American Journal of Neuroradiology: 39 (5)

May 01, 2018; Volume 39,Issue 5

Perspectives

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Perspectives
Steven M. Schonfeld

American Journal of Neuroradiology May 2018, 39 (5) 797; DOI: https://doi.org/10.3174/ajnr.P0051

Review Article

Spine

Open Access
Vertebroplasty and Kyphoplasty for Osteoporotic Vertebral Fractures: What Are the Latest Data?
R.V. Chandra, J. Maingard, H. Asadi, L.-A. Slater, T.-L. Mazwi, S. Marcia, J. Barr and J.A. Hirsch

American Journal of Neuroradiology May 2018, 39 (5) 798-806; DOI: https://doi.org/10.3174/ajnr.A5458

Level 1 EBM Expedited Publication

EDITOR'S CHOICEInterventional

Open Access
Parent Artery Reconstruction for Large or Giant Cerebral Aneurysms Using the Tubridge Flow Diverter: A Multicenter, Randomized, Controlled Clinical Trial (PARAT)
J.-m. Liu, Y. Zhou, Y. Li, T. Li, B. Leng, P. Zhang, G. Liang, Q. Huang, P.-f. Yang, H. Shi, J. Zhang, J. Wan, W. He, C. Liang, G. Zhu, Y. Xu, B. Hong, X. Yang, W. Bai, Y. Tian, H. Zhang, Z. Li, Q. Li, R. Zhao, Y. Fang and K. Zhao for the PARAT investigators

American Journal of Neuroradiology May 2018, 39 (5) 807-816; DOI: https://doi.org/10.3174/ajnr.A5619

This was a prospective, multicenter, randomized trial conducted at 12 hospitals throughout China. Enrolled adults with unruptured large/giant intracranial aneurysms were randomly assigned (1:1) to receive either Enterprise stent-assisted coiling or Tubridge flow diverter implantation. The primary end point was complete occlusion at 6-month follow-up, while secondary end points included technical success, mortality, target vessel–related stroke, aneurysm bleeding, in-stent stenosis, parent artery occlusion, and the frequency of all adverse events. The results of 6-month follow-up imaging included complete occlusion rates of 75.34% versus 24.53% for the Tubridge and stent-assisted coiling groups, respectively. This trial showed a higher rate of large and giant aneurysm obliteration with the Tubridgeflow diverter over Enterprise stent-assisted coiling. However, this higher obliteration rate came at the cost of a nonsignificantly higher rate of complications.

General Contents

EDITOR'S CHOICEAdult Brain

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Localized Marked Elongation of the Distal Internal Carotid Artery with or without PHACE Syndrome: Segmental Dolichoectasia of the Distal Internal Carotid Artery
Z.Y. Jia, L.B. Zhao and D.H. Lee

American Journal of Neuroradiology May 2018, 39 (5) 817-823; DOI: https://doi.org/10.3174/ajnr.A5573

Intracranial dolichoectasia of the distal ICA was identified in 20 patients from 2005–2016 through a review of diagnostic cerebral angiography results. Images were reviewed to determine the vascular morphologic dispositions around the distal ICA, including dysplasia, mural calcification, vessel wall enhancement, lumen narrowing, and aneurysm formation. In this cohort, which had a strong female predominance (male/female ratio2:18), intracranial dolichoectasia had a more ipsilateral vascular morphologic disposition. Mural calcification was detected more frequently in elderly patients, whereas vessel wall enhancement was detected more frequently in younger patients. Follow-up images showed a slow progression of the lesions. The segmental nature of the striking elongation and tortuosity of the distal ICA suggest a type of congenital lesion representing either a sporadic phenomenon or an arterial change associated with PHACE syndrome.
FELLOWS' JOURNAL CLUBAdult Brain

Open Access
Brain MRI Characteristics of Patients with Anti-N-Methyl-D-Aspartate Receptor Encephalitis and Their Associations with 2-Year Clinical Outcome
T. Zhang, Y. Duan, J. Ye, W. Xu, N. Shu, C. Wang, K. Li and Y. Liu

American Journal of Neuroradiology May 2018, 39 (5) 824-829; DOI: https://doi.org/10.3174/ajnr.A5593

