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Computer Visual Syndrome

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https://www.readbyqxmd.com/read/30049430/recurrent-diffuse-large-b-cell-lymphoma-presenting-with-pancoast-syndrome-a-rare-cause-of-radicular-neck-pain-in-the-emergency-department
#1
Matthew S Correia, Richard F Clark
BACKGROUND: Pancoast syndrome is an uncommon complication of apical lung tumors. Symptoms include pain, brachial plexopathy, and Horner's syndrome, and are the result of extrinsic compression of tissues within the thoracic inlet. Lymphoma is a very rare etiology. CASE REPORT: We describe the presentation of a 59-year-old male with recurrent diffuse large B-cell lymphoma presenting with Pancoast syndrome. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Cancer is an uncommon cause of radicular neck pain but should be considered in the differential, particularly when constitutional complaints are also present...
July 23, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/30047890/language-model-assisted-and-icon-based-communication-through-a-brain-computer-interface-with-different-presentation-paradigms
#2
Asieh Ahani, Mohammad Moghadamfalahi, Deniz Erdogmus
Augmentative and alternative communication (AAC) is typically used by people with severe speech and physical disabilities (SSPI) and is one of the main application areas for brain computer interface (BCI) technology. The target population includes people with cerebral palsy (CP), amyotrophic lateral sclerosis (ALS) and locked-in-syndrome (LIS). Word-based AAC systems are mainly faster than letter-based counterparts and are usually supplemented by icons to aid the users. Those iconbased AAC systems that use binary signaling methods such as single click can convert into a single input BCI systems such as ERP detection...
July 25, 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/30034284/visual-detection-of-regional-brain-hypometabolism-in-cognitively-impaired-patients-is-independent-of-positron-emission-tomography-magnetic-resonance-attenuation-correction-method
#3
Ana M Franceschi, Valentino Abballe, Roy A Raad, Aaron Nelson, Kimberly Jackson, James Babb, Thomas Vahle, Matthias Fenchel, Yiqiang Zhan, Gerardo Hermosillo Valadez, Timothy M Shepherd, Kent P Friedman
Fluorodeoxyglucose (FDG) positron emission tomography-magnetic resonance (PET/MR) is useful for the evaluation of cognitively-impaired patients. This study aims to assess two different attenuation correction (AC) methods (Dixon-MR and atlas-based) versus index-standard computed tomography (CT) AC for the visual interpretation of regional hypometabolism in patients with cognitive impairment. Two board-certified nuclear medicine physicians blindly scored brain region FDG hypometabolism as normal versus hypometabolic using two-dimensional (2D) and 3D FDG PET/MR images generated by MIM software...
July 2018: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/30019795/priorities-to-overcome-barriers-impacting-data-science-application-in-emergency-care-research
#4
Michael A Puskarich, Clif Callaway, Robert Silbergleit, Jesse M Pines, Ziad Obermeyer, David W Wright, Renee Y Hsia, Manish N Shah, Andrew A Monte, Alexander T Limkakeng, Zachary F Meisel, Phillip D Levy
For a variety of reasons including cheap computing, widespread adoption of electronic medical records, digitalization of imaging and biosignals, and rapid development of novel technologies, the amount of health care data being collected, recorded, and stored is increasing at an exponential rate. Yet despite these advances, methods for the valid, efficient, and ethical utilization of these data remain underdeveloped. Emergency care research, in particular, poses several unique challenges in this rapidly evolving field...
July 18, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/30017608/coronary-plaque-characteristics-in-computed-tomography-and-2-year-outcomes-the-predict-study
#5
Hideya Yamamoto, Yasuki Kihara, Toshiro Kitagawa, Norihiko Ohashi, Eiji Kunita, Yoshitaka Iwanaga, Kazuhiro Kobuke, Shunichi Miyazaki, Tomohiro Kawasaki, Shinichiro Fujimoto, Hiroyuki Daida, Takashi Fujii, Aki Sato, Tomokazu Okimoto, Sachio Kuribayashi
BACKGROUND: Coronary computed tomography angiography (CCTA) not only provides information regarding luminal stenoses but also allows for visualization of mural atheromatous changes (coronary plaques). OBJECTIVE: We sought to elucidate whether plaques seen on CCTA enable prediction of 2-year outcomes in patients with suspected and known coronary artery disease (CAD). METHODS: Of 3015 patients who underwent CCTA, the images and 2-year clinical courses of 2802 patients were independently analyzed...
