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https://www.readbyqxmd.com/read/29457381/a-multicentre-study-of-validity-and-reliability-of-responses-to-hand-cold-challenge-as-measured-by-laser-speckle-contrast-imaging-and-thermography-outcome-measures-for-systemic-sclerosis-related-raynaud-s-phenomenon
#1
Jack D Wilkinson, Sarah A Leggett, Elizabeth J Marjanovic, Tonia L Moore, John Allen, Marina E Anderson, Jason Britton, Maya H Buch, Francesco Del Galdo, Christopher P Denton, Graham Dinsdale, Bridgett Griffiths, Frances Hall, Kevin Howell, Audrey MacDonald, Neil J McHugh, Joanne B Manning, John D Pauling, Christopher Roberts, Jacqueline A Shipley, Ariane L Herrick, Andrea K Murray
BACKGROUND: Objective and reliable outcome measures to facilitate clinical trials of novel treatments for systemic sclerosis (SSc)-related Raynaud's phenomenon (RP) are badly needed. Laser speckle contrast imaging (LSCI) and thermography are non-invasive measures of perfusion that show excellent potential. The purpose of this multi-centre study was to determine the reliability and validity of a hand cold challenge protocol using LSCI, standard thermography and low-cost mobile phone-based thermography...
February 18, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29456769/a-case-of-schwannoma-of-the-submandibular-region
#2
Babatunde O Bamgbose, Akiko Sato, Yoshinobu Yanagi, Miki Hisatomi, Yohei Takeshita, Irfan Sugianto, Junichi Asaumi
Background: We herein described a rare case of schwannoma of the hypoglossal nerve in the submandibular region with diagnostic imaging and histopathological findings. Case Report: A 31-years-old woman has had a palpable firm, rubbery, freely mobile mass in the submandibular region. Of imaging, MR images showed homogeneous isointensity on T1-weighted imaging (T1-WI), heterogeneous hypointensity on T2-WI, heterogeneous hyperintensity on short T1 inversion recovery (STIR), and heterogeneous enhancement on contrast-enhanced T1-WI...
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29455909/elevated-tissue-sodium-deposition-in-patients-with-type-2-diabetes-on-hemodialysis-detected-by-23-na-magnetic-resonance-imaging
#3
Christoph Kopp, Peter Linz, Carolin Maier, Peter Wabel, Matthias Hammon, Armin M Nagel, Daniela Rosenhauer, Stephan Horn, Michael Uder, Friedrich C Luft, Jens Titze, Anke Dahlmann
Long-term elevated blood sugar levels result in tissue matrix compositional changes in patients with diabetes mellitus type 2 (T2DM). We hypothesized that hemodialysis patients with T2DM might accumulate more tissue sodium than control hemodialysis patients. To test this,23 Na magnetic resonance imaging (23 Na MRI) was used to estimate sodium in skin and muscle tissue in hemodialysis patients with or without T2DM. Muscle fat content was estimated by1 H MRI and tissue sodium content by23 Na MRI pre- and post-hemodialysis in ten hemodialysis patients with T2DM and in 30 matched control hemodialysis patients...
February 15, 2018: Kidney International
https://www.readbyqxmd.com/read/29455904/hypoglossal-nerve-paralysis-in-a-child-after-a-dental-procedure
#4
Simona D Marino, Laura Schiavone, Flavia M C La Mendola, Tiziana Timpanaro, Maria Elena Cucuzza, Filippo Greco, Pierluigi Smilari, Agata Fiumara, Andrea Domenico Praticò
Unilateral palsy of the hypoglossal nerve is a rare complication of orthodontic procedures. The main reported causes of HNP are: orthopedic and otorhinolaryngology surgical interventions, and in particular maneuvers involving compression or overstretching of the hypoglossal nerve, dental procedures and traumas, and also infections, motoneuron disorders, tumors, vascular diseases. Diagnosis is usually performed by electrophysiology studies (EMG-VCN), and brain magnetic resonance imaging (MRI) is useful to exclude other causes...
