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Neuroradiology

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https://www.readbyqxmd.com/read/28427979/a-new-type-of-spinal-epidural-arteriovenous-fistulas-causes-spinal-epidural-hemorrhage-an-analysis-of-five-cases-and-natural-history-consideration
#1
Jia-Xing Yu, Tao Hong, Yong-Jie Ma, Feng Ling, Hong-Qi Zhang
BACKGROUND: Spinal epidural arteriovenous fistulas (SEDAVFs) are peculiar and poorly understood lesions with a poorly understood natural history. They are usually subclassified into two types according to their drainage components. This study aimed to describe a new type of SEDAVFs that is featured with a unique drainage pattern and present our natural history hypothesis of SEDAVFs. METHODS: Five SEDAVF cases of the new type were retrospectively reviewed from a high case-volume spinal vascular malformation database...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28427164/early-tumour-shrinkage-as-a-survival-predictor-in-patients-with-recurrent-glioblastoma-treated-with-bevacizumab-in-the-avareg-randomized-phase-ii-study
#2
Alba A Brandes, Gaetano Finocchiaro, Vittorina Zagonel, Michele Reni, Alessandra Fabi, Claudia Caserta, Alicia Tosoni, Marica Eoli, Giuseppe Lombardi, Matteo Clavarezza, Alexandro Paccapelo, Stefania Bartolini, Luigi Cirillo, Raffaele Agati, Enrico Franceschi
BACKGROUND: Disease assessment for recurrent glioblastoma (GBM) represents a challenge, especially with the use of antiangiogenic agents. Moreover, validated neuroradiological predictors of outcome are lacking. Recently, the concept of early tumor shrinkage (ETS) has been developed to better assess the ability of treatments in determining a rapid and remarkable tumor response.The aim of the study was to evaluate the role of ETS in predicting survival of GBM patients treated with BEVMETHODS: We examined the radiological data of patients with recurrent GBM treated with bevacizumab (BEV) or fotemustine (FTM) in the randomized phase II AVAREG trial (EudraCT: 2011-001363-46)...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28419988/neutrophil-to-lymphocyte-ratio-is-an-independent-predictor-for-in-hospital-mortality-in-spontaneous-intracerebral-hemorrhage
#3
Antje Giede-Jeppe, Tobias Bobinger, Stefan T Gerner, Jochen A Sembill, Maximilian I Sprügel, Vanessa D Beuscher, Hannes Lücking, Philip Hoelter, Joji B Kuramatsu, Hagen B Huttner
BACKGROUND AND PURPOSE: Stroke-associated immunosuppression and inflammation are increasingly recognized as factors that trigger infections and thus, potentially influence the outcome after stroke. Several studies demonstrated that elevated neutrophil-to-lymphocyte ratio (NLR) is a significant predictor of adverse outcomes in patients with ischemic stroke. However, little is known about the impact of NLR on short-term mortality in intracerebral hemorrhage (ICH). METHODS: This observational study included 855 consecutive ICH-patients...
April 19, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28409229/sphenoid-dysplasia-in-neurofibromatosis-type-1-a-new-technique-for-repair
#4
Di Rocco Concezio, Samii Amir, Tamburrini Gianpiero, Massimi Luca, Giordano Mario
PURPOSE: Sphenoid bone dysplasia in neurofibromatosis type 1 is characterized by progressive exophthalmos and facial disfiguration secondary to herniation of meningeal and cerebral structures. We describe a technique for reconstruction of the sphenoid defect apt at preventing or correcting the ocular globe dislocation. METHODS: After placement of spinal cerebrospinal fluid drainage to reduce intracranial pressure, the temporal pole is posteriorly dislocated extradurally...
