The goal of this work was to test whether an antibody-based agent approved for use as a single-photon-emitting imaging agent when radiolabeled with technetium-99m could be labeled comparably with a positron-emitting nuclide, technetium-94m. "Instant kits" containing lyophilized NP-4 antibody Fab' fragment of an anticarcinoembryonic antigen IgG (CEA-Scan) from the same manufactured lot were reco...

the production and application of pet tracers has been a unique step in the progress of nuclear medicine in last two decades. the most important pet tracers include f-18, c-11 and n-13 radioisotopes and many nuclear medicine centers throughout the globe are using them. however some new tracers are under their way to the mass administration, currently being in the clinical trials or preliminary ...

The high-energy 14.7 MeV protons generated from the D-3 He fusion reaction can be used to produce medical radioisotopes. Steady-state D-3 He operation is possible using Inertial Electrostatic Confinement (IEC); however, the location of the reactions must be known to use them effectively for isotope production. In the University of Wisconsin IEC device, it has been found that as much as 2/3 of t...

The increasing significance of non-standard positron emission tomography (PET) nuclides in medicine is briefly outlined. The decay data of those radionuclides are generally well known, except for the positron emission intensity (Ibeta+) in a few cases. The recent precise measurements on the Ibeta+ values for (64)Cu, (76)Br, (120)I and (124)I are described. Some general aspects of cyclotron prod...

During the last decade increasingly sophisticated positron emission tomography (PET) scanners have been developed for imaging small laboratory animals. These systems often exhibit performance characteristics, e.g. spatial resolution, substantially better than contemporary human PET scanners and are often the first systems to demonstrate new technologies, e.g. avalanche photodiodebased detector ...

  The production and application of PET tracers has been a unique step in the progress of nuclear medicine in last two decades. The most important PET tracers include F-18, C-11 and N-13 radioisotopes and many nuclear medicine centers throughout the globe are using them. However some new tracers are under their way to the mass administration, currently being in th...

This paper examines the positioning accuracy of a GSM beaconbased location system in a metropolitan environment. We explore five factors effecting positioning accuracy: location algorithm choice, scan set size, simultaneous use of cells from different providers, training and testing on different devices, and calibration data density. We collected a 208-hour, 4350Km driving trace of three differ...

during the 6-m period, 24 patients with acute scrotal pain were referred to the nuclear medicine department of shaheed labbafi-nejad hospital. their age ranged from 9 to 84 (mean 28.8) years. twelve scans were selected for the study. the scans were performed on angiographic and static phases, using tc-pertechnetate. of the above mentioned cases, one had acute testicular torsion (pre and post op...