Objective: Reconstruction parameters must be optimized to approach the improved spatial
resolution that is theoretically possible from modern SPECT imaging devices. One important …

A method has been described to optimize the cutoff frequency of the Butterworth filter for
brain SPECT imaging. Since a computer simulation study has demonstrated that separation …

Introduction: Filtering can greatly affect the quality of clinical images. Determining the best
filter and the proper degree of smoothing can help to ensure the most accurate diagnosis …

Objective To improve the spatial resolution of brain single-photon emission computed
tomography (SPECT), we propose a new brain SPECT system in which the detector heads …

The potential use of single photon emission CT (SPECT) for quantification depends on its
physical performance characteristics. We investigated the performance of a high resolution …

Objective (s): The aim of this study was to evaluate the influences of reconstruction and
attenuation correction on the differences in the radioactivity distributions in 123 I brain …

Objective: Scatter correction is an important factor in quantitative SPECT. In this study, we
evaluated 2 methods of scatter correction for brain SPECT. The first is based on thresholding …

Objective The aim of this study was to determine the optimal reconstruction parameters on
ordered-subset expectation maximization iterative reconstruction with resolution recovery …

Since 1970, many research groups throughout the world have contributed to the
development of single photon emission computed tomography (SPECT) instrumentation and …

The choice of a collimator and the selection of a filter can affect the quality of clinical SPECT
images of the brain. The compromises that 4 different collimators make between spatial …