In 2013, a comparison of activity measurements of 99m Tc using the Transfer Instrument of the International Reference System (SIRTI) took place at the Institutul National de Cercetare Dezvoltare in Fizica si Inginerie Nucleara – "Horia Hulubei" (IFIN-HH, Romania). Ampoules containing about 21 kBq and 40 kBq of a 99m Tc solution were measured in the SIRTI for, respectively, one and three half-li...

1. Two different suspensions of radioactive particles, 99Tcm-labelled microspheres and 59Fe-labelled resin particles, were injected into the rat central circulation in order to study the distribution of blood flow to the skeleton. 2. Measurements of particle uptake showed that the mean proportion of cardiac output flowing to the skeleton was 3-1%, a figure much lower than the valve of 27% found...

PURPOSE To investigate the clinical value of (99)Tc(m)-MDP SPECT for the diagnosis of unilateral condylar hyperplasia (UCH). METHODS One hundred forty-nine patients who underwent mandibular (99)Tc(m)-MDP SPECT between January 2009 and December 2012 were studied, including 105 cases that were clinically suspected of UCH and 44 comparable cases without UCH as a control group. RESULTS Increase...