AJDRAJNR - American Journal of Neuroradiology

Published ahead of print on December 26, 2008
doi: 10.3174/ajnr.A1401
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Characterizing the Mesencephalon Using Susceptibility-Weighted Imaging

E.S. Manovaa, C.A. Habiba,b, A.S. Boikovb, M. Ayaza,b, A. Khana, W.M. Kirschd, D.K. Kidoc and E.M. Haackea,b,c

a Department of Biomedical Engineering, Wayne State University, Detroit, Mich
b The MRI Institute for Biomedical Research, Detroit, Mich
c Department of Radiology, Loma Linda University, Loma Linda, Calif
d Department of Neurosurgery, Loma Linda University, Loma Linda, Calif


Figure 1
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  		Fig 1. The midbrain as a region-of-interest on 4T SWI magnitude images shown in sagittal and coronal sections, with and without section locators. Arrows 1, 2, and 3 point to the red nucleus, the subthalamic nucleus, and the substantia nigra, respectively.


Figure 2
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  		Fig 2. A comparison of 1 region of the mesencephalon for different sequences and field strengths with Duvernoy's stained cadaver brain results.16 A, T1 at 1.5T; B, T1 at 4T; C, T2 at 1.5T; D, T2 at 4T; E, Duvernoy's india ink-stained image; F, SWI magnitude at 1.5T; G, SWI HP-filtered phase at 1.5T; H, SWI magnitude at 4T; I, SWI HP-filtered phase at 4T; J, Duvernoy's india ink-stained image. Images E and J reprinted with permission from Duvernoy HM. Human Brain Stem Vessels. 2nd ed. Berlin, Germany: Springer-Verlag; 1999;206–13.


Figure 3
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  		Fig 3. A comparison of adjacent sections in SWI magnitude and HP-filtered-phase images at 1.5T and 4T with Duvernoy's india ink-stained results.16 A, Magnitude SWI at 1.5T; B, HP-filtered phase at 1.5T; C, Magnitude SWI at 4T; D, HP-filtered phase at 4T; E, Duvernoy's results. Only 3 unique images from Duvernoy are shown here because his section thickness is 3 mm. The third and fourth images from the top are identical. Images in column E reprinted with permission from Duvernoy HM. Human Brain Stem Vessels. 2nd ed. Berlin, Germany: Springer-Verlag; 1999;206–13.


Figure 4
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  		Fig 4. A comparison of SWI HP-filtered-phase images (B and D) with Duvernoy's india ink–stained results (A and C).16 Anterior (A and B) and posterior (C and D) mesencephalic structures are indicated. Arrow 1 indicates the crus cerebri; 2a, substantia nigra, pars reticulata; 2b, substantia nigra, pars compacta; 3, capsule of the red nucleus; 4a, red nucleus (vascularized region); 4b, red nucleus (nonvascularized region); 5, fascicula nigrale; 6, medial geniculate body; 7, superior colliculus; 8, intermediate area. Images A and C reprinted with permission from Duvernoy HM. Human Brain Stem Vessels. 2nd ed. Berlin, Germany: Springer-Verlag; 1999;206–13.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X