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https://www.readbyqxmd.com/read/29452984/quantitative-cerebrovascular-pathology-in-a-community-based-cohort-of-older-adults
#1
Swati Rane, Natalie Koh, Peter Boord, Tara Madhyastha, Mary K Askren, Suman Jayadev, Brenna Cholerton, Eric Larson, Thomas J Grabowski
Cerebrovascular disease, especially small vessel pathology, is the leading comorbidity in degenerative disorders. We applied arterial spin labeling and cerebrovascular reserve (CVR) imaging to quantify small vessel disease and study its effect on cognitive symptoms in nondemented older adults from a community-based cohort. We evaluated baseline cerebral blood flow (CBF) using arterial spin labeling and percent signal change as a marker of CVR using blood-oxygen level-dependent imaging following a breath-hold stimulus...
January 31, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29452924/incidental-hepatic-lesions-detected-on-breast-mri-rate-of-malignancy-and-implications-for-utilization
#2
Priya K Shah, Ilana A Kafer, Gregory M Grimaldi
OBJECTIVE: The objective of this study was to determine the rate of malignancy in incidentally detected T2 hyperintense hepatic lesions at breast MRI. METHODS: Incidental hepatic lesions identified during breast MRI, for which abdominal imaging was recommended, were retrospectively analyzed. RESULTS: Of the hepatic lesions, 97.3% were benign, and 2.7% were malignant, with a significant association between indication for the breast MRI and the malignancy status of the hepatic lesion (Fisher's Exact, P < 0...
February 6, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29452319/-white-cord-syndrome-of-acute-hemiparesis-after-posterior-cervical-decompression-and-fusion-for-chronic-cervical-stenosis
#3
Prince Antwi, Ryan Grant, Gregory Kuzmik, Khalid Abbed
BACKGROUND: "White cord syndrome" is a very rare condition thought to be the result of acute reperfusion of chronically ischemic areas of the spinal cord. Its hallmark is the presence of intramedullary hyperintense signal on T2-weighted MRI sequences in a patient with unexplained neurologic deficits following a spinal cord decompression. The syndrome is rare and has been reported previously in two patients following anterior cervical decompression and fusion. CASE DESCRIPTION: Here, we report an additional case of this complication in a 68-year-old man who developed acute left-sided hemiparesis after posterior cervical decompression and fusion for cervical spondylotic myelopathy...
February 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29451209/predictors-of-short-term-outcome-in-patients-with-acute-middle-cerebral-artery-occlusion-unsuitability-of-fluid-attenuated-inversion-recovery-vascular-hyperintensity-scores
#4
Chan-Chan Li, Xiao-Zhu Hao, Jia-Qi Tian, Zhen-Wei Yao, Xiao-Yuan Feng, Yan-Mei Yang
Fluid-attenuated inversion recovery (FLAIR) vascular hyperintensity (FVH) is used to assess leptomeningeal collateral circulation, but clinical outcomes of patients with FVH can be very different. The aim of the present study was to assess a FVH score and explore its relationship with clinical outcomes. Patients with acute ischemic stroke due to middle cerebral artery M1 occlusion underwent magnetic resonance imaging and were followed up at 10 days (National Institutes of Health Stroke Scale) and 90 days (modified Rankin Scale) to determine short-term clinical outcomes...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29450608/imaging-findings-of-ovarian-dysgerminoma-with-emphasis-on-multiplicity-and-vascular-architecture-pathogenic-implications
#5
Takahiro Tsuboyama, Yumiko Hori, Masatoshi Hori, Hiromitsu Onishi, Mitsuaki Tatsumi, Makoto Sakane, Takashi Ota, Noriyuki Tomiyama
We report the imaging findings of three ovarian dysgerminomas that coexisted with other germ cell tumors or gonadoblastomas, focusing on the distribution of tumor nests and vascular architecture, which might provide information about the pathogenesis of dysgerminomas. In a 14-year-old female with dysgerminoma and coexisting gonadoblastomas, contrast-enhanced magnetic resonance imaging (MRI) demonstrated a solid mass in the right ovary, which presented as hyperintense lobules on diffusion-weighted imaging separated by fibrovascular septa...
