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Clinical Neuroradiology

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https://www.readbyqxmd.com/read/28382379/posttreatment-dsc-mri-is-predictive-of-early-treatment-failure-in-children-with-supratentorial-high-grade-glioma-treated-with-erlotinib
#1
John T Lucas, Brendan J Knapp, Jinsoo Uh, Chia-Ho Hua, Thomas E Merchant, Scott N Hwang, Zoltan Patay, Alberto Broniscer
BACKGROUND AND PURPOSE: The role of perfusion imaging in the management of pediatric high grade glioma is unclear. We evaluated the ability of dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) to determine grade, evaluate post-treatment response and predict treatment failure. MATERIAL AND METHODS: In this study 22 patients with high-grade glioma underwent biopsy and were treated with concurrent and sequential radiotherapy and erlotinib as part of a phase I/II clinical trial (NCT00124657)...
April 5, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28378026/considerations-on-the-relevance-of-cerebral-fusiform-aneurysms-observed-during-hiv-infection
#2
Bruno Law-Ye, Robert-Yves Carlier, Raphaël Richard, Raphaël Blanc, Claire Jourdan, Pierre de Truchis, Flore Viry, Didier Dormont, Delphine Leclercq, Frédéric Clarençon
Human immunodeficiency virus (HIV)-associated ectatic cerebral vasculitis (HIV-AECV) is a rare form of vasculitis with diffuse fusiform aneurysms. Its pathophysiology remains poorly understood. Although extensively described in children, it is still incompletely studied in adults. Our objective was to present five adult cases with emphasis on imaging findings and long-term evolution. From 2006 to 2014, we included 5 HIV-infected patients presenting with fusiform cerebral aneurysms. Vessels abnormalities were assessed with brain computed tomography (CT) angiography, magnetic resonance angiography (MRA) and/or digital subtraction angiography (DSA)...
April 4, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28352979/time-resolved-3d-rotational-angiography-4d-dsa-of-the-lenticulostriate-arteries-display-of-normal-anatomic-variants-and-collaterals-in-cases-with-chronic-obstruction-of-the-mca
#3
S Kammerer, M Mueller-Eschner, J Berkefeld, S Tritt
PURPOSE: The lenticulostriate arteries (LSA) and other perforators may play a role for collateral supply in cases with ischemia due to stenosis or occlusions of the middle cerebral artery (MCA). Purpose of this case series was to evaluate the potential of time-resolved 3D rotational angiography data sets (4D DSA) for detailed visualization of anatomic variants of LSA feeders and for display of local collaterals involving the LSA in cases with chronic MCA obstruction. METHODS: Multiplanar and volume rendering reconstructions of 4D DSA data were computed in addition to standard postprocessing in 24 patients who had indications for 3D rotational angiography (3DRA) of the internal carotid artery (ICA) without pathologies of the ICA, middle cerebral artery (MCA) and anterior cerebral artery (ACA) main stems (n = 18) or with stenosis or chronic occlusion of the MCA (n = 6)...
March 28, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28352978/transcranial-sonography-in-mitochondrial-membrane-protein-associated-neurodegeneration
#4
Marta Skowronska, Tomasz Kmiec, Anna Czlonkowska, Iwona Kurkowska-Jastrzębska
INTRODUCTION: Although the nature of basal ganglia hyperechogenicity in transcranial sonography (TCS) examinations remains unclear, many studies have shown associations between hyperechogenicity and iron accumulation. The role of iron in basal ganglia hyperechogenicity raises interest in the use of TCS in forms of neurodegeneration with brain iron accumulation (NBIA). Here we analyzed TCS and magnetic resonance imaging (MRI) findings among patients affected by one type of NBIA, mitochondrial membrane protein-associated neurodegeneration (MPAN)...
March 28, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28321460/complication-risk-factors-in-anterior-choroidal-artery-aneurysm-treatment
#5
Arthur André, Anne-Laure Boch, Federico Di Maria, Aurélien Nouet, Nader Sourour, Stéphane Clémenceau, Joseph Gabrieli, Vincent Degos, Chiheb Zeghal, Jacques Chiras, Philippe Cornu, Frédéric Clarençon
OBJECT: The anterior choroidal artery (AChoA) is a rare location for intracranial aneurysms. The treatment of these aneurysms may be challenging due to the risk of occlusion of such a small and eloquent artery as the AChoA. We aimed to evaluate the risk factors for complications in AChoA aneurysm treatment. METHODS: We retrospectively analyzed 47 consecutive AChoA aneurysms in 40 patients treated in our institution from 1999 and 2014 by endovascular means (87%) or surgical clipping (13%)...
