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    Table of Contents — June 01, 2018, 39 (6) | American Journal of Neuroradiology  
    
















    





















    
  
  




    
    

  

      


    

      

  
  
  

    

  

    

  

                
    

      

  

    

  
      
  
  

    


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Table of Contents
  	
      
June 01, 2018; Volume 39,Issue 6 

  
  
   

  
  



  


  
  



			

		

	
	
 	
	  
  

		
		

			

			  

  
      
  
  

    
Perspectives
  • 
  
  
  
      
    
  
      Perspectives  
    	
    Eman Attaya
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 993; DOI: https://doi.org/10.3174/ajnr.P0054 
    
  
  
  

    

Review Article
Research Perspectives
General Contents
  • 
  
  
      
    EDITOR'S CHOICEAdult Brain 
    
  
      
    Open Access
    
  
      Multisite Concordance of DSC-MRI Analysis for Brain Tumors: Results of a National Cancer Institute Quantitative Imaging Network Collaborative Project  
    	
    K.M. Schmainda, M.A. Prah, S.D. Rand, Y. Liu, B. Logan, M. Muzi, S.D. Rane, X. Da, Y.-F. Yen, J. Kalpathy-Cramer, T.L. Chenevert, B. Hoff, B. Ross, Y. Cao, M.P. Aryal, B. Erickson, P. Korfiatis, T. Dondlinger, L. Bell, L. Hu, P.E. Kinahan and C.C. Quarles
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1008-1016; DOI: https://doi.org/10.3174/ajnr.A5675 
    
  
    	
    DSC-MR imaging data were collected after a preload and during a bolus injection of gadolinium contrast agent using a gradient recalled-echo-EPI sequence. Forty-nine low-grade and high-grade glioma datasets were uploaded to The Cancer Imaging Archive. Datasets included a predetermined arterial input function, enhancing tumor ROIs, and ROIs necessary to create normalized relative CBV and CBF maps. Seven sites computed 20 different perfusion metrics. For normalized relative CBV and normalized CBF, 93% and 94% of entries showed good or excellent cross-site agreement. All metrics could distinguish low- from high-grade tumors.
    
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    Open Access
    
  
      Edge Contrast of the FLAIR Hyperintense Region Predicts Survival in Patients with High-Grade Gliomas following Treatment with Bevacizumab  
    	
    N. Bahrami, D. Piccioni, R. Karunamuni, Y.-H. Chang, N. White, R. Delfanti, T.M. Seibert, J.A. Hattangadi-Gluth, A. Dale, N. Farid and C.R. McDonald
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1017-1024; DOI: https://doi.org/10.3174/ajnr.A5620 
    
  
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    Open Access
    
  
      Postcontrast T1 Mapping for Differential Diagnosis of Recurrence and Radionecrosis after Gamma Knife Radiosurgery for Brain Metastasis  
    	
    B. Wang, Y. Zhang, B. Zhao, P. Zhao, M. Ge, M. Gao, F. Ding, S. Xu and Y. Liu
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1025-1031; DOI: https://doi.org/10.3174/ajnr.A5643 
    
  
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    Open Access
    
  
      Comparative Analysis of Diffusional Kurtosis Imaging, Diffusion Tensor Imaging, and Diffusion-Weighted Imaging in Grading and Assessing Cellular Proliferation of Meningiomas  
    	
    L. Lin, R. Bhawana, Y. Xue, Q. Duan, R. Jiang, H. Chen, X. Chen, B. Sun and H. Lin
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1032-1038; DOI: https://doi.org/10.3174/ajnr.A5662 
    
  
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    Open Access
    
  
      Sequential Apparent Diffusion Coefficient for Assessment of Tumor Progression in Patients with Low-Grade Glioma  
    	
    I.E. Chen, N. Swinburne, N.M. Tsankova, M.M. Hefti, A. Aggarwal, A.H. Doshi, A. Hormigo, B.N. Delman and K. Nael
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1039-1046; DOI: https://doi.org/10.3174/ajnr.A5639 
    
  
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    
  
      MRI Planimetry and Magnetic Resonance Parkinsonism Index in the Differential Diagnosis of Patients with Parkinsonism  
    	