February 15, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29445509/a-case-of-paraplegia-that-developed-6-years-after-thoracic-endovascular-aortic-repair-for-blunt-traumatic-aortic-injury
#6
Hiroyuki Takahashi, Tomohisa Shoko, Fumino Taketazu, Keiichi Kuriyama, Kazuhide Yoshikawa, Yoshizumi Deguchi
Case: Thoracic endovascular aortic repair (TEVAR) is becoming the standard therapy for blunt thoracic aortic injury (BTAI). However, the long-term outcomes of TEVAR for BTAI remain unclear. A 36-year-old man was admitted to our emergency department with dyspnea. He had been involved in a serious traffic accident 6 years earlier, requiring TEVAR for BTAI. Outcome: Acute heart failure and pneumonia were diagnosed on this admission. His respiratory condition improved, but paraplegia developed 10 h after hospitalization...
January 2018: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29444966/cerebral-microbleeds-and-csf-alzheimer-biomarkers-in-primary-progressive-aphasias
#7
Aline Mendes, Anne Bertrand, Foudil Lamari, Olivier Colliot, Alexandre Routier, Olivier Godefroy, Frédérique Etcharry-Bouyx, Olivier Moreaud, Florence Pasquier, Philippe Couratier, Karim Bennys, Martine Vercelletto, Olivier Martinaud, Bernard Laurent, Jérémie Pariente, Michèle Puel, Stéphane Epelbaum, Serge Belliard, Takoua Kaaouana, Ludovic Fillon, Marie Chupin, Bruno Dubois, Marc Teichmann
OBJECTIVE: To reveal the prevalence and localization of cerebral microbleeds (CMBs) in the 3 main variants of primary progressive aphasia (PPA) (logopenic, semantic, and nonfluent/agrammatic), to identify the relationship with underlying Alzheimer pathology, and to explore whether CMBs contribute to language breakdown. METHODS: We used a cross-sectional design in a multicenter cohort of 82 patients with PPA and 19 similarly aged healthy controls. MRI allowed for rating CMBs (2-dimensional gradient recalled echo T2*, susceptibility weighted imaging sequences) and white matter hyperintensities...
February 14, 2018: Neurology
https://www.readbyqxmd.com/read/29444659/right-to-left-shunt-and-subclinical-ischemic-brain-lesions-in-chinese-migraineurs-a-multicentre-mri-study
#8
Xiao-Han Jiang, Si-Bo Wang, Qian Tian, Chi Zhong, Guan-Ling Zhang, Ya-Jie Li, Pan Lin, Yong You, Rong Guo, Ying-Hua Cui, Ying-Qi Xing
BACKGROUND: Migraine is considered as a risk factor for subclinical brain ischemic lesions, and right-to-left shunt (RLS) is more common among migraineurs. This cross-sectional study assessed the association of RLS with the increased prevalence of subclinical ischemic brain lesions in migraineurs. METHODS: We enrolled 334 migraineurs from a multicentre study from June 2015 to August 2016. Participants were all evaluated using contrast-enhanced transcranial Doppler, magnetic resonance imaging (MRI), and completed a questionnaire covering demographics, the main risk factors of vascular disease, and migraine status...
February 14, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29443770/whether-innate-immune-together-with-genetic-factor-are-involved-in-leukemic-arthritis-a-case-report-and-review-of-the-literature
#9
Danyi Xu, Guanhua Xu, Jin Lin
We report a case of leukemic arthritis (LA) of monocytic differentiation, which presented with spondyloarthritis-like symptoms and a positive human leukocyte antigen-B27, and discuss its potential mechanisms.The patient was admitted because of pain in her right knee and lower back for 18 months. Magnetic resonance imaging showed diffuse hyperintense signal in the bilateral liac bones and bone marrow edema and synovitis in the right knee.The diagnosis of acute monocytic leukemia and LA were concluded by bone marrow aspiration and flow cytometry of the synovial fluid...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29440542/journal-club-relationship-between-carotid-arterial-properties-and-cerebral-white-matter-hyperintensities
#10
Jordan W Squair, Thalia S Field, Aaron A Phillips
No abstract text is available yet for this article.
February 13, 2018: Neurology
https://www.readbyqxmd.com/read/29440326/multiparametric-mri-of-intracranial-aneurysms-treated-with-the-woven-endobridge-web-a-case-of-faraday-s-cage
#11
Marie Teresa Nawka, Jan Sedlacik, Andreas Frölich, Maxim Bester, Jens Fiehler, Jan-Hendrik Buhk
OBJECTIVE: To evaluate multiparametric MRI including non-contrast and contrast-enhanced morphological and angiographic techniques for intracranial aneurysms treated with the single-layer Woven EndoBridge (WEB) embolization system applying simultaneous digital subtraction angiography (DSA) as the reference of standard. MATERIALS AND METHODS: We retrospectively identified all patients with incidental and acute ruptured intracranial aneurysms treated with a WEB device (WEB SL and WEB SLS) between March 2014 and June 2016 in our neurovascular center with early (within 7 days) postinterventional multiparametric MRI as well as mid-term (5-8 months) follow-up MRI and DSA available...
