[PDF][PDF] Field flood uniformity correction: benefits or pitfalls?

TN Padikal, AB Ashare… - Journal of Nuclear …, 1976 - Soc Nuclear Med
The use of field uniformity correction is growing rapidly, as data systems are becoming more
and more widespread (I). At first sight, uniformity correction appears to be a perfectly …

[PDF][PDF] Correction for field nonuniformity in scintillation cameras through removal of spatial distortion

G Muehllehner, JG Colsher… - journal of Nuclear Medicine, 1980 - Soc Nuclear Med
MUEHLLEHNER, COLSHER, AND STOUB if a circular area 20 mm in diameter
iscompressed by 0.4 mm toward its center from all directions (as might be the case over the …

The non-uniformity of imaging devices and its impact in quantitative studies

AE Todd-Pokropek, F Erbsmann… - Medical Radionuclide …, 1977 - inis.iaea.org
[en] The influence of non-uniformity has been examined in quantitative studies. The renal
uptake of 197 HgCl 2 was intercompared with a scanner and a gamma camera. Non …

[PDF][PDF] An automated method for the normalization of scintigraphic images

A Venot, JF Lebruchec, JL Golmard… - Journal of Nuclear …, 1983 - Soc Nuclear Med
METHOD We assume that the two images (reference and unnormalized images) either have
been acquired in similar geometrical conditions or have been first scaled to the same size …

Improvement of scintigrams by computer processing

SM Pizer, AE Todd-Pokropek - Seminars in nuclear medicine, 1978 - Elsevier
Computer processing can improve the quality of scintigrams in several ways. It can increase
the accuracy with which the image approximates the activity distribution by reversing …

[PDF][PDF] Image analysis by on-line minicomputer for improved camera quality control

JW Keyes, GR Gazella, DR Strange - Journal of Nuclear Medicine, 1972 - Soc Nuclear Med
METHODS Programming and computation was done on a Digital Equipment Corp. PDP-8/L
computer with 4K of core which was incorporated into a Nuclear Data Corp. 50/50 Med …

On-line corrections for factors that affect uniformity and linearity

GH Simmons - Journal of Nuclear Medicine Technology, 1988 - Soc Nuclear Med
This is the second in a series of four continuing education articles on scintillation camera
technology. After reading this article, the reader should be able to: 1) discuss the causes for …

[PDF][PDF] Quantitative effects of stationary linear image processing on noise and resolution of structure in radionuclide images

CE Metz, RN Beck - Journal of Nuclear Medicine, 1974 - Soc Nuclear Med
The data corresponding to any single digital radio nuclide image can be described by a two-
dimensional matrix of random variables b:@, each representing the observed density of …

[PDF][PDF] The line resolution pattern: A new intrinsic resolution test pattern for nuclear medicine

MK O'Connor, WM Oswald - Journal of Nuclear Medicine, 1988 - Soc Nuclear Med
METhODS Phantom Design and Evaluation The designconsiderationsfor the line resolution
phantom (LRP) were that it should (a) allow visual determination of intrinsic resolution to an …

[CITATION][C] Interpretation of the NEMA protocols for scintillation camera performance

E Busemann-Sokole, TD Cradduck - Journal of nuclear medicine, 1983 - Soc Nuclear Med
The National Electrical Manufacturers Association (NEMA) originally introduced standards
for the measurement and speci fication of scintillation-camera performance in 1980 (1, 2) …