Cramer-Rao lower bounds for precision in T2* assessment for myocardial iron overload measurements by T2* multi-echo CMR by Tassi Cristina, Natale Luigi, Valeri Gianluca, Milanesi Matteo, Favilli Brunella, Dell'Amico Chiara, Menichetti Luca, Marchi Daniele, Santarelli Maria, Pepe Alessia, Meloni Antonella, Positano Vincenzo, Casini Tommaso, Landini Luigi, Lombardi Massimo