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https://www.readbyqxmd.com/read/28100861/-a-case-of-intracranial-localized-castleman-s-disease-mimicking-convexity-meningioma
#1
Keisuke Ozono, Takashi Fujimoto, Makoto Hirose, Ichiro Kawahara, Kazuyoshi Uchihashi
A 68-year-old man presented with abnormal behavior and Todd's paralysis on the right side after having taken a bath. Computed tomography and magnetic resonance imaging revealed a tumor mimicking convexity meningioma that had a perifocal edema, although its mass was not very large. The patient underwent surgery, and full recovery was achieved following a total removal of the lesion. Pathohistological examination demonstrated an intermediate type of Castleman's disease. The final diagnosis was intracranial localized Castleman's disease because the results of the full physical examination and laboratory analyses were normal...
January 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28095900/post-stroke-dementia-a-comprehensive-review
#2
REVIEW
Milija D Mijajlović, Aleksandra Pavlović, Michael Brainin, Wolf-Dieter Heiss, Terence J Quinn, Hege B Ihle-Hansen, Dirk M Hermann, Einor Ben Assayag, Edo Richard, Alexander Thiel, Efrat Kliper, Yong-Il Shin, Yun-Hee Kim, SeongHye Choi, San Jung, Yeong-Bae Lee, Osman Sinanović, Deborah A Levine, Ilana Schlesinger, Gillian Mead, Vuk Milošević, Didier Leys, Guri Hagberg, Marie Helene Ursin, Yvonne Teuschl, Semyon Prokopenko, Elena Mozheyko, Anna Bezdenezhnykh, Karl Matz, Vuk Aleksić, DafinFior Muresanu, Amos D Korczyn, Natan M Bornstein
Post-stroke dementia (PSD) or post-stroke cognitive impairment (PSCI) may affect up to one third of stroke survivors. Various definitions of PSCI and PSD have been described. We propose PSD as a label for any dementia following stroke in temporal relation. Various tools are available to screen and assess cognition, with few PSD-specific instruments. Choice will depend on purpose of assessment, with differing instruments needed for brief screening (e.g., Montreal Cognitive Assessment) or diagnostic formulation (e...
January 18, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28095792/multi-contrast-brain-magnetic-resonance-image-super-resolution-using-the-local-weight-similarity
#3
Hong Zheng, Xiaobo Qu, Zhengjian Bai, Yunsong Liu, Di Guo, Jiyang Dong, Xi Peng, Zhong Chen
BACKGROUND: Low-resolution images may be acquired in magnetic resonance imaging (MRI) due to limited data acquisition time or other physical constraints, and their resolutions can be improved with super-resolution methods. Since MRI can offer images of an object with different contrasts, e.g., T1-weighted or T2-weighted, the shared information between inter-contrast images can be used to benefit super-resolution. METHODS: In this study, an MRI image super-resolution approach to enhance in-plane resolution is proposed by exploring the statistical information estimated from another contrast MRI image that shares similar anatomical structures...
January 17, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28094665/fdg-pet-reproducibility-in-tumor-bearing-mice-comparing-a-traditional-suv-approach-with-a-tumor-to-brain-tissue-ratio-approach
#4
Morten Busk, Ole L Munk, Steen Jakobsen, Jørgen Frøkiær, Jens Overgaard, Michael R Horsman
BACKGROUND: Current [F-18]-fluorodeoxyglucose positron emission tomography (FDG-PET) procedures in tumor-bearing mice typically includes fasting, anesthesia, and standardized uptake value (SUV)-based quantification. Such procedures may be inappropriate for prolonged multiscan experiments. We hypothesize that normalization of tumor FDG retention relative to a suitable reference tissue may improve accuracy as this method may be less susceptible to uncontrollable day-to-day changes in blood glucose levels, physical activity, or unnoticed imperfect tail vein injections...