The authors enrolled 53 patients with anti-N-methyl-D-aspartate receptor encephalitis and performed 2-year follow-up. Brain MRIs were acquired for all patients at the onset phase. The brain MR imaging manifestations were classified into 4 types—type 1: normal MR imaging findings; type 2: only hippocampal lesions; type 3: lesions not involving the hippocampus; and type 4: lesions inboth the hippocampus and other brain areas. Twenty-eight (28/53, 53%) patients had normal MR imaging findings (type 1), and the others (25/53, 47%) had abnormal MRI findings—type 2: 7 patients (13%); type 3: 7 patients (13%); and type 4: 11 patients (21%). The presence of hippocampal lesions and relapse was associated with poor outcome.
Adult Brain

Open Access
Fast and Robust Unsupervised Identification of MS Lesion Change Using the Statistical Detection of Changes Algorithm
T.D. Nguyen, S. Zhang, A. Gupta, Y. Zhao, S.A. Gauthier and Y. Wang

American Journal of Neuroradiology May 2018, 39 (5) 830-833; DOI: https://doi.org/10.3174/ajnr.A5594
Adult Brain

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Signal Change of Acute Cortical and Juxtacortical Microinfarction on Follow-Up MRI
M. Miyata, S. Kakeda, T. Yoneda, S. Ide, K. Watanabe, J. Moriya and Y. Korogi

American Journal of Neuroradiology May 2018, 39 (5) 834-840; DOI: https://doi.org/10.3174/ajnr.A5606
EDITOR'S CHOICEInterventional

Open Access
European Multicenter Study for the Evaluation of a Dual-Layer Flow-Diverting Stent for Treatment of Wide-Neck Intracranial Aneurysms: The European Flow-Redirection Intraluminal Device Study
M. Killer-Oberpfalzer, N. Kocer, C.J. Griessenauer, H. Janssen, T. Engelhorn, M. Holtmannspötter, J.H. Buhk, T. Finkenzeller, G. Fesl, J. Trenkler, W. Reith, A. Berlis, K. Hausegger, M. Augustin, C. Islak, B. Minnich and M. Möhlenbruch

American Journal of Neuroradiology May 2018, 39 (5) 841-847; DOI: https://doi.org/10.3174/ajnr.A5592

Consecutive patients with intracranial aneurysms treated with the FRED between February 2012 and March 2015 were retrospectively reviewed. Complications and adverse events, transient and permanent morbidity, mortality, and occlusion rates were evaluated. A total of 579 aneurysms in 531 patients were treated with the FRED. Seven percent of patients were treated in the acute phase of aneurysm rupture. The median aneurysm size was 7.6 mm and the median neck size 4.5 mm. There was progressive occlusion witnessed with time, with complete occlusion in 18 (20%) aneurysms followed for up to 90 days, 141 (82.5%) for 180 days, 116 (91.3%) for 1 year, and 122 (95.3%) aneurysms followed for more than 1 year. This retrospective study in real-world patients demonstrated the safety and efficacy of the FRED for the treatment of intracranial aneurysms.
Interventional

Open Access
An Update on the Adjunctive Neurovascular Support of Wide-Neck Aneurysm Embolization and Reconstruction Trial: 1-Year Safety and Angiographic Results
A.M. Spiotta, M.I. Chaudry, R.D. Turner, A.S. Turk, C.P. Derdeyn, J. Mocco and S. Tateshima

American Journal of Neuroradiology May 2018, 39 (5) 848-851; DOI: https://doi.org/10.3174/ajnr.A5599
Interventional

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Endovascular Treatment of Very Large and Giant Intracranial Aneurysms: Comparison between Reconstructive and Deconstructive Techniques—A Meta-Analysis
F. Cagnazzo, D. Mantilla, A. Rouchaud, W. Brinjikji, P.-H. Lefevre, C. Dargazanli, G. Gascou, C. Riquelme, P. Perrini, D. di Carlo, A. Bonafe and V. Costalat

American Journal of Neuroradiology May 2018, 39 (5) 852-858; DOI: https://doi.org/10.3174/ajnr.A5591
Interventional

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The New Low-Profile WEB 17 System for Treatment of Intracranial Aneurysms: First Clinical Experiences
S.B.T. van Rooij, J.P. Peluso, M. Sluzewski, H.G. Kortman and W.J. van Rooij

