American Journal of Neuroradiology: 37 (1)

January 01, 2016; Volume 37,Issue 1

Perspectives

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Jeffrey S. Ross

American Journal of Neuroradiology January 2016, 37 (1) 1; DOI: https://doi.org/10.3174/ajnr.P0011

Review Article

FELLOWS' JOURNAL CLUBEXTRACRANIAL VASCULAR

Open Access
Carotid Near-Occlusion: A Comprehensive Review, Part 1—Definition, Terminology, and Diagnosis
E. Johansson and A.J. Fox

American Journal of Neuroradiology January 2016, 37 (1) 2-10; DOI: https://doi.org/10.3174/ajnr.A4432

Carotid near-occlusion is distal luminal collapse of the internal carotid artery beyond a tight stenosis. Calculating percentage stenosis for carotid near-occlusion is fallacious, and near-occlusion assessment is advised before measuring for percentage stenosis. This systematic review presents what is known about carotid near-occlusion and focuses on definition, terminology, and diagnosis.

Patient Safety

FELLOWS' JOURNAL CLUBPEDIATRICS

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Minimizing Radiation Exposure in Evaluation of Pediatric Head Trauma: Use of Rapid MR Imaging
H. Mehta, J. Acharya, A.L. Mohan, M.E. Tobias, L. LeCompte and D. Jeevan

American Journal of Neuroradiology January 2016, 37 (1) 11-18; DOI: https://doi.org/10.3174/ajnr.A4464

This study is a retrospective review of 103 pediatric patients who underwent initial head CT and subsequent follow-up rapid MR imaging between January 2010 and July 2013. Patients had minor head injuries that required imaging. There was almost perfect agreement in the ability to detect extra-axial hemorrhage on rapid MR imaging and CT (kappa = 0.84). Evaluation of hemorrhagic contusion/hemorrhage demonstrated a moderate level of agreement between MR imaging and CT (kappa = 0.61). The authors conclude that rapid MRI is an adequate imaging technique for the follow-up of pediatric patients with minor head trauma.

Methodologic Perspectives

INTERVENTIONAL

Open Access
A New Aneurysm Occlusion Classification after the Impact of Flow Modification
H.S. Cekirge and I. Saatci

American Journal of Neuroradiology January 2016, 37 (1) 19-24; DOI: https://doi.org/10.3174/ajnr.A4489

General Contents

ADULT BRAIN

Open Access
Differentiating Tumor Progression from Pseudoprogression in Patients with Glioblastomas Using Diffusion Tensor Imaging and Dynamic Susceptibility Contrast MRI
S. Wang, M. Martinez-Lage, Y. Sakai, S. Chawla, S.G. Kim, M. Alonso-Basanta, R.A. Lustig, S. Brem, S. Mohan, R.L. Wolf, A. Desai and H. Poptani

American Journal of Neuroradiology January 2016, 37 (1) 28-36; DOI: https://doi.org/10.3174/ajnr.A4474
ADULT BRAIN

Open Access
Texture Feature Ratios from Relative CBV Maps of Perfusion MRI Are Associated with Patient Survival in Glioblastoma
J. Lee, R. Jain, K. Khalil, B. Griffith, R. Bosca, G. Rao and A. Rao

American Journal of Neuroradiology January 2016, 37 (1) 37-43; DOI: https://doi.org/10.3174/ajnr.A4534
ADULT BRAIN

Open Access
Diagnostic and Prognostic Value of ¹¹C-Methionine PET for Nonenhancing Gliomas
K. Takano, M. Kinoshita, H. Arita, Y. Okita, Y. Chiba, N. Kagawa, Y. Fujimoto, H. Kishima, Y. Kanemura, M. Nonaka, S. Nakajima, E. Shimosegawa, J. Hatazawa, N. Hashimoto and T. Yoshimine

American Journal of Neuroradiology January 2016, 37 (1) 44-50; DOI: https://doi.org/10.3174/ajnr.A4460
ADULT BRAIN

Open Access
Comparison of the Effect of Vessel Size Imaging and Cerebral Blood Volume Derived from Perfusion MR Imaging on Glioma Grading
H.-Y. Kang, H.-L. Xiao, J.-H. Chen, Y. Tan, X. Chen, T. Xie, J.-Q. Fang, S. Wang, Y. Yang and W.-G. Zhang

American Journal of Neuroradiology January 2016, 37 (1) 51-57; DOI: https://doi.org/10.3174/ajnr.A4477
ADULT BRAIN

Open Access
MR Imaging–Based Analysis of Glioblastoma Multiforme: Estimation of IDH1 Mutation Status
K. Yamashita, A. Hiwatashi, O. Togao, K. Kikuchi, R. Hatae, K. Yoshimoto, M. Mizoguchi, S.O. Suzuki, T. Yoshiura and H. Honda