February 6, 2018: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29455570/unmet-digital-health-service-needs-in-dermatology-patients
#5
Christian Greis, Christine Meier Zürcher, Vahid Djamei, Andreas Moser, Stephan Lautenschlager, Alexander A Navarini
BACKGROUND: Digital health services are rapidly gaining acceptance in healthcare systems. Dermatology as an image-centric specialty is particularly well suited for telemedical services. However, dermatology patients' demands of electronic services remain largely unexplored. METHODS: This study investigated patients' views in primary, secondary and tertiary referral centers. In August 2017, 841 questionnaires were filled in by dermatology patients. RESULTS: 76...
February 19, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29455036/short-term-post-operative-morphing-of-sacrocolpopexy-mesh-measured-by-magnetic-resonance-imaging
#6
Nikhil Sindhwani, Geertje Callewaert, Thomas Deprest, Susanne Housmans, Dirk Van Beckevoort, Jan Deprest
BACKGROUND: Sacrocolpopexy (SC) involves suspension of the vaginal vault or cervix to the sacrum using a mesh. Following insertion, the meshes have been observed to have undergone dimensional changes. OBJECTIVE: To quantify dimensional changes of meshes following implantation and characterize their morphology in-vivo. DESIGN SETTING AND PARTICIPANTS: 24 patients underwent SC using PolyVinyliDeneFluoride mesh loaded with Fe3 O4 particles. Tailored anterior and posterior mesh flaps were sutured to the respective vaginal walls, uniting at the apex...
February 11, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29451495/perceptually-aware-image-retargeting-for-mobile-devices
#7
Yinzuo Zhou, Luming Zhang, Chao Zhang, Ping Li, Xuelong Li
Retargeting aims at adapting an original high-resolution photograph/video to a low-resolution screen with an arbitrary aspect ratio. Conventional approaches are generally based on desktop PCs, since the computation might be intolerable for mobile platforms (especially when retargeting videos). Typically, only low-level visual features are exploited, and human visual perception is not well encoded. In this paper, we propose a novel retargeting framework that rapidly shrinks a photograph/video by leveraging human gaze behavior...
May 2018: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29448387/pressure-evolution-and-deformation-of-confined-granular-media-during-pneumatic-fracturing
#8
Fredrik K Eriksen, Renaud Toussaint, Antoine Léo Turquet, Knut J Måløy, Eirik G Flekkøy
By means of digital image correlation, we experimentally characterize the deformation of a dry granular medium confined inside a Hele-Shaw cell due to air injection at a constant overpressure high enough to deform it (from 50 to 250 kPa). Air injection at these overpressures leads to the formation of so-called pneumatic fractures, i.e., channels empty of beads, and we discuss the typical deformations of the medium surrounding these structures. In addition we simulate the diffusion of the fluid overpressure into the medium, comparing it with the Laplacian solution over time and relating pressure gradients with corresponding granular displacements...
January 2018: Physical Review. E
https://www.readbyqxmd.com/read/29446235/quantitative-evaluation-of-the-performance-of-different-deformable-image-registration-algorithms-in-helical-axial-and-cone-beam-ct-images-using-a-mobile-phantom
#9
Imad Ali, Nesreen Alsbou, Justin Jaskowiak, Salahuddin Ahmad
The goal of this project is to investigate quantitatively the performance of different deformable image registration algorithms (DIR) with helical (HCT), axial (ACT), and cone-beam CT (CBCT). The variations in the CT-number values and lengths of well-known targets moving with controlled motion were evaluated. Four DIR algorithms: Demons, Fast-Demons, Horn-Schunck and Lucas-Kanade were used to register intramodality CT images of a mobile phantom scanned with different imaging techniques. The phantom had three water-equivalent targets inserted in a low-density foam with different lengths (10-40 mm) and moved with adjustable motion amplitudes (0-20 mm) and frequencies (0-0...
February 15, 2018: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29443903/qlog-solar-cell-mode-photodiode-logarithmic-cmos-pixel-using-charge-compression-and-readout
#10
Yang Ni
In this paper, we present a new logarithmic pixel design currently under development at New Imaging Technologies SA (NIT). This new logarithmic pixel design uses charge domain logarithmic signal compression and charge-transfer-based signal readout. This structure gives a linear response in low light conditions and logarithmic response in high light conditions. The charge transfer readout efficiently suppresses the reset (KTC) noise by using true correlated double sampling (CDS) in low light conditions. In high light conditions, thanks to charge domain logarithmic compression, it has been demonstrated that 3000 electrons should be enough to cover a 120 dB dynamic range with a mobile phone camera-like signal-to-noise ratio (SNR) over the whole dynamic range...