    V.C. Constantinides, G.P. Paraskevas, G. Velonakis, P. Toulas, E. Stamboulis and E. Kapaki
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1047-1051; DOI: https://doi.org/10.3174/ajnr.A5618 
    
  
  
  

    

  • 
  
  
      
    EDITOR'S CHOICEAdult Brain 
    
  
      
    Open Access
    
  
      Dark Rims: Novel Sequence Enhances Diagnostic Specificity in Multiple Sclerosis  
    	
    J.-M. Tillema, S.D. Weigand, M. Dayan, Y. Shu, O.H. Kantarci, C.F. Lucchinetti and J.D. Port
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1052-1058; DOI: https://doi.org/10.3174/ajnr.A5636 
    
  
    	
    The authors compared WM lesions in a group of patients with multiple sclerosis and in a second group of positive controls with white matter lesions who did not have a diagnosis of MS. The presence of a rim on the gray matter-double inversion recovery MR imaging sequence was combined with the 2001 and 2010 McDonald disseminated-in-space criteria. Multiple MR imaging markers, including lesion location, size, and the presence of a rim, were compared between groups as well as a quantitative measure of lesion T1 hypointensity. MR images from 107 patients with relapsing-remitting MS and 36 positive control subjects were analyzed. In patients with MS, 1120/3211 lesions (35%) had a rim on GM-double inversion recovery; the positive control group had only 9/893 rim lesions (1%). The addition of a novel GM-double inversion recovery technique enhanced specificity for diagnosing MS compared with established MR imaging criteria.
    
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    
  
      Association of Quantified Location-Specific Blood Volumes with Delayed Cerebral Ischemia after Aneurysmal Subarachnoid Hemorrhage  
    	
    W.E. van der Steen, I.A. Zijlstra, D. Verbaan, A.M.M. Boers, C.S. Gathier, R. van den Berg, G.J.E. Rinkel, B.A. Coert, Y.B.W.E.M. Roos, C.B.L.M. Majoie and H.A. Marquering
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1059-1064; DOI: https://doi.org/10.3174/ajnr.A5626 
    
  
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    
  
      Blood Flow Mimicking Aneurysmal Wall Enhancement: A Diagnostic Pitfall of Vessel Wall MRI Using the Postcontrast 3D Turbo Spin-Echo MR Imaging Sequence  
    	
    E. Kalsoum, A. Chabernaud Negrier, T. Tuilier, A. Benaïssa, R. Blanc, S. Gallas, J.-P. Lefaucheur, A. Gaston, R. Lopes, P. Brugières and J. Hodel
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1065-1067; DOI: https://doi.org/10.3174/ajnr.A5616 
    
  
  
  

    

  • 
  
  
      
    Adult Brain 
    
  
      
    Open Access
    
  
      Use of Diffusional Kurtosis Imaging and Dynamic Contrast-Enhanced MR Imaging to Predict Posttraumatic Epilepsy in Rabbits  
    	
    W. Li, X. Wang, X. Wei and M. Wang
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1068-1073; DOI: https://doi.org/10.3174/ajnr.A5656 
    
  
  
  

    

  • 
  
  
      
    FELLOWS' JOURNAL CLUBInterventional 
    
  
      
    
  
      Value of Quantitative Collateral Scoring on CT Angiography in Patients with Acute Ischemic Stroke  
    	
    A.M.M. Boers, R. Sales Barros, I.G.H. Jansen, O.A. Berkhemer, L.F.M. Beenen, B.K. Menon, D.W.J. Dippel, A. van der Lugt, W.H. van Zwam, Y.B.W.E.M. Roos, R.J. van Oostenbrugge, C.H. Slump, C.B.L.M. Majoie and H.A. Marquering on behalf of the MR CLEAN investigators
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1074-1082; DOI: https://doi.org/10.3174/ajnr.A5623 
    
  
    	
    From the MR CLEAN data base, all baseline thin-slice CTA images of patients with acute ischemic stroke with intracranial large-vessel occlusion were retrospectively collected. The quantitative collateral score was calculated as the ratio of the vascular appearance of both hemispheres and was compared with the visual collateral score. Primary outcomes were 90-day mRS score and follow-up infarct volume. A total of 442 patients were included. The quantitative collateral score strongly correlated with the visual collateral score and was an independent predictor of mRS and follow-up infarct volume per 10% increase. The quantitative collateral score showed areas under the curve of 0.71 and 0.69 for predicting functional independence (mRS 0-2) and follow-up infarct volume of greater than 90 mL, respectively. The authors conclude that automated quantitative collateral scoring in patients with acute ischemic stroke is a reliable and user-independent measure of the collateral capacity on baseline CTA and has the potential to augment the triage of patients with acute stroke for endovascular therapy.
    
