VANCOUVER, British Columbia, Oct. 25, 2007 (PRIME NEWSWIRE) -- Zecotek Medical Systems Inc. (TSX-V:ZMS) (Frankfurt:W1I) today announced the Paul Scherrer Institute based in Switzerland has purchased an order of Zecotek's patented Lutetium Fine Silicate (LFS) scintillation crystals for trials in its next-generation Positron Emission Tomography (PET) medical imaging program. The Paul Scherrer Institute PET program is focused on advancing improvements in sensitivity, spatial resolution and image quality in PET scanners, based on the understanding that advances in PET are driven largely by progress in instrumentation, in particular the performance of scintillation materials, photo-detectors and read-out electronics. Higher resolution PET scanners would also widen PET's application in brain function analysis and diagnosis.