Figure 1
From: Left atrial and left atrial appendage 4D blood flow dynamics in atrial fibrillation
4D flow MRI (A) and derived 3D PC angiogram (PC-MRA) in a male AF patient (EF = 57%, heart rate = 46 bpm, CHA 2 DS 2 -VASc score = 1, in sinus rhythm during the MRI scan). 3D segmentation of the LA and LAA was used to mask the measured time-resolved 3-directional blood flow velocities inside the LA and LAA boundaries for the calculation of LA and LAA stasis, peak velocity and time-to-peak (TTP) maps. (B)AAo/Dao: ascending/descending aorta, RA: right atrium, LV: left ventricle, PA: pulmonary artery.