A methodis proposedto simultaneouslyrecordsinglephotonemission… transmission
tomographic (SPECT) studiesto producea mapof attenuationcoefficients (@@) for the body …

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 …

A technique is described for using computed tomography (CT) images for attenuation
correction and quantification in SPECT. The CT images are aligned with the corresponding …

Photon attenuation in cardiac single photon emission computed tomography (SPECT) is a
major factor contributing to the quantitative inaccuracy and the decrease in specificity of …

A quantitative study of nonisotropic attenuation in SPECT imaging is presented. The study
includes a case where the spatial distribution of the attenuation coefficient is nonuniform, as …

The method for simultaneously acquiringemission and trans missioncoincidencedata is an
extensionofthe sinogramwindow-@ 6 ing technique (15— 17) which has been used to …

Using nuclear medicine techniques, physiologic activity and processes can be identified in a
way that is unique from other modalities. Oftentimes it is helpful to know the exact location of …

Attenuation correction in single-photon (SPET) and positron emission (PET) tomography is
now accepted as a vital component for the production of artefact-free, quantitative data. The …

Simultaneous correction of nonuniform attenuation and detector response was implemented
in single-photon-emission computed tomography (SPECT) image reconstruction. A ray …

A major problem here is the selection of the †correct'value for the effective attenuation
coefficient ze@. In addition, for regions in the human body with large variations in …