  
  

    

  • 
  
  
      
    Interventional 
    
  
      
    Open Access
    
  
      Clinical Outcomes of Endovascular Treatment within 24 Hours in Patients with Mild Ischemic Stroke and Perfusion Imaging Selection  
    	
    X. Shang, M. Lin, S. Zhang, S. Li, Y. Guo, W. Wang, M. Zhang, Y. Wan, Z. Zhou, W. Zi and X. Liu
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1083-1087; DOI: https://doi.org/10.3174/ajnr.A5644 
    
  
  
  

    

  • 
  
  
      
    Interventional 
    
  
      
    Open Access
    
  
      Slow Collateral Flow Is Associated with Thrombus Extension in Patients with Acute Large-Artery Occlusion  
    	
    R. Zhang, Y. Zhou, S. Yan, S. Zhang, X. Ding and M. Lou
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1088-1092; DOI: https://doi.org/10.3174/ajnr.A5614 
    
  
  
  

    

  • 
  
  
      
    FELLOWS' JOURNAL CLUBInterventional 
    
  
      
    
  
      Multicentric Experience in Distal-to-Proximal Revascularization of Tandem Occlusion Stroke Related to Internal Carotid Artery Dissection  
    	
    G. Marnat, M. Bühlmann, O.F. Eker, J. Gralla, P. Machi, U. Fischer, C. Riquelme, M. Arnold, A. Bonafé, S. Jung, V. Costalat and P. Mordasini
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1093-1099; DOI: https://doi.org/10.3174/ajnr.A5640 
    
  
    	
    Prospectively managed stroke data bases from 2 separate centers were retrospectively studied between 2009 and 2014 for records of tandem occlusions related to internal carotid dissection. The first step in the revascularization procedure was intracranial thrombectomy. Then, cervical carotid stent placement was performed depending on the functionality of the circle of Willis and the persistence of residual cervical ICA occlusion, severe stenosis, or thrombus apposition. Efficiency, complications, and radiologic and clinical outcomes were recorded. Thirty-four patients presenting with tandem occlusion stroke secondary to internal carotid dissection were treated during the study period. The mean age was 52.5 years, the mean initial NIHSS score was 17, and the mean delay between onset and groin puncture was 3.58 hours. Recanalization of TICI 2b/3 was obtained in 21 cases (62%). Fifteen patients underwent cervical carotid stent placement. There was no recurrence of ipsilateral stroke in the nonstented subgroup. The authors conclude that endovascular treatment of internal carotid dissection-related tandem occlusion stroke using the distal-to-proximal recanalization strategy appears to be feasible, with low complication rates and considerable rates of successful recanalization.
    
  
  

    

  • 
  
  
      
    Interventional 
    
  
      
    
  
      Treatment of Distal Anterior Cerebral Artery Aneurysms with Flow-Diverter Stents: A Single-Center Experience  
    	
    F. Cagnazzo, M. Cappucci, C. Dargazanli, P.-H. Lefevre, G. Gascou, C. Riquelme, A. Bonafe and V. Costalat
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1100-1106; DOI: https://doi.org/10.3174/ajnr.A5615 
    
  
  
  

    

  • 
  
  
      
    Interventional 
    
  
      
    
  
      Surpass Streamline Flow-Diverter Embolization Device for Treatment of Iatrogenic and Traumatic Internal Carotid Artery Injuries  
    	
    M. Ghorbani, H. Shojaei, K. Bavand and M. Azar
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1107-1111; DOI: https://doi.org/10.3174/ajnr.A5607 
    
  
  
  

    

  • 
  
  
      
    Extracranial Vascular 
    
  
      
