David Moratal1, Lei Hou Hamilton2, Senthil Ramamurthy3, Marijn Eduard Brummer3
1Universitat Politcnica de Valncia, Valencia, Spain; 2Georgia Institute of Technology, Atlanta, GA, United States; 3Emory University, Atlanta, GA, United States
The value of a standardized simulation phantom to test and compare reconstruction methods for cardiac imaging has become evident during last years. In this work, a 4D analytical phantom in the Fourier domain is proposed, aimed to serve as a flexible, objective, standardized benchmark for evaluation and comparison of different image reconstruction techniques in dynamic 3D MRI. It can be used to compare different non-Cartesian encoding schemes and reconstruction methods, as well as different cardiac MRI acceleration strategies. The k-space signal for the 4D phantom can be evaluated analytically and sampled accordingly to any chosen k-space trajectory or encoding scheme.