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Clinical Neuroradiology

J Levi Chazen, Travis Stradford, Michael G Kaplitt
Correction to:Clin Neuroradiol 2018 The original version of this article unfortunately contained a mistake. The tagging of the name J. Levi Chazen was incorrect. The correct information is given ….
December 14, 2018: Clinical Neuroradiology
I E Duman, V A Coenen, S Doostkam, H Urbach
No abstract text is available yet for this article.
December 12, 2018: Clinical Neuroradiology
Nico Sollmann, Haosu Zhang, Severin Schramm, Sebastian Ille, Chiara Negwer, Kornelia Kreiser, Bernhard Meyer, Sandro M Krieg
PURPOSE: In patients with supratentorial lesions diffusion tensor imaging fiber tracking (DTI-FT) is increasingly used to visualize subcortical fiber courses. Navigated transcranial magnetic stimulation (nTMS) was applied in this study to reveal specific cortical functions by investigating the particular language errors elicited by stimulation. To make DTI-FT more function-specific, the identified language-positive nTMS spots were used as regions of interest (ROIs). METHODS: In this study 40 patients (mean age 53...
December 5, 2018: Clinical Neuroradiology
Yahui Zhao, Junlin Lu, Qian Zhang, Yan Zhang, Dong Zhang, Rong Wang, Yuanli Zhao
OBJECTIVE: Indirect bypass surgery, which induces spontaneous neoangiogenesis in ischemic brain tissue and improves cerebral blood flow, is an effective treatment for moyamoya disease (MMD). The time course of neoangiogenesis development has not yet been investigated. This study aimed to determine the critical period of neovascularization after indirect bypass in MMD patients. METHODS: Patients with MMD who underwent indirect bypass surgery at Peking University International Hospital between January 2015 and October 2017 were retrospectively reviewed...
December 3, 2018: Clinical Neuroradiology
Xuelei Zhang, Gang Luo, Dapeng Mo, Ning Ma, Feng Gao, Jingyu Zhang, Zhongrong Miao
PURPOSE: To investigate the predictors for good outcome of endovascular therapy (EVT) for patients with acute vertebrobasilar artery occlusion (VBAO) due to intracranial atherosclerosis stenosis (ICAS). METHODS: From April 2012 to February 2018, patients with VBAO due to ICAS who received EVT were retrospectively analyzed. ICAS was defined as fixed stenosis of >70%, or a degree of fixed stenosis >50% in addition to either perfusion impairment or evidence to re-occlusion...
November 29, 2018: Clinical Neuroradiology
Leonard L L Yeo, Amedeo Cervo, Anil Gopinathan, Yang Cunli, Ake Holmberg, Michael Söderman, Staffan Holmin, Pervinder Bhogal, Vamsi Gontu, Anastasios Mpotsaris, Tommy Andersson, Sandra A Cornelissen
BACKGROUND: Studies have shown that the modified thrombolysis in cerebral ischemia (mTICI) 2B score is associated with better functional outcome; however, 50-99% reperfusion is a large range and there may be factors which can differentiate this further. The effects of very late leptomeningeal collaterals (VLLC) on mTICI-2B patients were studied. METHOD: A prospectively collected registry of anterior circulation AIS patients treated with the EmboTrap revascularization device from 2013 to 2016 was evaluated...
November 26, 2018: Clinical Neuroradiology
Sila Ulus, Umit Aksoy Ozcan, Aydan Arslan, Ali Buturak, Alp Dincer, Simay Kara, Ercan Karaarslan
PURPOSE: Acute neck pain can have non-vascular and vascular causes. Some patients present with distinct vascular and perivascular changes on imaging at the site of tenderness. This study aimed to evaluate the imaging findings of transient perivascular inflammation of the carotid artery (TIPIC) syndrome with an emphasis on vessel wall imaging using 3‑Tesla (3-T) high-resolution (HR) magnetic resonance imaging (MRI). METHODS: Clinical data along with diagnostic and follow-up imaging of patients presenting to these hospitals with acute neck pain/tenderness and at least 1 imaging study using color Doppler ultrasound (CDU) and/or MRI including vessel wall imaging from September 2013 through September 2017 were retrospectively evaluated...