    Open Access
    
  
      Comparison of 3T Intracranial Vessel Wall MRI Sequences  
    	
    A. Lindenholz, A.A. Harteveld, J.J.M. Zwanenburg, J.C.W. Siero and J. Hendrikse
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1112-1120; DOI: https://doi.org/10.3174/ajnr.A5629 
    
  
  
  

    

  • 
  
  
      
    Extracranial Vascular 
    
  
      
    
  
      Anatomic and Angiographic Analyses of Ophthalmic Artery Collaterals in Moyamoya Disease  
    	
    T. Robert, G. Cicciò, P. Sylvestre, A. Chiappini, A.G. Weil, S. Smajda, C. Chaalala, R. Blanc, M. Reinert, M. Piotin and M.W. Bojanowski
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1121-1126; DOI: https://doi.org/10.3174/ajnr.A5622 
    
  
  
  

    

  • 
  
  
      
    Functional 
    
  
      
    
  
      Segmentation of the Globus Pallidus Internus Using Probabilistic Diffusion Tractography for Deep Brain Stimulation Targeting in Parkinson Disease  
    	
    E.H. Middlebrooks, I.S. Tuna, S.S. Grewal, L. Almeida, M.G. Heckman, E.R. Lesser, K.D. Foote, M.S. Okun and V.M. Holanda
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1127-1134; DOI: https://doi.org/10.3174/ajnr.A5641 
    
  
  
  

    

  • 
  
  
      
    FELLOWS' JOURNAL CLUBHead & Neck 
    
  
      
    Open Access
    
  
      Cavitary Plaques in Otospongiosis: CT Findings and Clinical Implications  
    	
    P. Puac, A. Rodríguez, H.-C. Lin, V. Onofrj, F.-C. Lin, S.-C. Hung, C. Zamora and M. Castillo
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1135-1139; DOI: https://doi.org/10.3174/ajnr.A5613 
    
  
    	
    Cross-sectional CT images and clinical records of 47 patients (89 temporal bones) were evaluated for the presence, location, and imaging features of cavitary and noncavitaryotospongiotic plaques, as well as clinical symptoms and complications in those who underwent cochlear implantation. Noncavitaryotospongiotic plaques were present in 86 (97%) temporal bones and cavitary plaques in 30 (35%). Cavitary plaques predominated with increasing age, mostly involving the anteroinferior wall of the internal auditory canal, and their presence was not associated with a higher grade of otospongiosis by imaging or with a specific type of hearing loss. The authors conclude that cavitary plaques occurred in one-third of patients with otospongiosis.
    
  
  

    

  • 
  
  
      
    Head & Neck 
    
  
      
    
  
      Submandibular Gland Transfer: A Potential Imaging Pitfall  
    	
    X. Wu, S.S. Yom, P.K. Ha, C.M. Heaton and C.M. Glastonbury
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1140-1145; DOI: https://doi.org/10.3174/ajnr.A5609 
    
  
  
  

    

  • 
  
  
      
    EDITOR'S CHOICEPediatrics 
    
  
      
    
  
      Characteristic MR Imaging Findings of the Neonatal Brain in RASopathies  
    	
    M.N. Cizmeci, M. Lequin, K.D. Lichtenbelt, D. Chitayat, P. Kannu, A.G. James, F. Groenendaal, E. Chakkarapani, S. Blaser and L.S. de Vries
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1146-1152; DOI: https://doi.org/10.3174/ajnr.A5611 
    
  
    	
    An observational case-control study of neonates with a confirmed RASopathy was conducted. The authors reviewed 48 brain MR studies performed at 3 academic centers in 3 countries between 2009 and 2017. Sixteen of these infants had a genetically confirmed RASopathy (group 1), and 32 healthy infants were enrolled as the control group (group 2). An increased rate of white matter lesions, extracerebral space enlargement, simplification of the cortical gyrification, and white matter abnormalities were seen in group 1. The vermis height of patients was significantly lower, and tentorial and infratentorial angles were significantly higher in group 1. Neonates with a RASopathy had characteristic structural and acquired abnormalities in the cortical gray matter, white matter, corpus callosum, cerebellum, and posterior fossa.
    
