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Clinical Neuroradiology

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https://www.readbyqxmd.com/read/29922902/iterative-algorithms-applied-to-treated-intracranial-aneurysms
#1
Aikaterini Fitsiori, Steve Philippe Martin, Alix Juillet De Saint Lager, Joanna Gariani, Karl-Olof Lovblad, Xavier Montet, Maria Isabel Vargas
PURPOSE: To investigate the impact of iterative metal artifact reduction (iMAR) on artifacts related to neurosurgical clips or endovascular coils when combined to filtered back projection (FBP) or advanced modelled iterative reconstruction (ADMIRE). MATERIAL AND METHODS: In this study 21 unenhanced brain computed tomography (CT) examinations were reconstructed with FBP and level 2 of ADMIRE, both techniques with and without iMAR algorithm, resulting in 4 series per acquisition...
June 19, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29858609/high-resolution-mri-of-vestibulocochlear-nerve-involvement-by-a-posterior-fossa-ganglioglioma-case-report-and-review-of-literature
#2
Bárbara Trapp, Charlie Chia-Tsong Hsu, Jyoti Panwar, Timo Krings
No abstract text is available yet for this article.
June 1, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29845367/intracranial-stenting-after-failure-of-thrombectomy-with-the-embotrap-%C3%A2-device
#3
Sandra A Cornelissen, Tommy Andersson, Ake Holmberg, Patrick A Brouwer, Michael Söderman, Pervinder Bhogal, Leonard L L Yeo
BACKGROUND: Approved alternatives in the guidelines for acute ischemic stroke patients who have failed intracranial thrombectomy are lacking. Primary permanent intracranial stenting was initially used in the era before thrombectomy and might still be a useful rescue treatment in acute stroke patients suffering from ongoing large vessel occlusion refractory to thrombectomy. METHODS: The prospectively collected registry of patients with acute stroke caused by large vessel occlusions and treated with the emboTrap® device in Karolinska Hospital from October 2013 through March 2017 were retrospectively reviewed...
May 29, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29777292/transpopliteal-access-for-intraoperative-spinal-angiography-with-combined-percutaneous-treatment-of-spinal-hemangioma
#4
Sudhakar R Satti, Dharti Dua, Ansar Z Vance
No abstract text is available yet for this article.
May 18, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29777291/growth-of-asymptomatic-intracranial-fusiform-aneurysms-incidence-and-risk-factors
#5
Jusun Moon, Young Dae Cho, Dong Hyun Yoo, Jeongjun Lee, Hyun-Seung Kang, Won-Sang Cho, Jeong Eun Kim, Li Zhang, Moon Hee Han
PURPOSE: Growth of intracranial fusiform aneurysms (IFA) may become clinically problematic through a mass effect or rupture. We investigated the growth rate and factors contributing to growth in asymptomatic untreated IFA. METHOD: As a retrospective review, we assessed patients diagnosed with asymptomatic IFA between August 2000 and September 2014, all untreated. No acute or symptomatic dissecting lesions were considered. Clinical and serial angiographic follow-up data were analyzed, defining growth as expansion > 2 mm in one or more dimensions...
May 18, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29761219/intracranial-rescue-stent-angioplasty-after-stent-retriever-thrombectomy-multicenter-experience
#6
Robert Forbrig, Hannah Lockau, Fabian Flottmann, Tobias Boeckh-Behrens, Christoph Kabbasch, Maximilian Patzig, Anastasios Mpotsaris, Jens Fiehler, Thomas Liebig, Goetz Thomalla, Oezguer A Onur, Silke Wunderlich, Kornelia Kreiser, Moriz Herzberg, Frank A Wollenweber, Sascha Prothmann, Franziska Dorn
PURPOSE: Stent-retriever thrombectomy (SRT) for acute intracranial large artery occlusion (LAO) may not result in permanent recanalization in rare cases, e.g. due to an underlying stenosis or dissection. In this specific patient group, rescue stent angioplasty (RSA) may be the only treatment option to achieve permanent vessel patency and potentially a good clinical outcome. To date, the experience with RSA is limited. METHODS: In this retrospective analysis, interventional and clinical data of patients with acute intracranial LAO of the anterior and posterior circulation who underwent RSA after SRT due to an underlying lesion between 2012-2017 in four neurovascular centers were studied...
