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Improved Turnaround Times | Median time to first decision: 12 days

Research ArticleSpine Imaging and Spine Image-Guided Interventions

Dilated Vein of the Filum Terminale on MRI: A Marker for Deep Lumbar and Sacral Dural and Epidural Arteriovenous Fistulas

W. Brinjikji, C.A. Hilditch, J.M. Morris, A.A. Dmytriw, H. Cloft, V. Mendes Pereira, G. Lanzino and T. Krings
American Journal of Neuroradiology September 2018, DOI: https://doi.org/10.3174/ajnr.A5784
W. Brinjikji
aFrom the Departments of Radiology (W.B., J.M.M., H.C., G.L.)
bNeurosurgery (W.B., G.L.), Mayo Clinic, Rochester, Minnesota
cJoint Department of Medical Imaging (W.B., C.A.H., A.A.D., V.M.P., T.K.), Toronto Western Hospital, Toronto, Ontario, Canada.
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C.A. Hilditch
cJoint Department of Medical Imaging (W.B., C.A.H., A.A.D., V.M.P., T.K.), Toronto Western Hospital, Toronto, Ontario, Canada.
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J.M. Morris
aFrom the Departments of Radiology (W.B., J.M.M., H.C., G.L.)
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A.A. Dmytriw
cJoint Department of Medical Imaging (W.B., C.A.H., A.A.D., V.M.P., T.K.), Toronto Western Hospital, Toronto, Ontario, Canada.
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H. Cloft
aFrom the Departments of Radiology (W.B., J.M.M., H.C., G.L.)
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V. Mendes Pereira
cJoint Department of Medical Imaging (W.B., C.A.H., A.A.D., V.M.P., T.K.), Toronto Western Hospital, Toronto, Ontario, Canada.
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G. Lanzino
aFrom the Departments of Radiology (W.B., J.M.M., H.C., G.L.)
bNeurosurgery (W.B., G.L.), Mayo Clinic, Rochester, Minnesota
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T. Krings
cJoint Department of Medical Imaging (W.B., C.A.H., A.A.D., V.M.P., T.K.), Toronto Western Hospital, Toronto, Ontario, Canada.
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    Fig 1.

    A 63-year-old woman with a sacral dural arteriovenous fistula at S1. A, Sagittal T2-weighted MR imaging shows a dilated vein of the filum terminale (white arrow). B, Contrast-enhanced T1-weighted MR imaging again demonstrates the dilated vein of the filum terminale (white arrow). C, Rotational digital subtraction angiogram reformatted in the coronal plane following injection into the right internal iliac artery demonstrates a fistula at S1 (arrowhead), with a dilated vein of the filum terminale.

  • Fig 2.
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    Fig 2.

    A 75-year-old man with a sacral dural arteriovenous fistula at S1. A, Sagittal T2-weighted MR imaging shows a dilated vein of the filum terminale (white arrow). B and C, Contrast-enhanced MRIs demonstrate marked dilation of the vein of the filum terminale (white arrow). D, Conventional angiogram in the anteroposterior plane following injection into the right internal iliac artery demonstrates a fistula at S1 with a dilated vein of the filum terminale (black arrow).

  • Fig 3.
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    Fig 3.

    An 80-year-old man with a sacral dural arteriovenous fistula at S1. A, Sagittal T2-weighted MR imaging shows a dilated vein of the filum terminale (white arrows). B, Contrast-enhanced T1-weighted MR imaging again demonstrates the dilated vein of the filum terminale (white arrows). C, Conventional angiogram in the anteroposterior plane following injection into the right internal iliac artery demonstrates a fistula at S1 with a dilated vein of the filum terminale (black arrows).

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Dilated Vein of the Filum Terminale on MRI: A Marker for Deep Lumbar and Sacral Dural and Epidural Arteriovenous Fistulas
W. Brinjikji, C.A. Hilditch, J.M. Morris, A.A. Dmytriw, H. Cloft, V. Mendes Pereira, G. Lanzino, T. Krings
American Journal of Neuroradiology Sep 2018, DOI: 10.3174/ajnr.A5784
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W. Brinjikji, C.A. Hilditch, J.M. Morris, A.A. Dmytriw, H. Cloft, V. Mendes Pereira, G. Lanzino, T. Krings
Dilated Vein of the Filum Terminale on MRI: A Marker for Deep Lumbar and Sacral Dural and Epidural Arteriovenous Fistulas
American Journal of Neuroradiology Sep 2018, DOI: 10.3174/ajnr.A5784

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