exposure-response-analyses-of-blood-pressure-and-heart-rate-changes-for-methylphenidate-in-healthy-adults
#2
Liang Li, Yaning Wang, Ramana S Uppoor, Mehul U Mehta, Tiffany Farchione, Mitchell V Mathis, Hao Zhu
The aim of the study was to evaluate the exposure-response (E-R) relationships of blood pressure (BP) and heart rate (HR) changes in healthy adults taking methylphenidate (MPH). Intensive time profiles of BP and HR from healthy adults in placebo and MPH treatment arms of seven clinical trials from the FDA internal database were utilized for this analysis. The analysis model contains a circadian component for placebo effect and an E-R component to describe drug effect. Internal validation was performed using goodness-of-fit plots and visual predictive check...
February 18, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28214988/an-alternative-splice-variant-of-human-%C3%AE-a-crystallin-modulates-the-oligomer-ensemble-and-the-chaperone-activity-of-%C3%AE-crystallins
#3
Waldemar Preis, Annika Bestehorn, Johannes Buchner, Martin Haslbeck
In humans, ten genes encode small heat shock proteins with lens αA-crystallin and αB-crystallin representing two of the most prominent members. The canonical isoforms of αA-crystallin and αB-crystallin collaborate in the eye lens to prevent irreversible protein aggregation and preserve visual acuity. α-Crystallins form large polydisperse homo-oligomers and hetero-oligomers and as part of the proteostasis system bind substrate proteins in non-native conformations, thereby stabilizing them. Here, we analyzed a previously uncharacterized, alternative splice variant (isoform 2) of human αA-crystallin with an exchanged N-terminal sequence...
February 18, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28214955/ranibizumab-versus-aflibercept-for-macular-edema-due-to-central-retinal-vein-occlusion-18-month-results-in-real-life-data
#4
Irini Chatziralli, George Theodossiadis, Marilita M Moschos, Panagiotis Mitropoulos, Panagiotis Theodossiadis
PURPOSE: The objective of this study was to compare the anatomical and functional outcomes of ranibizumab versus aflibercept for the treatment of macular edema due to central retinal vein occlusion (CRVO) in routine clinical practice. METHODS: Participants in this observational study included 62 treatment-naïve patients with CRVO who received intravitreal injections of either ranibizumab or aflibercept. The demographic data, best-corrected visual acuity (BCVA) and spectral-domain optical coherence tomography (SD-OCT) characteristics were evaluated at baseline and at months 1, 2, 3, 6, 12 and 18 post-treatment...
February 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28214766/direct-and-generative-retrieval-of-autobiographical-memories-the-roles-of-visual-imagery-and-executive-processes
#5
Rachel J Anderson, Stephen A Dewhurst, Graham M Dean
Two experiments used a dual task methodology to investigate the role of visual imagery and executive resources in the retrieval of specific autobiographical memories. In Experiment 1, dynamic visual noise led to a reduction in the number of specific memories retrieved in response to both high and low imageability cues, but did not affect retrieval times. In Experiment 2, irrelevant pictures reduced the number of specific memories but only in response to low imageability cues. Irrelevant pictures also increased response times to both high and low imageability cues...
February 16, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28214641/posterior-reversible-encephalopathy-syndrome-causing-vision-loss-following-endoscopic-endonasal-resection-of-pituitary-adenoma-a-case-report
#6
Nicolas W Villelli, Daniel M Prevedello, Daniel S Ikeda, Alaa S Montaser, Bradley A Otto, Ricardo L Carrau
BACKGROUND: Posterior Reversible Encephalopathy Syndrome (PRES) is characterized by headache, altered mental status, visual changes, and seizure combined with brain imaging consistent with cerebral edema without infarction. To the best of our knowledge, we report the first case of PRES following an endoscopic endonasal resection of a pituitary macroadenoma. CASE DESCRIPTION: A 59-year-old female was diagnosed with a pituitary macroadenoma, for which she underwent endoscopic endonasal extracapsular resection...
