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https://www.readbyqxmd.com/read/28346539/is-there-a-relation-between-novelty-seeking-striatal-dopamine-release-and-frontal-cortical-thickness
#1
Natalia Jaworska, Sylvia M Cox, Kevin F Casey, Isabelle Boileau, Mariya Cherkasova, Kevin Larcher, Alain Dagher, Chawki Benkelfat, Marco Leyton
BACKGROUND: Novelty-seeking (NS) and impulsive personality traits have been proposed to reflect an interplay between fronto-cortical and limbic systems, including the limbic striatum (LS). Although neuroimaging studies have provided some evidence for this, most are comprised of small samples and many report surprisingly large effects given the challenges of trying to relate a snapshot of brain function or structure to an entity as complex as personality. The current work tested a priori hypotheses about associations between striatal dopamine (DA) release, cortical thickness (CT), and NS in a large sample of healthy adults...
2017: PloS One
https://www.readbyqxmd.com/read/28346081/pneumocystis-jiroveci-pneumonia-pjp-in-non-hiv-immunocompromised-individuals
#2
Kathleen Schoovaerts, Luc Dirix, Annemie Rutten, Jef Van Schaeren, Bruno Van Herendael, Sofie Van Grieken, Luc Heytens
OBJECTIVES: PJP is a major cause of morbidity and mortality in immunocompromised individuals. Diagnosing PJP is often difficult because respiratory signs might be minimal or absent and the sensitivity of a chest X-ray (CXR) is low. We studied the clinical risk factors in order to increase awareness and facilitate the diagnosis. METHODS: We studied a prospective case series over a one year period (from 1 January 2015 to 1 January 2016) and did a retrospective analysis (from 2013 to 2016) of all PJP positive bronchoalveolar lavage (BAL) analysis...
March 27, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28343893/local-hemostatic-matrix-for-endoscope-assisted-removal-of-intracerebral-hemorrhage-is-safe-and-effective
#3
Hui-Tzung Luh, Abel Po-Hao Huang, Shih-Hung Yang, Chien-Ming Chen, Der-Yang Cho, Chun-Chung Chen, Lu-Ting Kuo, Chieh-Hsun Li, Kuo-Chuan Wang, Wei-Lung Tseng, Ming-Tai Hsing, Bing-Shiang Yang, Dar-Ming Lai, Jui-Chang Tsai
BACKGROUND/PURPOSE: Minimally invasive endoscope-assisted (MIE) evacuation of spontaneous intracerebral hemorrhage (ICH) is simple and effective, but the limited working space may hinder meticulous hemostasis and might lead to rebleeding. Management of intraoperative hemorrhage is therefore a critical issue of this study. This study presents experience in the treatment of patients with various types of ICH by MIE evacuation followed by direct local injection of FloSeal Hemostatic Matrix (Baxter Healthcare Corp, Fremont, CA, USA) for hemostasis...
March 23, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28343797/early-brain-edema-is-a-predictor-of-in-hospital-mortality-in-traumatic-brain-injury
#4
Brian Tucker, Jill Aston, Megan Dines, Elena Caraman, Marianne Yacyshyn, Mary McCarthy, James E Olson
BACKGROUND: Identifying patients who may progress to a poor clinical outcome will encourage earlier appropriate therapeutic interventions. Brain edema may contribute to secondary injury in traumatic brain injury (TBI) and thus, may be a useful prognostic indicator. OBJECTIVE: We determined whether the presence of brain edema on the initial computed tomography (CT) scan of TBI patients would predict poor in-hospital outcome. METHODS: We performed a retrospective review of all trauma patients with nonpenetrating head trauma at a Level I Trauma Center...
