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AJNR. American Journal of Neuroradiology

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https://www.readbyqxmd.com/read/28818829/open-globe-injury-ultrasound-first
#1
LETTER
A Lecler, A Pinel, P Koskas
No abstract text is available yet for this article.
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28818828/reply
#2
LETTER
U K Bodanapally, O Saeedi
No abstract text is available yet for this article.
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28818827/endovascular-treatment-of-dural-arteriovenous-fistulas-of-the-transverse-and-sigmoid-sinuses-using-transarterial-balloon-assisted-embolization-combined-with-transvenous-balloon-protection-of-the-venous-sinus
#3
E Piechowiak, F Zibold, T Dobrocky, P J Mosimann, D Bervini, A Raabe, J Gralla, P Mordasini
BACKGROUND AND PURPOSE: Combined transarterial balloon-assisted endovascular embolization with double-lumen balloon microcatheters and concomitant transvenous balloon protection was described as a promising treatment technique for dural arteriovenous fistulae of the transverse and sigmoid sinus. The purpose of this study was to evaluate the technical efficacy and safety of this combined treatment technique. MATERIALS AND METHODS: Nine consecutive patients presenting with dural arteriovenous fistulas of the transverse and sigmoid sinuses underwent combined transarterial and transvenous balloon-assisted endovascular embolization...
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28818826/test-retest-and-interreader-reproducibility-of-semiautomated-atlas-based-analysis-of-diffusion-tensor-imaging-data-in-acute-cervical-spine-trauma-in-adult-patients
#4
D J Peterson, A M Rutman, D S Hippe, J G Jarvik, F H Chokshi, M R Reyes, C H Bombardier, M Mossa-Basha
BACKGROUND AND PURPOSE: DTI is a tool for microstructural spinal cord injury evaluation. This study evaluated the reproducibility of a semiautomated segmentation algorithm of spinal cord DTI. MATERIALS AND METHODS: Forty-two consecutive patients undergoing acute trauma cervical spine MR imaging underwent 2 axial DTI scans in addition to their clinical scan. The datasets were put through a semiautomated probabilistic segmentation algorithm that selected white matter, gray matter, and 24 individual white matter tracts...
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28818825/mr-imaging-features-of-the-cerebellum-in-adult-onset-neuronal-intranuclear-inclusion-disease-8-cases
#5
A Sugiyama, N Sato, Y Kimura, T Maekawa, M Enokizono, Y Saito, Y Takahashi, H Matsuda, S Kuwabara
Neuronal intranuclear inclusion disease is a neurodegenerative disorder pathologically characterized by eosinophilic hyaline intranuclear inclusions. A high-intensity signal along the corticomedullary junction on DWI has been described as a specific MR imaging finding of the cerebrum in neuronal intranuclear inclusion disease. However, MR imaging findings of the cerebellum in neuronal intranuclear inclusion disease have not been fully evaluated. Here, we review MR imaging findings of the cerebellum in a series of 8 patients with pathologically confirmed neuronal intranuclear inclusion disease...
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28818824/clinical-impact-of-flat-panel-volume-ct-angiography-in-evaluating-the-accurate-intraoperative-deployment-of-flow-diverter-stents
#6
F Clarençon, F Di Maria, J Gabrieli, E Shotar, V Degos, A Nouet, A Biondi, N-A Sourour
BACKGROUND AND PURPOSE: The deployment of flow-diverter stents may be difficult to analyse on regular DSA. The purpose of our study was to investigate the clinical impact of stent-dedicated flat panel volume CT angiography to evaluate intraoperatively the satisfactory deployment of flow-diverter stents. MATERIALS AND METHODS: From January 2009 to April 2015, 83 consecutive patients (mean age, 51 years; 62 women) were treated in our institution with flow-diverter stents...
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28818823/regarding-perfusion-mr-imaging-using-a-3d-pulsed-continuous-arterial-spin-labeling-method-for-acute-cerebral-infarction-classified-as-branch-atheromatous-disease-involving-the-lenticulostriate-artery-territory
#7
LETTER
https://www.readbyqxmd.com/read/28818822/reply
#8
LETTER
Y Shinohara, T Ogawa
No abstract text is available yet for this article.
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28798219/improved-detection-of-anterior-circulation-occlusions-the-delayed-vessel-sign-on-multiphase-ct-angiography
#9
D Byrne, G Sugrue, E Stanley, J P Walsh, S Murphy, E C Kavanagh, P J MacMahon
BACKGROUND AND PURPOSE: Multiphase CTA, a technique to dynamically assess the vasculature in acute ischemic stroke, was primarily developed to evaluate collateral filling. We have observed that it is also useful in identifying distal anterior circulation occlusions due to delayed anterior circulation opacification on multiphase CTA, an observation we term the "delayed vessel sign." We aimed to determine the usefulness of this sign by comparing multiphase CTA with single-phase CTA. MATERIALS AND METHODS: All 23 distal anterior circulation occlusions during a 2-year period were included...