February 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28214571/encountering-dropped-gallstones-during-robotic-assisted-laparoscopic-radical-prostatectomy
#7
Lisa Brubaker, Michael Allgaeuer, Baris Turkbey, Peter Pinto, Abhinav Sidana
We describe a case of an unusual finding during robotic-assisted laparoscopic radical prostatectomy and bilateral pelvic lymphadenectomy in a 66-year-old male with Stage IIb (T2c, N0, M0) prostate adenocarcinoma. During the operation, intraperitoneal examination of the rectovesical pouch revealed calcifications and stones which were subsequently identified as gallstones. While these stones were not noted initially on this patient's preoperative multiparametric MRI (mpMRI), a retrospective review demonstrated hypointense foci in the rectovesical pouch...
February 15, 2017: Urology
https://www.readbyqxmd.com/read/28214552/interocular-suppression-in-children-with-deprivation-amblyopia
#8
Lisa Hamm, Zidong Chen, Jinrong Li, Joanna Black, Shuan Dai, Junpeng Yuan, Minbin Yu, Benjamin Thompson
In patients with anisometropic or strabismic amblyopia, interocular suppression can be minimized by presenting high contrast stimulus elements to the amblyopic eye and lower contrast elements to the fellow eye. This suggests a structurally intact binocular visual system that is functionally suppressed. We investigated whether suppression can also be overcome by contrast balancing in children with deprivation amblyopia due to childhood cataracts. To quantify interocular contrast balance, contrast interference thresholds were measured using an established dichoptic global motion technique for 21 children with deprivation amblyopia, 14 with anisometropic or mixed strabismic/anisometropic amblyopia and 10 visually normal children (mean age mean = 9...
February 15, 2017: Vision Research
https://www.readbyqxmd.com/read/28214496/new-diagnostic-modalities-in-the-evaluation-of-lymphedema
#9
REVIEW
Thomas F O'Donnell, John C Rasmussen, Eva M Sevick-Muraca
OBJECTIVE: Currently, lymphedema (LED) is typically diagnosed clinically on the basis of a patient's history and characteristic physical findings. Whereas the diagnosis of LED is sometimes confirmed by lymphoscintigraphy (LSG), the technique is limited in both its ability to identify disease and to guide therapy. Recent advancements provide opportunities for new imaging techniques not only to assist in the diagnosis of LED, based on anatomic changes, but also to assess contractile function and to guide therapeutic intervention...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28214368/evaluation-of-deformable-image-registration-between-external-beam-radiotherapy-and-hdr-brachytherapy-for-cervical-cancer-with-a-3d-printed-deformable-pelvis-phantom
#10
Noriyuki Kadoya, Yuya Miyasaka, Yujiro Nakajima, Yoshihiro Kuroda, Kengo Ito, Mizuki Chiba, Kiyokazu Sato, Suguru Dobashi, Takaya Yamamoto, Noriyoshi Takahashi, Masaki Kubozono, Ken Takeda, Keiichi Jingu
PURPOSE: In this study, we developed a 3D-printed deformable pelvis phantom for evaluating spatial DIR accuracy. We then evaluated the spatial DIR accuracies of various DIR settings for cervical cancer. METHODS: A deformable female pelvis phantom was created based on patient CT data using 3D printing. To create the deformable uterus phantom, we first 3D printed both a model of uterus and a model of the internal cavities of the vagina and uterus. We then made a mold using the 3D printed uterus phantom...
