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Fig. 3 | BMC Medical Imaging

Fig. 3

From: Time-resolved tracking of the atrioventricular plane displacement in Cardiovascular Magnetic Resonance (CMR) images

Fig. 3

Flow chart of automatic tracking algorithm. The automatic tracking algorithm for the atrioventricular plane displacement (AVPD) tracks 8 input points that are provided as user input throughout the cardiac cycle. The algorithm consists of four processing blocks; definition of the AV-plane, tracking with a priori position prediction, curve shape reconstruction, and calculation of AV-plane displacement and velocity. Processing block 2, in which forward and backward tracking is conducted and merged, and processing block 3, where the curve shape reconstruction is performed, are repeated once for each input point, 8 times. Block 4 is performed once at the end of the algorithm

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