August 10, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28798218/imaging-biomarkers-for-adult-medulloblastomas-genetic-entities-may-be-identified-by-their-mr-imaging-radiophenotype
#10
V C Keil, M Warmuth-Metz, C Reh, S J Enkirch, C Reinert, D Beier, D T W Jones, T Pietsch, H H Schild, E Hattingen, P Hau
BACKGROUND AND PURPOSE: The occurrence of medulloblastomas in adults is rare; nevertheless, these tumors can be subdivided into genetic and histologic entities each having distinct prognoses. This study aimed to identify MR imaging biomarkers to classify these entities and to uncover differences in MR imaging biomarkers identified in pediatric medulloblastomas. MATERIALS AND METHODS: Eligible preoperative MRIs from 28 patients (11 women; 22-53 years of age) of the Multicenter Pilot-study for the Therapy of Medulloblastoma of Adults (NOA-7) cohort were assessed by 3 experienced neuroradiologists...
August 10, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28798217/multicenter-experience-with-fred-jr-flow-re-direction-endoluminal-device-for-intracranial-aneurysms-in-small-arteries
#11
M A Möhlenbruch, O Kizilkilic, M Killer-Oberpfalzer, F Baltacioglu, C Islak, M Bendszus, S Cekirge, I Saatci, N Kocer
BACKGROUND AND PURPOSE: Flow diverters are emerging as an endovascular treatment alternative for proximally located intracranial aneurysms. However, treatment of aneurysms at and beyond the circle of Willis is not well-established. We assessed the clinical safety and efficacy of the Flow Re-Direction Endoluminal Device Jr (FRED Jr) dedicated to small-vessel diameters between 2.0 and 3.0 mm. MATERIALS AND METHODS: This was a multicenter observational clinical study of 42 patients with 47 aneurysms treated by a flow-direction technique with the FRED Jr...
August 10, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28798216/dual-energy-ct-in-enhancing-subdural-effusions-that-masquerade-as-subdural-hematomas-diagnosis-with-virtual-high-monochromatic-190-kev-images
#12
U K Bodanapally, D Dreizin, G Issa, K L Archer-Arroyo, K Sudini, T R Fleiter
BACKGROUND AND PURPOSE: Extravasation of iodinated contrast into subdural space following contrast-enhanced radiographic studies results in hyperdense subdural effusions, which can be mistaken as acute subdural hematomas on follow-up noncontrast head CTs. Our aim was to identify the factors associated with contrast-enhancing subdural effusion, characterize diffusion and washout kinetics of iodine in enhancing subdural effusion, and assess the utility of dual-energy CT in differentiating enhancing subdural effusion from subdural hematoma...
August 10, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28798215/spinal-and-paraspinal-plexiform-neurofibromas-in-patients-with-neurofibromatosis-type-1-a-novel-scoring-system-for-radiological-clinical-correlation
#13
M Mauda-Havakuk, B Shofty, S Ben-Shachar, L Ben-Sira, S Constantini, F Bokstein
BACKGROUND AND PURPOSE: Neurofibromatosis type 1 is a common tumor predisposition syndrome. The aim of this study was to characterize the radiologic presentation of patients with neurofibromatosis type 1 with widespread spinal disease and to correlate it to clinical presentation and outcome. MATERIALS AND METHODS: We conducted a historical cohort study of adult patients with neurofibromatosis type 1 with spinal involvement. Longitudinal clinical evaluation included pain and neurologic deficits...
August 10, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28775060/measurement-for-detection-of-incomplete-partition-type-ii-anomalies-on-mr-imaging
#14
K L Reinshagen, H D Curtin, A M Quesnel, A F Juliano
BACKGROUND AND PURPOSE: Incomplete partition type II of the cochlea, commonly coexisting with an enlarged vestibular aqueduct, can be a challenging diagnosis on MR imaging due to the presence of a dysplastic spiral lamina-basilar membrane neural complex, which can resemble the normal interscalar septum. The purpose of this study was to determine a reproducible, quantitative cochlear measurement to assess incomplete partition type II anomalies in patients with enlarged vestibular aqueducts using normal-hearing ears as a control population...
