Andreas Sigfridsson1, Henrik Haraldsson2, Tino Ebbers2, Shinichi Takase1, Hans Knutsson2, Hajime Sakuma1
1Mie University, Tsu, Mie, Japan; 2Linkping University, Linkping, Sweden
In multiphase DENSE MRI, available signal decreases during the cardiac cycle due to excitation and T1-relaxation. Because of this, a widely used method is to vary the flip angle to yield constant SNR during the cardiac cycle. Unfortunately, this may lead to significant sacrifices of SNR in the early cardiac phases.