January 17, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28093636/non-surgical-treatment-of-pubic-overload-and-groin-pain-in-amateur-football-players-a-prospective-double-blinded-randomised-controlled-study
#5
M Schöberl, L Prantl, O Loose, J Zellner, P Angele, F Zeman, M Spreitzer, M Nerlich, W Krutsch
PURPOSE: The incidence of groin pain in athletes is steadily increasing. Symptomatic pubic overload with groin pain and aseptic osteitis pubis represent well-known and frequently misdiagnosed overuse injuries in athletes. This study investigated the benefits of standardised non-surgical treatment for swift return-to-football. METHODS: In a prospective double-blinded controlled study, 143 amateur football players with groin pain as well as radiological signs and clinical symptoms of pubic overload were analysed for 1 year...
January 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28091825/preoperative-sport-improves-the-outcome-of-lumbar-disc-surgery-a-prospective-monocentric-cohort-study
#6
Anja Tschugg, Sara Lener, Sebastian Hartmann, Matthias Wildauer, Wolfgang N Löscher, Sabrina Neururer, Claudius Thomé
A lumbar disc herniation resulting in surgery may be an incisive event in a patient's everyday life. The patient's recovery after sequestrectomy may be influenced by several factors. There is evidence that regular physical activity can lower pain perception and improve the outcome after surgery. For this purpose, we hypothesized that patients performing regular sports prior to lumbar disc surgery might have less pain perception and disability thereafter. Fifty-two participants with a single lumbar disc herniation confirmed on MRI treated by a lumbar sequestrectomy were included in the trial...
January 13, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28081582/-expert-evidence-in-whiplash-injury
#7
Florin M Bucur, Martin Schwarze, Marcus Schiltenwolf
The assessment of cervical spine injuries is not a problem - provided full evidence of primary physical damage can be ensured. MRI examinations of the cervical spine carried out soon after the accident provide the best evidence. The assessment is more difficult if only clinical abnormalities are documented by the doctors after the accident in the diagnosis of cervical spine distortion, as functional results of this type are not specific and are also common in the general population. The legal rules of evidence must be taken into account in the summary assessment of the consequences of cervical spine injuries...
January 12, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28081561/a-novel-richardson-lucy-model-with-dictionary-basis-and-spatial-regularization-for-isolating-isotropic-signals
#8
Tiantian Xu, Yuanjing Feng, Ye Wu, Qingrun Zeng, Jun Zhang, Jianzhong He, Qichuan Zhuge
Diffusion-weighted magnetic resonance imaging is a non-invasive imaging method that has been increasingly used in neuroscience imaging over the last decade. Partial volume effects (PVEs) exist in sampling signal for many physical and actual reasons, which lead to inaccurate fiber imaging. We overcome the influence of PVEs by separating isotropic signal from diffusion-weighted signal, which can provide more accurate estimation of fiber orientations. In this work, we use a novel response function (RF) and the correspondent fiber orientation distribution function (fODF) to construct different signal models, in which case the fODF is represented using dictionary basis function...
2017: PloS One
https://www.readbyqxmd.com/read/28079960/successful-medical-management-of-a-domestic-longhair-cat-with-subdural-intracranial-empyema-and-multifocal-pneumonia
#9
Thomas J A Cardy, Richard Lam, Laureen M Peters, Philippa J McLaren, Màrian Matas Riera, Steven De Decker
OBJECTIVE: To describe a case of successful medical management of subdural intracranial empyema and multifocal pneumonia in a domestic longhaired cat. CASE SUMMARY: A 7-year-and-8-month-old male neutered domestic longhair cat presented with tachypnea, respiratory compromise, vestibular ataxia, obtundation, left-sided head tilt, and multiple cranial nerve deficits. Neuroanatomical localization was multifocal with central vestibular involvement. Magnetic resonance imaging of the head indicated diffuse subdural empyema, mainly affecting the middle cranial fossa and the right cerebrum...
January 12, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28078364/-ligament-injuries-of-fingers-and-thumbs
#10
R Schmitt
Degenerative and traumatic ligament lesions of the carpometacarpal joints frequently occur at the thumb ray, whereas the carpometacarpal amphiarthrosis of other finger rays are rarely affected. The metacarpophalangeal and interphalangeal joints of the thumb and fingers are stabilized by bilaterally running collateral ligaments and palmar plates. At the base of the metacarpophalangeal joints, several ligaments of the extensor hoods guide the extensor tendons and coordinate the fine motoric skills of phalangeal flexing and extending...
