Results 241 to 250 of about 1,357,413 (328)
Some of the next articles are maybe not open access.
Nuclear Instruments and Methods in Physics Research, 1984
The development of the Anger gamma camera is traced from its inception to the present day. In addition to discussing earlier forms of analogue pulse arithmetic used to construct the image, examples of more recent microprocessor-based techniques which improve performance and correct for inherent inhomogeneities are described.
openaire +1 more source
The development of the Anger gamma camera is traced from its inception to the present day. In addition to discussing earlier forms of analogue pulse arithmetic used to construct the image, examples of more recent microprocessor-based techniques which improve performance and correct for inherent inhomogeneities are described.
openaire +1 more source
Nuclear Medicine Communications, 1984
Performance data on seven currently available gamma cameras have been presented. Where appropriate, results from both the DHSS and NEMA are included. It should be emphasized that no 'best buy' exists for all types of nuclear medicine application and that the performance figures presented in this paper must be interpreted in the light of clinical ...
openaire +2 more sources
Performance data on seven currently available gamma cameras have been presented. Where appropriate, results from both the DHSS and NEMA are included. It should be emphasized that no 'best buy' exists for all types of nuclear medicine application and that the performance figures presented in this paper must be interpreted in the light of clinical ...
openaire +2 more sources
PET imaging using gamma cameras
Computerized Medical Imaging and Graphics, 2001This paper will review the recent advances and future developments in the field of coincidence imaging of positron emitters with a conventional Anger-type gamma camera. FDG imaging has shown high clinical importance in cardiology, neurology and especially oncology. Since access to full ring PET is mainly limited to university hospitals, there have been
Y, D'Asseler +7 more
openaire +2 more sources
2010
La scintigrafia e una tecnica della medicina nucleare che permette la misura in vivo della concentrazione locale di radiofarmaci che emettono raggi γ singoli. Si tratta dunque di una tecnica di imaging “in emissione”. Infatti, al contrario delle cosiddette tecniche “in trasmissione”, come la radiografia a raggi X o la TC, dove i fotoni vengono emessi ...
DEL GUERRA, ALBERTO, BELCARI, NICOLA
openaire +2 more sources
La scintigrafia e una tecnica della medicina nucleare che permette la misura in vivo della concentrazione locale di radiofarmaci che emettono raggi γ singoli. Si tratta dunque di una tecnica di imaging “in emissione”. Infatti, al contrario delle cosiddette tecniche “in trasmissione”, come la radiografia a raggi X o la TC, dove i fotoni vengono emessi ...
DEL GUERRA, ALBERTO, BELCARI, NICOLA
openaire +2 more sources
2011
Crystals and collimators 32Photomultiplier tubes and electronics 34Gamma camera performance parameters and quality control (1) 36Gamma camera performance parameters and quality control (2) 38Nuclear cardiology imaging is performed on an Anger gamma camera. Its key component is a large flat circular or rectangular sodium iodide crystal, activated by non-
Nikant Sabharwal +2 more
openaire +1 more source
Crystals and collimators 32Photomultiplier tubes and electronics 34Gamma camera performance parameters and quality control (1) 36Gamma camera performance parameters and quality control (2) 38Nuclear cardiology imaging is performed on an Anger gamma camera. Its key component is a large flat circular or rectangular sodium iodide crystal, activated by non-
Nikant Sabharwal +2 more
openaire +1 more source
Gamma camera imaging in malignancy
European Journal of Cancer, 2002The aim of this article is to describe the current applications of gamma camera imaging in oncology with some references to potential uses currently under investigation. Initially, the basic principles and techniques will be described, followed by a general discussion of routine and novel radiopharmaceuticals.
J W, Evans, A M, Peters
openaire +2 more sources
Gamma Camera Breast Imaging Lexicon
American Journal of Roentgenology, 2012The standardized terminology and reporting structure of the BI-RADS for mammography, ultrasound, and MRI findings facilitates patient management. To date, no such terminology has been available for gamma camera breast imaging. We present an illustrated lexicon including description of background uptake, mass and nonmass uptake, lesion intensity ...
Amy Lynn, Conners +6 more
openaire +2 more sources
CZT gamma camera for scintimammography
Physica Medica, 2006A high performance prototype gamma camera based on the semiconductor radiation detector Cd(Zn)Te is described. The camera features high spatial resolution, high-energy resolution, a reduced dead space on the edge of the field of view, and a compact format.
Ira M, Blevis +5 more
openaire +2 more sources
Reproducibility of gamma camera data
Physics in Medicine & Biology, 1981The increasing use of quantification in the interpretation of nuclear medicine images requires a knowledge of the errors associated with the estimation of the activity in a volume of interest from the recorded count rate data. Using sources of known cross-sectional area from 1 to 25 cm2, errors caused by variations in the count rate, day of measurement,
W R, Pitt, P F, Sharp
openaire +2 more sources
2017
Nuclear cardiology imaging is traditionally performed on an Anger gamma camera. Its key component is a large, flat, circular or rectangular sodium iodide crystal, activated by non-radioactive thallium (NaI(Tl)). The side of the crystal facing the patient is covered with a lead collimator, while the side away from the patient is viewed by an array of ...
Nikant Sabharwal +2 more
openaire +1 more source
Nuclear cardiology imaging is traditionally performed on an Anger gamma camera. Its key component is a large, flat, circular or rectangular sodium iodide crystal, activated by non-radioactive thallium (NaI(Tl)). The side of the crystal facing the patient is covered with a lead collimator, while the side away from the patient is viewed by an array of ...
Nikant Sabharwal +2 more
openaire +1 more source