American Journal of Neuroradiology January 2016, 37 (1) 58-65; DOI: https://doi.org/10.3174/ajnr.A4491
ADULT BRAIN

Open Access
Improved Brain Tumor Classification by Sodium MR Imaging: Prediction of IDH Mutation Status and Tumor Progression
A. Biller, S. Badde, A. Nagel, J.-O. Neumann, W. Wick, A. Hertenstein, M. Bendszus, F. Sahm, N. Benkhedah and J. Kleesiek

American Journal of Neuroradiology January 2016, 37 (1) 66-73; DOI: https://doi.org/10.3174/ajnr.A4493
ADULT BRAIN

Open Access
The Combined Performance of ADC, CSF CXC Chemokine Ligand 13, and CSF Interleukin 10 in the Diagnosis of Central Nervous System Lymphoma
M.C. Mabray, R.F. Barajas, J.E. Villanueva-Meyer, C.A. Zhang, F.E. Valles, J.L. Rubenstein and S. Cha

American Journal of Neuroradiology January 2016, 37 (1) 74-79; DOI: https://doi.org/10.3174/ajnr.A4450
ADULT BRAIN

Open Access
On the Use of DSC-MRI for Measuring Vascular Permeability
J.T. Skinner, P.L. Moots, G.D. Ayers and C.C. Quarles

American Journal of Neuroradiology January 2016, 37 (1) 80-87; DOI: https://doi.org/10.3174/ajnr.A4478
ADULT BRAIN

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Favorable Bridging Therapy Based on DWI-FLAIR Mismatch in Patients with Unclear-Onset Stroke
I. Mourand, D. Milhaud, C. Arquizan, K. Lobotesis, R. Schaub, P. Machi, X. Ayrignac, O.F. Eker, A. Bonafé and V. Costalat

American Journal of Neuroradiology January 2016, 37 (1) 88-93; DOI: https://doi.org/10.3174/ajnr.A4574
ADULT BRAIN

Open Access
Quantitative MRI for Analysis of Active Multiple Sclerosis Lesions without Gadolinium-Based Contrast Agent
I. Blystad, I. Håkansson, A. Tisell, J. Ernerudh, Ö. Smedby, P. Lundberg and E.-M. Larsson

American Journal of Neuroradiology January 2016, 37 (1) 94-100; DOI: https://doi.org/10.3174/ajnr.A4501
EDITOR'S CHOICEFUNCTIONAL

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Presurgical Assessment of the Sensorimotor Cortex Using Resting-State fMRI
F.C. Schneider, M. Pailler, I. Faillenot, F. Vassal, J. Guyotat, F.-G. Barral and C. Boutet

American Journal of Neuroradiology January 2016, 37 (1) 101-107; DOI: https://doi.org/10.3174/ajnr.A4472

Task-based approaches to functional localization of the motor cortex have limitations such as long scanning times and exclusion of patients with severe functional or neurologic disabilities and children. Resting-state fMRI may avoid these difficulties because patients do not perform any goal-directed tasks. Nineteen patients were prospectively evaluated by using task-based and resting-state fMRI to localize sensorimotor function. Independent component analyses were performed to generate spatial independent components reflecting functional brain networks or noise. The motor cortex was successfully and consistently identified by using resting-state fMRI. Hand, foot, and face regions were defined in a comparable fashion with task-based fMRI.
INTERVENTIONAL

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Association between CYP2C19 Polymorphisms and Outcomes in Cerebral Endovascular Therapy
M. Lin, M. Todaro, J. Chan, L. Churilov, W.S. Zhu, S. Ramdave, P.J. Mitchell, R.J. Dowling, P. Kwan and B. Yan

American Journal of Neuroradiology January 2016, 37 (1) 108-113; DOI: https://doi.org/10.3174/ajnr.A4481
INTERVENTIONAL

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Mechanical Thrombectomy Using the New ERIC Retrieval Device Is Feasible, Efficient, and Safe in Acute Ischemic Stroke: A Swiss Stroke Center Experience
T. Kahles, C. Garcia-Esperon, S. Zeller, M. Hlavica, J. Añon, M. Diepers, K. Nedeltchev and L. Remonda

American Journal of Neuroradiology January 2016, 37 (1) 114-119; DOI: https://doi.org/10.3174/ajnr.A4463
EDITOR'S CHOICEINTERVENTIONAL

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3D Printing of Intracranial Aneurysms Using Fused Deposition Modeling Offers Highly Accurate Replications
A.M.J. Frölich, J. Spallek, L. Brehmer, J.-H. Buhk, D. Krause, J. Fiehler and A. Kemmling