May 14, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29761218/bilateral-inferior-vestibular-nerve-lesion-a-late-neurotoxic-effect-of-liposoluble-myelographic-contrast-agent-case-report-with-imaging-and-electrophysiological-confirmation
#7
Rita Fernandes Sousa, João Levy, Jorge Campos, Leonel Luis
No abstract text is available yet for this article.
May 14, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29752521/dislocation-of-a-web-device-into-the-middle-cerebral-artery-removal-with-the-alligator-retrieval-device
#8
I König, A Weber, W Weber, S Fischer
No abstract text is available yet for this article.
May 11, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29744519/mechanical-thrombectomy-a-brief-review-of-a-revolutionary-new-treatment-for-thromboembolic-stroke
#9
REVIEW
Pervinder Bhogal, Tommy Andersson, Volker Maus, Anastasios Mpotsaris, Leonard Yeo
The recent success of endovascular stroke treatment has heralded a new era in the management of acute ischemic stroke (AIS) with significantly improved outcome for patients. A large number of patients may be amenable to this new treatment and as the evidence expands the number of patients eligible for mechanical thrombectomy continues to increase. Recent evidence suggests that the time window for treatment can be extended up to 24 h after symptom onset for patients with anterior circulation strokes; however, many clinicians and medical professionals may not be aware of these recent changes and it is important that they are kept up-to-date with this rapidly evolving treatment...
May 9, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29744518/the-medical-informatics-consortia-how-does-neuroradiology-benefit
#10
EDITORIAL
Horst Urbach
No abstract text is available yet for this article.
May 9, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29691597/preoperative-digital-subtraction-angiography-in-incidental-unruptured-intracranial-aneurysms-how-much-is-too-much
#11
Moriz Herzberg, Robert Forbrig, Christian Schichor, Hartmut Brückmann, Franziska Dorn
PURPOSE: Digital subtraction angiography (DSA) is deemed necessary to precisely visualize intracranial aneurysms and define individual treatment strategies. In patients with unruptured intracranial aneurysms (UIA) who were diagnosed by MRI, a four-vessel DSA is usually performed to detect additional aneurysms. This study aimed to evaluate whether the evaluation of all vessels beyond the aneurysm-harboring artery is really necessary. MATERIAL AND METHODS: Patients with an UIA that was detected on MRA (TOF/ceMRA) were prospectively included...
April 24, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29671001/cervical-spine-prospective-feasibility-study-dynamic-flexion-extension-diffusion-tensor-weighted-magnetic-resonance-imaging
#12
Bawarjan Schatlo, Luca Remonda, Philipp Gruber, Javier Fandino, Veit Rohde, Ali-Reza Fathi, Jatta Berberat
PURPOSE: Diffusion tensor imaging (DTI) in flexion-extension may serve as a diagnostic tool to improve the sensitivity for detection of myelopathy. In this study, the feasibility and reproducibility of dynamic DTI in the cervical spinal cord was assessed in healthy volunteers and patients. METHODS: All subjects were examined in maximum neck flexion-extension in a 3T magnetic resonance imaging (MRI) scanner. Range of motion, space available for the spinal cord, fractional anisotropy (FA) and apparent diffusion coefficient (ADC) were measured and compared between the neck positions...
April 18, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29663010/septo-optic-dysplasia-assessment-of-associated-findings-with-special-attention-to-the-olfactory-sulci-and-tracts
#13
John C Benson, David Nascene, Charles Truwit, Alexander M McKinney
PURPOSE: Septo-optic dysplasia is a congenital disorder consisting of optic nerve hypoplasia and absent septum pellucidum. While associated anomalies have been described, olfactory sulcus and bulb-tract hypoplasia have been scantily reported and was the focus of this study. METHODS: The picture archival and communications system and radiology information system (PACS-RIS) was searched over 15 years for patients with suspected septo-optic dysplasia (n = 41) and cerebral magnetic resonance imaging (MRI)...
