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Hyunjung Yeoh, Ji Young Lee, Young-Jun Lee, Dong Woo Park, Tae Yoon Kim, Ga Young Ahn, Sang-Cheol Bae, Young Seo Kim, Hyun Young Kim, Chun K Kim, Ji Young Kim, Haejin Kim, Ji Won Han
PURPOSE: White matter hyperintensities (WMH) and cerebral microbleeds (CMBs) are known to be associated with small vessel diseases (SVD) and neuroinflammation. The purpose was to investigate the relationship between CMBs and WMH in patients with systemic lupus erythematosus (SLE). METHODS: Thirty-one SLE patients with WMH and 27 SLE patients with normal brain MRI were compared. The presence, location, and grading of CMBs were assessed using susceptibility-weighted images...
November 10, 2018: Neuroradiology
Johan Van Goethem
No abstract text is available yet for this article.
November 10, 2018: Neuroradiology
Stephen F Kralik, Nucharin Supakul, Isaac C Wu, Gaspar Delso, Rupa Radhakrishnan, Chang Y Ho, Karen A Eley
PURPOSE: The purpose of this study was to determine the accuracy of "black bone" (BB) MRI for the detection of skull fractures in children with potential abusive head trauma. METHODS: A total of 34 pediatric patients were evaluated for potential abusive head trauma. All patients had both a non-contrast head CT (HCT) with multiplanar reformatted images and 3D volumetric reformatted images where available (gold standard) for fracture diagnosis and BB of the head with multiplanar reformatted images and 3D volumetric images...
November 7, 2018: Neuroradiology
Charlie Chia-Tsong Hsu, E Mark Haacke, Chinthaka Heyn, Kosuke Kato, Trevor William Watkins, Timo Krings
No abstract text is available yet for this article.
November 7, 2018: Neuroradiology
Xiaoyi Chen, Jian Wang, Yang Liu, Yongbo Yang, Fei Zhou, Xueping Li, Bing Zhang, Xihai Zhao
PURPOSE: To investigate the association between proximal internal carotid artery (ICA) luminal narrowing and diffuse wall thickening (DWT) in ipsilateral petrous ICA in moyamoya disease (MMD) patients. METHODS: Forty-one MMD (mean age 42.8 ± 11.0 years, 19 males) and 36 atherosclerotic patients (mean age 61.5 ± 7.1 years, 31 males) and 41 healthy controls were recruited and underwent carotid MR vessel wall imaging. The luminal narrowing of proximal ICA was evaluated by the diameter ratio of ICA to common carotid artery (DRICA/CCA )...
November 6, 2018: Neuroradiology
Byung Hyun Baek, Woong Yoon, Yun Young Lee, Ilwoo Park, Seul Kee Kim
PURPOSE: Acute infarction confined to the basal ganglia (BG) is occasionally observed on baseline imaging before endovascular thrombectomy. This study aimed to investigate the impact of isolated BG infarction revealed on pretreatment DWI in a large cohort of patients with acute anterior circulation stroke who underwent thrombectomy. METHODS: We retrospectively analyzed clinical and DWI data from 328 patients who underwent thrombectomy for emergent occlusions of the intracranial internal carotid artery or the middle cerebral artery...
November 6, 2018: Neuroradiology
Ebba Beller, Daniel Keeser, Antonia Wehn, Berend Malchow, Temmuz Karali, Andrea Schmitt, Irina Papazova, Boris Papazov, Franziska Schoeppe, Giovanna Negrao de Figueiredo, Birgit Ertl-Wagner, Sophia Stoecklein
PURPOSE: Development of a warp-based automated brain segmentation approach of 3D fluid-attenuated inversion recovery (FLAIR) images and comparison to 3D T1-based segmentation. METHODS: 3D FLAIR and 3D T1-weighted sequences of 30 healthy subjects (mean age 29.9 ± 8.3 years, 8 female) were acquired on the same 3T MR scanner. Warp-based segmentation was applied for volumetry of total gray matter (GM), white matter (WM), and 116 atlas regions. Segmentation results of both sequences were compared using Pearson correlation (r)...