February 14, 2018: Sensors
https://www.readbyqxmd.com/read/29443058/two-photon-intravital-imaging-of-leukocytes-during-the-immune-response-in-lipopolysaccharide-treated-mouse-liver
#11
Sang A Park, Young Ho Choe, Sung Hwan Lee, Young-Min Hyun
Sepsis is a type of severe infection that can cause organ failure and tissue damage. Although the mortality and morbidity rates associated with sepsis are extremely high, no direct treatment or organ-related mechanism has been examined in detail in real time. The liver is the key organ that manages toxins and infections in the human body. Herein, we aimed to perform intravital imaging of mouse liver after induction of endotoxemia in order to track the motility of immune cells, such as neutrophils and liver capsular macrophages (LCMs)...
February 6, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29443053/neuroimaging-field-methods-using-functional-near-infrared-spectroscopy-nirs-neuroimaging-to-study-global-child-development-rural-sub-saharan-africa
#12
Kaja K Jasińska, Sosthène Guei
Portable neuroimaging approaches provide new advances to the study of brain function and brain development with previously inaccessible populations and in remote locations. This paper shows the development of field functional Near Infrared Spectroscopy (fNIRS) imaging to the study of child language, reading, and cognitive development in a rural village setting of Côte d'Ivoire. Innovation in methods and the development of culturally appropriate neuroimaging protocols allow a first-time look into the brain's development and children's learning outcomes in understudied environments...
February 2, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29442833/hexamethyldisilazane-removal-with-mesoporous-materials-prepared-from-calcium-fluoride-sludge
#13
Ching-Yang Kao, Min-Fa Lin, Nhat-Thien Nguyen, Hsiao-Hsin Tsai, Luh-Maan Chang, Po-Han Chen, Chang-Tang Chang
A large amount of calcium fluoride sludge is generated by the semiconductor industry every year. It also requires a high amount of fuel consumption using rotor concentrators and thermal oxidizers to treat VOCs. The mesoporous adsorbent prepared by calcium fluoride sludge was used for VOCs treatment. The semiconductor industry employs HMDS to promote the adhesion of photo-resistant material to oxide(s) due to the formation of silicon dioxide, which blocks porous adsorbents. The adsorption of HMDS (Hexamethyldisiloxane) was tested with mesoporous silica materials synthesized from calcium fluoride (CF-MCM)...
May 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29437720/uterine-fibroid-or-ovarian-fibroma-importance-of-comprehensive-preoperative-consent-taking-to-include-unexpected-findings-with-management-implications
#14
Lee Koon Kwek, Wei-Wei Wee-Stekly, Su Min Bernard Chern
A 35-year-old woman presented with an abdominal mass found incidentally on an ultrasound scan. On examination, the uterus was mobile and 14 weeks in size. Further imaging showed a large subserosal pedunculated fibroid, and she was counselled for laparoscopic myomectomy, morcellation in a bag, kept in open view. Intraoperatively, the mass was noted to be arising from the right ovarian ligament instead of the uterus, and decision was made to convert to open surgery. This case highlights important issues of consent-taking preoperatively and critical points to note regarding change in operative consent intraoperatively...
February 7, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29434237/unraveling-the-efficiency-limiting-morphological-issues-of-the-perylene-diimide-based-non-fullerene-organic-solar-cells
#15
Ranbir Singh, Sanjaykumar R Suranagi, Jaewon Lee, Hansol Lee, Min Kim, Kilwon Cho
Herein we report a comparative morphological analysis of the perylene diimide (PDI)- and fullerene-based organic solar cells (OSCs) to identify the factors responsible for low performance of PDI-based devices. A PDI derivative, bis-PDI, and a fullerene derivative, PC70BM, are mixed with an efficient polymer donor, PffBT4T-2OD. The large disparity in power conversion efficiencies (PCEs) of OSCs composed of PffBT4T-2OD:bis-PDI (PCE = 5.18%) and PffBT4T-2OD:PC70BM (PCE = 10.19%) observed are attributed to differences in the nanostructural motif of bulk heterojunction (BHJ) morphologies of these blend systems...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29432395/utility-of-supine-lateral-radiographs-for-assessment-of-lumbar-segmental-instability-in-degenerative-lumbar-spondylolisthesis
#16
Sandip P Tarpada, Woojin Cho, Foster Chen, Louis Amorosa
STUDY DESIGN: Retrospective chart review OBJECTIVE.: To determine whether supine lateral radiographs increase the amount of segmental instability visualized in single-level lumbar degenerative spondylolisthesis, when compared to traditional lateral flexion-extension radiographs. We hypothesized that supine radiographs increase the amount of segmental instability seen in single-level lumbar spondylolisthesis when compared to flexion-extension. SUMMARY OF BACKGROUND DATA: Accurate evaluation of segmental instability is critical to the management of lumbar spondylolisthesis...