July 7, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/30001565/shunt-dependency-syndrome-after-cyst-peritoneal-shunt-resolved-by-keyhole-microsurgical-cyst-resection-two-case-reports-and-literature-review
#6
Fangyong Dong, Zhen Wang, Yakun Li, Zirong Chen, Suojun Zhang, Feng Wan
OBJECTIVE:  Shunt dependency syndrome after cyst-peritoneal (CP) shunt is a rare but serious complication which leads to increased intracranial pressure and neurological deficit. The possible mechanism still remains in controversy. We present our experience on the treatment of the complication and attempt to find a better therapy strategy for the complication. METHODS:  Two children with middle fossa arachnoid cysts underwent CP shunt with fixed pressure catheters at an opening pressure of 7 cmH2 O and then developed dependency syndrome...
July 12, 2018: Neuropediatrics
https://www.readbyqxmd.com/read/29993355/a-late-complication-occurring-due-to-tacrolimus-after-liver-transplant-posterior-reversible-encephalopathy-syndrome
#7
Sertaç Usta, Koray Karabulut
Posterior reversible encephalopathy syndrome is a rare condition of the central nervous system that may occur in adults as well as in children. Clinically, it presents with mental status changes, visual loss, headaches, seizures, or coma. The diagnosis of posterior reversible encephalopathy syndrome is based on the typical appearance in occipital and parietal lobes in radiologic imaging studies, such as computed tomography or magnetic resonance imaging of the brain, which exhibit the typical appearance due to vasogenic edema...
July 11, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29969779/a-novel-mutation-of-slc19a2-in-a-chinese-zhuang-ethnic-family-with-thiamine-responsive-megaloblastic-anemia
#8
Xiaoying Xian, Lin Liao, Wei Shu, Hongtao Li, Yuanyuan Qin, Jie Yan, Jianming Luo, Fa-Quan Lin
BACKGROUND/AIMS: Thiamine-responsive megaloblastic anemia syndrome is a rare autosomal recessive disorder resulting from mutations in SLC19A2, and is mainly characterized by megaloblastic anemia, diabetes, and progressive sensorineural hearing loss. METHODS: We study a Chinese Zhuang ethnicity family with thiamine-responsive megaloblastic anemia. The proband of the study presented with anemia and diabetes, similar to his late brother, as well as visual impairment...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29963645/digital-eye-strain-prevalence-measurement-and-amelioration
#9
REVIEW
Amy L Sheppard, James S Wolffsohn
Digital device usage has increased substantially in recent years across all age groups, so that extensive daily use for both social and professional purposes is now normal. Digital eye strain (DES), also known as computer vision syndrome, encompasses a range of ocular and visual symptoms, and estimates suggest its prevalence may be 50% or more among computer users. Symptoms fall into two main categories: those linked to accommodative or binocular vision stress, and external symptoms linked to dry eye. Although symptoms are typically transient, they may be frequent and persistent, and have an economic impact when vocational computer users are affected...
2018: BMJ open ophthalmology
https://www.readbyqxmd.com/read/29950161/visual-subcircuit-specific-dysfunction-and-input-specific-mispatterning-in-the-superior-colliculus-of-fragile-x-mice
#10
Rachel B Kay, Nicole A Gabreski, Jason W Triplett
BACKGROUND: Sensory processing deficits are frequently co-morbid with neurodevelopmental disorders. For example, patients with fragile X syndrome (FXS), caused by a silencing of the FMR1 gene, exhibit impairments in visual function specific to the dorsal system, which processes motion information. However, the developmental and circuit mechanisms underlying this deficit remain unclear. Recently, the superior colliculus (SC), a midbrain structure regulating head and eye movements, has emerged as a model for dissecting visual circuit development and function...
