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https://www.readbyqxmd.com/read/29332093/structure-function-correlation-in-hemianopic-vision-loss-in-children-aged-3-6-years-using-oct-and-svop-and-comparison-with-adult-eyes
#1
Wadim Bowl, Robert Knobloch, Silke Schweinfurth, Kerstin Holve, Knut Stieger, Birgit Lorenz
PURPOSE: To correlate visual field assessment with saccadic vector optokinetic perimetry (SVOP) in children with ganglion cell loss due to anterior pathway pathologies resulting in hemianopic visual field defects measured with optical coherence tomography (OCT). METHODS: 5 young (aged 3-6 years) and 5 adult patients with hemianopia, 10 healthy preschoolers (mean age 4.4 years), and 10 healthy adults (mean age 25.3 years) were tested with SVOP and OCT (focusing on the ganglion cell layer, GCL+)...
January 13, 2018: Ophthalmic Research
https://www.readbyqxmd.com/read/29332041/in-vivo-visualization-of-tau-accumulation-microglial-activation-and-brain-atrophy-in-a-mouse-model-of-tauopathy-rtg4510
#2
Ai Ishikawa, Masaki Tokunaga, Jun Maeda, Takeharu Minamihisamatsu, Masafumi Shimojo, Hiroyuki Takuwa, Maiko Ono, Ruiqing Ni, Shigeki Hirano, Satoshi Kuwabara, Bin Ji, Ming-Rong Zhang, Ichio Aoki, Tetsuya Suhara, Makoto Higuchi, Naruhiko Sahara
BACKGROUND: Tau imaging using PET is a promising tool for the diagnosis and evaluation of tau-related neurodegenerative disorders, but the relationship among PET-detectable tau, neuroinflammation, and neurodegeneration is not yet fully understood. OBJECTIVE: We aimed to elucidate sequential changes in tau accumulation, neuroinflammation, and brain atrophy by PET and MRI in a tauopathy mouse model. METHODS: rTg4510 transgenic (tg) mice expressing P301L mutated tau and non-tg mice were examined with brain MRI and PET imaging (analyzed numbers: tg = 17, non-tg = 13; age 2...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29331846/functional-neuroimaging-in-rasmussen-syndrome
#3
Ichiro Kuki, Kazumi Matsuda, Yuko Kubota, Tetsuhiro Fukuyama, Yukitoshi Takahashi, Yushi Inoue, Haruo Shintaku
PURPOSE: For a diagnosis of Rasmussen syndrome (RS), clinical course together with electroencephalography (EEG) and magnetic resonance imaging (MRI) findings are considered important, but there are few reports on functional neuroimaging. This study investigated cerebral blood flow (CBF)-single photon emission computed tomography (SPECT), central benzodiazepine receptor (BZR)-SPECT, and fluorine-18 fluorodeoxy glucose-positron emission tomography (FDG-PET) in RS patients, and correlated neuroimaging results with MRI and pathological findings...
January 5, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29328442/identification-of-differentially-expressed-genes-and-regulatory-relationships-in-huntington-s-disease-by-bioinformatics-analysis
#4
Xiaoyu Dong, Shuyan Cong
Huntington's disease (HD) is an inherited, progressive neurodegenerative disease caused by a CAG expansion in the huntingtin (HTT) gene; various dysfunctions of biological processes in HD have been proposed. However, at present the exact pathogenesis of HD is not fully understood. The present study aimed to explore the pathogenesis of HD using a computational bioinformatics analysis of gene expression. GSE11358 was downloaded from the Gene Expression Omnibus andthe differentially expressed genes (DEGs) in the mutant HTT knock‑in cell model STHdhQ111/Q111 were predicted...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29327116/evaluation-of-hemodynamic-imaging-findings-of-hypervascular-hepatocellular-carcinoma-comparison-between-dynamic-contrast-enhanced-magnetic-resonance-imaging-using-radial-volumetric-imaging-breath-hold-examination-with-k-space-weighted-image-contrast-reconstruction
#5
Masahiro Kurozumi, Yasunari Fujinaga, Yoshihiro Kitou, Akira Yamada, Ayumi Ohya, Yasuo Adachi, Yoshinori Tsukahara, Marcel D Nickel, Katsuya Maruyama, Takeshi Uehara, Shin-Ichi Miyagawa, Masumi Kadoya
PURPOSE: To compare the visualization of hemodynamic imaging findings of hypervascular hepatocellular carcinoma (HCC) on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) using radial volumetric imaging breath-hold examination with k-space-weighted image contrast reconstruction (r-VIBE-KWIC) versus dynamic computed tomography during hepatic arteriography (dyn-CTHA). MATERIALS AND METHODS: We retrospectively reviewed the databases of preoperative DCE-MRI using r-VIBE-KWIC, dyn-CTHA, and postoperative pathology of resected specimens...