February 10, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29439908/symptom-associated-change-of-motor-related-neuromagnetic-fields-in-a-patient-with-multiple-sclerosis-a-case-report
#12
Ji Hee Kim, Bong Soo Kim, Su Jeong Hwang, Won Seok Chang, Ki Woong Kim, Hyuk Chan Kwon, Yong Ho Lee, Jin Woo Chang
The objective of this study was to investigate functional abnormalities of the brain in a patient with multiple sclerosis (MS) by using magnetoencephalography (MEG) and a finger-tapping task. A 46-year-old woman that presented with motor weakness of left hand and was diagnosed with MS. Conventional magnetic resonance imaging demonstrated a white matter lesion with hyperintensity on T2-weighted images in the right motor area. MEG recordings were performed during the period of motor weakness and after clinical improvement...
February 10, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29439160/co-occurrence-of-depressive-symptoms-and-executive-dysfunction-after-stroke-associations-with-brain-pathology-and-prognosis
#13
Elles Douven, Pauline Aalten, Julie Staals, Syenna H J Schievink, Robert J van Oostenbrugge, Frans R J Verhey, Sebastian Köhler
OBJECTIVE: To examine, first, whether the co-occurrence of executive dysfunction (ED) and poststroke depression (PSD) shows different associations with neuroimaging markers and the course of depression and executive function, and second, whether it is associated with a different course on other cognitive domains and quality of life. METHODS: The present study included 245 stroke patients (35.9% female, mean age 67.5 years (SD=11.9). All patients completed neuropsychological and neuropsychiatric assessment 3 months poststroke, which were repeated at 6-month and 12-month follow-up...
February 8, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29438826/morphometric-analyses-of-small-accessory-liver-lobes-using-radiological-imaging
#14
Kumi Ozaki, Jun Yoshikawa, Toru Yamamoto
AIM: To investigate the prevalence and morphometric characteristics of small accessory liver lobes using computed tomography (CT) and magnetic resonance (MR) images. MATERIAL AND METHODS: The study population comprised 3269 patients (1671 men and 1598 women; mean age, 67.1 ± 15.2 years) who had undergone abdominal CT examination. Small accessory liver lobes were identified after verification of their continuity with the liver parenchyma on CT images. Their imaging characteristics were analyzed and presented...
February 6, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29438603/from-early-radiographic-knee-osteoarthritis-to-joint-arthroplasty-determinants-of-structural-progression-and-symptoms
#15
Frank W Roemer, C Kent Kwoh, Tomoko Fujii, Michael J Hannon, Robert M Boudreau, David J Hunter, Felix Eckstein, Markus R John, Ali Guermazi
OBJECTIVE: Aims were to assess (1) structural progression in knees with no/mild radiographic osteoarthritis (ROA) (i.e. Kellgren-Lawrence (K-L) grades 0 to 2) that will undergo knee replacement (KR) during a 5-year period; (2) differences in structural damage on MRI between knees with no/mild ROA vs. those with severe ROA (i.e. K-L 3 and 4) at baseline; and (3) differences in pain levels between those groups. METHODS: All participants who underwent KR from baseline (BL) to 60 months were drawn from the Osteoarthritis Initiative...
February 13, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29437912/new-hallmark-of-hepatocellular-carcinoma-early-hepatocellular-carcinoma-and-high-grade-dysplastic-nodules-on-gd-eob-dtpa-mri-in-patients-with-cirrhosis-a-new-diagnostic-algorithm
#16
Matteo Renzulli, Maurizio Biselli, Stefano Brocchi, Alessandro Granito, Francesco Vasuri, Francesco Tovoli, Elisa Sessagesimi, Fabio Piscaglia, Antonietta D'Errico, Luigi Bolondi, Rita Golfieri
OBJECTIVE: Many improvements have been made in diagnosing hepatocellular carcinoma (HCC), but the radiological hallmarks of HCC have remained the same for many years. We prospectively evaluated the imaging criteria of HCC, early HCC and high-grade dysplastic nodules (HGDNs) in patients under surveillance for chronic liver disease, using gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) MRI and diffusion-weighted imaging. DESIGN: Our study population included 420 nodules >1 cm in 228 patients...
