Academic Radiology
Volume 13, Issue 1 , Pages 73-76 , January 2006

Fractional Anisotropy is Higher in Heschl’s Gyrus Than in Superior Temporal Gyrus in Normal Subjects1

Received 15 June 2005 ,Accepted 11 August 2005.

References 

  1. Basser PJ , Pierpaoli C . Microstructural and physiological features of tissues elucidated by quantitative-diffusion-tensor MRI . J Magn Reson B . 1996;111:209–219
  2. Conturo TE , Lori NF , Cull TS , et al.   Tracking neuronal fiber pathways in the living human brain . Proc Natl Acad Sci U S A . 1999;96:10422–10427
  3. Stieltjes B , Kaufmann WE , van Zijl PC , et al.   Diffusion tensor imaging and axonal tracking in the human brainstem . Neuroimage . 2001;14:723–735
  4. Melhem ER , Mori S , Mukundan G , et al.   Diffusion tensor MR imaging of the brain and white matter tractography . AJR Am J Roentgenol . 2002;178:3–16
  5. Mamata H , Mamata Y , Westin CF , et al.   High-resolution line scan diffusion tensor MR imaging of white matter fiber tract anatomy . AJNR Am J Neuroradiol . 2002;23:67–75
  6. Bammer R , Acar B , Moseley ME . In vivo MR tractography using diffusion imaging . Eur J Radiol . 2003;45:223–234
  7. Yamada K , Kizu O , Mori S , et al.   Brain fiber tracking with clinically feasible diffusion-tensor MR imaging (initial experience) . Radiology . 2003;227:295–301
  8. Pfefferbaum A , Sullivan EV . Increased brain white matter diffusivity in normal adult aging (relationship to anisotropy and partial voluming) . Magn Reson Med . 2003;49:953–961
  9. Hagmann P , Thiran JP , Jonasson L , et al.   DTI mapping of human brain connectivity (statistical fibre tracking and virtual dissection) . Neuroimage . 2003;19:545–554
  10. Ciccarelli O , Toosy AT , Parker GJ , et al.   Diffusion tractography based group mapping of major white-matter pathways in the human brain . Neuroimage . 2003;19:1545–1555
  11. Stejskal EO , Tanner JE . Spin diffusion measurements (spin echoes in the presence of a time-dependent field gradient) . J Chem Phys . 1965;42:288–292
  12. Kier EL , Staib LH , Davis LM , et al.   MR imaging of the temporal stem (anatomic dissection tractography of the uncinate fasciculus, inferior occipitofrontal fasciculus, and Meyer’s loop of the optic radiation) . AJNR Am J Neuroradiol . 2004;25:677–691
  13. Brodal A , Onsen KK . The auditory system . In:  Brodal A editors. Neurological anatomy. In relation to clinical medicine . 3rd ed. New York, NY: Oxford University Press; 1981;p. 602–639
  14. Rauschecker JP . Cortical processing of complex sounds . Curr Opin Neurobiol . 1998;8:516–521
  15. Nieuwenhuys R , Voogd J , van Huijzen C . The auditory system . In: The human central nervous system. A synopsis and atlas . Berlin, Germany: Springer-Verlag; 1988;p. 172–179
  16. Kretschmann HJ , Weinrich W . Auditory systems . In: Neurofunctional systems . New York, NY: Thieme; 1998;p. 54–63
  17. Yoshiura T , Higano S , Rubio A , et al.   Heschl and superior temporal gyri (low signal intensity of the cortex on T2-weighted MR images of the normal brain) . Radiology . 2000;214:217–221
  18. Hickok G , Poeppel D . Towards a functional neuroanatomy of speech perception . Trends Cogn Sci . 2000;4:131–138
  19. Yousry TA , Fesl G , Büttner A , et al.   Heschl’s gyrus (anatomic description and method of identification on magnetic resonance imaging) . Int J Neuroradiol . 1997;3:2–12
  20. Schlaepfer TE , Harris GJ , Tien AY , et al.   Structural differences in the cerebral cortex of healthy female and male subjects (a magnetic resonance imaging study) . Psychiatry Res . 1995;61:129–135
  21. Cowell PE , Turetsky BI , Gur RC , et al.   Sex differences in aging of the human frontal and temporal lobes . J Neurosci . 1994;14:4748–4755

 We thank Tie-Qiang Li, Ph.D., for providing diffusion tensor imaging pulse sequence in this study.

PII: S1076-6332(05)00677-X

doi: 10.1016/j.acra.2005.08.017

Academic Radiology
Volume 13, Issue 1 , Pages 73-76 , January 2006

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