Accurate identification of the sentinel lymph node (SLN) is an important prognostic factor for melanoma. In a minority of cases drainage to interval nodal basins, such as the epitrochlear region, are possible. Intraoperative handheld gamma cameras have been used to detect SLNs which are located in different anatomical localizations. In this case we report the utility of an intraoperative handhe...

Article describes coded aperture gamma camera with single crystal scintillator CeBr3 detector coupled digital silicon photomultiplier. This kind of shows high detection efficiency, have good spatial resolution and allow acquiring energy spectrum. Camera’s structure characteristics are discussed, received images given.

Methods and Results—To assess to what extent and how rapidly inhaled pollutant particles pass into the systemic circulation, we measured, in 5 healthy volunteers, the distribution of radioactivity after the inhalation of “Technegas,” an aerosol consisting mainly of ultrafine 99mTechnetium-labeled carbon particles ( 100 nm). Radioactivity was detected in blood already at 1 minute, reached a maxi...

radionuclidic techniques may provide assessment of glomerular filtration rate (gfr) effective renal plasma flow (erpf) or individual renal function. several agents were available for determination of these parameters such as ¹³¹i-oih (o-iodohippurate) and different derivatives of dads (diamidodisulfur). oih has the disadvantage of imparting a relatively high absorbed radiation dose to the patie...

The performance of most—if not all—gamma cameras on the market is satisfactory for static imag ing at low count rates. CT scanning, however, will reduce the need for such static studies, with bone scintigraphy as one of the few possible exceptions. In the future the main load will lie on dynamic func tional studies. Many such procedures—in particu lar radiospirometry, radiocardiography an...

This is the third in a series of four continuing education articles related to the characteristics of the scintillation camera. Upon completion of this article, the reader should be able to: 1) understand the principles and the necessity of performance testing; 2) have the basic information to establish and conduct a routine testing program; and 3) effectively ensure the installation and perfor...

Based on BACODINE network notification the Whipple Observatory gamma-ray telescope has been used to search for the delayed TeV counterpart to BATSE-detected gamma-ray bursts. In the fast slew mode, any point in the sky can be reached within two minutes of the burst notification. The search strategy, necessary because of the uncertainty in burst position and limited FOV of the camera, is described.