A Levelset Based Method for Segmenting the Heart in 3D+T Gated SPECT Images

Keywords Levelset methods were introduced in medical images segmentation by Malladi et al in 1995. In this paper, we propose several improvements of the original method to speed up the algorithm convergence and to improve the quality of the segmentation in the case of cardiac gated SPECT images. We studied several evolution criterions, taking into account the dynamic property of heart image sequences. For each step of the segmentation algorithm, we have compared different solutions in order to both reduce time and improve quality. We have developed a modular segmentation tool with 3D+T visualization capabilities to experiment the proposed solutions and tune the algorithm parameters. We show segmentation results on both simulated and real SPECT images. Segmentation, PDE, levelsets, gated TEMP cardiac sequences. 1 Motivations Les maladies cardio-vasculaires constituent la première cause de mortalité dans les pays industrialisés. L’imagerie fonctionnelle cardiaque telle que l’imag...

• Type: Conference
• Year: 2003
• Where: FIMH
• Authors: Arnaud Charnoz, Diane Lingrand, Johan Montagnat
• Keywords: FIMH 2003