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    Index by author — May 01, 2019, 40 (5) | American Journal of Neuroradiology  
    
















    





















    
  
  




    
    

  

      


    

      

  
  
  

    

  

    

  

                
    

      

  

    

  
      
  
  

    


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Index by author
  	
      
May 01, 2019; Volume 40,Issue 5 

  
  
   

  
  



  


  
  



			

		

	
	
 	
	  
  

		
		

			

			  

  
      
  
  

    
  1. Madigubba, S.
    1. 
  
  
      
      FELLOWS' JOURNAL CLUBPediatrics 
      
  
      
      
  
      Focal Cortical Dysplasia and Refractory Epilepsy: Role of Multimodality Imaging and Outcome of Surgery  
    	
      S. Jayalakshmi, S.K. Nanda, S. Vooturi, R. Vadapalli, P. Sudhakar, S. Madigubba and M. Panigrahi
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 892-898; DOI: https://doi.org/10.3174/ajnr.A6041 
      
  
    	
      The authors performed a retrospective analysis of data from 188 consecutive patients with focal cortical dysplasia and refractory epilepsy with at least 2 years of postsurgery follow-up. Predictors of seizure freedom and the sensitivity of neuroimaging modalities were analyzed. MR imaging showed clear-cut FCD in 136 (72.3%) patients. Interictal FDG-PET showed focal hypo-/hypermetabolism in 144 (76.6%); in 110 patients in whom ictal SPECT was performed, focal hyperperfusion was noted in 77 (70.3%). Focal resection was the most common surgery performed in 112 (59.6%) patients. Histopathology revealed type I FCD in 102 (54.3%) patients. At last follow-up, 124 (66.0%) were seizure-free. Complete resection of FCD and type II FCD were predictors of seizure freedom. Localization of FCD on either MR imaging or PET or ictal SPECT had the highest sensitivity for seizure freedom at 97.5%. They conclude that during presurgical multimodality evaluation, localization of the extent of the epileptogenic zone in at least 2 imaging modalities helps achieve seizure freedom in about two-thirds of patients with refractory epilepsy due to FCD. FDG-PET is the most sensitive imaging modality for seizure freedom, especially in patients with type I FCD.
      
  
  

      

  2. Margol, A.
    1. 
  
  
      
      FELLOWS' JOURNAL CLUBPediatrics 
      
  
      
      
  
      Pediatric Atypical Teratoid/Rhabdoid Tumors of the Brain: Identification of Metabolic Subgroups Using In Vivo 1H-MR Spectroscopy  
    	
      B. Tamrazi, S. Venneti, A. Margol, D. Hawes, S.Y. Cen, M. Nelson, A. Judkins, J. Biegel and S. Blüml
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 872-877; DOI: https://doi.org/10.3174/ajnr.A6024 
      
  
    	
      Twenty patients with confirmed atypical teratoid/rhabdoid tumors who underwent MR spectroscopy were included in this study. In vivo metabolite levels of atypical teratoid/rhabdoid tumors were compared with molecular subtypes assessed by achaete-scute homolog 1 expression. In vivo creatine concentrations were higher in tumors that demonstrated achaete-scute homolog 1 expression compared with those without achaete-scute homolog 1 expression. Additionally, levels of myo-inositol were significantly different, whereas lipids approached significance in these 2 cohorts. Higher brain-specific creatine kinase levels were observed in the cohort with achaete-scute homolog 1 expression.
      
  
  

      

  3. Martinot, C.A.
    1. 
  
  
      
      Pediatrics 
      
  
      
      
  
      Comparison of Iterative Model Reconstruction versus Filtered Back-Projection in Pediatric Emergency Head CT: Dose, Image Quality, and Image-Reconstruction Times  
    	
      R.N. Southard, D.M.E. Bardo, M.H. Temkit, M.A. Thorkelson, R.A. Augustyn and C.A. Martinot
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 866-871; DOI: https://doi.org/10.3174/ajnr.A6034 
      
  
  
  

      

  4. Meisel, K.
    1. 
  
  
      
      Head & Neck 
      
  
      
