The Examination of Attenuation Correction Using One Computed Tomography Scan in Myocardial Perfusion Stress-rest Single Photon Emission Computed Tomography

Attenuation correction in cardiac positron emission tomography and single-photon emission computed tomography.

Quantitation in cardiac positron emission tomography (PET) and single-photon emission computed tomography (SPECT) depends on being able to correct for several physical factors that tend to distort the data. One of the most important of these corrections is the correction for attenuation. For PET, cardiac attenuation correction is a reality, although certain problems remain to be solved. For SPE...

appropriateness of referrals for single-photon emission computed tomography myocardial perfusion imaging (spect-mpi) in iran

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Single Photon Emission Computed Tomography

LABORATORY INVESTIGATION SINGLE-PHOTON EMISSION TOMOGRAPHY Quantitation of size of relative myocardial perfusion defect by single-photon emission computed tomography

The purpose of this study was to validate a semiautomatic method for quantitating the size of relative myocardial perfusion defects from single-photon emission computed tomographic (SPECT) images. We compared the size of the image defect in vivo, expressed as percent of involved left ventricle, as determined by this method with the anatomic size of the defect in vitro in 19 dogs. To test the me...

Predictive value of multislice computed tomography variables of atherosclerosis for ischemia on stress-rest single-photon emission computed tomography.

BACKGROUND previous studies have shown that the presence of stenosis alone on multislice computed tomography (MSCT) has a limited positive predictive value for the presence of ischemia on myocardial perfusion imaging (MPI). The purpose of this study was to assess which variables of atherosclerosis on MSCT angiography are related to ischemia on MPI. METHODS AND RESULTS both MSCT and MPI were p...