February 18, 2017: Medical Physics
https://www.readbyqxmd.com/read/28214343/high-resolution-ultrasound-visualization-of-the-deep-branch-of-the-ulnar-nerve
#11
Georg Riegler, Doris Lieba-Samal, Peter C Brugger, Christopher Pivec, Hannes Platzgummer, Martin Vierhapper, Gabriela Muschitz, Suren Jengojan, Gerd Bodner
INTRODUCTION: The value of imaging the deep branch of the ulnar nerve (DBUN) over its entire course has not been clarified. Therefore, this study aimed to evaluate the feasibility of visualizing the DBUN from its origin to the most distal point. METHODS: We performed high-resolution ultrasound (HRUS) with high-frequency probes (18-22MhZ), HRUS-guided ink-marking, and consecutive dissection in 8 fresh cadaver hands. In both hands of 10 healthy volunteers (n=20), the cross-sectional area (CSA) was measured at 2 different locations (R1+R2)...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214332/comparison-of-several-white-matter-tracts-in-feline-and-canine-brain-by-using-magnetic-resonance-diffusion-tensor-imaging
#12
Olivier Jacqmot, Bert Van Thielen, Alex Michotte, Inneke Willekens, Filip Verhelle, Peter Goossens, Filip De Ridder, Jan Pieter Clarys, Anne Vanbinst, Cindy Peleman, Johan de Mey
Recently, we published a first anatomical Diffusion Tensor Imaging (DTI) atlas regarding white matter tracts in the canine brain. The purpose of this study was to show the significance of DTI in the revelation of the white matter fibres in the feline brain (i.e. to obtain an anatomical DTI atlas of images) and to descriptively compare these to previously obtained white matter fibre images of the canine brain. DTI MR Images of 4 cats euthanised for reasons other than neurological disorders were obtained with a 3 T system...
February 18, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28214320/indocyanine-green-assisted-sentinel-lymph-node-biopsy-in-melanoma-using-the-fovis-system
#13
Daniela Göppner, Stephan Nekwasil, Anne Jellestad, Alexander Sachse, Karl-Heinz Schönborn, Harald Gollnick
BACKGROUND: Metastatic involvement of the sentinel lymph node (SLN) represents a key prognostic factor in melanoma. The combined use of a radiocolloid (technetium-99m) and blue dye is the gold standard in sentinel lymph node biopsy (SLNB). In this context, near-infrared (NIR) fluorescence imaging with indocyanine green (ICG) has been suggested as an alternative. The objective of the present study was to examine the potential advantages of fluorescence-guided SLNB - compared to the conventional method - with respect to the visualization of lymphatic drainage pathways and the SLN...
February 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28214228/coronary-artery-stent-evaluation-with-model-based-iterative-reconstruction-at-coronary-ct-angiography
#14
Fuminari Tatsugami, Toru Higaki, Hiroaki Sakane, Wataru Fukumoto, Yoko Kaichi, Makoto Iida, Yasutaka Baba, Masao Kiguchi, Yasuki Kihara, So Tsushima, Kazuo Awai
RATIONALE AND OBJECTIVES: This study aims to compare the image quality of coronary artery stent scans on computed tomography images reconstructed with forward projected model-based iterative reconstruction solution (FIRST) and adaptive iterative dose reduction 3D (AIDR 3D). MATERIALS AND METHODS: Coronary computed tomography angiography scans of 23 patients with 32 coronary stents were used. The images were reconstructed with AIDR 3D and FIRST. We generated computed tomography attenuation profiles across the stents and measured the width of the edge rise distance and the edge rise slope (ERS)...
February 14, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28214112/communicating-airport-noise-emission-data-to-the-general-public
#15
REVIEW
Luis Gasco, Cesar Asensio, Guillermo de Arcas
Despite the efforts that the aviation industry has undertaken during the last few decades, noise annoyance remains high, partly because of the continuous transport demands of modern societies and partly because of changes in citizen expectations and their growing environmental concerns. Although modern aircraft are considerably quieter than their predecessors, the number of complaints has not decreased as much as expected. Therefore, the aeronautical sector has tried more sociological and/or psychological strategies to gain acceptance through awareness and community engagement...
