The quantitative and visual interpretation of SPECT myocardial perfusion images is limited
by physical factors such as photon attenuation, Compton scatter, and finite resolution effects …

J Nuci Med 30: 497— 507, 1989 hile single photon emission computed tomogra phy
(SPECT) imaging has become a routine clinical procedure in nuclear medicine, the problem …

Photon attenuation can reduce the diagnostic accuracy of cardiac SPECT imaging. Bellini et
al. have previously derived a mathematically exact method to compensate for attenuation in …

In recent years, there has been much interest in the clinical application of attenuation
compensation to myocardial perfusion single photon emission computed tomography …

Methods: Monte Carlo simulationsand real acquisitionof a" mTc cardiac phantom were
performed under comparable conditions. Simulated and acquired data were reconstructed …

Nonuniform attenuation, Compton scatter, and limited, spatially varying resolution degrade
both the qualitative and quantitative nature of myocardial perfusion SPECT. Physicians must …

The effects of changing myocardial wall thickness in single photon emission computed
tomography (SPECT) imaging are characterized, and a method which may be used to …

Background. Our goal was to evaluate the ability of current commercially available
attenuation compensation (AC) techniques to correct for the effects of attenuation, scatter …

A limitation of fan beam transmission imaging using a 40 cm field-of-view scintillation
camera is the data truncation that occurs when imaging medium to large-sized patients. With …

We have developed a new technique for compensating myocardial SPECT images for
partial volume errors using co-registered X-ray CT images. The CT-derived myocardial mass …