April 16, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29651586/revascularization-techniques-for-acute-basilar-artery-occlusion-technical-considerations-and-outcome-in-the-setting-of-severe-posterior-circulation-steno-occlusive-disease
#14
Eberhard Siebert, Georg Bohner, Sarah Zweynert, Volker Maus, Anastasios Mpotsaris, Thomas Liebig, Christoph Kabbasch
PURPOSE: To describe the clinical and radiological characteristics, frequency, technical aspects and outcome of endovascular treatment of acute basilar artery occlusion (ABO) in the setting of vertebrobasilar steno-occlusive disease. METHODS: Retrospective analysis of databases of two universitary stroke centers including all consecutive patients from January 2013 until May 2017 undergoing thrombectomy for a) acute stroke due to basilar artery occlusion and either significant basilar artery stenosis or vertebral artery stenosis/occlusion as well as b) presumed embolic basilar artery occlusions...
April 12, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29651585/ruptured-fusiform-aneurysm-of-the-anterior-spinal-artery-successful-treatment-with-flow-diverter-stent-placed-in-the-feeding-vertebral-artery
#15
C P Simon-Gabriel, H Urbach, S Meckel
No abstract text is available yet for this article.
April 12, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29696306/freiburg-neuropathology-case-conference-a-painless-mass-lesion-of-the-parietal-and-occipital-bones
#16
C A Taschner, P Süß, F Volz, H Urbach, P Dovi-Akué, M Prinz
No abstract text is available yet for this article.
June 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29052743/letter-to-the-editor-regarding-growth-of-untreated-unruptured-small-sized-aneurysms-7-mm-incidence-and-related-factors
#17
LETTER
Ajay Malhotra, Xiao Wu, Long Tu, Kimberly Seifert
No abstract text is available yet for this article.
June 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28916872/correlation-of-ct-and-histopathology-in-resorption-of-the-distal-long-process-of-the-incus
#18
Katherine L Reinshagen, Joseph B Nadol, Amy F Juliano, Hugh D Curtin
No abstract text is available yet for this article.
June 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29582111/clinical-utility-of-diffusion-weighted-imaging-in-spinal-infections
#19
Rebecca A Dumont, Nayela N Keen, Courtnay W Bloomer, Brian S Schwartz, Jason Talbott, Aaron J Clark, David M Wilson, Cynthia T Chin
PURPOSE: Both laboratory markers and radiographic findings in the setting of spinal infections can be nonspecific in determining the presence or absence of active infection, and can lag behind both clinical symptoms and antibiotic response. Magnetic resonance imaging (MRI) with diffusion-weighted imaging (DWI) has been shown to be helpful in evaluating brain abscesses but has not been commonly used in evaluating spinal infections. We aimed to correlate findings on DWI of the spine to results of microbiological sampling in patients with suspected spinal infections...
March 26, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29572675/cerebral-perforating-artery-disease-characteristics-on-high-resolution-magnetic-resonance-imaging
#20
Jianye Liang, Yiyong Liu, Xiaoshuang Xu, Changzheng Shi, Liangping Luo
PURPOSE: Our aims were to evaluate the feasibility of high-resolution magnetic resonance imaging (HR-MRI) for displaying the cerebral perforating arteries in normal subjects and to discuss the value of HR-MRI for detecting the causes of infarctions in the territory of the lenticulostriate artery (LSA). METHODS: Included in this study were 31 healthy subjects and 28 patients who had infarctions in the territory supplied by the LSA. The T1-weighted imaging (T1WI), T2WI, diffusion-weighted imaging (DWI), and HR-MRI, including 3‑dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) and 3D fast spin-echo T1WI (namely CUBE T1 in GE Healthcare), were applied on a 3-Tesla scanner...
March 23, 2018: Clinical Neuroradiology
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