Retrospective CINE MRI of the mouse heart
Heijman E, de Graaf W, Diekmann C, Nauerth A, Nicolay K, Strijkers G
Eindhoven University of Technology
We present a retrospective CINE FLASH sequence for mouse cardiac MRI, which uses a slice refocusing signal to derive heart as well as respiratory cycles retrospectively. The method was compared to traditional triggered and gated CINE FLASH. The retrospective CINE MRI sequence showed an excellent steady state signal behavior in the myocardial wall compared to the traditional methods but had a lower SNR. The measured heart and respiration rates showed an excellent match with the values extracted from the retrospective reconstruction program. The CINE FLASH images generated by the retrospective method were essentially free of motion artifacts.