November 6, 2018: Neuroradiology
Waleed Brinjikji, Giuseppe Lanzino
No abstract text is available yet for this article.
October 31, 2018: Neuroradiology
Rüdiger von Kummer
No abstract text is available yet for this article.
October 31, 2018: Neuroradiology
Rajendra Nath Ghosh, Sameer Vyas, Paramjeet Singh, Niranjan Khandelwal, Naveen Sankhyan, Pratibha Singhi
PURPOSE: Tuberculoma and neurocysticercosis (NCC) are two of the most common intracranial infections in developing countries and cause of seizures or focal neurological deficit. They often present on neuroimaging as ring-enhancing lesions, and in absence of typical imaging features, can cause significant diagnostic dilemma. Differentiation is extremely important to avoid empirical exposure to anti-tubercular treatment or nonspecific treatment causing disease progression. The aim our study was to evaluate the MR perfusion characteristics of brain tuberculoma and NCC and to assess the potential role of the perfusion in differentiating the two entities...
October 30, 2018: Neuroradiology
Francesca Arena, Paola Bardini, Francesco Blasi, Eliana Gianolio, Giada M Marini, Francesca La Cava, Giovanni Valbusa, Silvio Aime
PURPOSE: The discussed topic about gadolinium-based contrast agents (GBCA) safety has recently been revived due to the evidence of hyperintensities observed in the dentate nucleus (DN) and globus pallidus (GP) in the brain of patients with normal kidney function. Several preclinical studies have been conducted to understanding how the use of GBCAs can promote the gadolinium deposition in the brain. Here, we evaluate the impact of chronic cerebral hypoperfusion on gadolinium presence. METHODS: T1 hyperintensities and BBB integrity were evaluated by MRI in chronically hypoperfused and healthy rats injected with either gadodiamide or hypertonic saline...
October 30, 2018: Neuroradiology
Mayank Goyal, Mohammed A Almekhlafi, Christoph Cognard, Ryan McTaggart, Kristine Blackham, Alessandra Biondi, Aad van der Lugt, Charles B L M Majoie, Wim H van Zwam, H Bart van der Worp, Michael D Hill
No abstract text is available yet for this article.
October 25, 2018: Neuroradiology
Aristides A Capizzano, Hiroto Kawasaki, Rup K Sainju, Patricia Kirby, John Kim, Toshio Moritani
PURPOSE: To assess imaging, clinical, and pathological features of mesial temporal lobe epilepsy (mTLE) patients with amygdala enlargement (AE) in comparison with those with mesial temporal sclerosis (MTS). METHODS: Clinical, imaging, and pathologic features were retrospectively reviewed in 40 mTLE patients with postoperative follow-up (10 with AE and 30 with MTS). The volumes and signal intensity of the amygdala and hippocampus were assessed in 10 AE, 10 age- and sex-matched MTS patients, and 12 controls (HC)...
October 23, 2018: Neuroradiology
Hyon-Jo Kwon, Jong Wook Shin, Bum Soo Park, Jeong-Wook Lim, Hye Seon Jeong, Hee-Jung Song, Jei Kim, Hyeon-Song Koh
We report our initial experience of using a microcatheter for contact aspiration of acute distal occlusions for recanalization. Endovascular technique and a case using Excelsior XT-27 microcatheter are presented. After manual suction within distal middle cerebral artery segments using a 50-ml syringe, instant and complete recanalization was obtained. Microcatheter suction thrombectomy using a 50-ml syringe can be considered a feasible treatment option for acute distal small artery occlusions.
