Multiplanar reformation of a 3D MR angiography image set of the spinal cord demonstrating the visualization of the AKA (arrow) and the ASA (arrowhead;

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Multiplanar reformation of a 3D MR angiography image set of the spinal cord demonstrating the visualization of the AKA (arrow) and the ASA (arrowhead; A–C). Multiplanar reformation of a 3D MR angiography image set of the spinal cord demonstrating the visualization of the AKA (arrow) and the ASA (arrowhead; A–C). A, Two bright dots on the axial section represent the cross-sections through the AKA and the ASA. B, The line between these 2 dots is the new orientation of the multiplanar reformation. C, The oblique coronal reformation section shows the spinal cord vessels along the anterior surface of the cord. D–F, Curved multiplanar reformation of the same 3D image set shows a caudally more extended part of the ASA. On the sagittal section, the course of the ASA can be identified on the anterior surface of the cord (A) and then followed to define the curved multiplanar reformation (B). The resulting slightly curved plane represents an image that displays the AKA and a larger part of the ASA (F) compared with C. W.H. Backes, and R.J. Nijenhuis AJNR Am J Neuroradiol 2008;29:619-631 ©2008 by American Society of Neuroradiology