Structural MRI and tract-based spatial statistical analysis of diffusion tensor imaging in children with hemimegalencephaly
AbstractPurposeTo investigate the gross white matter abnormalities in the structural brain MR imaging as well as white matter microstructural alterations using tract-based spatial statistics (TBSS) analysis of diffusion tensor imaging (DTI) in both affected and contralateral cerebral hemispheres of children with hemimegalencephaly (HMEG).MethodsFrom 2003 to 2019, we retrospectively reviewed brain MR images in 20 children (11 boys, 2  days–16.5 years) with HMEG, focusing on gross white matter abnormalities. DTI was evaluated in 12 patients (8 boys, 3 months–16.5 years) with HMEG and 12 age-, ...
Source: Neuroradiology - July 10, 2020 Category: Radiology Source Type: research

Radiation exposure in endovascular stroke treatment of acute basilar artery occlusions —a matched-pair analysis
AbstractPurposeTo determine the radiation exposure in endovascular stroke treatment (EST) of acute basilar artery occlusions (BAO) and compare it with radiation exposure of EST for embolic middle cerebral artery occlusions (MCAO).MethodsIn this retrospective analysis of an institutional review board −approved prospective stroke database of a comprehensive stroke center, we focused on radiation exposure (as per dose area product in Gy × cm2, median (IQR)), procedure time, and fluoroscopy time (in minutes, median [IQR]) in patients receiving EST for BAO. Patients who received EST for BAO were matche...
Source: Neuroradiology - July 10, 2020 Category: Radiology Source Type: research

Correction to: Decreasing thickness and remodeling of ligamentum flavum after oblique lumbar interbody fusion
In the article"Decreasing Thickness and Remodeling of Ligamentum Flavum After Oblique Lumbar Interbody Fusion ”, Figure 2 captions contained mistakes as descriptions for the Figure sections were not assigned correctly. (Source: Neuroradiology)
Source: Neuroradiology - July 7, 2020 Category: Radiology Source Type: research

Rare neurovascular conflict between oculomotor nerve and posterior communicating artery
We present the case of a 75-year-old man who presented for a 20-year history of transient vertical diplopia. The radiological exams demonstrated the presence of a neurovascular conflict between the right oculomotor nerve and a fetal-type posterior communicating artery. This fetal posterior communicating artery had an aberrant downward course that compressed the third cranial nerve. Few cases of neurovascular conflict interesting the third cranial nerve were described in the literature whom the responsible artery was generally the superior cerebellar artery. No case of oculomotor nerve compression by the posterior communica...
Source: Neuroradiology - July 6, 2020 Category: Radiology Source Type: research

Dual-energy CT for differentiating acute intracranial hemorrhage from contrast staining or calcification: a meta-analysis
This study aimed to comprehensively evaluate the diagnostic performance of dual-energy CT (DECT) for differentiating acute intracranial hemorrhage (ICH) from contrast staining or small calcifications via a systematic review and meta-analysis.MethodsThe PubMed –MEDLINE, EMBASE, and Cochrane Library databases were searched up to November 10, 2019. Original studies (prospective or retrospective cohort studies) with the primary aim of detecting ICH using DECT were selected. The diagnostic performance of DECT was assessed using bivariate and hierarchical su mmary receiver operating characteristic models. Quality assessmen...
Source: Neuroradiology - July 4, 2020 Category: Radiology Source Type: research

Differentiation of salivary gland tumors through tumor heterogeneity: a comparison between pleomorphic adenoma and Warthin tumor using CT texture analysis
AbstractPurposeWe compared the diagnostic performance of CT texture analysis in single-phase CT scan with that of conventional enhancement pattern analysis in a two-phase CT scan for discrimination of salivary gland tumors, Warthin tumor (WT) from pleomorphic adenoma (PA).MethodsOne hundred seventy-eight patients with PA and 84 patients with WT were selected and CT texture analysis was separately performed on early (40s) and delayed (180s) phases, after injection of the contrast agent, using commercially available software. The attenuation changes and enhancement patterns were visually and quantitatively assessed with Houn...
Source: Neuroradiology - July 3, 2020 Category: Radiology Source Type: research