American Journal of Neuroradiology May 2018, 39 (5) 859-863; DOI: https://doi.org/10.3174/ajnr.A5608
Interventional

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Long-Term Outcomes of Patients with Stent Tips Embedded into Internal Carotid Artery Branches during Aneurysm Coiling
S.P. Ban, O.-K. Kwon, S.U. Lee, J.S. Bang, C.W. Oh, H.J. Jeong, M.J. Cho, E.-A. Jeong and T. Kim

American Journal of Neuroradiology May 2018, 39 (5) 864-868; DOI: https://doi.org/10.3174/ajnr.A5583
Interventional

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Factors Influencing Confidence in Diagnostic Ratings and Retreatment Recommendations in Coiled Aneurysms
M. Ernst, L. Kriston, M. Groth, A.M. Frölich, J. Fiehler and J.-H. Buhk

American Journal of Neuroradiology May 2018, 39 (5) 869-874; DOI: https://doi.org/10.3174/ajnr.A5581
Interventional

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Management of Small Unruptured Intracranial Aneurysms: A Survey of Neuroradiologists
A. Malhotra, X. Wu, B. Geng, D. Hersey, D. Gandhi and P. Sanelli

American Journal of Neuroradiology May 2018, 39 (5) 875-880; DOI: https://doi.org/10.3174/ajnr.A5631
Interventional

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Diagnosing Early Ischemic Changes with the Latest-Generation Flat Detector CT: A Comparative Study with Multidetector CT
I.L. Maier, J.R. Leyhe, I. Tsogkas, D. Behme, K. Schregel, M. Knauth, M. Schnieder, J. Liman and M.-N. Psychogios

American Journal of Neuroradiology May 2018, 39 (5) 881-886; DOI: https://doi.org/10.3174/ajnr.A5595
Interventional

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Endovascular Management of Acute Stroke in the Elderly: A Systematic Review and Meta-Analysis
C.A. Hilditch, P. Nicholson, M.H. Murad, A. Rabinstein, J. Schaafsma, A. Pikula, T. Krings, V.M. Pereira, R. Agid and W. Brinjikji

American Journal of Neuroradiology May 2018, 39 (5) 887-891; DOI: https://doi.org/10.3174/ajnr.A5598
FELLOWS' JOURNAL CLUBInterventional

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Accuracy of CT Angiography for Differentiating Pseudo-Occlusion from True Occlusion or High-Grade Stenosis of the Extracranial ICA in Acute Ischemic Stroke: A Retrospective MR CLEAN Substudy
M. Kappelhof, H.A. Marquering, O.A. Berkhemer, J. Borst, A. van der Lugt, W.H. van Zwam, J.A. Vos, G. Lycklama à Nijeholt, C.B.L.M. Majoie and B.J. Emmer on behalf of the MR CLEAN Investigators

American Journal of Neuroradiology May 2018, 39 (5) 892-898; DOI: https://doi.org/10.3174/ajnr.A5601

All patients from the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN) with an apparent ICA occlusion on CTA and available DSA images were included. Two independent observers classified CTA images as atherosclerotic cause (occlusion/high-grade stenosis), dissection, or suspected pseudo-occlusion. Pseudo-occlusion was suspected if CTA showed a gradual contrast decline located above the level of the carotid bulb, especially in the presence of an occludedintracranial ICA bifurcation (T-occlusion). In 108 of 476 patients (23%), CTA showed an apparent extracranial carotid occlusion. DSA was available in 46 of these cases, showing an atherosclerotic cause in 13 (28%), dissection in 16 (35%), and pseudo-occlusion in 17 (37%). The sensitivity for detecting pseudo-occlusion on CTA was 82% for both observers. The authors conclude that on CTA, extracranial ICA pseudo-occlusions can be differentiated from true carotid occlusions.
Interventional

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Randomized Assessment of the Safety and Efficacy of Intra-Arterial Infusion of Autologous Stem Cells in Subacute Ischemic Stroke
V. Bhatia, V. Gupta, D. Khurana, R.R. Sharma and N. Khandelwal

American Journal of Neuroradiology May 2018, 39 (5) 899-904; DOI: https://doi.org/10.3174/ajnr.A5586
Interventional

