Which are the most used radionuclides in the pet and in the spect techniques in the world?

The images in nuclear medicine are mainly obtained through the SPECT (single photon emission computed tomography) and the PET (positron‐emission tomography). These procedures have been carried out with various radionuclides. Here, we have evaluated which are the most used radionuclides in the PET and in the SPECT techniques in the world. We identified the radionuclides cited in the s of two important meetings occured in 2000: “The Society of Nuclear Medicine Meeting (SNM)” and the “European Association of Nuclear Medicine Congress (EANM)”. We have determined in each , which radionuclide was used. The most cited radionuclides in the SNM meeting were Tc‐99m (25.38%), F‐18 (18.93%), C‐11 (4.68%), I‐123 (4.57%), In‐111 (3.75%) and Tl‐201 (2.69%) and in the EANM congress were Tc‐99m (33.94%), F‐18 (11.88%), In‐111 (5.65%), I‐123 (5.50%), Tl‐201 (4.22%) and C‐11 (1.98%). The results indicate, that, although, the Tc‐99m is still the most cited radionuclide, there is an important citation of F‐18 in the s presented in these two meetings. We can suggest that the status of the PET procedures is growing in the world.