Correction to: Differential diagnosis of sinonasal extranodal NK/T cell lymphoma and diffuse large B cell lymphoma on MRI
The above article was published online with incorrect Fig.  1. The correct Fig. 1 is presented below. (Source: Neuroradiology)
Source: Neuroradiology - July 2, 2020 Category: Radiology Source Type: research

Association between draining vein diameters and intracranial arteriovenous malformation hemorrhage: a multicentric retrospective study
AbstractPurposeIntracranial arteriovenous malformations (AVMs) cause hemorrhage, and the role of draining vein diameters in rupture risk is controversial. The aims of the present study were to investigate the variables related with intracranial AVM rupture and to examine the association of draining vein diameters and AVM hemorrhage.MethodsTwo hundred three patients were included in this study, of which 117 (57%) had unruptured AVMs, and 86 (43%) had ruptured AVMs.ResultsIn an adjusted (multivariate) analysis, the variables significantly associated with AVM hemorrhagic presentation were age (OR per year increase 0.97, 95%CI...
Source: Neuroradiology - June 30, 2020 Category: Radiology Source Type: research

Use of intracranial stent as rescue therapy after mechanical thrombectomy failure —9-year experience in a comprehensive stroke centre
AbstractPurposeThere is no established rescue treatment in patients with mechanical thrombectomy (MT) failure. Our aim is to analyse whether the use of an intracranial stent improves prognosis in these patients.MethodsRetrospective analysis of a prospective cohort of patients with ischemic stroke due to middle cerebral artery occlusion (MCA) or distal intracranial carotid artery (ICA) occlusion, from September 2009 to April 2019 in our comprehensive stroke care centre. Patients with MT failure were identified and dichotomized into two groups according to whether or not an intracranial stent was implanted. We analysed clini...
Source: Neuroradiology - June 30, 2020 Category: Radiology Source Type: research

The development and understanding of intracranial aneurysm based on rabbit model
AbstractIn modern society, intracranial aneurysms have seriously affected people ’s life. To better study and treat intracranial aneurysm, animal models are ideal candidates to perform biological research and preclinical endovascular device testing. Rabbit aneurysm model is one of the most commonly used animal models, and the rabbit aneurysms share similarities in histology, m orphology, and hemodynamic aspects with human intracranial aneurysms, which is an ideal model for intracranial aneurysm pre-clinical and basic research. In this review, we will summarize the main methods of establishing rabbit aneurysms model a...
Source: Neuroradiology - June 27, 2020 Category: Radiology Source Type: research

Discrimination of intracranial aneurysm rupture status: patient-specific inflow boundary may not be a must-have condition in hemodynamic simulations
ConclusionPatient-specific and generalized inflow boundary conditions of aneurysmal hemodynamics resulted in significant differences. However, the significant parameters associated with rupture status were the same in both conditions, indicating that patient-specific inflow boundary conditions may not be necessary for predicting rupture risk. (Source: Neuroradiology)
Source: Neuroradiology - June 25, 2020 Category: Radiology Source Type: research

Multi-parametric qualitative and quantitative MRI assessment as predictor of histological grading in previously treated meningiomas
AbstractPurposeMeningiomas are mainly benign tumors, though a considerable proportion shows aggressive behaviors histologically consistent with atypia/anaplasia. Histopathological grading is usually assessed through invasive procedures, which is not always feasible due to the inaccessibility of the lesion or to treatment contraindications. Therefore, we propose a multi-parametric MRI assessment as a predictor of meningioma histopathological grading.MethodsSeventy-three patients with 74 histologically proven and previously treated meningiomas were retrospectively enrolled (42 WHO I, 24 WHO II, 8 WHO III) and studied with MR...
Source: Neuroradiology - June 24, 2020 Category: Radiology Source Type: research

Virtual meetings: a temporary choice or an effective opportunity for the future?
(Source: Neuroradiology)
Source: Neuroradiology - June 23, 2020 Category: Radiology Source Type: research

European Society of Neuroradiology (ESNR)
(Source: Neuroradiology)
Source: Neuroradiology - June 23, 2020 Category: Radiology Source Type: research