October 18, 2018: Neuroradiology
Evelien E de Vries, Vanessa E C Pourier, Constance J H C M van Laarhoven, Evert J Vonken, Joost A van Herwaarden, Gert J de Borst
PURPOSE: Increased arterial tortuosity has been suggested as a predisposing factor for carotid artery dissection, which is an important risk factor for development of extracranial carotid artery aneurysms (ECAA). Prior to comparison with non-ECAA controls, the optimal measurement technique should be defined. This study describes the difference between software packages in terms of reproducibility and absolute outcome of arterial tortuosity measurements in ECAA patients. METHODS: CT-angiography analysis was performed on 12 ECAA patients selected from our registry, using four software packages: 3mensio Vascular, TeraRecon, Vital Images, and Aycan OsiriX PRO...
October 18, 2018: Neuroradiology
Sungjoon Lee, Doo Young Kim, Su Bin Kim, Woojin Kim, Mi-Ri Kang, Hye-Jin Kim, Ki Hwa Lee, Minwook Yoo, Byung-Sam Choi, Jung Soo Kim, Sun-Il Lee, Hae Yu Kim, Sung-Chul Jin
PURPOSE: Forms of intraoperative neurophysiologic monitoring (IONM), including somatosensory evoked potentials (SSEPs) and motor evoked potentials (MEPs), have been widely used in the field of neurosurgery. This study aimed to evaluate the diagnostic efficacy of IONM in identifying intraoperative events and predicting postoperative neurologic deficits in neurovascular intervention. METHODS: From January 2013 to December 2016, we retrospectively reviewed patients who underwent neurovascular intervention under general anesthesia with the use of IONM...
October 17, 2018: Neuroradiology
Giulia Perucca, Bruno P Soares, Serena Staglianò, James Davison, Anupam Chakrapani, Felice D'Arco
Gaucher disease (GD) represents the most common lysosomal storage defect. It is classified into three phenotypes: type 1 non-neuronopathic, type 2 acute neuronopathic, and type 3 subacute/chronic neuronopathic. Although children affected by GD may present with a broad spectrum of neurological signs, brain magnetic resonance imaging (MRI) findings are usually normal or non-specific. We report three cases of GD with previously undescribed brain MRI changes mainly affecting the thalami and/or the dentate nuclei...
October 17, 2018: Neuroradiology
Joji Inamasu, Masahiro Kato
PURPOSE: Seatbelts and airbags are the most important devices protecting drivers from cervical spine injury (CSI) following motor vehicle collisions (MVCs). However, there have been few reports on the radiographic characteristics of CSI sustained by restrained, airbag-deployed drivers. METHODS: A single-center, retrospective observational study was conducted using prospectively acquired data. Between January 2011 and December 2017, 564 restrained drivers, whose vehicle had been severely damaged in MVCs, underwent whole-body computed tomography for evaluation of bodily injuries...
October 12, 2018: Neuroradiology
Alessandro Pedicelli, Margherita Bartocci, Emilio Lozupone, Francesco D'Argento, Andrea Alexandre, Giuseppe Garignano, Ciro D'Alò, Viola Giacobbe, Iacopo Valente, Cesare Colosimo
PURPOSE: Brain death (BD) is defined as the irreversible destruction of all brain functions. It is usually diagnosed through a clinical examination, but in certain circumstances, ancillary examinations (such as digital subtraction angiography (DSA), transcranial color Doppler (TCD), computed tomography angiography (CTA), magnetic resonance angiography (MRA), or radionuclide scanning) are required as confirmatory tests. In many countries, cervical color Doppler sonography (CCD) is not recognized as a valid test...
October 11, 2018: Neuroradiology
Teresa A Ferreira, P Saraiva, S W Genders, M V Buchem, G P M Luyten, J-W Beenakker
PURPOSE: Orbital inflammation can be idiopathic or in the context of a specific disease and it can involve different anatomical orbital structures. On imaging, inflammatory disease is frequently mistaken for infection and malignant tumors, and its underlying cause is often not determined. Through this article we aim to improve orbital inflammation diagnosis and underlying inflammatory diseases recognition. METHODS: The imaging protocols and characteristics of orbital inflammation were reviewed...
October 11, 2018: Neuroradiology
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