Artifacts from misaligned CT in cardiac perfusion PET/CT studies: frequency, effects, and potential solutions
A Martinez-Möller, M Souvatzoglou… - Journal of Nuclear …, 2007 - Soc Nuclear Med
CT-based attenuation correction is a widely used option in commercial PET/CT scanners.
However, as a result of a nonsimultaneous acquisition and differences in temporal …
However, as a result of a nonsimultaneous acquisition and differences in temporal …
CT-based attenuation correction in 82Rb-myocardial perfusion PET–CT: incidence of misalignment and effect on regional tracer distribution
R Lautamäki, TLY Brown, J Merrill… - European journal of …, 2008 - Springer
Purpose Misalignment of low-dose-CT used for attenuation correction (AC) may cause
artifacts in cardiac-PET–CT. The aim was to evaluate incidence and severity of misalignment …
artifacts in cardiac-PET–CT. The aim was to evaluate incidence and severity of misalignment …
Comparison of Myocardial Perfusion 82Rb PET Performed with CT-and Transmission CT–Based Attenuation Correction
PJ Slomka, L Le Meunier, SW Hayes… - Journal of Nuclear …, 2008 - Soc Nuclear Med
CT-based attenuation correction (AC) for myocardial perfusion PET studies is challenging
because of respiratory motion. Our study aimed to compare the transmission CT (TCT) …
because of respiratory motion. Our study aimed to compare the transmission CT (TCT) …
Common artifacts in PET myocardial perfusion images due to attenuation–emission misregistration: clinical significance, causes, and solutions
C Loghin, S Sdringola, KL Gould - Journal of Nuclear Medicine, 2004 - Soc Nuclear Med
Misregistration between attenuation and emission images causes artifactual abnormalities
on cardiac PET images that result in false-positive defects. This study determines the …
on cardiac PET images that result in false-positive defects. This study determines the …
Frequent diagnostic errors in cardiac PET/CT due to misregistration of CT attenuation and emission PET images: a definitive analysis of causes, consequences, and …
KL Gould, T Pan, C Loghin, NP Johnson… - Journal of Nuclear …, 2007 - Soc Nuclear Med
Cardiac PET combined with CT is rapidly expanding despite artifactual defects and false-
positive results due to misregistration of PET and CT attenuation correction data—the …
positive results due to misregistration of PET and CT attenuation correction data—the …
Attenuation correction in cardiac PET/CT with three different CT protocols: a comparison with conventional PET
M Souvatzoglou, F Bengel, R Busch… - European journal of …, 2007 - Springer
Purpose CT-based attenuation correction may influence cardiac PET owing to its higher
susceptibility to misalignment compared with conventional 68 Ge transmission scans. The …
susceptibility to misalignment compared with conventional 68 Ge transmission scans. The …
Single-phase CT aligned to gated PET for respiratory motion correction in cardiac PET/CT
Respiratory motion can induce artifacts in cardiac PET/CT because of the misregistration of
the CT attenuation map and emission data. Some solutions to the respiratory motion …
the CT attenuation map and emission data. Some solutions to the respiratory motion …
Cine CT for attenuation correction in cardiac PET/CT
AM Alessio, S Kohlmyer, K Branch… - Journal of nuclear …, 2007 - Soc Nuclear Med
In dual-modality PET/CT systems, the CT scan provides the attenuation map for PET
attenuation correction. The current clinical practice of obtaining a single helical CT scan …
attenuation correction. The current clinical practice of obtaining a single helical CT scan …
Directions and magnitudes of misregistration of CT attenuation-corrected myocardial perfusion studies: incidence, impact on image quality, and guidance for …
JA Kennedy, O Israel, A Frenkel - Journal of Nuclear Medicine, 2009 - Soc Nuclear Med
CT-based attenuation-corrected (AC) myocardial perfusion imaging (MPI) studies may show
significant artifacts caused by misregistration between SPECT and CT data. The present …
significant artifacts caused by misregistration between SPECT and CT data. The present …
Assessment of attenuation correction for myocardial PET imaging using combined PET/MRI
Objective To evaluate the frequency of artifacts in MR-based attenuation correction (AC)
maps and their impact on the quantitative accuracy of PET-based flow and metabolism …
maps and their impact on the quantitative accuracy of PET-based flow and metabolism …