Combined signal averaging and compressed sensing: impact on quality of contrast-enhanced fat-suppressed 3D turbo field-echo imaging for pharyngolaryngeal squamous cell carcinoma
AbstractPurposeTo determine whether combined signal averaging and compressed sensing (CS averaging) improves the image quality of contrast-enhanced fat-suppressed T1-weighted three-dimensional turbo field-echo (FS T1W 3D-TFE) for evaluation of pharyngolaryngeal squamous cell carcinoma (PLSCC).MethodsThis retrospective study included 27 patients with PLSCC. In all patients, contrast-enhanced FS T1W 3D-TFE imaging with CS averaging (number of excitations, 7) and that without CS averaging (number of excitations, 1) were obtained during the same acquisition time. Overall image quality, mucosal enhancement, vessel clarity, moti...
Source: Neuroradiology - June 23, 2020 Category: Radiology Source Type: research

Treatment with flow diverter stent during pregnancy
We present a case of 21  mm unruptured carotid-ophthalmic aneurysm diagnosed during pregnancy and treated with flow diversion. Foetal radiation dose was estimated between 1 and 5 mGy, well below recommended limits. Double antiplatelet therapy with prasugrel and aspirin was administered between week 17 and week 37, follow ed by uneventful vaginal delivery at 39 weeks. The new-born infant did not present any clinical abnormalities. Post-natal angiography showed complete aneurysm occlusion. To our knowledge, this is the first report of flow diverter stent placement during ongoing pregnancy. Although a good outc...
Source: Neuroradiology - June 22, 2020 Category: Radiology Source Type: research

Hypointense head and neck lesions on T2-weighted images: correlation with histopathologic findings
ConclusionKnowledge regarding hypointense head and neck lesions on T2-weighted images allows radiologists to make accurate differential diagnoses.Key points•Hypointense head and neck lesions on T2-weighted images include calcified or osseous lesions, granulomatous lesions, fibrous lesions, mucous- or protein-containing lesions, hemosiderin-containing lesions, melanin-containing lesions, thyroglobulin-containing lesions, rapid blood flow, and air-filled spaces.•Radiologists should recognize the hypointense head and neck lesions on T2-weighted images for the final correct diagnosis, resulting in appropriate patient...
Source: Neuroradiology - June 20, 2020 Category: Radiology Source Type: research

Differential diagnosis of sinonasal extranodal NK/T cell lymphoma and diffuse large B cell lymphoma on MRI
AbstractPurposeTo evaluate whether imaging features on conventional magnetic resonance imaging (MRI) can differentiate sinonasal extranodal natural killer/T cell lymphomas (ENKTL) from diffuse large B cell lymphoma (DLBCL).MethodsConsecutively, pathology-proven 59 patients with ENKTL and 27 patients with DLBCL in the sinonasal region were included in this study. Imaging features included tumor side, location, margin, pre-contrast T1 and T2 signal intensity and homogeneity, post-contrast enhancement degree and homogeneity, septal enhancement pattern, internal necrosis, mass effect, and adjacent involvements. These imaging f...
Source: Neuroradiology - June 19, 2020 Category: Radiology Source Type: research

Recent acute ischemic stroke trials: reason for hope and excitement
(Source: Neuroradiology)
Source: Neuroradiology - June 19, 2020 Category: Radiology Source Type: research

Neuromelanin imaging analyses of the substantia nigra in patients with Machado-Joseph disease
ConclusionNeuromelanin in the SN may decrease at the early stage of the disease and continue to decrease over time with the disease duration in MJD/SCA3 patients. The NRC may be a useful biological index for monitoring MJD/SCA3. (Source: Neuroradiology)
Source: Neuroradiology - June 18, 2020 Category: Radiology Source Type: research

Potential of iterative reconstruction for maxillofacial cone beam CT imaging: technical note
AbstractIterative reconstruction has been proven to be an effective tool for low-dose computed tomography imaging. However, this technology is currently not available in commercial diagnostic maxillofacial cone beam CT. For this technical note, an iterative reconstruction technique was applied to cone beam CT raw data of two maxillofacial clinical cases to explore its potential for dose reduction and metal artifact reduction. Low-dose imaging was emulated by using only fractions of the clinical projection dataset. The reconstruction algorithms tested were filtered backprojection (FBP) as a reference method, and a total var...
Source: Neuroradiology - June 18, 2020 Category: Radiology Source Type: research