March 23, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28342701/predictive-subtle-or-overlooked-initial-head-ct-findings-in-patients-who-develop-delayed-chronic-subdural-hematoma
#5
William C Olivero, Huan Wang, Arash Farahvar, Thomas A Kim, Fei Wang
With the aging population, the incidence of chronic subdural hematoma (CSDH) is expected to rise. Once symptomatic the morbidity from CSDH is not insignificant. We studied patients who had a minor head injury and CT brain scan prior to developing CSDH to determine if there were any predictors on these scans for subsequent development of a CSDH. A retrospective review was performed on all patients operated for CSDH over a 3-year period and a review performed on those who had imaging studies at the time of a preceding minor head injury...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28342115/ssh-versus-tse-sequence-protocol-in-rapid-mr-examination-of-pediatric-patients-with-programmable-drainage-system
#6
Eva Brichtová, J Šenkyřík
PURPOSE: A low radiation burden is essential during diagnostic procedures in pediatric patients due to their high tissue sensitivity. Using MR examination instead of the routinely used CT reduces the radiation exposure and the risk of adverse stochastic effects. Our retrospective study evaluated the possibility of using ultrafast single-shot (SSh) sequences and turbo spin echo (TSE) sequences in rapid MR brain imaging in pediatric patients with hydrocephalus and a programmable ventriculoperitoneal drainage system...
March 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28341992/a-semi-automated-volumetric-software-for-segmentation-and-perfusion-parameter-quantification-of-brain-tumors-using-320-row-multidetector-computed-tomography-a-validation-study
#7
Soo Young Chae, Sangil Suh, Inseon Ryoo, Arim Park, Kyoung Jin Noh, Hackjoon Shim, Hae Young Seol
PURPOSE: We developed a semi-automated volumetric software, NPerfusion, to segment brain tumors and quantify perfusion parameters on whole-brain CT perfusion (WBCTP) images. The purpose of this study was to assess the feasibility of the software and to validate its performance compared with manual segmentation. METHODS: Twenty-nine patients with pathologically proven brain tumors who underwent preoperative WBCTP between August 2012 and February 2015 were included...
March 24, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28341799/use-of-traumatic-brain-injury-prediction-rules-with-clinical-decision-support
#8
Peter S Dayan, Dustin W Ballard, Eric Tham, Jeff M Hoffman, Marguerite Swietlik, Sara J Deakyne, Evaline A Alessandrini, Leah Tzimenatos, Lalit Bajaj, David R Vinson, Dustin G Mark, Steve R Offerman, Uli K Chettipally, Marilyn D Paterno, Molly H Schaeffer, Jun Wang, T Charles Casper, Howard S Goldberg, Robert W Grundmeier, Nathan Kuppermann
OBJECTIVES: We determined whether implementing the Pediatric Emergency Care Applied Research Network (PECARN) traumatic brain injury (TBI) prediction rules and providing risks of clinically important TBIs (ciTBIs) with computerized clinical decision support (CDS) reduces computed tomography (CT) use for children with minor head trauma. METHODS: Nonrandomized trial with concurrent controls at 5 pediatric emergency departments (PEDs) and 8 general EDs (GEDs) between November 2011 and June 2014...
March 24, 2017: Pediatrics
https://www.readbyqxmd.com/read/28341040/hyperdense-middle-cerebral-artery-sign-as-the-only-radiological-manifestation-of-hyperacute-ischemic-stroke-in-computed-tomography
#9
Robert Chrzan, Agnieszka Gleń, Andrzej Urbanik
OBJECTIVES: The main aim of the study was to find the effect of hyperdense middle cerebral artery sign (HMCAS), as the only admission computed tomography (CT) manifestation of ischemic stroke involving middle cerebral artery (MCA) region, on the extent of stroke measured by Alberta Stroke Program Early CT score (ASPECTS) in the follow-up CT. The secondary aim was to determine the correlation between length of hyperdense MCA segment on admission CT and ASPECTS in follow-up CT. METHODS: The group analyzed consisted of 118 patients with ischemic MCA region stroke, with no early signs of brain tissue ischemia on admission CT, but infarcts confirmed in follow-up CT, with extent evaluated using ASPECTS...
January 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28336781/quantitative-evaluation-of-two-scatter-correction-techniques-for-18-f-fdg-brain-pet-mr-imaging-in-regard-to-mr-based-attenuation-correction
#10
Jarmo Teuho, Virva Saunavaara, Tuula Tolvanen, Terhi Tuokkola, Antti Karlsson, Jouni Tuisku, Mika Teräs
In positron emission tomography (PET), corrections for photon scatter and attenuation are essential for visual and quantitative consistency. Magnetic resonance attenuation correction (MRAC) is generally conducted by image segmentation and assignment of discrete attenuation coefficients, which offers limited accuracy compared to computed tomography attenuation correction (CTAC). Potential inaccuracies in MRAC may affect scatter correction, as the attenuation image (µ-map) is used in single scatter simulation (SSS) to calculate the scatter estimate...
