Simultaneous visualization of sagittal, coronal, and axial planes during production of loo-lee-la-za-na-za sounds using constrained reconstruction at a time resolution of 36 ms, and a spatial resolution of 2.4 mm2. Note movements such as tongue grooving, and pharyngeal airway shaping in two dimensions can be best visualized in the coronal and axial planes, and add complementary information to the sagittal view.