Automated MRI-based volumetry of basal ganglia and thalamus at the chronic phase of cortical stroke
AbstractPurposeWe aimed at assessing the potential of automated MR morphometry to assess individual basal ganglia and thalamus volumetric changes at the chronic phase after cortical stroke.MethodsNinety-six patients (mean age: 65  ± 18 years, male 55) with cortical stroke at the chronic phase were retrospectively included. Patients were scanned at 1.5 T or 3 T using a T1-MPRAGE sequence. Resulting 3D images were processed with the MorphoBox prototype software to automatically segment basal ganglia and thalamus struct ures, and to obtainZ scores considering the confounding effects of age ...
Source: Neuroradiology - June 17, 2020 Category: Radiology Source Type: research

Trainee education during COVID-19
(Source: Neuroradiology)
Source: Neuroradiology - June 17, 2020 Category: Radiology Source Type: research

More than five stentriever passes: real benefit or futile recanalization?
AbstractBackground and aimsClot extraction is associated with favorable outcome in patients with large vessel occlusions (LVO) undergoing endovascular thrombectomy (EVT). However, whether revascularization becomes futile or harmful with an increasing number of passes remains unknown.MethodsWe performed a retrospective analysis of 271 consecutive patients with LVO who underwent stentriever-based EVT as the primary recanalization strategy. Primary outcomes including favorable recanalization, survival, and favorable functional outcomes were compared according to a dichotomized number of stentriever passes utilized with a cuto...
Source: Neuroradiology - June 16, 2020 Category: Radiology Source Type: research

Intrathecal use of gadobutrol for gadolinium-enhanced MR cisternography in the evaluation of patients with otorhinorrhea
ConclusionIGE-MRC is a minimally invasive and highly sensitive imaging technique. The current results during our follow-up demonstrate the relative safety and feasibility of IGE-MRC by using gadobutrol to evaluate CSF leakage. (Source: Neuroradiology)
Source: Neuroradiology - June 13, 2020 Category: Radiology Source Type: research

Multiparametric flow analysis using four-dimensional flow magnetic resonance imaging can detect cerebral hemodynamic impairment in patients with internal carotid artery stenosis
This study assessed whether multiparametric flow analysis using time-resolved 3D phase-contrast (4D flow) MRI can detect cerebral hemodynamic impairment in patients with ICS.MethodsThis retrospective study analyzed 26 consecutive patients with unilateral ICS (21 men; mean age, 71  years) who underwent 4D flow MRI and acetazolamide-stress brain perfusion SPECT. Collateral flow via the Willis ring was visually evaluated. Temporal mean flow volume rate (Net), pulsatile flow volume (ΔV), and pulsatility index (PI) at the middle cerebral artery were measured. Cerebral vascular reserve (CVR) was calculated from the SP...
Source: Neuroradiology - June 9, 2020 Category: Radiology Source Type: research

Implementation of model explainability for a basic brain tumor detection using convolutional neural networks on MRI slices
ConclusionModel explainability should be considered in early stages of training a neural network for medical purposes as it may save time in the long run and will ultimately help physicians integrate the network ’s predictions into a clinical decision. (Source: Neuroradiology)
Source: Neuroradiology - June 4, 2020 Category: Radiology Source Type: research

Qualitative and quantitative analysis of diffusion-weighted brain MR imaging in comatose survivors after cardiac arrest
ConclusionA qualitative assessment of brain DWI using a scoring template provides useful data regarding patient outcome while quantitative data appeared less reliable. (Source: Neuroradiology)
Source: Neuroradiology - June 4, 2020 Category: Radiology Source Type: research

Correction to: Spatial coefficient of variation applied to arterial spin labeling MRI may contribute to predict surgical revascularization outcomes in pediatric moyamoya vasculopathy
This article was published online with incorrect alignment in Table 4. Column and rows are out of order. The correct Table 4 is presented here. The original article has been corrected. (Source: Neuroradiology)
Source: Neuroradiology - June 4, 2020 Category: Radiology Source Type: research