January 11, 2018: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29327033/disorganization-of-inner-retina-and-outer-retinal-morphology-in-diabetic-macular-edema
#6
Radha Das, Gareth Spence, Ruth E Hogg, Michael Stevenson, Usha Chakravarthy
Importance: In diabetic macular edema (DME), identification of baseline markers on spectral-domain optical coherence tomography (SD-OCT) and their association with severity of diabetic retinopathy (DR) might aid in disease management and the design of future trials. Objective: To examine associations between DR severity, retinal morphology on SD-OCT, and visual acuity in participants with DME. Design, Setting, and Participants: This cross-sectional observational case series was conducted at a single tertiary care referral center...
January 11, 2018: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29324913/the-detection-of-endocarditis-post-implantation-grafts-arteritis-and-other-related-disorders-by-18f-fdg-pet-ct
#7
Jelena Šaponjski, Dragana Šobić-Šaranović, Strahinja Odalović, Milica Stojiljković, Jelena Pantović, Nebojša Petrović, Isidora Grozdić-Milojević, Vera Artiko
INTRODUCTION: Positron emission tomography with computed tomography (18F-FDG PET/CT) is a nuclear medicine diagnostic method which, unlike other technological modalities that asses anatomical features, detects increased glucose metabolism inside the cells, thus is very helpful in diagnosing cardiovascular infection and inflammation and also in therapy planning. AIM: Aim of this study was to assess the significance of 18F-FDG PET/CT in detection of an active disease in patients with infection and inflammation of cardiovascular system...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29324591/visualization-from-intraoperative-swept-source-microscope-integrated-optical-coherence-tomography-in-vitrectomy-for-complications-of-proliferative-diabetic-retinopathy
#8
Hesham Gabr, Xi Chen, Oscar M Zevallos-Carrasco, Christian Viehland, Alexandria Dandrige, Neeru Sarin, Tamer H Mahmoud, Lejla Vajzovic, Joseph A Izatt, Cynthia A Toth
PURPOSE: To evaluate the use of live volumetric (4D) intraoperative swept-source microscope-integrated optical coherence tomography in vitrectomy for proliferative diabetic retinopathy complications. METHODS: In this prospective study, we analyzed a subgroup of patients with proliferative diabetic retinopathy complications who required vitrectomy and who were imaged by the research swept-source microscope-integrated optical coherence tomography system. In near real time, images were displayed in stereo heads-up display facilitating intraoperative surgeon feedback...
