Performance Evaluation of Grid-Enabled Registration Algorithms Using Bronze-Standards

Evaluating registration algorithms is difficult due to the lack of gold standard in most clinical procedures. The bronze standard is a real-data based statistical method providing an alternative registration reference through a computationally intensive image database registration procedure. We propose in this paper an efficient implementation of this method through a grid-interfaced workflow enactor enabling the concurrent processing of hundreds of image registrations in a couple of hours only. The performances of two different grid infrastructures were compared. We computed the accuracy of 4 different rigid registration algorithms on longitudinal MRI images of brain tumors. Results showed an average subvoxel accuracy of 0.4 mm and 0.15 degrees in rotation. 1 Performance evaluation using bronze standards The accuracy performances of registration algorithms are critical for many clinical procedures but quantifying them is difficult due to the lack of gold standard in most clinical appl...

• Type: Conference
• Year: 2006
• Where: MICCAI
• Authors: Tristan Glatard, Xavier Pennec, Johan Montagnat
• Keywords: Medical Imaging, MICCAI 2006, Multimodal Mr Registration, Registration Algorithms, Rigid Registration Algorithms