Advertisement

AJNR Awards, New Junior Editors, and more. Read the latest AJNR updates

Index by author

August 01, 2016; Volume 37,Issue 8

  1. Lai, A.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Improved Leakage Correction for Single-Echo Dynamic Susceptibility Contrast Perfusion MRI Estimates of Relative Cerebral Blood Volume in High-Grade Gliomas by Accounting for Bidirectional Contrast Agent Exchange
      K. Leu, J.L. Boxerman, T.F. Cloughesy, A. Lai, P.L. Nghiemphu, L.M. Liau, W.B. Pope and B.M. Ellingson
      American Journal of Neuroradiology August 2016, 37 (8) 1440-1446; DOI: https://doi.org/10.3174/ajnr.A4759

      The authors' hypothesis is that incorporating bidirectional contrast agent transport into the DSC MR imaging signal model will improve rCBV estimates in brain tumors. A unidirectional contrast agent extravasation model (Boxerman-Weisskoff) was compared with a bidirectional contrast agent exchange model. For both models, they compared the goodness of fit with the parent leakage-contaminated relaxation rate curves and the difference between modeled interstitial relaxation rate curves and dynamic contrast-enhanced MR imaging in 21 patients with glioblastoma. The authors conclude that the bidirectional model more accurately corrects for the T1 or T2* enhancement arising from contrast agent extravasation due to blood-brain barrier disruption in high-grade gliomas by incorporating interstitial washout rates into the DSC MR imaging relaxation rate model.

  2. Lanzino, G.

    1. Adult Brain
      Neurovascular Manifestations of Hereditary Hemorrhagic Telangiectasia: A Consecutive Series of 376 Patients during 15 Years
      W. Brinjikji, V.N. Iyer, V. Yamaki, G. Lanzino, H.J. Cloft, K.R. Thielen, K.L. Swanson and C.P. Wood
      American Journal of Neuroradiology August 2016, 37 (8) 1479-1486; DOI: https://doi.org/10.3174/ajnr.A4762

  3. Lee, L.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Cortical Perfusion Alteration in Normal-Appearing Gray Matter Is Most Sensitive to Disease Progression in Relapsing-Remitting Multiple Sclerosis
      S.-P. Hojjat, M. Kincal, R. Vitorino, C.G. Cantrell, A. Feinstein, L. Zhang, L. Lee, P. O'Connor, T.J. Carroll and R.I. Aviv
      American Journal of Neuroradiology August 2016, 37 (8) 1454-1461; DOI: https://doi.org/10.3174/ajnr.A4737

      Bookend perfusion was used to quantify parameters in normal-appearing and lesional tissue at different relapsing-remitting MS stages in 39 patients and 19 age-matched healthy controls. Perfusion parameters such as CBF, CBV, and MTT were compared along with cognitive performance. White matter lesion but not cortical lesion perfusion was significantly reduced in cognitively impaired patients with relapsing-remitting MS versus unimpaired patients with relapsing-remitting MS. Perfusion reduction with disease progression was greater in normal-appearing gray matter and normal-appearing white matter compared with cortical lesions and white matter lesions. The authors conclude that the greatest changes are present within NAGM and NAWM, necessitating absolute rather than relative lesion perfusion measurement.

  4. Lee, S.-K.

    1. Pediatric Neuroimaging
      Reduction of Oxygen-Induced CSF Hyperintensity on FLAIR MR Images in Sedated Children: Usefulness of Magnetization-Prepared FLAIR Imaging
      H.-K. Jeong, S.W. Oh, J. Kim, S.-K. Lee and S.J. Ahn
      American Journal of Neuroradiology August 2016, 37 (8) 1549-1555; DOI: https://doi.org/10.3174/ajnr.A4723

  5. Lequin, M.H.

    1. Pediatric Neuroimaging
      A New Ultrasound Marker for Bedside Monitoring of Preterm Brain Growth
      J.A. Roelants, I.V. Koning, M.M.A. Raets, S.P. Willemsen, M.H. Lequin, R.P.M. Steegers-Theunissen, I.K.M. Reiss, M.J. Vermeulen, P. Govaert and J. Dudink
      American Journal of Neuroradiology August 2016, 37 (8) 1516-1522; DOI: https://doi.org/10.3174/ajnr.A4731