January 2017: Der Radiologe
https://www.readbyqxmd.com/read/28076977/combining-microfractures-autologous-bone-graft-and-autologous-matrix-induced-chondrogenesis-for-the-treatment-of-juvenile-osteochondral-talar-lesions
#11
Riccardo D'Ambrosi, Camilla Maccario, Chiara Ursino, Nicola Serra, Federico Giuseppe Usuelli
BACKGROUND: The purpose of this study was to evaluate the clinical and radiologic outcomes of patients younger than 20 years, treated with the arthroscopic-talus autologous matrix-induced chondrogenesis (AT-AMIC) technique and autologous bone graft for osteochondral lesion of the talus (OLT). METHODS: Eleven patients under 20 years (range 13.3-20.0) underwent the AT-AMIC procedure and autologous bone graft for OLTs. Patients were evaluated preoperatively (T0) and at 6 (T1), 12 (T2), and 24 (T3) months postoperatively, using the American Orthopaedic Foot & Ankle Society Ankle and Hindfoot (AOFAS) score, the visual analog scale and the SF-12 respectively in its Mental and Physical Component Scores...
January 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28074044/diabetic-myonecrosis-a-rare-complication-of-diabetes-mellitus-mimicking-deep-vein-thrombosis
#12
Himanshu K Khanna, Andrew C Stevens
BACKGROUND Diabetic myonecrosis is an uncommon complication of long-standing poorly controlled diabetes mellitus. It presents as acute non-traumatic swelling and pain of the lower extremity, which can mimic deep vein thrombosis (DVT). The clinical course is usually self-limiting and patients respond well to supportive medical therapy. CASE REPORT A 54-year-old male with past medical history of poorly controlled diabetes mellitus type II, hyperlipidemia, gastroesophageal reflux disease (GERD), and remote history of DVT presented to our emergency department with 2-week history of progressively worsening left calf pain and swelling...
January 11, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28070760/the-generation-r-study-design-and-cohort-update-2017
#13
Marjolein N Kooijman, Claudia J Kruithof, Cornelia M van Duijn, Liesbeth Duijts, Oscar H Franco, Marinus H van IJzendoorn, Johan C de Jongste, Caroline C W Klaver, Aad van der Lugt, Johan P Mackenbach, Henriëtte A Moll, Robin P Peeters, Hein Raat, Edmond H H M Rings, Fernando Rivadeneira, Marc P van der Schroeff, Eric A P Steegers, Henning Tiemeier, André G Uitterlinden, Frank C Verhulst, Eppo Wolvius, Janine F Felix, Vincent W V Jaddoe
The Generation R Study is a population-based prospective cohort study from fetal life until adulthood. The study is designed to identify early environmental and genetic causes and causal pathways leading to normal and abnormal growth, development and health from fetal life, childhood and young adulthood. This multidisciplinary study focuses on several health outcomes including behaviour and cognition, body composition, eye development, growth, hearing, heart and vascular development, infectious disease and immunity, oral health and facial growth, respiratory health, allergy and skin disorders of children and their parents...
December 2016: European Journal of Epidemiology
https://www.readbyqxmd.com/read/28069445/person-perception-involves-functional-integration-between-the-extrastriate-body-area-and-temporal-pole
#14
Inez M Greven, Richard Ramsey
The majority of human neuroscience research has focussed on understanding functional organisation within segregated patches of cortex. The ventral visual stream has been associated with the detection of physical features such as faces and body parts, whereas the theory-of-mind network has been associated with making inferences about mental states and underlying character, such as whether someone is friendly, selfish, or generous. To date, however, it is largely unknown how such distinct processing components integrate neural signals...
