Geometric data collection in medical imaging
Keywords:
medical images, three dimensional reconstruction, anatomical simulation, dicom, voxel, Hounsfi eld units.Abstract
Introduction.
The different, proprietary or GPU, three dimensional structural
generation software from two dimensions medical images, has results
which are based on each developer team’s particular considerations,
- e., different software applications can show different results while
working from the same data source. This sows the seeds of doubts
about the reliability of the results, being necessary a non-modifi ed
data interpretation.
Material and Methods.
In order to achieve the correct interpretation of the data contained in
medical image techniques, a low level data access has been carried
out, comparing the obtained values with their graphic representation
and getting, this way, a three dimensional structure which fi ts the
original information without being post-processed.
Results.
Obtained results made possible to know the accurate three dimensional
position of the anatomic landmarks independently of image
acquisition stage’s intrinsic factors. In this way, the accurate anatomical
reconstruction and simulation of patient’s structures is possible.
Conclusions.
X, Y, Z position of each point, acquisition time, volume of point,
absorption coeffi cient and scale are critical data for a reliable
geometric reconstruction. A computer application oriented to be used
by engineers should interpret with high reliability values present in
DICOM attributes prevailing accuracy over the functionality of the
software.