American Journal of Neuroradiology January 2016, 37 (1) 120-124; DOI: https://doi.org/10.3174/ajnr.A4486

The authors evaluated fused deposition modeling for the production of aneurysm models replicating patient-specific anatomy using 3D rotational angiographic data from 10 patients. A hollow model with connectors for silicone tubes was fabricated by using acrylonitrile butadiene styrene, the support material was then dissolved, and the surfaces finished by using NanoSeal. The models were filled with iodinated contrast and 3D rotational angiography was performed. Reproduction of hollow aneurysm models was technically feasible in 8 of 10 cases, and a high level of anatomic accuracy was observed.
INTERVENTIONAL

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Therapeutic Internal Carotid Artery Occlusion for Large and Giant Aneurysms: A Single Center Cohort of 146 Patients
R.S. Bechan, C.B. Majoie, M.E. Sprengers, J.P. Peluso, M. Sluzewski and W.J. van Rooij

American Journal of Neuroradiology January 2016, 37 (1) 125-129; DOI: https://doi.org/10.3174/ajnr.A4487
INTERVENTIONAL

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PulseRider Stent-Assisted Coiling of Wide-Neck Bifurcation Aneurysms: Periprocedural Results in an International Series
B. Gory, A.M. Spiotta, S. Mangiafico, A. Consoli, A. Biondi, E. Pomero, M. Killer-Oberpfalzer, W. Weber, R. Riva, P.E. Labeyrie and F. Turjman

American Journal of Neuroradiology January 2016, 37 (1) 130-135; DOI: https://doi.org/10.3174/ajnr.A4506
FELLOWS' JOURNAL CLUBHEAD & NECK

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Postoperative Imaging Findings following Sigmoid Sinus Wall Reconstruction for Pulse Synchronous Tinnitus
P. Raghavan, Y. Serulle, D. Gandhi, R. Morales, K. Quinn, K. Angster, R. Hertzano and D. Eisenman

American Journal of Neuroradiology January 2016, 37 (1) 136-142; DOI: https://doi.org/10.3174/ajnr.A4511

Transmastoid sigmoid sinus wall reconstruction (SSWR) is a surgical technique used for the treatment of pulsatile tinnitus arising from sigmoid sinus wall anomalies. In 13 patients, CT and MR imaging examinations were assessed for the characteristics of the materials used for reconstruction, the impact of these on the adjacent sigmoid sinus, and complications. The various materials used for reconstruction (NeuroAlloderm, HydroSet, bone pate) showed characteristic imaging appearances and could be consistently identified. In 5/13 patients, there was extrinsic compression of the sigmoid sinus by graft material. Dural sinus thrombosis occurred in 2 patients. Symptoms requiring postoperative imaging after SSWR include headaches, visual disturbances, and persistent or recurrent tinnitus.
HEAD & NECK

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Advanced Modeled Iterative Reconstruction in Low-Tube-Voltage Contrast-Enhanced Neck CT: Evaluation of Objective and Subjective Image Quality
J.-E. Scholtz, M. Kaup, K. Hüsers, M.H. Albrecht, B. Bodelle, S.C. Metzger, J.M. Kerl, R.W. Bauer, T. Lehnert, T.J. Vogl and J.L. Wichmann

American Journal of Neuroradiology January 2016, 37 (1) 143-150; DOI: https://doi.org/10.3174/ajnr.A4502
HEAD & NECK

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Endolymphatic Hydrops Reversal following Acetazolamide Therapy: Demonstration with Delayed Intravenous Contrast-Enhanced 3D-FLAIR MRI
A.R. Sepahdari, N. Vorasubin, G. Ishiyama and A. Ishiyama

American Journal of Neuroradiology January 2016, 37 (1) 151-154; DOI: https://doi.org/10.3174/ajnr.A4462
PEDIATRICS

Open Access
Evolution of T1 Relaxation, ADC, and Fractional Anisotropy during Early Brain Maturation: A Serial Imaging Study on Preterm Infants
J. Schneider, T. Kober, M. Bickle Graz, R. Meuli, P.S. Hüppi, P. Hagmann and A.C. Truttmann

American Journal of Neuroradiology January 2016, 37 (1) 155-162; DOI: https://doi.org/10.3174/ajnr.A4510
PEDIATRICS

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Parenchymal Brain Laceration as a Predictor of Abusive Head Trauma
L.A. Palifka, L.D. Frasier, R.R. Metzger and G.L. Hedlund

American Journal of Neuroradiology January 2016, 37 (1) 163-168; DOI: https://doi.org/10.3174/ajnr.A4519
PEDIATRICS