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Under Pressure: Comparison of Aspiration Techniques for Endovascular Mechanical Thrombectomy
O. Nikoubashman, D. Wischer, H.M. Hennemann, M. Büsen, C. Brockmann and M. Wiesmann

American Journal of Neuroradiology May 2018, 39 (5) 905-909; DOI: https://doi.org/10.3174/ajnr.A5605
Interventional

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Aneurysmal Parent Artery–Specific Inflow Conditions for Complete and Incomplete Circle of Willis Configurations
B.M.W. Cornelissen, J.J. Schneiders, M.E. Sprengers, R. van den Berg, P. van Ooij, A.J. Nederveen, E. van Bavel, W.P. Vandertop, C.H. Slump, H.A. Marquering and C.B.L.M. Majoie

American Journal of Neuroradiology May 2018, 39 (5) 910-915; DOI: https://doi.org/10.3174/ajnr.A5602
Interventional

Open Access
3D Deep Learning Angiography (3D-DLA) from C-arm Conebeam CT
J.C. Montoya, Y. Li, C. Strother and G.-H. Chen

American Journal of Neuroradiology May 2018, 39 (5) 916-922; DOI: https://doi.org/10.3174/ajnr.A5597
FELLOWS' JOURNAL CLUBHead & Neck

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Evaluation of the Normal Cochlear Second Interscalar Ridge Angle and Depth on 3D T2-Weighted Images: A Tool for the Diagnosis of Scala Communis and Incomplete Partition Type II
T.N. Booth, C. Wick, R. Clarke, J.W. Kutz, M. Medina, D. Gorsage, Y. Xi and B. Isaacson

American Journal of Neuroradiology May 2018, 39 (5) 923-927; DOI: https://doi.org/10.3174/ajnr.A5585

The second interscalar ridge notch angle and depth were measured on MR imaging in normal ears by a single experienced neuroradiologist. The images of normal ears were then randomly mixed with images of ears with incomplete partition II malformation for 2 novice evaluators to measure both the second interscalar ridge notch angle and depth in a blinded manner. For the mixed group, interobserver agreement was calculated, normal and abnormal ear measurements were compared, and receiver operating characteristic curves were generated. The 94 normal ears had a mean second interscalar ridge angle of 80.86° and depth of 0.54mm with the 98th percentile for an angle of 101° and a depth of 0.3 mm. In the mixed group, agreement between the 2 readers was excellent, with significant differences found between normal and incomplete partition type II ears for angle and depth on average. The authors conclude that a measured angle of >114° and a depth of the second interscalar ridge notch of ≤0.31 mm suggest the diagnosis of incomplete partition type II malformation and scalacommunis.
Head & Neck

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Anatomic Malformations of the Middle and Inner Ear in 22q11.2 Deletion Syndrome: Case Series and Literature Review
E. Verheij, L. Elden, T.B. Crowley, F.A. Pameijer, E.H. Zackai, D.M. McDonald-McGinn and H.G.X.M. Thomeer

American Journal of Neuroradiology May 2018, 39 (5) 928-934; DOI: https://doi.org/10.3174/ajnr.A5588
Pediatrics

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Brain Diffusion Abnormalities in Children with Tension-Type and Migraine-Type Headaches
J.D. Santoro, N.D. Forkert, Q.-Z. Yang, S. Pavitt, S.J. MacEachern, M.E. Moseley and K.W. Yeom

American Journal of Neuroradiology May 2018, 39 (5) 935-941; DOI: https://doi.org/10.3174/ajnr.A5582
Pediatrics

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Congenital Aqueductal Stenosis: Findings at Fetal MRI That Accurately Predict a Postnatal Diagnosis
K.J. Heaphy-Henault, C.V. Guimaraes, A.R. Mehollin-Ray, C.I. Cassady, W. Zhang, N.K. Desai and M.J. Paldino

American Journal of Neuroradiology May 2018, 39 (5) 942-948; DOI: https://doi.org/10.3174/ajnr.A5590
Pediatrics

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MRI Characteristics of Primary Tumors and Metastatic Lesions in Molecular Subgroups of Pediatric Medulloblastoma: A Single-Center Study
D. Mata-Mbemba, M. Zapotocky, S. Laughlin, M.D. Taylor, V. Ramaswamy and C. Raybaud

