Alterations of the Thoracic Spine in Marfan's Syndrome
Bernd F. Daeubler1,
Thierry Carrel2,
Tomasz Kujawski2,
Aurelia Schnyder2,
Pia Zurmuehle2,
Peter Vock1 and
Suzanne E. Anderson1
1 Department of Radiology, University Hospital, Inselspital, Freiburgstrasse 20,
Berne CH-3010, Switzerland.
2 Clinic for Cardiovascular Surgery, University Hospital, Inselspital, Berne,
Switzerland.

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Fig. 1 Process of measuring laminar thickness. LAM left = left lamina, LAM
right = right lamina.
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Fig. 2 Process of measuring foraminal width. FOR left = left neural
foramen, FOR right = right neural foramen.
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Fig. 3A Measurement and calculation of vertebral scalloping and of dural sac
ratios in 40-year-old man. Process of measuring and calculating vertebral
scalloping. Vertebral scalloping value = (d1 + d3):2 - d2. d = diameter.
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Fig. 3B Measurement and calculation of vertebral scalloping and of dural sac
ratios in 40-year-old man. Measurement of dural sac diameter (DSD) and
vertebral body diameter (VBD) for calculating dural sac ratios at midcorpus
level. This measurement was obtained for each vertebra from T2 through
T12.
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Fig. 3C Measurement and calculation of vertebral scalloping and of dural sac
ratios in 40-year-old man. Measurement of dural sac diameter (DSD) and
vertebral body diameter (VBD) for calculating dural sac ratios at lower
endplate level. This measurement was obtained for each vertebra from T2
through T12.
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Copyright © 2006 by the American Roentgen Ray Society.