March 23, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28336780/biodistribution-and-radiation-dosimetry-for-the-tau-tracer-18-f-thk-5351-in-healthy-human-subjects
#11
Ing-Tsung Hsiao, Kun-Ju Lin, Kuo-Lun Huang, Chin-Chang Huang, Han-Shiuan Chen, Shiaw-Pyng Wey, Tzu-Chen Yen, Nobuyuki Okamura, Jung-Lung Hsu
(18)F-THK-5351 is a novel radiotracer that demonstrates high binding selectivity and affinity for tau pathology and exhibits better pharmacokinetics in the living brain than previous THK tau probes. The aim of the present study was to estimate the radiation dose of (18)F-THK-5351 in humans and to compare the clinical radiation dosimetry results to estimations published previously with preclinical data. Methods: Serial whole-body positron emission tomography/computed tomography (PET/CT) imaging was performed for 240 min on 12 healthy volunteers after injecting (18)F-THK-5351 (mean administered activity: 377...
March 23, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28336122/familial-acute-necrotizing-encephalopathy-with-ranbp2-mutation-the-first-report-in-northeast-asia
#12
Yun-Jeong Lee, Su-Kyeong Hwang, So Mi Lee, Soonhak Kwon
BACKGROUND: Acute necrotizing encephalopathy (ANE) is a rare but rapidly progressing encephalopathy following a febrile illness, commonly a viral infection. It is characterized by the features of acute encephalopathy such as seizure, alteration of consciousness, and symmetric involvement of the bilateral thalamus on neuroimaging tests. Although most ANE cases have occurred sporadically, familial or recurrent ANE has been reported in Caucasian patients, with genetic susceptibility to ANE noted in some patients due to a RANBP2 mutation...
March 20, 2017: Brain & Development
https://www.readbyqxmd.com/read/28335668/directions-for-use-of-intracranial-pressure-monitoring-in-treatment-of-severe-traumatic-brain-injury-using-data-from-the-japan-neurotrauma-data-bank
#13
Eiichi Suehiro, Yuichi Fujiyama, Hiroyasu Koizumi, Michiyasu Suzuki
Neuromonitoring can be used to observe intracranial pathological conditions in neurointensive care, but use of intracranial pressure (ICP) monitoring is low in Japan. In this study, we retrospectively investigated the effects of ICP monitoring in treatment of severe traumatic brain injury (TBI) using data from the Japan Neurotrauma Data Bank (JNTDB). The study was conducted in 1,091 subjects enrolled in the JNTDB (Project 2009) from July 2009 to June 2011. The subjects were divided into those treated with and without ICP monitoring in intensive care for severe TBI...
March 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28332488/parkinson-disease
#14
REVIEW
Werner Poewe, Klaus Seppi, Caroline M Tanner, Glenda M Halliday, Patrik Brundin, Jens Volkmann, Anette-Eleonore Schrag, Anthony E Lang
Parkinson disease is the second-most common neurodegenerative disorder that affects 2-3% of the population ≥65 years of age. Neuronal loss in the substantia nigra, which causes striatal dopamine deficiency, and intracellular inclusions containing aggregates of α-synuclein are the neuropathological hallmarks of Parkinson disease. Multiple other cell types throughout the central and peripheral autonomic nervous system are also involved, probably from early disease onwards. Although clinical diagnosis relies on the presence of bradykinesia and other cardinal motor features, Parkinson disease is associated with many non-motor symptoms that add to overall disability...
March 23, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28332331/computed-tomography-for-head-injuries-in-children-change-in-australian-usage-rates-over-time
#15
Ed Oakley, Rachel May, Tobias Hoeppner, Kam Sinn, Jeremy Furyk, Simon Craig, Pamela Rosengarten, Amit Kochar, David Krieser, Sarah Dalton, Stuart Dalziel, Jocelyn Neutze, Tim Cain, Kim Jachno, Franz E Babl
OBJECTIVE: Paediatric head injury is a common presentation to the ED. North American studies demonstrate increasing use of computed tomography (CT) brain scan (CTB) to investigate head injury. No such data exists for Australian EDs. The aim of this study was to describe CTB use in head injury over time in eight Australian EDs. METHODS: Retrospective ED electronic database and medical imaging database audit was undertaken for the years 2001-2010 by International Classification of Diseases (ICD) 9 or 10 code for head injury in children <16 years...
