In scintigraphy, the detection of scattered photons degrades both visual image analysis and
quantitative accuracy. Many methods have been proposed and are still under investigation …

The use of a gamma camera for single photon emission computed tomography (SPECT)
imaging places greater demand on camera performance than does planar imaging, since …

Objective Improving signal to noise ratio (SNR) and qualified images by the various methods
is very important for detecting the abnormalities at the body organs. Scatter and attenuation …

A method for the validation of Monte Carlo photon transport calculations is presented, with
particular emphasis on the scatter component of such calculations. The method is based on …

Nuclear medicine provides noninvasive imaging tools to detect a variety of human diseases.
The two major components of these imaging procedures are radiopharmaceuticals and an …

It has been shown that the presence of scatter can sig nificantly influence quantitative or
semiquantitative analy sis of tomographic studies (12, 13). Over the last 6 yr, the Nuclear …

Optimal image quality is an ideal in nuclear medicine that is not always realized, being
subject to a variety of conditions that can act, either singly or in combination, to undermine its …

Inherent non-uniformities in a gamma camera system are compensated for by reducing the
sensitivity for some locations on the detector. The tradeoff between image uniformity …

MATERIALS AND METhODS All studies were performed using the Humongotron, a single
photon emission computed tomography (ECT) system which has been previously described …

For more effective Tl-201 imaging, the location and width of the energy window set on the
Hg-201 x-rays photopeak was investigated using Monte Carlo simulation and phantom …