Summary: Proffered Papers Thursday, September 29 $133
with MI in the image domain yielding a mean of 5 px (SD 3,
outlier percentage 16 %).
Conclusion: We have obtained stable and reliable automatic
registration using a wavelet approach. We expect further
improvement of automatic-registration performance by
employing alternative mother wavelets and/or thresholding in
the wavelet domain. Rotation-invariant registration is
currently implemented to improve performance.
Requirements for the use of an atlas-based automatic
segmentation for delineation of Organs at risk (OAR)
in conformal radiotherapy (CRT): quality assurance
(QA) and preliminary results for 22 adult patients with
primary brain tumors.
A. Isambert I, F. Dherrnain2, A. Beaudre1, O. Commovick4, J.
Diaz5, P. Bondiau6, J. Bourhis2
iInstitut Gustave Roussy, Department of Physics, Villejuif,
2Institut Gustave Roussy, Department of Radiotherapy and