Endovascular recanalization for symptomatic subacute and chronically occluded internal carotid artery: feasibility, safety, a modified radiographic classification system, and clinical outcomes
ConclusionsEndovascular recanalization seems to achieve technical success and clinical improvement for symptomatic subacute and chronic ICAO. Additionally, our newly modified radiographic classification of ICAO may be valuable in assessing the technical feasibility and safety of procedures in symptomatic ICAO patients. (Source: Neuroradiology)
Source: Neuroradiology - June 3, 2020 Category: Radiology Source Type: research

Detection of the common origin of the radiculomedullary artery with the feeder of spinal dural arteriovenous fistula using slab maximum intensity projection image
ConclusionsThe flat panel detector and slab MIP images seem to show the common origin of the normal radiculomedullary arteries from the feeder more accurately. With detailed analyses, SDAVF can be safety treated. (Source: Neuroradiology)
Source: Neuroradiology - June 2, 2020 Category: Radiology Source Type: research

Structural neuroimaging findings in migraine patients with restless legs syndrome
ConclusionsComorbidity of RLS might be a confounding factor in structural neuroimaging studies in migraine. Deficits in the visual network seem to be related to accompanying RLS; deficits in the auditory network are particularly related to migraine. (Source: Neuroradiology)
Source: Neuroradiology - June 2, 2020 Category: Radiology Source Type: research

Higher b -values improve the correlation between diffusion MRI and the cortical microarchitecture
AbstractPurposeIn diffusion MRI (dMRI), it remains unclear to know how much increase ofb-value is conveying additional biological meaning. We tested the correlations between cortical microarchitecture and diffusion metrics computed from standard (1000  s/mm2), high (3000  s/mm2), to very high (5000  s/mm2)b-value dMRI.MethodsHealthy volunteers were scanned with a dMRI pulse sequence that was first optimized together with a T1-WI and T2-WI. Averaged cortical surface map of estimated myelin (T1-WI/T2-WI) was compared with surface maps of mean diffusivity (MD) computed from eachb-value (MD1000, MD3000, and MD50...
Source: Neuroradiology - June 1, 2020 Category: Radiology Source Type: research

European Society of Neuroradiology (ESNR)
(Source: Neuroradiology)
Source: Neuroradiology - May 22, 2020 Category: Radiology Source Type: research

Epilepsy surgery in children: what the radiologist needs to know
AbstractThis review updates the radiologist on current epilepsy surgery practice in children, with a specific focus on the role of imaging in pre-surgical work-up, current and novel surgical techniques, expected post-surgical imaging appearances and important post-operative complications. A comprehensive review of the current and emerging international practices in paediatric epilepsy surgical planning and post-operative imaging is provided with details on case-based radiological findings. A detailed discussion of the pathophysiology and imaging features of different epileptogenic lesions will not be discussed as this is n...
Source: Neuroradiology - May 20, 2020 Category: Radiology Source Type: research

Value of quantitative multiparametric MRI in differentiating pleomorphic adenomas from malignant epithelial tumors in lacrimal gland
AbstractPurposeTo evaluate the diagnostic performance of the quantitative parameters derived from diffusion-weighted imaging (DWI) and dynamic contrast-enhanced (DCE) MRI in differentiating lacrimal gland pleomorphic adenomas (LGPAs) from lacrimal gland malignant epithelial tumors (LGMETs).MethodsSeventy-seven cases with LG epithelial tumors confirmed by histopathology (47 LGPAs and 30 LGMETs) underwent DWI and DCE-MRI. The quantitative parameters including the apparent diffusion coefficient (ADC), the volume transfer constant (Ktrans), the efflux rate constant from the extravascular extracellular space (EES) to blood plas...
Source: Neuroradiology - May 19, 2020 Category: Radiology Source Type: research

Visualising the topography of the acoustic radiation in clinical diffusion tensor imaging scans
ConclusionThe AR can be visualised in clinical 1.5  T and 3 T DTI scans using single-fibre probabilistic analysis via DP, hence, the potential for DP to visualise the AR in medical and pre-surgical applications in pathologies such as vestibular schwannoma, multiple sclerosis, thalamic tumours and stroke as well as hearing loss. (Source: Neuroradiology)
Source: Neuroradiology - May 19, 2020 Category: Radiology Source Type: research

