The conventional radionuclide renal examination using a 1020-mCi dose of technetium-99m t mTc) DTPA (Pentetate), conducted over a 30-60-min duration, does not accommodate the Gates method for GFR determination. Simple modifications to the Gates technique will, however, permit a GFR determination to be made without sacrificing the components of a complete conventional renal examination, and will...

PURPOSE The aim of the current attempt was quantitative investigation of the electromagnetic interference (EMI) of a mobile phone with the function of a SPECT gamma camera during data acquisition. MATERIALS AND METHODS We tested the effect of a mobile phone, in both ringing mode and standby mode, on one SPECT gamma camera during scanning a cylindrical phantom containing 5.4 mCi (99m)Tc. The e...

An optical guide, which is a light guide located between NaI(Tl) scintillation-crystal and array of photo-multiplier tubes (PMTs) in the gamma camera detector system, is an essential component to deliver the spatial information recorded in scintillator to the PMTs. Without the optical guide, the spatial information within the range of a single PMT could not be obtained. For the design of the op...

Localization of radioactive hot spots is nowadays a major issue for Homeland Security to avoid illegal transit of radiological material or manage post-accidental events. In this context, CEA LIST Institute designed a new gamma camera, called GAMPIX, based on the association of a semiconductor detector with a coded mask. GAMPIX is currently under industrialization by AREVA CANBERRA under the nam...

UNLABELLED The purpose of this study was to evaluate a small semiconductor-based gamma camera that may have applications in scintimammography. METHODS A small cadmium zinc telluride (CZT) detector was evaluated. The detector had a field of view of 20 x 20 cm with detector elements of 2.5 x 2.5 mm in size. Both short-bore (35 mm) and long-bore (50 mm) collimators, matched to the geometry of th...