February 3, 2018: Gut
https://www.readbyqxmd.com/read/29431141/does-tranexamic-acid-lead-to-changes-in-mri-measures-of-brain-tissue-health-in-patients-with-spontaneous-intracerebral-haemorrhage-protocol-for-a-mri-substudy-nested-within-the-double-blind-randomised-controlled-tich-2-trial
#17
Rob A Dineen, Stefan Pszczolkowski, Katie Flaherty, Zhe K Law, Paul S Morgan, Ian Roberts, David J Werring, Rustam Al-Shahi Salman, Tim England, Philip M Bath, Nikola Sprigg
OBJECTIVES: To test whether administration of the antifibrinolytic drug tranexamic acid (TXA) in patients with spontaneous intracerebral haemorrhage (SICH) leads to increased prevalence of diffusion-weighted MRI-defined hyperintense ischaemic lesions (primary hypothesis) or reduced perihaematomal oedema volume, perihaematomal diffusion restriction and residual MRI-defined SICH-related tissue damage (secondary hypotheses). DESIGN: MRI substudy nested within the double-blind randomised controlled Tranexamic Acid for Hyperacute Primary Intracerebral Haemorrhage (TICH)-2 trial (ISRCTN93732214)...
February 3, 2018: BMJ Open
https://www.readbyqxmd.com/read/29427049/favourable-outcome-in-a-child-with-symptomatic-diagnosis-of-glutaric-aciduria-type-1-despite-vertical-hiv-infection-and-minor-head-trauma
#18
Angeline Thomas, Els F M Dobbels, Priscilla E Springer, Christelle Ackermann, Mark F Cotton, Barbara Laughton
The first case of Glutaric aciduria Type 1(GA1) in an African child was reported in 2001. GA1 has a prevalence of 1:5000 in black South Africans. Although early diagnosis is essential for a favourable outcome, newborn screening is not routine in South Africa where an estimated 320,000 children have HIV infection. Neurodevelopmental delay and encephalopathy are complications of both HIV and GA1. In such a setting it is important to recognise that HIV and GA1 can occur simultaneously. We present an HIV-infected South African male child of Xhosa descent with macrocephaly who commenced combination antiretroviral therapy (ART) at 8 weeks of age in a clinical trial which included a neurodevelopmental sub-study...
February 9, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29426989/magnetic-resonance-post-contrast-vascular-hyperintensities-at-3-t-a-new-highly-sensitive-sign-of-vascular-occlusion-in-acute-ischaemic-stroke
#19
Loïc Duron, Julien Savatovsky, Michael Obadia, Marie Astrid Metten, Pascal Roux, Raphael Blanc, Jean-Claude Sadik, Sarah Dhundass, Augustin Lecler
BACKGROUND: Magnetic resonance imaging (MRI) is the diagnostic cornerstone for precisely identifying acute ischaemic strokes and locating vascular occlusions, especially since mechanical thrombectomy has become a reference treatment. We observed that a post-contrast three-dimensional turbo-spin-echo T1-weighted sequence showed striking post-contrast vascular hyperintensities (PCVH) in ischaemic territories. We aimed to evaluate the prevalence and the meaning of this finding. METHODS: This retrospective single centre study included 130 consecutive patients admitted for acute ischaemic stroke with a 3-T MRI performed in the first 12 h of symptom onset from September 2014 through September 2016...
February 9, 2018: European Radiology
https://www.readbyqxmd.com/read/29425986/is-edema-a-matter-of-concern-after-laser-ablation-of-epileptogenic-focus
#20
Vivek Tandon, Michael Lang, Poodipedi Sarat Chandra, Ashwini Sharan, Ajay Garg, Manjari Tripathi
BACKGROUND: A stereotactically placed laser fiber can deliver thermal energy to an epileptogenic focus in brain. This procedure is done under intraoperative (thermography) magnetic resonance imaging (MRI) guidance. Thermoablation can lead to edema in surrounding area and can cause secondary insult. In this case report of three cases, we have quantified the edema produced after laser ablation, with sequential MRI in immediate post-operative period. CASE DESCRIPTION(S): Three patients of intractable epilepsy underwent proper neurological and neuro-radiological workup to localize the site of epileptogenic foci...
February 6, 2018: World Neurosurgery
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