January 10, 2018: Retina
https://www.readbyqxmd.com/read/29323925/the-responsiveness-of-patient-reported-outcome-tools-in-shoulder-surgery-is-dependent-on-the-underlying-pathological-condition
#9
R Zackary Unger, Jeremy M Burnham, Lee Gammon, Chaitu S Malempati, Cale A Jacobs, Eric C Makhni
BACKGROUND: Given the high number of available patient-reported outcome (PRO) tools for patients undergoing shoulder surgery, comparative information is necessary to determine the most relevant forms to incorporate into clinical practice. PURPOSE: To determine the utilization and responsiveness of common PRO tools in studies involving patients undergoing arthroscopic rotator cuff repair or operative management of glenohumeral instability. STUDY DESIGN: Systematic review...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29323067/modified-cajal-s-trichrome-stain-as-a-diagnostic-aid-in-the-study-of-epithelial-pathology
#10
Karpagaselvi Sanjai, Anjum Baker, Lokesh Papiah Reddy, Bhavna Pandey
BACKGROUND: Diagnosis of initial epithelial pathology maybe difficult in Squamous Cell Carcinoma (SCC), Carcinoma In Situ and other atypical epithelial malignancies, under routine Haematoxylin and Eosin (H and E) stain. The detection of minor basement membrane alterations in doubtful cases is both time consuming and confusing. AIMS: To evaluate efficacy of Modified Cajal's Trichrome Stain (CTS) in relation to Haematoxylin and Eosin for study of epithelial dysplasia, carcinoma in situ, micro invasive SCC, frank SCC, and SCC in lymph nodes...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321969/the-two-year-progression-of-structural-and-functional-cerebral-mri-in-amyotrophic-lateral-sclerosis
#11
R A L Menke, M Proudfoot, K Talbot, M R Turner
MRI has emerged as one of several urgently needed candidate disease progression biomarkers for the neurodegenerative disorder amyotrophic lateral sclerosis (ALS), not least due to its unique ability to non-invasively assess structural and functional cerebral pathology. We sought to identify the extent of detectable change in cerebral MRI metrics over a more prolonged period. Analysis of multi-modal MRI data was performed in a cohort of sixteen patients (13 ALS and 3 with primary lateral sclerosis) in whom it was possible to acquire six-monthly images over two years...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29321681/in-vivo-monitoring-of-hair-cycle-stages-via-bioluminescence-imaging-of-hair-follicle-ng2-cells
#12
Yasuhisa Tamura, Kumi Takata, Asami Eguchi, Yosky Kataoka
Hair growth occurs periodically in a cycle that consists of three different phases: growth, regression, and resting. The length of each phase is regulated by both intrinsic and extrinsic factors throughout life, and influenced by physiological and pathological conditions. Elongation of the resting phase and shortening of the growth phase occur during physiological ageing and in baldness, respectively. In vivo discrimination of each phase of the hair cycle can be used to research for regeneration of hair follicles as well as to evaluate the efficacy of hair regrowth treatments in the same individual...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321483/extracellular-total-electrolyte-concentration-imaging-for-electrical-brain-stimulation-ebs
#13
Saurav Z K Sajib, Mun Bae Lee, Hyung Joong Kim, Eung Je Woo, Oh In Kwon
Techniques for electrical brain stimulation (EBS), in which weak electrical stimulation is applied to the brain, have been extensively studied in various therapeutic brain functional applications. The extracellular fluid in the brain is a complex electrolyte that is composed of different types of ions, such as sodium (Na+), potassium (K+), and calcium (Ca+). Abnormal levels of electrolytes can cause a variety of pathological disorders. In this paper, we present a novel technique to visualize the total electrolyte concentration in the extracellular compartment of biological tissues...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320750/the-many-faces-of-intestinal-tract-gastric-heterotopia-a-series-of-four-cases-highlighting-clinical-and-pathological-heterogeneity
#14
Aqsa Nasir, Stuart K Amateau, Sabina Khan, Ross W Simpson, Dale C Snover, Khalid Amin
Gastric heterotopia of the intestinal tract can have a diverse clinicopathologic presentation, resulting in a diagnostic dilemma. We present a series of four cases, two male and two female patients with age range of 31-82 year, found in the duodenum, jejunum, and transverse colon. The most common and rather unusual clinical presentation was iron deficiency anemia, seen in three cases, while one patient presented with abdominal pain. Endoscopically two cases were visualized as pedunculated polyps and two as sessile/plaques like lesions...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29318766/a-single-composition-architecture-based-nanoprobe-for-ratiometric-photoacoustic-imaging-of-glutathione-gsh-in-living-mice
#15
Chao Yin, Yufu Tang, Xiaozhen Li, Zhen Yang, Jie Li, Xiang Li, Wei Huang, Quli Fan
As one of the reduction species, glutathione (GSH) plays a tremendous role in regulating the homeostasis of redox state in living body. Accurate imaging of GSH in vivo is highly desired to provide a real-time visualization of physiological and pathological conditions while it is still a big challenge. Recently developed photoacoustic imaging (PAI) with high resolution and deep penetration characteristics is more promising for in vivo GSH detection. However, its application is dramatically limited by the difficult designation of photoacoustic probes with changeable near-infrared (NIR)-absorption under reductive activation...
