TY - GEN T1 - Left Ventricle Segmentation in Dynamic 82Rb PET/CT Using Deep Convolutional Neural Networks A1 - Amirian, Mohammadreza A1 - Chevalley, Arthur A1 - Andrearczyk, Vincent A1 - Klein, Ran A1 - DeKemp, Robert A1 - Moulton, Eric A1 - Kamani, Christel H. A1 - Prior, John O. A1 - Jreige, Mario A1 - Depeursinge, Adrien Y1 - 2025 N2 - Precise delineation of the left ventricle (LV) enables advanced analyses of endo-to-epicardium blood perfusion patterns and their gradients in PET, which can support various clinical applications, including coronary microvascular dysfunction. Approaches like simple thresholding or semi-automatic curve fitting often fall short in accurately capturing the LV boundaries in dynamic $^{82}$Rb PET/CT. They also require expert manual input. This study presents a reliable manual, multi-modal LV delineation strategy, and a fully automatic segmentation algorithm using deep convolutional neural networks (CNNs). ER -