Table 1. Synopsis of scan time duration and temporal resolution used for the single cardiac phase and CINE T2 * mapping protocols.
ME | MS | MB CINE | ME CINE | MS CINE | |
scan duration phantom study | 25s | 49s | 3×81s | 121s | 241s |
scan duration in vivo study | - | 24s | 3×22s | - | - |
acquisition window length | 205ms | 192ms | 36ms | 38ms | 36ms |
The scan duration of MS protocols is doubled versus ME protocols. For in vivo T2 * mapping MS and MB CINE were applied. CINE protocols provided an acquisition window length of about 36 ms, which renders the impact of cardiac motion effects rather low. The acquisition window length is given by the number of k-spaces lines acquired per cardiac cycle times the repetition time.