Cardiac MRI   Free-breathing Cardiorespiratory Synchronized Cine MRI for Assessment of Left and Right Ventricular Volume and Function in Sedated Children and Adolescents with Impaired Breath-holding Capacity   A free-breathing cardiorespiratory synchronized cine sequence acquires the complete cardiac cycle with adequate spatial, contrast, and temporal resolutions for evaluating ventricular morphology, volume, and function with image quality equivalent to that of the standard of reference breath-hold sequence.    Amol S. Pednekar, Siddharth Jadhav, Cory Noel, Prakash Masand