August 3, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28775059/basal-ganglia-t1-hyperintensity-in-hereditary-hemorrhagic-telangiectasia
#15
A Parvinian, V N Iyer, B S Pannu, D R Apala, C P Wood, W Brinjikji
BACKGROUND AND PURPOSE: The implications of basal ganglia T1 hyperintensity remain unclear in patients with hereditary hemorrhagic telangiectasia. This study was performed to assess the prevalence of this imaging finding in a large cohort of patients with hereditary hemorrhagic telangiectasia and to identify any association between this phenomenon and other disease manifestations. MATERIALS AND METHODS: In this retrospective study, we identified all patients at our institution diagnosed with definite hereditary hemorrhagic telangiectasia from 2001 to 2017...
August 3, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28775058/analysis-of-white-matter-damage-in-patients-with-multiple-sclerosis-via-a-novel-in-vivo-mr-method-for-measuring-myelin-axons-and-g-ratio
#16
A Hagiwara, M Hori, K Yokoyama, M Nakazawa, R Ueda, M Horita, C Andica, O Abe, S Aoki
BACKGROUND AND PURPOSE: Myelin and axon volume fractions can now be estimated via MR imaging in vivo, as can the g-ratio, which equals the ratio of the inner to the outer diameter of a nerve fiber. The purpose of this study was to evaluate WM damage in patients with MS via this novel MR imaging technique. MATERIALS AND METHODS: Twenty patients with relapsing-remitting MS with a combined total of 149 chronic plaques were analyzed. Myelin volume fraction was calculated based on simultaneous tissue relaxometry...
August 3, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28775057/localizing-the-l5-vertebra-using-nerve-morphology-on-mri-an-accurate-and-reliable-technique
#17
M E Peckham, T A Hutchins, S E Stilwill, M K Mills, B J Morrissey, E A R Joiner, R K Sanders, G J Stoddard, L M Shah
BACKGROUND AND PURPOSE: Multiple methods have been used to determine the lumbar vertebral level on MR imaging, particularly when full spine imaging is unavailable. Because postmortem studies show 95% accuracy of numbering the lumbar vertebral bodies by counting the lumbar nerve roots, attention to lumbar nerve morphology on axial MR imaging can provide numbering clues. We sought to determine whether the L5 vertebra could be accurately localized by using nerve morphology on MR imaging...
August 3, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28775056/prospective-comparison-of-changes-in-lumbar-spine-mri-findings-over-time-between-individuals-with-acute-low-back-pain-and-controls-an-exploratory-study
#18
J Panagopoulos, J S Magnussen, J Hush, C G Maher, M Crites-Battie, J G Jarvik, T S Jensen, M J Hancock
BACKGROUND AND PURPOSE: The clinical importance of lumbar MR imaging findings is unclear. This study was an exploratory investigation of whether lumbar spine MR imaging findings change more commonly during a 12-week period in individuals with acute low back pain compared with pain-free controls. MATERIALS AND METHODS: Twenty individuals with recent-onset low back pain and 10 pain-free controls were recruited into an exploratory prospective cohort study. All participants had a lumbar spine MR imaging at baseline and repeat MR imaging scans at 1, 2, 6, and 12 weeks...
August 3, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28775055/in-vivo-imaging-of-venous-side-cerebral-small-vessel-disease-in-older-adults-an-mri-method-at-7t
#19
C E Shaaban, H J Aizenstein, D R Jorgensen, R L MacCloud, N A Meckes, K I Erickson, N W Glynn, J Mettenburg, J Guralnik, A B Newman, T S Ibrahim, P J Laurienti, A N Vallejo, C Rosano
BACKGROUND AND PURPOSE: Traditional neuroimaging markers of small-vessel disease focus on late-stage changes. We aimed to adapt a method of venular assessment at 7T for use in older adults. We hypothesized that poorer venular morphologic characteristics would be related to other small-vessel disease neuroimaging markers and a higher prevalence of small-vessel disease-Alzheimer disease risk factors. MATERIALS AND METHODS: Venules were identified in periventricular ROIs on SWI and defined as tortuous or straight...
August 3, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28751519/value-of-thrombus-ct-characteristics-in-patients-with-acute-ischemic-stroke
#20
J Borst, O A Berkhemer, E M M Santos, A J Yoo, M den Blanken, Y B W E M Roos, E van Bavel, W H van Zwam, R J van Oostenbrugge, H F Lingsma, A van der Lugt, D W J Dippel, H A Marquering, C B L M Majoie
BACKGROUND AND PURPOSE: Thrombus CT characteristics might be useful for patient selection for intra-arterial treatment. Our objective was to study the association of thrombus CT characteristics with outcome and treatment effect in patients with acute ischemic stroke. MATERIALS AND METHODS: We included 199 patients for whom thin-section NCCT and CTA within 30 minutes from each other were available in the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute ischemic stroke in the Netherlands (MR CLEAN) study...
July 27, 2017: AJNR. American Journal of Neuroradiology
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