June 28, 2018: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/29903350/acute-limited-intimal-tears-of-the-thoracic-aorta
#11
Anne S Chin, Martin J Willemink, Aya Kino, Virginia Hinostroza, Anna M Sailer, Michael P Fischbein, R Scott Mitchell, Gerald J Berry, D Craig Miller, Dominik Fleischmann
BACKGROUND: Limited intimal tears (LITs) of the aorta (Class 3 dissection variant) are the least common form of aortic pathology in patients presenting with acute aortic syndrome (AAS). LITs are difficult to detect on imaging and may be underappreciated. OBJECTIVES: This study sought to describe the frequency, pathology, treatment, and outcome of LITs compared with other AAS, and to demonstrate that LITs can be detected pre-operatively by contemporary imaging. METHODS: The authors retrospectively reviewed 497 patients admitted for 513 AAS events at a single academic aortic center between 2003 and 2012...
June 19, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29857980/goldenhar-syndrome-oculo-auriculo-vertebral-spectrum-findings-on-cone-beam-computed-tomography-3-case-reports
#12
Igor Maryanchik, Madhu K Nair
BACKGROUND: Goldenhar syndrome, also known as oculo-auriculo-vertebral spectrum, is a variant of hemifacial microsomia, a congenital condition affecting primarily aural, oral, and mandibular development, with vertebral anomalies, ocular abnormalities, and epibulbar dermoids. As a complex and heterogeneous condition, this disorder varies from mild to severe, and involvement is unilateral in many cases, but bilateral involvement is also known to occur. It presents several complex problems in treatment, requiring an integrated, multidisciplinary approach...
May 7, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29796585/posterior-reversible-leukoencephalopathy-syndrome-pres-after-kidney-transplantation-a-case-report
#13
Carla Beatriz Davi, Bruna Pinheiro de Moraes, Bruno Fontes Lichtenfels, João Batista Saldanha de Castro Filho, Marcelle Maria Portal, Rosangela Munhoz Montenegro, Roberto Ceratti Manfro
INTRODUCTION: Posterior reversible leukoencephalopathy syndrome (PRES) was first described by Hinchey in 1996. The syndrome is characterized by altered level of consciousness, headache, visual changes, and seizures associated with a vasogenic edema of the white matter that occurs predominantly in the occipital and parietal lobes. Imaging tests such as computed tomography (CT) and especially magnetic resonance imaging (MRI) support the diagnosis. CASE REPORT: We report a case of a 48-year-old female patient who underwent a deceased donor kidney transplant and received tacrolimus as a part of the immunosuppressive regimen...
January 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29774379/-agenesis-of-the-corpus-callosum
#14
REVIEW
J M Lieb, F J Ahlhelm
CLINICAL ISSUE: Agenesis of the corpus callosum is reported to have an incidence of about 1:4000 live births. In 30-45% of cases, genetic etiologies can be identified, e. g., 10% chromosomal anomalies and 20-35% genetic syndromes. Environmental factors like fetal alcohol syndrome are also known to be prone to callosal agenesis. Callosal agenesis can be complete or partial and can be isolated or associated with other central nervous system (CNS) anomalies (e. g., cortical developmental disorders, callosal lipoma, intracranial cysts) or extra-CNS anomalies (e...
July 2018: Der Radiologe
https://www.readbyqxmd.com/read/29752666/lung-water-assessment-from-gravimetry-to-wearables
#15
Frederic Michard
Several techniques are now available to detect and quantify pulmonary edema, from the laboratory postmortem method (gravimetry) to non-invasive wearable sensors. In critically ill patients with adult respiratory distress syndrome (ARDS), computed tomography scans are often performed to visualize lung lesions and quantify lung aeration, but their value seems somewhat limited to quantify pulmonary edema on a routine basis and of course to track changes with therapy. In this context, transpulmonary thermodilution is a convenient technique...
