123I-Labeled radiotracers are suitable for in vivo imaging of the dopaminergic system by
SPECT. However, precise measurement of striatal uptake is limited by scatter, attenuation …

Background Quantitative accuracy in iodine 123 studies may be impaired by septal
penetration. We evaluated the effect of collimator choice on estimation of the heart …

Nonuniform attenuation correction in brain SPECT can be done routinely by means of
additional γ transmission CT (TCT) measurements, using different commercially available …

Although non-uniform attenuation correction (NUAC) can supply more accurate absolute
quantification, it is not entirely clear whether NUAC provides clear-cut benefits in the routine …

Background Septal penetration of high-energy photons may degrade the quality of single
photon emission computed tomography (SPECT) of the heart with iodine 123-labeled …

We propose the extended triple energy window (ETEW) method that improves quantitation
and contrast in SPECT images. ETEW is a modification of the triple energy window (TEW) …

Single-photon emission tomography (SPET) is a popular, commonly used method to image
the three-dimensional distribution of a radiopharmaceutical within the human body. In …

[1]. The authors report some interesting results concerning the effect of triple-energy window-
based scatter correction on brain perfusion SPET using statistical parametric mapping …

Simultaneous dual-isotope imaging has contributions from two different energy gamma rays,
such as Tc-99m (140KeV) and I-123 (159KeV). Dual-isotope Tc-99m/I-123 imaging has …

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 …