November 23, 2018: Clinical Neuroradiology
Anderson Chun On Tsang, Stephanie Lenck, Christopher Hilditch, Patrick Nicholson, Waleed Brinjikji, Timo Krings, Vitor M Pereira, Frank L Silver, Joanna D Schaafsma
PURPOSE: There is increasing use of automated computed tomography perfusion (CTP) to aid thrombectomy decision in emergent large vessel occlusion. It is important to understand the performance of these software packages in predicting ischemic core and tissue-at-risk in the real-world setting. The aim of this study was to evaluate whether ischemic core on non-contrast CT (NCCT) and automated CTP correspond and predict infarct extent after thrombectomy for ischemic stroke. METHODS: Consecutive patients with acute anterior circulation large vessel occlusion undergoing successful thrombectomy (TICI 2b/3) were studied...
November 23, 2018: Clinical Neuroradiology
Gianni Boris Bradac, Fabrizio Venturi, Giovanni Bosco, Domenica Garabello, Mario Coriasco, Guido Stura, Giancarlo Ventilii, Mauro Bergui, Paolo Cerrato
PURPOSE: The acute distal intracranial occlusion of the internal carotid artery (ICA) is a very complex heterogeneous pathology, characterized by various patterns. Aim of this work is to identify the different types and propose a classification. METHODS: Among the patients admitted for stroke in the anterior circulation from august 2014 to October 2017, 46 (25%) presented with intracranial distal carotid artery occlusion. The mean age of the patients was 71 (SD 13...
November 13, 2018: Clinical Neuroradiology
Christian Maegerlein, Maria Teresa Berndt, Sebastian Mönch, Kornelia Kreiser, Tobias Boeckh-Behrens, Manuel Lehm, Silke Wunderlich, Claus Zimmer, Benjamin Friedrich
PURPOSE: First pass complete (mTICI 3) reperfusion must be regarded as the ultimate goal in mechanical thrombectomy (MT) in patients suffering from an emergent large vessel occlusion (ELVO). With this in mind a technical modification of the previously published PROTECT (PRoximal balloon Occlusion TogEther with direCt Thrombus aspiration during stent retriever thrombectomy) approach, the PROTECTPLUS technique was evaluated. Under proximal flow arrest using a balloon guide catheter (BGC), a stent retriever was only partially inserted into a large-bore aspiration catheter...
November 9, 2018: Clinical Neuroradiology
Tomas Dobrocky, Sebastian Bellwald, Rebekka Kurmann, Eike I Piechowiak, Johannes Kaesmacher, Pascal J Mosimann, Felix Zibold, Simon Jung, Marcel Arnold, Urs Fischer, Jan Gralla, Pasquale Mordasini
BACKGROUND AND PURPOSE: Mechanical thrombectomy is an effective recanalization technique in acute ischemic stroke patients with large vessel occlusions; however, it is unclear to what extent stent retriever thrombectomy may be applicable to occlusions of smaller peripheral cerebral vessels. The outcome of patients with isolated M2 occlusions treated with the Mindframe Capture low profile (LP) stent retriever was reviewed. MATERIAL AND METHODS: A retrospective review of prospectively collected data on all consecutive patients treated for isolated M2 occlusions between June 2013 and December 2017 using the Mindframe Capture LP was performed...
November 9, 2018: Clinical Neuroradiology
Christine A Meadows, Andrew Carlson, Peter Vorobieff
No abstract text is available yet for this article.
