To improve the time efficiency for cortical bone T1 measurement on clinical scanners, we proposed a new method which fits the datasets of 3D ultrashort echo time actual flip angle imaging (UTE-AFI) and UTE with a single TR (UTE-STR) simultaneously (UTE-AFI-STR). The results show that the UTE-AFI-STR can measure the T1 of cortical bone accurately and more efficiently than the UTE-AFI-VTR method.
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