January 6, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28068480/magnetic-resonance-imaging-characterization-and-clinical-outcomes-after-neocart-surgical-therapy-as-a-primary-reparative-treatment-for-knee-cartilage-injuries
#15
Devon E Anderson, Riley J Williams, Thomas M DeBerardino, Dean C Taylor, C Benjamin Ma, Marie S Kane, Dennis C Crawford
BACKGROUND: Autologous cartilage tissue implants, including the NeoCart implant, are intended to repair focal articular cartilage lesions. Short-term results from United States Food and Drug Administration (FDA) phase I and phase II clinical trials indicated that the NeoCart implant was safe when surgically applied as a cell-based therapy and efficacious compared with microfracture. HYPOTHESIS: Quantitative magnetic resonance imaging (MRI) analysis would reveal NeoCart tissue maturation through to 60-month follow-up...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28067329/perceptual-similarity-and-the-neural-correlates-of-geometrical-illusions-in-human-brain-structure
#16
Vadim Axelrod, D Samuel Schwarzkopf, Sharon Gilaie-Dotan, Geraint Rees
Geometrical visual illusions are an intriguing phenomenon, in which subjective perception consistently misjudges the objective, physical properties of the visual stimulus. Prominent theoretical proposals have been advanced attempting to find common mechanisms across illusions. But empirically testing the similarity between illusions has been notoriously difficult because illusions have very different visual appearances. Here we overcome this difficulty by capitalizing on the variability of the illusory magnitude across participants...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065875/comparing-quality-of-life-in-cervical-spondylotic-myelopathy-with-other-chronic-debilitating-diseases-using-the-sf-36-survey
#17
Taemin Oh, Renaud Lafage, Virginie Lafage, Themistocles Protopsaltis, Vincent Challier, Christopher Shaffrey, Han Jo Kim, Paul Arnold, Jens Chapman, Frank Schwab, Eric Massicotte, Tim Yoon, Shay Bess, Michael Fehlings, Justin Smith, Christopher Ames
BACKGROUND: Although cervical spondylotic myelopathy (CSM) can be devastating, its relative impact on general health remains unclear. Patient responses to the SF-36 PCS/MCS were compared between CSM and other diseases to evaluate their respective impacts on quality of life. OBJECTIVE: Compare SF-36 PCS/MCS scores in CSM to population and disease-specific norms. METHODS: Retrospective analysis of a prospective, multi-center AOSpine North American CSM Study database...
January 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28063817/pulse-sequence-considerations-for-simulation-and-postimplant-dosimetry-of-prostate-brachytherapy
#18
Jingfei Ma, Marinus A Moerland, Aradhana M Venkatesan, Tharakeswara K Bathala, Rajat J Kudchadker, Kristy K Brock, Steven J Frank
PURPOSE: The purpose of this work is to present a brief review of MRI physics principles pertinent to prostate brachytherapy, and a summary of our experience in optimizing protocols for prostate brachytherapy applications. METHODS AND MATERIALS: We summarized essential MR imaging characteristics and their interplays that need to be considered for prostate brachytherapy applications. These include spatial resolution, signal-to-noise ratio, image contrast, artifacts, geometric distortion, specific absorption rate, and total scan time...
January 4, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28062895/3d-printed-renal-cancer-models-derived-from-mri-data-application-in-pre-surgical-planning
#19
Nicole Wake, Temitope Rude, Stella K Kang, Michael D Stifelman, James F Borin, Daniel K Sodickson, William C Huang, Hersh Chandarana
OBJECTIVE: To determine whether patient-specific 3D printed renal tumor models change pre-operative planning decisions made by urological surgeons in preparation for complex renal mass surgical procedures. MATERIALS AND METHODS: From our ongoing IRB approved study on renal neoplasms, ten renal mass cases were retrospectively selected based on Nephrometry Score greater than 5 (range 6-10). A 3D post-contrast fat-suppressed gradient-echo T1-weighted sequence was used to generate 3D printed models...
January 7, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28061547/comparison-of-magnetic-resonance-imaging-and-stress-radiographs-in-the-evaluation-of-chronic-lateral-ankle-instability
#20
Scott Jolman, Justin Robbins, Laura Lewis, Melissa Wilkes, Paul Ryan
BACKGROUND: In patients who develop chronic ankle instability, clinicians often obtain magnetic resonance imaging (MRI) as part of the evaluation prior to operative referral. The purpose of this study was to analyze the diagnostic efficacy of MRI in the diagnosis of chronic lateral ankle instability. Our hypothesis was that magnetic resonance imaging would not be a specific diagnostic tool in the evaluation of chronic lateral ankle instability. MATERIALS AND METHODS: A retrospective chart review of 187 consecutive patients (190 ankles) was performed...
January 1, 2017: Foot & Ankle International
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