Institute for Visualization and Interactive Systems
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Figure 4: Dural AV fistula in the area of the lower thoracic
spine: (a) DSA shows
the feeding artery (
) and a perimedullary fistula (
) -- (b) Direct
volume rending of MR-CISS shows optimal correspondence (
) with the
DSA -- (c, d) The Integration of the surrounding anatomy
conveys the relation to
the spinal cord (green) and the bone structures of the vertebral column.
Figure 5: Dural AV fistula in the area of the medulla oblongata:
(a,b) DSA
showing the vascular malformation -- (c-f) Direct volume rendering
leads to an
excellent delineation showing the semi-transparent CSF and the opaque
target
vessels (c), the opaque vessels and the opaque spinal cord (d)
and the relation to the
surrounding anatomy (e, f).
Figure 6: Dural AV fistula in the area of the lumbar spine:
(a) DSA shows a fistula
(
) coming from the right internal iliac artery. -- (b) Volume rendering
of the
fistula and the roots of spinal nerves. (c, d) Lateral and frontal
view of the
malformation in relation to the surounding anatomy.
Figure 7: Dural AV fistula in the area of the thoracic spine:
Comparison of the
complex vessel structure in a DSA projection image (a) and a
corresponding 3D
visualization of a MR-CISS volume (b) including
a lateral (c) and a dorsal
view (d).
C. Rezk-Salama, P. Hastreiter, K. Eberhardt, B. Tomandl,
T. Ertl, "Interactive Direct Volume Rendering of Dural Arteriovenous Fistulae", accepted
for presentation at 2nd Conference on Medical
Image Computing and Compter-Assisted Intervention (MICCAI),
Cambridge, UK, 1999
) and a perimedullary fistula ( 
) -- (b) Direct
) with the