  6. Leu, K.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Improved Leakage Correction for Single-Echo Dynamic Susceptibility Contrast Perfusion MRI Estimates of Relative Cerebral Blood Volume in High-Grade Gliomas by Accounting for Bidirectional Contrast Agent Exchange
      K. Leu, J.L. Boxerman, T.F. Cloughesy, A. Lai, P.L. Nghiemphu, L.M. Liau, W.B. Pope and B.M. Ellingson
      American Journal of Neuroradiology August 2016, 37 (8) 1440-1446; DOI: https://doi.org/10.3174/ajnr.A4759

      The authors' hypothesis is that incorporating bidirectional contrast agent transport into the DSC MR imaging signal model will improve rCBV estimates in brain tumors. A unidirectional contrast agent extravasation model (Boxerman-Weisskoff) was compared with a bidirectional contrast agent exchange model. For both models, they compared the goodness of fit with the parent leakage-contaminated relaxation rate curves and the difference between modeled interstitial relaxation rate curves and dynamic contrast-enhanced MR imaging in 21 patients with glioblastoma. The authors conclude that the bidirectional model more accurately corrects for the T1 or T2* enhancement arising from contrast agent extravasation due to blood-brain barrier disruption in high-grade gliomas by incorporating interstitial washout rates into the DSC MR imaging relaxation rate model.

  7. Li, P.-A.

    1. Adult Brain
      Geometric Parameter Analysis of Ruptured and Unruptured Aneurysms in Patients with Symmetric Bilateral Intracranial Aneurysms: A Multicenter CT Angiography Study
      Z.-Q. Huang, Z.-H. Meng, Z.-J. Hou, S.-Q. Huang, J.-N. Chen, H. Yu, L.-J. Feng, Q.-J. Wang, P.-A. Li and Z.-B. Wen
      American Journal of Neuroradiology August 2016, 37 (8) 1413-1417; DOI: https://doi.org/10.3174/ajnr.A4764

  8. Li, X.

    1. Adult Brain
      Open Access
      Lesion Heterogeneity on High-Field Susceptibility MRI Is Associated with Multiple Sclerosis Severity
      D.M. Harrison, X. Li, H. Liu, C.K. Jones, B. Caffo, P.A. Calabresi and P. van Zijl
      American Journal of Neuroradiology August 2016, 37 (8) 1447-1453; DOI: https://doi.org/10.3174/ajnr.A4726

  9. Liau, L.M.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Improved Leakage Correction for Single-Echo Dynamic Susceptibility Contrast Perfusion MRI Estimates of Relative Cerebral Blood Volume in High-Grade Gliomas by Accounting for Bidirectional Contrast Agent Exchange
      K. Leu, J.L. Boxerman, T.F. Cloughesy, A. Lai, P.L. Nghiemphu, L.M. Liau, W.B. Pope and B.M. Ellingson
      American Journal of Neuroradiology August 2016, 37 (8) 1440-1446; DOI: https://doi.org/10.3174/ajnr.A4759

      The authors' hypothesis is that incorporating bidirectional contrast agent transport into the DSC MR imaging signal model will improve rCBV estimates in brain tumors. A unidirectional contrast agent extravasation model (Boxerman-Weisskoff) was compared with a bidirectional contrast agent exchange model. For both models, they compared the goodness of fit with the parent leakage-contaminated relaxation rate curves and the difference between modeled interstitial relaxation rate curves and dynamic contrast-enhanced MR imaging in 21 patients with glioblastoma. The authors conclude that the bidirectional model more accurately corrects for the T1 or T2* enhancement arising from contrast agent extravasation due to blood-brain barrier disruption in high-grade gliomas by incorporating interstitial washout rates into the DSC MR imaging relaxation rate model.

  10. Lindemeyer, J.

    1. Adult Brain
      MRI Appearance of Intracerebral Iodinated Contrast Agents: Is It Possible to Distinguish Extravasated Contrast Agent from Hemorrhage?
      O. Nikoubashman, F. Jablawi, S. Dekeyzer, A.M. Oros-Peusquens, Z. Abbas, J. Lindemeyer, A.E. Othman, N.J. Shah and M. Wiesmann
      American Journal of Neuroradiology August 2016, 37 (8) 1418-1421; DOI: https://doi.org/10.3174/ajnr.A4755
« Previous (Pages : 1 2 ... 2) Next »
Back to top

In this issue

Advertisement
Advertisement