TABLE II:

Average testing time required by our method (SCQ), the baseline method (DM) and the state-of-the-art methods (SDM, CSMR, AND DL) for T1 and T2 quantification for an axial slice with a matrix size of 256 × 256. Units: second (S) and hour (H). Here, ar = 4.

DM	SDM	CSMR	DL	SCQ (ours)
26.2s	14.2s	∼2h	18.0s	2.3s

Experiments were performed on an iMac (2017) desktop, with CPU: 4.2 GHz Intel Core i7, and memory: 16 GB 2400 MHz DDR4. DM, SDM, DL, and SCQ were implemented in Python, and CSMR was implemented in Matlab R2017a. Testing time is defined as the time for all computations performed using the reconstructed MRF image series for the quantification of both T1 and T2 maps. Specifically, the testing time of SDM includes both signal compression time and matching time.