      Open Access
      
  
      Reduced Jet Velocity in Venous Flow after CSF Drainage: Assessing Hemodynamic Causes of Pulsatile Tinnitus  
    	
      H. Haraldsson, J.R. Leach, E.I. Kao, A.G. Wright, S.G. Ammanuel, R.S. Khangura, M.K. Ballweber, C.T. Chin, V.N. Shah, K. Meisel, D.A. Saloner and M.R. Amans
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 849-854; DOI: https://doi.org/10.3174/ajnr.A6043 
      
  
  
  

      

  5. Melhem, E.R.
    1. 
  
  
      
      LETTER 
      
  
      
      
  
      Use of Balanced Steady-State Free Precession Sequences in Evaluation of Drop Metastases  
    	
      A. Vossough and E.R. Melhem
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) E20; DOI: https://doi.org/10.3174/ajnr.A5964 
      
  
  
  

      

  6. Mihlon, F.
    1. 
  
  
      
      Spine 
      
  
      
      
  
      It Is Not Necessary to Discontinue Seizure Threshold–Lowering Medications Prior to Myelography  
    	
      M. Krupa, H. Salts and F. Mihlon
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 916-919; DOI: https://doi.org/10.3174/ajnr.A6027 
      
  
  
  

      

  7. Mochel, F.
    1. 
  
  
      
      Adult Brain 
      
  
      
      
  
      GJA1 Variants Cause Spastic Paraplegia Associated with Cerebral Hypomyelination  
    	
      L. Saint-Val, T. Courtin, P. Charles, C. Verny, M. Catala, R. Schiffmann, O. Boespflug-Tanguy and F. Mochel
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 788-791; DOI: https://doi.org/10.3174/ajnr.A6036 
      
  
  
  

      

  8. Momosaka, D.
    1. 
  
  
      
      FELLOWS' JOURNAL CLUBPediatrics 
      
  
      
      Open Access
      
  
      Intravoxel Incoherent Motion MR Imaging of Pediatric Intracranial Tumors: Correlation with Histology and Diagnostic Utility  
    	
      K. Kikuchi, A. Hiwatashi, O. Togao, K. Yamashita, R. Kamei, D. Momosaka, N. Hata, K. Iihara, S.O. Suzuki, T. Iwaki and H. Honda
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 878-884; DOI: https://doi.org/10.3174/ajnr.A6052 
      
  
    	
      Between April 2013 and September 2015, seventeen children with intracranial tumors were included in this retrospective study. Intravoxel incoherent motion parameters were fitted using 13 b-values for a biexponential model. The perfusion-free diffusion coefficient, pseudodiffusion coefficient, and perfusion fraction were measured in high- and low-grade tumors. The authors found significant correlations between the histology and IVIM parameters of different pediatric intracranial tumors. These results suggest that IVIM imaging reflects cell density and vascularity across different types of pediatric brain tumors. They also demonstrated that both the diffusion and perfusion parameters measured on IVIM imaging are useful for grading intracranial neuroectodermal tumors in pediatric patients.
      
  
  

      

  9. Montalban, X.
    1. 
  
  
      
      Adult Brain 
      
  
      
      
  
      The Central Vein Sign in Radiologically Isolated Syndrome  
    	
      S. Suthiphosuwan, P. Sati, M. Guenette, X. Montalban, D.S. Reich, A. Bharatha and J. Oh
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 776-783; DOI: https://doi.org/10.3174/ajnr.A6045 
      
  
  
  

      

  10. Moog, U.
    1. 
  
  
      
      Pediatrics 
      
  
      
      
  
      Oculodentodigital Dysplasia: A Hypomyelinating Leukodystrophy with a Characteristic MRI Pattern of Brain Stem Involvement  
    	
      I. Harting, S. Karch, U. Moog, A. Seitz, P.J.W. Pouwels and N.I. Wolf
      
  
    	
      American Journal of Neuroradiology May 2019, 40 (5) 903-907; DOI: https://doi.org/10.3174/ajnr.A6051 
      
  
  
  

      

  


  
  



  
      
  
  

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