January 10, 2018: Small
https://www.readbyqxmd.com/read/29317190/normal-pelvic-ultrasound-or-mri-does-not-rule-out-neoplasm-in-patients-with-gonadal-dysgenesis-and-y-chromosome-material
#16
Kristin M Ebert, Geri D Hewitt, Justin A Indyk, Katherine A McCracken, Leena Nahata, Venkata R Jayanthi
INTRODUCTION: Patients with gonadal dysgenesis (GD) with a Y chromosome have an increased risk of gonadal neoplasm. Few data exist on the ability of imaging to detect malignancy in intra-abdominal gonads in these patients. OBJECTIVE: We aimed to determine the correlation between preoperative imaging findings and gonadal pathology in GD patients with Y chromosome material. METHODS: A retrospective review was performed of patients with XY or XO/XY GD who underwent gonadectomy at our institution from 2003 to 2017...
December 23, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29317053/fear-of-movement-modulates-the-feedforward-motor-control-of-the-affected-limb-in-complex-regional-pain-syndrome-crps-a-single-case-study
#17
Michihiro Osumi, Masahiko Sumitani, Yuko Otake, Shu Morioka
Pain-related fear can exacerbate physical disability and pathological pain in complex regional pain syndrome (CRPS) patients. We conducted a kinematic analysis of grasping movements with a pediatric patient suffering from CRPS in an upper limb to investigate how pain-related fear affects motor control. Using a three-dimensional measurement system, we recorded the patient's movement while grasping three vertical bars of different diameters (thin, middle, thick) with the affected and intact hands. We analyzed the maximum grasp distance between the thumb and the index finger (MGD), the peak velocity of the grasp movement (PV), and the time required for the finger opening phase (TOP) and closing phase (TCP)...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29316474/spinal-versus-general-anesthesia-for-lumbar-spine-surgery-in-high-risk-patients-perioperative-hemodynamic-stability-complications-and-costs
#18
Michael Finsterwald, Marco Muster, Mazda Farshad, Andrea Saporito, Muriel Brada, José A Aguirre
OBJECTIVE: More stable perioperative hemodynamic conditions, lower costs and a lower perioperative complication rate were reported in young healthy patients undergoing lumbar spine surgery in spinal anesthesia (SA) compared to general anesthesia (GA). However, the benefits of SA in high risk patients (ASA≥II suffering from cardiovascular and/or pulmonary pathologies) undergoing this surgery are unclear. Our objective was to analyze whether SA leads to an improved perioperative hemodynamic stability and to a more cost-effective management compared to GA in high risk patients undergoing this surgery...
January 6, 2018: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/29313596/miaquant-a-novel-system-for-automatic-segmentation-measurement-and-localization-comparison-of-different-biomarkers-from-serialized-histological-slices
#19
Elena Casiraghi, Mara Cossa, Veronica Huber, Licia Rivoltini, Matteo Tozzi, Antonello Villa, Barbara Vergani
In the clinical practice, automatic image analysis methods quickly quantizing histological results by objective and replicable methods are getting more and more necessary and widespread. Despite several commercial software products are available for this task, they are very little flexible, and provided as black boxes without modifiable source code. To overcome the aforementioned problems, we employed the commonly used MATLAB platform to develop an automatic method, MIAQuant, for the analysis of histochemical and immunohistochemical images, stained with various methods and acquired by different tools...
November 2, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/29313181/intraoperative-neurophysiological-monitoring-during-spinal-surgery-technical-review-in-open-and-minimally-invasive-approaches
#20
REVIEW
Fabio Cofano, Francesco Zenga, Marco Mammi, Roberto Altieri, Nicola Marengo, Marco Ajello, Paolo Pacca, Antonio Melcarne, Carola Junemann, Alessandro Ducati, Diego Garbossa
Neurophysiological monitoring is of undoubted value for the intraoperative safety of neurosurgical procedures. Widely developed and used for cranial surgery, it is equally as effective, though perhaps less commonly employed, for spinal pathology. The most frequently used techniques for intraoperative monitoring during spinal surgery include somatosensory evoked potentials (SSEPs), motor evoked potentials (MEPs) and electromyography, which can either be spontaneous free-running (sEMG) or triggered (tEMG). The knowledge of the benefits and limitations of each modality is essential in optimising the value of intraoperative monitoring during spinal procedures...
January 8, 2018: Neurosurgical Review
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