Accès ouvert
2025
article
OpenAlex
Abarnaa Sivapathasundaram, Agnieszka Buffon, Jérôme Ghidaglia, Yannick Jentreau et autres
Patlak parametric imaging is widely employed for kinetic modeling due to its simplicity and robustness. The time-to-equilibrium (t*), which must be defined to estimate kinetic parameters, is currently set empirically and uniformly across the entire body. In this study, we evaluate the …
fr
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
Abarnaa Sivapathasundaram, Florence Laigle–Donadey, Catherine Horodyckid, Karima Mokhtari et autres
Medulloblastoma is a heterogeneous central nervous system tumor stratified into four molecular subgroups in the revised 2021 WHO classification. Although MRI remains essential for follow-up, distinguishing true recurrence from treatment-related changes can be challenging. PET imaging may provide additional value in this …
fr
(code pays fourni par la source)
2023
article
OpenAlex
Abarnaa Sivapathasundaram, Nicolas Golse, Alina Pascale, Emmanuel Durand et autres
BACKGROUND: In hepatocellular carcinoma (HCC) setting, 18 F-FDG and 18 F-choline PET/CT radiotracers are classically considered surrogates of the degree of differentiation, a strong predictor of disease recurrence after curative treatment. Because the corresponding level of evidence has never been assessed as …
fr
(code pays fourni par la source)