February 9, 2018: Spine
https://www.readbyqxmd.com/read/29431856/cerebral-embolization-silent-cerebral-infarction-and-neurocognitive-decline-after-thoracic-endovascular-aortic-repair
#17
A H Perera, N Rudarakanchana, L Monzon, C D Bicknell, B Modarai, O Kirmi, T Athanasiou, M Hamady, R G Gibbs
BACKGROUND: Silent cerebral infarction is brain injury detected incidentally on imaging; it can be associated with cognitive decline and future stroke. This study investigated cerebral embolization, silent cerebral infarction and neurocognitive decline following thoracic endovascular aortic repair (TEVAR). METHODS: Patients undergoing elective or emergency TEVAR at Imperial College Healthcare NHS Trust and Guy's and St Thomas' NHS Foundation Trust between January 2012 and April 2015 were recruited...
February 12, 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29429094/bacterial-chemoreceptor-imaging-at-high-spatiotemporal-resolution-using-photoconvertible-fluorescent-proteins
#18
Jacopo Solari, Francois Anquez, Katharina M Scherer, Thomas S Shimizu
We describe two methods for high-resolution fluorescence imaging of the positioning and mobility of E. coli chemoreceptors fused to photoconvertible fluorescent proteins. Chemoreceptors such as Tar and Tsr are transmembrane proteins expressed at high levels (thousands of copies per cell). Together with their cognate cytosolic signaling proteins, they form clusters on the plasma membrane. Theoretical models imply that the size of these clusters is an important parameter for signaling, and recent PALM imaging has revealed a broad distribution of cluster sizes...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29428263/evidence-based-diagnosis-and-management-of-chronic-subdural-hematoma-a-review-of-the-literature
#19
REVIEW
Vikram Mehta, Stephen C Harward, Eric W Sankey, Gautam Nayar, Patrick J Codd
Chronic subdural hematomas are encapsulated blood collections within the dural border cells with characteristic outer "neomembranes". Affected patients are more often male and typically above the age of 70. Imaging shows crescentic layering of fluid in the subdural space on a non-contrast computed tomography (CT) scan, best appreciated on sagittal or coronal reformats. Initial medical management involves reversing anticoagulant/antiplatelet therapies, and often initiation of anti-epileptic drugs (AEDs). Operative interventions, such as twist-drill craniostomy (TDC), burr-hole craniostomy (BHC), and craniotomy are indicated if imaging implies compression (maximum fluid collection thickness >1 cm) or the patient is symptomatic...
February 7, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29426601/from-quality-markers-to-data-mining-and-intelligence-assessment-a-smart-quality-evaluation-strategy-for-traditional-chinese-medicine-based-on-quality-markers
#20
Gang Bai, Tiejun Zhang, Yuanyuan Hou, Guoyu Ding, Min Jiang, Guoan Luo
BACKGROUND: The quality of traditional Chinese medicine (TCM) forms the foundation of its clinical efficacy. The standardization of TCM is the most important task of TCM modernization. In recent years, there has been great progress in the quality control of TCM. However, there are still many issues related to the current quality standards, and it is difficult to objectively evaluate and effectively control the quality of TCM. PURPOSE: To face these challenge, we summarized the current quality marker (Q-marker) research based on its characteristics and benefits, and proposed a reasonable and intelligentized quality evaluation strategy for the development and application of Q-markers...
January 31, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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