Complex sentence: Current real-time MRI achievements are based on radial FLASH MRI techniques and already allow for movies of the human heart with image update frequencies of up to 20 frames per second: during free breathing, without ECG synchronization, and without motion artifacts.
Split into simpler sentences: Current real-time MRI achievements are based on radial FLASH MRI techniques and already allow for movies of the human heart with image update frequencies of up to 20 frames per second. Such movies may be recorded during free breathing, without ECG synchronization, and without motion artifacts.