Fig. 4From: Simultaneous emission and attenuation reconstruction in time-of-flight PET using a reference objectReconstructed emission images and percentage difference maps of emission images obtained with proposed MLAA reconstruction using one water cylinder filled with reference activity concentration (A0). Results are shown for different CRT values (100, 300, and 540 ps) and different number of coincidences (105, 106, and 107)Back to article page