Differentiation of high-grade from low-grade diffuse gliomas using diffusion-weighted imaging: a comparative study of mono-, bi-, and stretched-exponential diffusion models
AbstractPurposeDiffusion-weighted imaging (DWI) plays an important role in the preoperative assessment of gliomas; however, the diagnostic performance of histogram-derived parameters from mono-, bi-, and stretched-exponential DWI models in the grading of gliomas has not been fully investigated. Therefore, we compared these models ’ ability to differentiate between high-grade and low-grade gliomas.MethodsThis retrospective study included 22 patients with diffuse gliomas (age, 23 –74 years; 12 males; 11 high-grade and 11 low-grade gliomas) who underwent preoperative 3 T-magnetic resonance imaging from O...
Source: Neuroradiology - May 18, 2020 Category: Radiology Source Type: research

Accelerated acquisition of carotid MR angiography using 3D gradient-echo imaging with two-point Dixon
AbstractThis pilot study tests the feasibility of rapid carotid MR angiography using the liver acquisition with volume acceleration-flex technique (LAVA MRA). Seven healthy volunteers and 21 consecutive patients suspected of carotid stenosis underwent LAVA and conventional time-of-flight (cTOF) MRAs. Artery-to-fat and artery-to-muscle signal intensity ratios were manually measured. LAVA MRA exhibited a significantly larger artery-to-fat signal intensity ratio compared with cTOF MRA in all slices (P
Source: Neuroradiology - May 18, 2020 Category: Radiology Source Type: research

Correction to: Venous pathologies in paediatric neuroradiology: from foetal to adolescent life
The original version of this article unfortunately contained a referencing omission. Figure 11 is reused from the original publication of Figure 10 of Gunny and Lin [1]. (Source: Neuroradiology)
Source: Neuroradiology - May 18, 2020 Category: Radiology Source Type: research

Diffusion-weighted MRI: impact of the size of the ROI in detecting metastases in subcentimeter lymph nodes in head and neck squamous cell carcinoma
AbstractPurposeOur aim is to determine the impact of the size of ROI in detecting subcentimeter metastatic lymph nodes in patients with head and neck squamous cell carcinoma (HNSCC). Secondary aim is to determine the impact of the histopathologic grade of the primary cancer on the ADC value of the metastatic nodes.MethodsThe prospective study included 51 patients with histopathologically proven HNSCC at the primary site. Primary site includes oral cavity, oropharynx, larynx, and hypopharynx. ADC values of the lymph nodes were measured on ADC maps by placing two ROIs in the lymph nodes (0.2 cm2 in the center of the node and...
Source: Neuroradiology - May 16, 2020 Category: Radiology Source Type: research

Clivus length distinguishes between asymptomatic healthy controls and symptomatic adult women with Chiari malformation type I
This study sought to identify differences in brain morphology between symptomatic CMI and healthy controls in adult females.MethodsTwo hundred and ten adult females with symptomatic CMI and 90 age- and body mass index-matched asymptomatic female controls were compared using seven brain morphometric measures visible on magnetic resonance images. The CMI and control groups were divided into four subgroups based on the tonsillar position (TP) relative to the foramen magnum: group 1 was made up of healthy controls with normal TP (TP  
Source: Neuroradiology - May 16, 2020 Category: Radiology Source Type: research

Spatial coefficient of variation applied to arterial spin labeling MRI may contribute to predict surgical revascularization outcomes in pediatric moyamoya vasculopathy
AbstractPurposeIn moyamoya vasculopathy, prolonged arterial transit time may increase the arterial spin labeling (ASL) signal heterogeneity, which can be quantitatively expressed by the spatial coefficient of variation of ASL-CBF (ASL-sCoV). The aim was to compare the accuracy of ASL-sCoV and ASL-CBF with dynamic susceptibility contrast (DSC)-CBF and time-to-peak (DSC-TTP) in the evaluation of perfusion changes and clinical outcome after encephalo-duro-arterio-myo-synangiosis (EDAMS) in pediatric moyamoya patients.MethodsA total of 37 children with moyamoya vasculopathy (mean age 6.31  years (1.12–15.42)) underw...
Source: Neuroradiology - May 15, 2020 Category: Radiology Source Type: research