April 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28331022/effect-of-non-pharmacological-intervention-for-apathy-response-to-one-on-one-reminiscence-based-intervention
#16
Akira Okada, Tetsuya Ueda
Apathy has adverse consequences for patients and caregivers. However, the therapeutic approach remains uncertain. Here, we present the case of a man aged 67 years who only developed apathy after surgery for oesophageal cancer. He showed no response to intervention with donepezil, a 'brain training' video game and psychoeducation for apathy. Subsequently, we implemented a programme designed to facilitate recall of 2 themes (editorial content and television shows during the week) once a week. After 3 months, the scores of 2 apathy scales rated by the patient's wife, psychological test scores and brain perfusion single-photon emission CT data improved compared with those obtained before intervention...
March 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28331021/aspergillus-niger-infection-in-an-immunosuppressed-patient-confined-solely-to-the-brain
#17
Lucy Simmonds, Sian Mitchell, Barrie White, Shanika A Crusz, David Denning
A 68-year-old woman with a background of hypertension, stroke and rheumatoid arthritis presented to her local hospital after a 4-week history of gradual deterioration and increasing confusion with new onset right-sided weakness. Her initial CT scan revealed a rim enhancing mass lesion with surrounding oedema in the left parietal lobe for which she underwent CT stealth-guided biopsy. Microbiology culture of the 2 biopsy samples yielded Aspergillus niger and she was started on the antifungal agent voriconazole...
March 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28329257/lessons-learned-at-the-epicenter-of-brazil-s-congenital-zika-epidemic-evidence-from-87-confirmed-cases
#18
Jucille do Amaral Meneses, Ana Catarina Ishigami, Luisa Medeiros de Mello, Luciano Lira de Albuquerque, Carlos Alexandre Antunes de Brito, Marli Tenório Cordeiro, Lindomar José Pena
Congenital Zika virus infection has stimulated great international concern. A prospective case series of 87 infants with laboratory-confirmed congenital Zika syndrome (CZS) at the epicenter of the Brazilian Zika epidemic in Pernambuco state is presented. Mothers were interviewed for symptoms of possible Zika virus (ZIKV) infection during pregnancy and fetal ultrasounds were obtained. Infant cerebrospinal fluid (CSF) samples were tested for ZIKV specific antibodies and sera were screened for other congenital infections...
February 24, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28328241/perfusion-ct-in-acute-stroke-effectiveness-of-automatically-generated-colour-maps
#19
Maja Ukmar, Ferruccio Degrassi, Roberta Antea Pozzi Mucelli, Francesca Neri, Fabio Pozzi Mucelli, Maria Assunta Cova
OBJECTIVE: To evaluate the accuracy of perfusion CT (pCT) in the definition of the infarcted core and the penumbra, comparing the data obtained from the evaluation of parametric maps [cerebral blood volume (CBV), cerebral blood flow (CBF) and mean transit time (MTT)] with software-generated colour maps. METHODS: A retrospective analysis was performed to identify patients with suspected acute ischaemic strokes and who had undergone unenhanced CT and pCT carried out within 4...
April 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28327204/lung-adenocarcinoma-with-thyroid-metastasis-a-case-report
#20
A Dao, H Jabir, A Taleb, N Benchakroun, Z Bouchbika, T Nezha, H Jouhadi, S Sahraoui, A Benider
BACKGROUND: The metastases of a primary lung cancer over the thyroid gland are extremely rare. We report on an unusual presentation of thyroid metastasis of lung cancer in order to improve the management of similar cases. CASE PRESENTATION: Three years ago, a Moroccan male 59-year-old was admitted for dyspnea, dry cough, and chest pain. He had smoked about 30 cigarette packs a year. Clinical examination revealed a right thyroid nodule. Chest and neck computed tomography (CT) scan showed a proximal left tumor in contact with the pulmonary artery and revealed a suspected nodule in the right lobe of the thyroid with homolateral neck node...
March 21, 2017: BMC Research Notes
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