March 20, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28314911/teaching-neuroimages-obscured-cerebral-infarction-on-mri
#6
Masaaki Hori, Ryusuke Irie, Michimasa Suzuki, Shigeki Aoki
No abstract text is available yet for this article.
March 17, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28289757/optimization-of-the-surgical-approach-in-avms-using-mri-and-4d-dsa-fusion-technique-a%C3%A2-technical-note
#7
S Tritt, B Ommer, S Gehrisch, S Klein, V Seifert, J Berkefeld, J Konczalla
PURPOSE: Previously published data demonstrated the possibility of displaying the angioarchitecture of intracranial vascular malformations using time-resolved 3D imaging (4D digital subtraction angiography [DSA]). The purpose of our study was to prove the technical feasibility of creating fused images of time-resolved 3D reconstructions and MPRAGE MRI data sets and to check the reliability of the correct anatomical display of the angioma nidus and the venous drainage in the fused images of patients with intracranial arteriovenous malformations (AVM)...
March 13, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28289756/predictive-value-of-pooled-cerebral-blood-volume-mapping-for-final-infarct-volume-in-patients-with-major-artery-occlusions-a%C3%A2-retrospective-analysis
#8
Lauma Ava, Joachim Berkefeld, Arne Lauer, Alexander Seiler, Waltraud Pfeilschifter, Monika Müller-Eschner, Se-Jong You, Stefan Weidauer, Ulrich Pilatus, Marlies Wagner
PURPOSE: Detection of ischemic core and collateral status is helpful to predict clinical success of thrombectomy in acute cerebral artery occlusion. Angiographic flat panel detector computed tomography (CT) with pooled blood volume (PBV) data acquisition was described to be helpful to estimate ischemic core in stroke patients prior to thrombectomy and to depict cerebral vessels. We therefore retrospectively evaluated preinterventional PBV data of a large collective of ischemic stroke patients prior to thrombectomy to test its predictive value on final infarct considering PBV maps and collateral status...
March 13, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28271160/one-stop-management-in-acute-stroke-first-mothership-patient-transported-directly-to-the-angiography-suite
#9
Marios-Nikos Psychogios, Mathias Bähr, Jan Liman, Michael Knauth
No abstract text is available yet for this article.
March 7, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28265679/flairfusion-processing-with-contrast-inversion-improving-detection-and-reading-time-of-new-cerebral-ms-lesions
#10
M A Schmidt, R A Linker, S Lang, H Lücking, T Engelhorn, S Kloska, M Uder, A Cavallaro, A Dörfler, P Dankerl
PURPOSE: To evaluate the performance of an innovative image processing approach for detection of T2-weighted hyperintense multiple sclerosis (MS) lesions. METHODS: In this study 20 consecutive patients with inflammatory demyelinating lesions were retrospectively evaluated of whom 10 patients featured progressive disease and 10 a stable lesion load. 3 mm transversal FLAIRfusion imaging was processed and archived. Image processing was performed through landmark-based 3D co-registration of the previous and current isotropic FLAIR examination followed by inversion of image contrast...
March 6, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28258282/evaluation-of-auditory-pathways-using-dti-in-patients-treated-with-gamma-knife-radiosurgery-for-acoustic-neuroma-a%C3%A2-preliminary-report
#11
Serpil Kurtcan, Mustafa Aziz Hatiboglu, Alpay Alkan, Huseyin Toprak, Mehmet Hakan Seyithanoglu, Ayse Aralasmak, Bahar Atasoy, Omer Uysal
PURPOSE: We aimed to evaluate the change in bilateral auditory pathways using diffusion tensor imaging (DTI) after gamma knife radiosurgery (GKR) and to determine the relationship between the radiosurgical treatment variables and DTI findings. METHODS: In this study 13 patients with unilateral acoustic neuroma and 11 controls underwent routine magnetic resonance imaging (MRI) and DTI. The apparent diffusion coefficient (ADC) and fractional anisotropy (FA) were measured from the bilateral auditory pathways in all individuals before and after GKR...