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The Arcuate Fasciculus and Language Development in a Cohort of Pediatric Patients with Malformations of Cortical Development
M.J. Paldino, K. Hedges and F. Golriz

American Journal of Neuroradiology January 2016, 37 (1) 169-175; DOI: https://doi.org/10.3174/ajnr.A4461
SPINE

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Asymmetry of the Odontoid Lateral Mass Interval in Pediatric Trauma CT: Do We Need to Investigate Further?
A. Eran, D.M. Yousem and I. Izbudak

American Journal of Neuroradiology January 2016, 37 (1) 176-179; DOI: https://doi.org/10.3174/ajnr.A4492
SPINE

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Proton Density MRI Increases Detection of Cervical Spinal Cord Multiple Sclerosis Lesions Compared with T2-Weighted Fast Spin-Echo
A.L. Chong, R.V. Chandra, K.C. Chuah, E.L. Roberts and S.L. Stuckey

American Journal of Neuroradiology January 2016, 37 (1) 180-184; DOI: https://doi.org/10.3174/ajnr.A4476
SPINE

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Predicting High-Flow Spinal CSF Leaks in Spontaneous Intracranial Hypotension Using a Spinal MRI-Based Algorithm: Have Repeat CT Myelograms Been Reduced?
J.T. Verdoorn, P.H. Luetmer, C.M. Carr, J.I. Lane, V.T. Lehman, J.M. Morris, K.R. Thielen, J.T. Wald and F.E. Diehn

American Journal of Neuroradiology January 2016, 37 (1) 185-188; DOI: https://doi.org/10.3174/ajnr.A4465
EDITOR'S CHOICESPINE

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Spine Cryoablation: Pain Palliation and Local Tumor Control for Vertebral Metastases
A. Tomasian, A. Wallace, B. Northrup, T.J. Hillen and J.W. Jennings

American Journal of Neuroradiology January 2016, 37 (1) 189-195; DOI: https://doi.org/10.3174/ajnr.A4521

This is a retrospective study of imaging-guided spine cryoablation that was performed on 31 vertebral metastases in 14 patients. The lesions were refractory to conventional chemoradiation therapy or analgesics and were ablated to achieve pain palliation and local tumor control. The procedures were performed with the patient under conscious sedation (13 patients) or general anesthesia in 1 case. Postcryoablation MR imaging and PET/CT imaging were available for all patients. Spinal nerve and soft-tissue thermal protection techniques were implemented in all ablations (epidural or neuroforaminal carbon dioxide or warmed 5% dextrose). There were statistically significant decreases in the median numeric pain rating scale score and analgesic usage at 1-week, 1-month, and 3-month time points. Local tumor control was achieved in 96.7% (30/31) of tumors.

Memorial

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Georges Salamon
C. Manelfe, R.N. Bryan and C. Strother

American Journal of Neuroradiology January 2016, 37 (1) 196-197; DOI: https://doi.org/10.3174/ajnr.A4621

35 Years Ago in AJNR

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Celebrating 35 Years of the AJNR
American Journal of Neuroradiology January 2016, 37 (1) 198; DOI: https://doi.org/10.3174/ajnr.P0010

Letters: (Online only)

Open Access
Recent Advances in Understanding Gadolinium Retention in the Brain
T. Kanda, H. Oba, K. Toyoda and S. Furui

American Journal of Neuroradiology January 2016, 37 (1) E1-E2; DOI: https://doi.org/10.3174/ajnr.A4586
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Reply:
M.E. Adin, L. Kleinberg, D. Vaidya, E. Zan, S. Mirbagheri and D.M. Yousem

American Journal of Neuroradiology January 2016, 37 (1) E3-E4; DOI: https://doi.org/10.3174/ajnr.A4608
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Carotid Web: Appearance at MR Angiography
J.E. Lantos, J.L. Chazen and A. Gupta

American Journal of Neuroradiology January 2016, 37 (1) E5-E6; DOI: https://doi.org/10.3174/ajnr.A4598
Open Access
Risk of Malignancy in Symptomatic Nodular Goiter Treated with Radiofrequency Ablation
L. Yang, H. Tang, A.M. Lee, Y. Zou, X. Huang, X. Tang and H.X. Bai

American Journal of Neuroradiology January 2016, 37 (1) E7-E8; DOI: https://doi.org/10.3174/ajnr.A4580
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Reply:
Y. Che

American Journal of Neuroradiology January 2016, 37 (1) E9-E10; DOI: https://doi.org/10.3174/ajnr.A4612

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Table of Contents

Perspectives

Review Article

Patient Safety

Methodologic Perspectives

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General Contents

Memorial

35 Years Ago in AJNR

Letters: (Online only)

In this issue

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Opportunities

American Society of Neuroradiology