February 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28214099/lymph-node-stroma-dynamics-and-approaches-for-their-visualization
#16
REVIEW
Rebecca Gentek, Marc Bajénoff
Lymphoid stromal cells are best known as the architectural cells of lymphoid organs. For decades, they have been considered as inert elements of the immune system but this view has changed dramatically in recent years, when it was discovered that they are endowed with critical immunoregulatory functions. It is now accepted that without them, the adaptive immune response would be compromised, if not abrogated entirely. Here, we review the function of the major lymphoid stromal cell types; the way they remodel upon inflammation; discuss the available tools to track their behavior; and introduce several methodological approaches that we believe will help improving our knowledge of these pivotal cell types...
February 14, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28214086/a-retrospective-study-of-epidural-and-intravenous-steroids-after-percutaneous-endoscopic-lumbar-discectomy-for-large-lumbar-disc-herniation
#17
Yang Zhang, Xin-Jian Yang, Teng-Hui Zeng, Yi-Yan Qiu, Yi-Tian Wang, Fei-Guo Liang
OBJECTIVE: To assess the early curative effect of epidural or intravenous administration of steroids during a percutaneous endoscopic lumbar discectomy (PELD). METHODS: 28 consecutive patients who underwent PELD due to large lumbar disc herniation between November 2014 and January 2016 were followed up for 6 months. These patients were divided into two groups according to the treatment they received after PELD. 14 patients (Group A) were treated by PELD and epidural steroids, while the other 14 patients (Group B) were treated by PELD and intravenous steroids...
January 20, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28214014/controlling-the-digital-ulcerative-disease-in-systemic-sclerosis-is-associated-with-improved-hand-function
#18
Luc Mouthon, Patrick H Carpentier, Catherine Lok, Pierre Clerson, Virginie Gressin, Eric Hachulla, Alice Bérezné, Elisabeth Diot, Aurélie Khau Van Kien, Patrick Jego, Christian Agard, Anne-Bénédicte Duval-Modeste, Agnès Sparsa, Eve Puzenat, Marie-Aleth Richard
OBJECTIVES: Ischemic digital ulcers (DU) represent a major complication of systemic sclerosis (SSc). We investigated the impact of controlling the ulcerative disease on disability, pain, and quality of life in SSc patients receiving bosentan. METHODS: ECLIPSE (Study AC-052-517) is a 2-year prospective, multicenter, and observational study. Patients with SSc who experienced at least 1 DU in the previous year and received bosentan were included between October 2009 and March 2011...
January 13, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28213895/safety-of-implantation-of-a-leadless-pacemaker-via-femoral-approach-in-the-presence-of-an-inferior-vena-cava-filter
#19
Muhammad R Afzal, Janice Ackers, John D Hummel, Ralph Augostini
A 61-year-old woman with symptomatic complete heart block was referred for permanent pacemaker. The presence of a left sided arteriovenous fistula and right sided mastectomy with lymph node dissection precluded the implantation of a trans-venous pacemaker and therefore, a leadless pacemaker was recommended. The patient also had an inferior vena cava (IVC) filter. The passage of a 27 French introducer sheath housing the leadless pacemaker through IVC filter was carefully visualized under fluoroscopy and advanced to the right ventricle without any compromise to the filter...
February 17, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28213868/elliptical-fourier-analysis-fundamentals-applications-and-value-for-forensic-anthropology
#20
REVIEW
Jodi Caple, John Byrd, Carl N Stephan
The numerical description of skeletal morphology enables forensic anthropologists to conduct objective, reproducible, and structured tests, with the added capability of verifying morphoscopic-based analyses. One technique that permits comprehensive quantification of outline shape is elliptical Fourier analysis. This curve fitting technique allows a form's outline to be approximated via the sum of multiple sine and cosine waves, permitting the profile perimeter of an object to be described in a dense (continuous) manner at a user-defined level of precision...
February 17, 2017: International Journal of Legal Medicine
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