American Journal of Neuroradiology May 2018, 39 (5) 949-955; DOI: https://doi.org/10.3174/ajnr.A5578
Pediatrics

Open Access
Cerebellar Growth Impairment Characterizes School-Aged Children Born Preterm without Perinatal Brain Lesions
K. Pieterman, T.J. White, G.E. van den Bosch, W.J. Niessen, I.K.M. Reiss, D. Tibboel, F.E. Hoebeek and J. Dudink

American Journal of Neuroradiology May 2018, 39 (5) 956-962; DOI: https://doi.org/10.3174/ajnr.A5589
Pediatrics

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Prenatal Brain MR Imaging: Reference Linear Biometric Centiles between 20 and 24 Gestational Weeks
G. Conte, S. Milani, G. Palumbo, G. Talenti, S. Boito, M. Rustico, F. Triulzi, A. Righini, G. Izzo, C. Doneda, A. Zolin and C. Parazzini

American Journal of Neuroradiology May 2018, 39 (5) 963-967; DOI: https://doi.org/10.3174/ajnr.A5574
Spine

Open Access
Differentiating Atypical Hemangiomas and Metastatic Vertebral Lesions: The Role of T1-Weighted Dynamic Contrast-Enhanced MRI
K.A. Morales, J. Arevalo-Perez, K.K. Peck, A.I. Holodny, E. Lis and S. Karimi

American Journal of Neuroradiology May 2018, 39 (5) 968-973; DOI: https://doi.org/10.3174/ajnr.A5630
Spine

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The Importance of Flexion MRI in Hirayama Disease with Special Reference to Laminodural Space Measurements
D.K. Boruah, A. Prakash, B.B. Gogoi, R.R. Yadav, D.D. Dhingani and B. Sarma

American Journal of Neuroradiology May 2018, 39 (5) 974-980; DOI: https://doi.org/10.3174/ajnr.A5577
Spine

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Percutaneous CT-Guided Biopsies of the Cervical Spine: Technique, Histopathologic and Microbiologic Yield, and Safety at a Single Academic Institution
E.L. Wiesner, T.J. Hillen, J. Long and J.W. Jennings

American Journal of Neuroradiology May 2018, 39 (5) 981-985; DOI: https://doi.org/10.3174/ajnr.A5603
Spine

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Transforaminal Lumbar Puncture: An Alternative Technique in Patients with Challenging Access
D.R. Nascene, C. Ozutemiz, H. Estby, A.M. McKinney and J.B. Rykken

American Journal of Neuroradiology May 2018, 39 (5) 986-991; DOI: https://doi.org/10.3174/ajnr.A5596

35 Years Ago in AJNR

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Celebrating 35 Years of the AJNR
American Journal of Neuroradiology May 2018, 39 (5) 992; DOI: https://doi.org/10.3174/ajnr.P0061

Letters: (Online only)

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Pacemakers in MRI for the Neuroradiologist: Revisited
E. Kanal

American Journal of Neuroradiology May 2018, 39 (5) E54-E55; DOI: https://doi.org/10.3174/ajnr.A5565
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Reply:
A.W. Korutz, T.A. Hijaz, J.D. Collins and A.J. Nemeth

American Journal of Neuroradiology May 2018, 39 (5) E56; DOI: https://doi.org/10.3174/ajnr.A5575
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Interaction Should Guide Management Decisions
E. Johansson and J. Salzer

American Journal of Neuroradiology May 2018, 39 (5) E57; DOI: https://doi.org/10.3174/ajnr.A5579
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Reply:
A.P. Jadhav, B.K. Menon and M. Goyal

American Journal of Neuroradiology May 2018, 39 (5) E58; DOI: https://doi.org/10.3174/ajnr.A5617
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Triage in the Angiography Suite for Mechanical Thrombectomy in Acute Ischemic Stroke: Not Such a Good Idea
F. Clarençon, C. Rosso, V. Degos, E. Shotar, C. Rolla-Bigliani, Y. Samson, S. Alamowitch and N.-A. Sourour

American Journal of Neuroradiology May 2018, 39 (5) E59-E60; DOI: https://doi.org/10.3174/ajnr.A5610

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Level 1 EBM Expedited Publication

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35 Years Ago in AJNR

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