April 13, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28408041/nontraumatic-head-and-neck-injuries-a-clinical-approach-part-2
#5
B Brea Álvarez, L Esteban García, M Tuñón Gómez, Y Cepeda Ibarra
Nontraumatic emergencies of the head and neck represent a challenge in the field of neuroradiology for two reasons. As explained in the first part of this update, these entities affect an area where the thorax joins the cranial cavity and can thus compromise both structures; second, they are uncommon, so they are not well known. Maintaining the same approach as in the first part, focusing on the clinical presentations in the emergency department rather than on the anatomic regions affected, we will study the entities that present with two patterns: those that present with a combination of cervical numbness, dysphagia, and dyspnea and those that present with acute sensory deficits...
April 10, 2017: Radiología
https://www.readbyqxmd.com/read/28397429/detection-of-the-adamkiewicz-artery-in-computed-tomography-of-the-thorax-and-abdomen
#6
Maciej Guziński, Maciej Bryl, Katarzyna Ziemińska, Kamila Wolny, Marek Sąsiadek, Jerzy S Garcarek
BACKGROUND: The great anterior radiculomedullary artery, also known as the artery of Adamkiewicz (AKA), is a small-caliber vessel which arises from the intercostal or lumbar arteries branching out from the aorta. OBJECTIVES: The aim of this study was to evaluate detection of the AKA, as well as its level and side of origin, with multi-slice contrast enhanced computed tomography (MSCT) of the abdomen and thorax performed during everyday clinical practice, and to compare the results with the literature...
January 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28391267/a-clinical-and-radiological-approach-to-the-management-of-benign-mesenchymal-sinonasal-tumors
#7
Lukas Anschuetz, Melanie Buchwalder, Matthias Dettmer, Marco D Caversaccio, Franca Wagner
PURPOSE: Benign mesenchymal sinonasal neoplasms (BMSN) are rare and histologically heterogeneous. Differential diagnosis, appropriate management, and outcome are still a matter of debate. The aim of this study is to provide evidence for further refinement of assessment and treatment in the future. PROCEDURES: We retrospectively reviewed data on 93 patients with neuroradiologically verified BMSN treated at our university reference center during the past 22 years...
April 8, 2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28389991/genotype-phenotype-correlation-in-18-egyptian-patients-with-glutaric-acidemia-type-i
#8
Ahmed Mosaeilhy, Magdy M Mohamed, George Priya Doss C, Heba S A El Abd, Radwa Gamal, Osama K Zaki, Hatem Zayed
Glutaric acidemia I (GAI) is an autosomal recessive metabolic disease caused by a deficiency of glutaryl-CoA dehydrogenase enzyme (GCDH). Patients with GAI are characterized by macrocephaly, acute encephalitis-like crises, dystonia and frontotemporal atrophy. In this study, we investigated 18 Egyptian patients that were diagnosed with GAI based on their clinical, neuroradiological, and biochemical profiles. Of the 18 patients, 16 had developmental delay and/or regression, dystonia was prominent in 75% of the cases, and three patients died...
April 7, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28377255/safety-of-superior-petrosal-vein-sacrifice-during-microvascular-decompression-of-the-trigeminal-nerve
#9
Omar N Pathmanaban, Frazer O'Brien, Yahia Z Al-Tamimi, Charlotte L Hamerbeck-Ward, Scott A Rutherford, Andrew T King
BACKGROUND: Microvascular decompression (MVD) is a safe and effective treatment for trigeminal neuralgia (TGN). Cerebellar venous infarction is a complication associated with surgical sacrifice of the superior petrosal vein (SPV). The SPV intervenes between the trigeminal nerve and the surgeon. Optimal exposure of the cisternal trigeminal nerve, particularly at the brain stem, can be achieved by sacrificing the SPV. We analysed a cohort of 224 patients to determine the frequency of cerebellar venous infarction...
