Bone Surface Extraction

One of the CT volumes is referenced as the neutral position. This volume is manually segmented via the Analyze software package in order to extract the bone surfaces. These bone surfaces are represented by discrete points and are used for the automated registration of the remaining positions.

A Technical Note

The list of points that define contours for each bone component in each slice are stored as files with the extension ".stack". In at least one example, from a subject's root directory the .stack files are in the subdirectory:

<subject-data-root>/original_stacks/S15L/*.stack
<subject-data-root>/original_stacks/S15R/*.stack

These files are only defined for pose/scan #15 which is defined to be and referred to as the neutral position.

For example,

original_stacks/S15L:
cap15L.stack
ham15L.stack
lun15L.stack
mc115L.stack
mc215L.stack
mc315L.stack
mc415L.stack
mc515L.stack
pis15L.stack
rad15L.stack
sca15L.stack
tpd15L.stack
tpm15L.stack
trq15L.stack
uln15L.stack

original_stacks/S15R:
cap15R.stack
ham15R.stack
lun15R.stack
mc115R.stack
mc215R.stack
mc315R.stack
mc415R.stack
mc515R.stack
pis15R.stack
rad15R.stack
sca15R.stack
tpd15R.stack
tpm15R.stack
trq15R.stack
uln15R.stack