Figure 1

(Top) Comparison of external recording of respiratory motion (black line) with 3D in vivo motion derived from the ¹H component of the simulataneous ¹⁹F/¹H imaging, Motion in the SI (+) and PR (*) directions track well, with little motion detected in AP (x) direction. (Bottom) Correcting for the motion, images and imporved, especially near the liver and diaphragm (box). Note the ghost artifact of the thoracic aorta is removed in the corrected image.