April 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28375045/thrombectomy-accessibility-after-transfer-from-a-primary-stroke-center-analysis-of-a-three-year-prospective-registry
#10
Denis Sablot, Nicolas Gaillard, Philippe Smadja, Jean-Marie Bonnec, Alain Bonafe
Background No comprehensive study exists about mechanical thrombectomy accessibility for patients admitted to a primary stroke center without onsite interventional neuroradiology service. Aims To evaluate mechanical thrombectomy accessibility within 6 h after transfer from a primary stroke center to a distant (156 km apart; 1.5 h by car) comprehensive stroke center. Methods Analysis of data collected in a three-year prospective registry on patients admitted to a primary stroke center within 4.5 h after symptom onset and selected for transfer to a comprehensive stroke center for mechanical thrombectomy...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28374256/analysis-of-magnetic-resonance-imaging-findings-of-children-with-neurologic-complications-after-liver-transplantation
#11
Mehmet Öztürk, İsmail Akdulum, Nurullah Dağ, Ahmet Sığırcı, Serdal Güngör, Sezai Yılmaz
OBJECTIVE: To analyze the magnetic resonance imaging findings in children diagnosed with neurologic complications after liver transplantation (LT). MATERIALS AND METHODS: A total of 39 patients diagnosed with neurologic complications following LT between 2010 and 2016. Neuroradiologic imaging was performed using cranial magnetic resonance imaging (MRI). Descriptive statistics regarding age, gender, type of complication, diagnostic and therapeutic modalities were calculated and presented as number and percentage...
April 3, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28367613/pediatric-neuroradiology-clinical-practice-essentials-asim-f-choudhri-ed-published-by-thieme-medical-publishers-inc-new-york-2017-isbn-978-1-62623-096-5-also-available-as-e-book-eisbn-978-1-62623-097-2
#12
https://www.readbyqxmd.com/read/28360791/familial-adult-onset-alexander-disease-clinical-and-neuroradiological-findings-of-three-cases
#13
Ayşe Deniz Elmali, Ümran Çetinçelik, Civan Işlak, Nurten Uzun Adatepe, Feray Karaali Savrun, Cengiz Yalçinkaya
The adult-onset Alexander disease (AOAD) dramatically differs from the early onset AD with respect to clinical and neuroradiological findings. Herein we report the detailed clinical and neuroradiological findings of a Turkish family with AOAD. In all three cases, magnetic resonance imaging revealed marked atrophy of the mesencephalon, bulbus, and cervical spinal cord accompanied with signal abnormalities in the same regions along with supratentorial white matter. Basal ganglia were affected in two cases. Molecular genetic analysis revealed heterozygous mutation in the 8th exon of the glial fibrillary acidic protein gene M451I (c...
June 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28358248/atypical-choroid-plexus-papilloma-clinicopathological-and-neuroradiological-features
#14
Yu-Zhen Shi, Mao-Zhen Chen, Wei Huang, Li-Li Guo, Xiao Chen, Dan Kong, Ying-Ying Zhuang, Yi-Ming Xu, Rui-Rui Zhang, Gen-Ji Bo, Zhong-Qiu Wang
Background Atypical choroid plexus papilloma (APP) is a rare, newly introduced entity with intermediate characteristics. To date, few reports have revealed the magnetic resonance (MR) findings. Purpose To analyze the clinicopathological and MR features of APP. Material and Methods The clinicopathological data and preoperative MR images of six patients with pathologically proven APP were retrospectively reviewed. The MR features including tumor location, contour, signal intensity, degree of enhancement, intratumoral cysts, and necrosis; and flow voids, borders, peritumoral edema, and associated hydrocephalus were analyzed...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28357547/xlv-neuroradiology-congress-valencia-spain-october-27-29-2016
#15
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Neuroradiology
https://www.readbyqxmd.com/read/28357166/spontaneous-intracranial-hypotension-presenting-as-a-pseudo-chiari-1
#16
Ali S Haider, Suraj Sulhan, Ian T Watson, Dean Leonard, Eliel N Arrey, Umair Khan, Phu Nguyen, Kennith F Layton
Spontaneous intracranial hypotension (SIH) is classified as a decrease in cerebrospinal fluid (CSF) pressure secondary to a CSF leakage and consequent descent of the brain into the foramen magnum. Diagnosing SIH can be difficult due to its overlapping findings with Arnold-Chiari type 1 Malformation (CM1) where the cerebellar tonsils herniate into the foramen magnum. The similarity of both conditions calls for a more reliable imaging technique to localize the CSF leak which could narrow the differential diagnosis and aid in choosing the correct treatment...
