Performance evaluation of an automated image registration algorithm using an integrated kilovoltage imaging and guidance system.

ABSTRACT: Image-guided radiation therapy delivery may be used to assess the position of the tumor and anatomical structures within the body as opposed to relying on external marks. The purpose of this manuscript is to evaluate the performance of the image registration software for automatically detecting and repositioning a 3D offset of a phantom using a kilovoltage onboard imaging system. Verification tests were performed on both a geometric rigid phantom and an anthropomorphic head phantom containing a humanoid skeleton to assess the precision and accuracy of the automated positioning system. From the translation only studies, the average deviation between the detected and known offset was less than 0.75 mm for each of the three principal directions, and the shifts did not show any directional sen

SUBMITTER: Fox T 

PROVIDER: S-EPMC5722475 | biostudies-literature | 2006

REPOSITORIES: biostudies-literature