Correlation between gray matter volume loss followed by aneurysmal subarachnoid hemorrhage and subarachnoid hemorrhage volume
This study aimed to assess regional structural damage according to initial clinical status including SAH volume.MethodsA total of 63 consecutive patients treated with coil embolization for intracranial aneurysms for more than 6  months were enrolled. Of these, 35 patients had SAH and 28 patients who were treated for unruptured aneurysms served as controls. Volumetric T1-weighted images were acquired with 1 mm isotropic voxel. The SAH volume was measured semi-automatically from the initial brain CT scan. Voxel-based group comparison was conducted to assess regional gray matter volume (GMV) changes. Voxel-based mul...
Source: Neuroradiology - May 15, 2020 Category: Radiology Source Type: research

Cerebral amyloid angiopathy with focal presentation —about 3 cases
We report here 3 clinical cases of patients with Alzheimer ’s disease and a focal form (i.e., not disseminated) of probable CAA, diagnosed with SWI sequences. Focal CAA may require closer attention and could offer keys in the understanding of both Alzheimer’s disease and CAA pathogenesis. (Source: Neuroradiology)
Source: Neuroradiology - May 15, 2020 Category: Radiology Source Type: research

Worm-like appearance of Listeria monocytogenes brain abscess: presentation of three cases
We present a series of three cases of LM brain abscesses and describe their characteristic radiological appearances which can be considered very typical. LM abscesses frequently present as markedly irregular formations, revealing characteristic worm-like tubular pattern of chaotic curvilinear arrangement. Knowledge of this imaging pattern can be very helpful in early recognition of LM abscesses whose initial differential diagnosis can often be misleading initially. (Source: Neuroradiology)
Source: Neuroradiology - May 14, 2020 Category: Radiology Source Type: research

Risk factors of white matter hyperintensities in South Asian patients with transient ischemic attack and minor stroke
AbstractPurposeAging and increased burden of cardiovascular risk factors are associated with severity of white matter hyperintensity (WMH). We assessed the burden and risk factor profile of WMHs in South Asian patients with transient ischemic attack (TIA) and minor stroke.MethodsPatients with acute ischemic stroke with the National Institute of Health stroke scale (NIHSS) score  ≤ 5 who underwent MRI were included. The severity of WMHs was assessed based on age-related white matter change (ARWMC) scale (0–30). A score of>  8 or more was considered moderate-severe involvement. Logistic regre...
Source: Neuroradiology - May 9, 2020 Category: Radiology Source Type: research

Automated ASPECT scoring in acute ischemic stroke: comparison of three software tools
AbstractPurposeVarious software applications offer support in the diagnosis of acute ischemic stroke (AIS), yet it remains unclear whether the performance of these tools is comparable to each other. Our study aimed to evaluate three fully automated software applications for Alberta Stroke Program Early CT (ASPECT) scoring (Syngo.via Frontier ASPECT Score Prototype V2, Brainomix e-ASPECTS ® and RAPID ASPECTS) in AIS patients.MethodsRetrospectively, 131 patients with large vessel occlusion (LVO) of the middle cerebral artery or the internal carotid artery, who underwent endovascular therapy (EVT), were included. Pre-inte...
Source: Neuroradiology - May 8, 2020 Category: Radiology Source Type: research

Percutaneous CT-guided lumbar trans-facet pedicle screw fixation in lumbar microinstability syndrome: feasibility of a novel approach
ConclusionTFF seems to be a powerful technique for lumbar spine stabilization in patients with chronic mechanical LBP related to lumbar MI. CT-guided technique is fast, precise, and safe and can be performed in simple analgo-sedation. (Source: Neuroradiology)
Source: Neuroradiology - May 5, 2020 Category: Radiology Source Type: research

The diagnostic role of diffusional kurtosis imaging in glioma grading and differentiation of gliomas from other intra-axial brain tumours: a systematic review with critical appraisal and meta-analysis
ConclusionDKI shows good diagnostic accuracy in the differentiation of high- and low-grade gliomas further supporting its potential role in clinical practice. Further exploration of DKI in differentiating IDH status and in characterising non-glioma CNS tumours is however needed. (Source: Neuroradiology)
Source: Neuroradiology - May 4, 2020 Category: Radiology Source Type: research