May 11, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29738026/posterior-reversible-leukoencephalopathy-syndrome-pres-after-kidney-transplantation-a-case-report
#16
Carla Beatriz Davi, Bruna Pinheiro de Moraes, Bruno Fontes Lichtenfels, João Batista Saldanha de Castro Filho, Marcelle Maria Portal, Rosangela Munhoz Montenegro, Roberto Ceratti Manfro
INTRODUCTION: Posterior reversible leukoencephalopathy syndrome (PRES) was first described by Hinchey in 1996. The syndrome is characterized by altered level of consciousness, headache, visual changes, and seizures associated with a vasogenic edema of the white matter that occurs predominantly in the occipital and parietal lobes. Imaging tests such as computed tomography (CT) and especially magnetic resonance imaging (MRI) support the diagnosis. CASE REPORT: We report a case of a 48-year-old female patient who underwent a deceased donor kidney transplant and received tacrolimus as a part of the immunosuppressive regimen...
April 19, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29681801/anatomy-based-networks-and-topology-alteration-in-seizure-related-cognitive-outcomes
#17
REVIEW
Qian Wu, Charlie W Zhao, Zhe Long, Bo Xiao, Li Feng
Epilepsy is a paroxysmal neurological disorder characterized by recurrent and unprovoked seizures affecting approximately 50 million people worldwide. Cognitive dysfunction induced by seizures is a severe comorbidity of epilepsy and epilepsy syndromes and reduces patients' quality of life. Seizures, along with accompanying histopathological and pathophysiological changes, are associated with cognitive comorbidities. Advances in imaging technology and computing allow anatomical and topological changes in neural networks to be visualized...
2018: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29677200/empirical-mode-decomposition-processing-to-improve-multifocal-visual-evoked-potential-signal-analysis-in-multiple-sclerosis
#18
Luis de Santiago, Eva Sánchez-Morla, Román Blanco, Juan Manuel Miguel, Carlos Amo, Miguel Ortiz Del Castillo, Almudena López, Luciano Boquete
OBJECTIVE: To study the performance of multifocal-visual-evoked-potential (mfVEP) signals filtered using empirical mode decomposition (EMD) in discriminating, based on amplitude, between control and multiple sclerosis (MS) patient groups, and to reduce variability in interocular latency in control subjects. METHODS: MfVEP signals were obtained from controls, clinically definitive MS and MS-risk progression patients (radiologically isolated syndrome (RIS) and clinically isolated syndrome (CIS))...
2018: PloS One
https://www.readbyqxmd.com/read/29643815/mechanical-characterization-of-the-vessel-wall-by-data-assimilation-of-intravascular-ultrasound-studies
#19
Gonzalo D Maso Talou, Pablo J Blanco, Gonzalo D Ares, Cristiano Guedes Bezerra, Pedro A Lemos, Raúl A Feijóo
Atherosclerotic plaque rupture and erosion are the most important mechanisms underlying the sudden plaque growth, responsible for acute coronary syndromes and even fatal cardiac events. Advances in the understanding of the culprit plaque structure and composition are already reported in the literature, however, there is still much work to be done toward in-vivo plaque visualization and mechanical characterization to assess plaque stability, patient risk, diagnosis and treatment prognosis. In this work, a methodology for the mechanical characterization of the vessel wall plaque and tissues is proposed based on the combination of intravascular ultrasound (IVUS) imaging processing, data assimilation and continuum mechanics models within a high performance computing (HPC) environment...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29614297/eeg-based-neglect-assessment-a-feasibility-study
#20
Aya Khalaf, Jessica Kersey, Safaa Eldeeb, Gazihan Alankus, Emily Grattan, Laura Waterstram, Elizabeth Skidmore, Murat Akcakaya
BACKGROUND: Spatial neglect (SN) is a neuropsychological syndrome that impairs automatic attention orienting to stimuli in the contralesional visual space of stroke patients. SN is commonly assessed using paper and pencil tests. Recently, computerized tests have been proposed to provide a dynamic assessment of SN. However, both paper- and computer-based methods have limitations. NEW METHOD: Electroencephalography (EEG) shows promise for overcoming the limitations of current assessment methods...
June 1, 2018: Journal of Neuroscience Methods
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