  
  

    

  • 
  
  
      
    Pediatrics 
    
  
      
    
  
      Clival Malformations in CHARGE Syndrome  
    	
    E.S. Mahdi and M.T. Whitehead
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1153-1156; DOI: https://doi.org/10.3174/ajnr.A5612 
    
  
  
  

    

  • 
  
  
      
    Pediatrics 
    
  
      
    
  
      Noninvasive Assessment of Hemodynamic Stress Distribution after Indirect Revascularization for Pediatric Moyamoya Vasculopathy  
    	
    D. Tortora, M. Severino, M. Pacetti, G. Morana, M.M. Mancardi, V. Capra, A. Cama, M. Pavanello and A. Rossi
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1157-1163; DOI: https://doi.org/10.3174/ajnr.A5627 
    
  
  
  

    

  • 
  
  
      
    Pediatrics 
    
  
      
    
  
      Volumetric Brain MRI Study in Fetuses with Congenital Heart Disease  
    	
    H. Olshaker, R. Ber, D. Hoffman, E. Derazne, R. Achiron and E. Katorza
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1164-1169; DOI: https://doi.org/10.3174/ajnr.A5628 
    
  
  
  

    

  • 
  
  
      
    Pediatrics 
    
  
      
    Open Access
    
  
      Postnatal Brain Growth Assessed by Sequential Cranial Ultrasonography in Infants Born <30 Weeks' Gestational Age  
    	
    R. Cuzzilla, A.J. Spittle, K.J. Lee, S. Rogerson, F.M. Cowan, L.W. Doyle and J.L.Y. Cheong
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1170-1176; DOI: https://doi.org/10.3174/ajnr.A5679 
    
  
  
  

    

  • 
  
  
      
    Pediatrics 
    
  
      
    Open Access
    
  
      Altered White Matter Microstructure in the Corpus Callosum and Its Cerebral Interhemispheric Tracts in Adolescent Idiopathic Scoliosis: Diffusion Tensor Imaging Analysis  
    	
    C. Xue, L. Shi, S.C.N. Hui, D. Wang, T.P. Lam, C.-B. Ip, B.K.W. Ng, J.C.Y. Cheng and W.C.W. Chu
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1177-1184; DOI: https://doi.org/10.3174/ajnr.A5634 
    
  
  
  

    

  • 
  
  
      
    Spine 
    
  
      
    
  
      CSF Pressure Change in Relation to Opening Pressure and CSF Volume Removed  
    	
    B. Griffith, T. Capobres, S.C. Patel, H. Marin, A. Katramados and L.M. Poisson
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1185-1190; DOI: https://doi.org/10.3174/ajnr.A5642 
    
  
  
  

    

Memorial
  • 
  
  
  
      
    
  
      Brian C. Bowen, MD, PhD  
    	
    Robert M. Quencer
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) 1191; DOI: https://doi.org/10.3174/ajnr.A5683 
    
  
  
  

    

Consensus Statement: (Online only)
  • 
  
  
  
      
    
  
      Multisociety Consensus Quality Improvement Revised Consensus Statement for Endovascular Therapy of Acute Ischemic Stroke  
    	
    From the American Association of Neurological Surgeons (AANS), American Society of Neuroradiology (ASNR), Cardiovascular and Interventional Radiology Society of Europe (CIRSE), Canadian Interventional Radiology Association (CIRA), Congress of Neurological Surgeons (CNS), European Society of Minimally Invasive Neurological Therapy (ESMINT), European Society of Neuroradiology (ESNR), European Stroke Organization (ESO), Society for Cardiovascular Angiography and Interventions (SCAI), Society of Interventional Radiology (SIR), Society of NeuroInterventional Surgery (SNIS), and World Stroke Organization (WSO), D. Sacks, B. Baxter, B.C.V. Campbell, J.S. Carpenter, C. Cognard, D. Dippel, M. Eesa, U. Fischer, K. Hausegger, J.A. Hirsch, M.S. Hussain, O. Jansen, M.V. Jayaraman, A.A. Khalessi, B.W. Kluck, S. Lavine, P.M. Meyers, S. Ramee, D.A. Rüfenacht, C.M. Schirmer and D. Vorwerk
    
  
    	
    American Journal of Neuroradiology June 2018, 39 (6) E61-E76; DOI: https://doi.org/10.3174/ajnr.A5638 
    
  
  
  

    

Letters: (Online only)
  


  
  



  
      
  
  

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