4D Phase-Contrast Magnetic Resonance CardioAngiography (4D PC-MRCA) Creation from 4D Flow MRI

MR angiography (MRA) and phase-contrast MRA (PC-MRA) generation methods that facilitate blood flow assessment in the heart and thoracic vessels typically lead to the compression of data from all the timeframes of a cardiac cycle into one 2D or 3D image. This process, however, results in information loss from individual timeframes. We propose a new method for PC-MRA data generation from 4D flow MRI, which uses registration between the timeframes of the 4D acquisition to create a “four-dimensional PC-MR CardioAngiography (4D PC-MRCA)” that retains vascular and cardiac blood flow information over the entire cardiac cycle.