March 3, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28258281/radiological-findings-of-two-sisters-with-aceruloplasminemia-presenting-with-chorea
#12
H K Kim, C S Ki, Y J Kim, M S Lee
No abstract text is available yet for this article.
March 3, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28255606/reversal-of-ct-hypodensity-in-chronic-ischemic-stroke-a%C3%A2-different-kind-of-fogging
#13
Matthias P Fabritius, Philipp M Kazmierczak, Kolja M Thierfelder, Wolfgang G Kunz
No abstract text is available yet for this article.
March 2, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28194477/maximizing-first-pass-complete-reperfusion-with-save
#14
Volker Maus, Daniel Behme, Christoph Kabbasch, Jan Borggrefe, Ioannis Tsogkas, Omid Nikoubashman, Martin Wiesmann, Michael Knauth, Anastasios Mpotsaris, Marios Nikos Psychogios
BACKGROUND: Endovascular techniques for treatment of large vessel occlusions (LVO) in patients with acute ischemic stroke (AIS) have advanced in recent years. We report a multicenter experience using a combined aspiration and stent retriever technique for mechanical thrombectomy (MT). METHODS: We retrospectively analyzed 32 consecutive MT patients using a novel, combined approach of Stent retriever Assisted Vacuum-locked Extraction (SAVE) by 3 operators at 3 stroke centers...
February 13, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28184950/orbital-cellulitis-with-apparent-thrombosis-of-the-left-cavernous-sinus-and-perioptical-abscess-formation
#15
B E Grüter, A Pangalu, K Landau, W Wichmann
No abstract text is available yet for this article.
February 9, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28150223/growth-of-untreated-unruptured-small-sized-aneurysms-%C3%A2-%C2%BA7mm-incidence-and-related-factors
#16
Hyun Ho Choi, Young Dae Cho, Jin Pyeong Jeon, Dong Hyun Yoo, Jusun Moon, Jeongjun Lee, Hyun-Seung Kang, Won-Sang Cho, Jeong Eun Kim, Li Zhang, Moon Hee Han
PURPOSE: The need to treat small (<7 mm) unruptured aneurysms is still controversial, despite data collected through several large cohort studies. Such lesions typically are incidental findings, usually followed for potential growth through serial imaging. For this study, growth estimates for untreated unruptured small-sized aneurysms were generated, examining incidence and related risk factors. METHODS: A cohort of 135 consecutive patients harboring 173 untreated unruptured small-sized aneurysms (<7 mm) was subjected to extended monitoring (mean, 73...
February 1, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28144702/endovascular-thrombectomy-in-acute-ischemic-stroke-outcome-in-referred-versus-directly-admitted-patients
#17
Philipp Bücke, Marta Aguilar Pérez, Elisabeth Schmid, Christian H Nolte, Hansjörg Bäzner, Hans Henkes
PURPOSE: Endovascular mechanical thrombectomy (mTE) in acute ischemic stroke due to large cerebral artery occlusion is effective and safe. The procedure is currently offered by specialized hospitals. Physicians from smaller hospitals need to refer patients to stroke centers. Secondary referrals involve delays for transportation. Little is known about effects of distant referrals on outcome and complications as compared to direct admittance. METHODS: To evaluate the effects of referral patterns on outcome and safety, we analyzed 941 patients with anterior circulation stroke receiving mTE between January 2010 and December 2015...
January 31, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28130565/freiburg-neuropathology-case-conference-a%C3%A2-cystic-lesion-of-the-cerebellum-in-an-adolescent
#18
C A Taschner, D Erny, B Sajonz, H Urbach, K Guggenberger, M Prinz
No abstract text is available yet for this article.
January 27, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28124072/the-time-reset-effect-thrombectomy-trials-challenge-the-existence-of-a%C3%A2-time-window
#19
EDITORIAL
Jens Fiehler
No abstract text is available yet for this article.
January 25, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28124071/siesta-thrombectomy-as-you-like
#20
EDITORIAL
Martin Bendszus
No abstract text is available yet for this article.
January 25, 2017: Clinical Neuroradiology
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