February 16, 2017: Curēus
https://www.readbyqxmd.com/read/28347891/intracerebral-masson-s-tumour-a-slow-filling-vascular-lesion-demonstrated-by-indocyanine-green-video-angiography-a-case-report
#17
Veejay Bagga, Ahilan Kailaya-Vasan, Stephen B Wharton, Umang Patel
BACKGROUND: Intravascular papillary endothelial hyperplasia or Massons's tumours are benign vascular lesions which are rarely seen intracranially. The vascular characteristics of these lesions are also unknown. CASE DESCRIPTION: We report a case of a 24 year old male patient with a 3 year history of headache and dizziness. Neuroradiological imaging showed a slow-growing lesion consistent with a low-grade glioma. Intra-operative appearance was of a vascular lesion which was slow-filling as demonstrated with indocyanine green video angiography...
March 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28347285/whole-exome-sequencing-and-digital-pcr-identified-a-novel-compound-heterozygous-mutation-in-the-nphp1-gene-in-a-case-of-joubert-syndrome-and-related-disorders
#18
Shingo Koyama, Hidenori Sato, Manabu Wada, Toru Kawanami, Mitsuru Emi, Takeo Kato
BACKGROUND: Joubert syndrome and related disorders (JSRD) is a clinically and genetically heterogeneous condition with autosomal recessive or X-linked inheritance, which share a distinctive neuroradiological hallmark, the so-called molar tooth sign. JSRD is classified into six clinical subtypes based on associated variable multiorgan involvement. To date, 21 causative genes have been identified in JSRD, which makes genetic diagnosis difficult. CASE PRESENTATION: We report here a case of a 28-year-old Japanese woman diagnosed with JS with oculorenal defects with a novel compound heterozygous mutation (p...
March 27, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28344180/benefit-and-complications-of-frame-based-stereotactic-biopsy-in-old-and-very-old-patients
#19
Johanna Quick-Weller, Julia Tichy, Nazife Dinc, Stephanie Tritt, Sae-Yeon Won, Bedjan Behmanesh, Markus Bruder, Volker Seifert, Lutz Weise, Gerhard Marquardt
OBJECTIVE: Stereotactic biopsy is an everyday procedure implemented in numerous neurosurgical departments. The procedure is performed in order to obtain tumor tissue of unclear diagnosis. Going in hand with low complication rates and high diagnostic yield, stereotactic biopsies can be performed in adults and children likewise for histopathological evaluation of lesions in eloquent localizations. Little is known, however, whether aged patients do benefit from stereotactic biopsy or rather the therapy that is derived from histopathological results...
March 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28335662/performance-of-computed-tomography-angiography-to-determine-anterograde-and-collateral-blood-flow-status-in-patients-with-symptomatic-middle-cerebral-artery-stenosis
#20
Baixue Jia, David S Liebeskind, Ligang Song, Xiaotong Xu, Xuan Sun, Lian Liu, Bo Wang, Zhongrong Miao
Background The purpose of this study was to determine the performance of computed tomography angiography (CTA) by using a scoring system to predict anterograde and collateral blood flow status in patients with symptomatic middle cerebral artery (MCA) stenosis with use of conventional angiography as standard reference. Methods We retrospectively identified all consecutive patients with unilateral symptomatic MCA stenosis in our center who underwent conventional angiography and CTA within 1 month. The anterograde and collateral blood flow (AnCo) scoring system consisted of anterograde score (AnS) and collateral score (CoS)...
January 1, 2017: Interventional Neuroradiology
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