November 6, 2018: Clinical Neuroradiology
Anja Örgel, Georg Bier, Florian Hennersdorf, Hardy Richter, Ulrike Ernemann, Till-Karsten Hauser
PURPOSE: To evaluate the potential benefit in image quality of the iterative reconstruction (IR) technique advanced modelled iterative reconstruction (ADMIRE) in CT angiography (CTA) of supra-aortic arteries compared to sinogram affirmed iterative reconstruction (SAFIRE) and standard filtered back projection (FBP) in one patients' group. METHODS: In this study 29 patients underwent standard CTA of supra-aortic arteries. Images were reconstructed using three different reconstruction algorithms, FBP, and IR techniques ADMIRE and SAFIRE...
November 5, 2018: Clinical Neuroradiology
Julien Denis, Volodia Dangouloff-Ros, Graziella Pinto, Isabelle Flechtner, Marie Piketty, Dinane Samara, Raphael Levy, David Grévent, Anne-Elodie Millischer, Francis Brunelle, Vincent Prevot, Michel Polak, Nathalie Boddaert
PURPOSE: To evaluate a non-invasive method to assess the progressivity of idiopathic central precocious puberty (CPP) by quantifying perfusion of the pituitary stalk with arterial spin labeling (ASL) and using the gonadotropin-releasing hormone (GnRH) test as a reference test to define progressive CPP. METHODS: In a single center retrospective study, 52 consecutive patients, observed between October 2015 and April 2017 and referred with early signs of puberty, were evaluated using the GnRH test and cerebral magnetic resonance imaging (MRI)...
November 5, 2018: Clinical Neuroradiology
Bianzhi Xing, Stéphanie Lenck, Timo Krings, Jin Hengwei, Cheryl S Jaigobin, Joanna D Schaafsma
PURPOSE: This study aimed to assess the evolution of imaging patterns over time in patients with neurological complications caused by reversible cerebral vasoconstriction syndrome. METHODS: A total of 24 consecutive patients with reversible cerebral vasoconstriction syndrome presenting between 2009 and 2016 were included, whose disease course was complicated by intracranial hemorrhage and/or ischemic events. In total 55 angiographic studies were carried out. The nature of the intracranial complication and location of vasoconstriction on the angiograms in relation to the time interval since symptom-onset were assessed...
November 2, 2018: Clinical Neuroradiology
Sanghyeon Kim, Hee Jin Kwon, Eun-Ju Kang, Dong Won Kim
PURPOSE: The purpose of this study was to evaluate the structural integrity of the auditory neural pathway in patients with unilateral sensorineural hearing loss using quantitative diffusion-tensor tractography. METHODS: Diffusion-tensor tractography imaging was performed using a 3T magnetic resonance imaging system to evaluate structural alterations in the auditory neural pathway of patients with unilateral sensorineural hearing loss. The two diffusion-tensor tractography parameters, fractional anisotropy and the apparent diffusion coefficient were compared between the ipsilateral side and the contralateral side in patients and controls...
October 29, 2018: Clinical Neuroradiology
Bertie Geng, Xiao Wu, Ajay Malhotra
No abstract text is available yet for this article.
October 19, 2018: Clinical Neuroradiology
Direnç Özlem Aksoy, Jülide Canan Umurhan Akkan, Alpay Alkan, Ayşe Aralaşmak, Hafize Otçu Temur, İsmail Yurtsever
PURPOSE: The aim of the study was to investigate any metabolic changes on magnetic resonance spectroscopy (MRS) throughout the visual pathway of the brain in patients with glaucoma and a control group and correlate the results with clinical findings. MATERIAL AND METHODS: A total of 87 patients were enrolled in the study, 30 healthy controls, 25 glaucoma, 16 suspected glaucoma (GS) and 16 ocular hypertension (OHT) patients. A single voxel MRS on TE 30 ms was performed by placing the volume of interest (VOI) on the corpus geniculatum laterale (CGL) and primary visual cortex (VC)...
October 5, 2018: Clinical Neuroradiology
C A Taschner, O Staszewski, C Fung, H Urbach, C P Simon-Gabriel, M Prinz
No abstract text is available yet for this article.
December 2018: Clinical Neuroradiology
Martin Wiesmann
No abstract text is available yet for this article.
December 2018: Clinical Neuroradiology
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