TY  - THES
N2  - PET image data is regularly reconstructed with iterative techniques, including the maximum likelihood-expectation maximization (MLEM) and the ordered-subset expectation maximization (OSEM) methods. GE Healthcare has introduced a new reconstruction technique known as Q. Clear with a penalization factor (?) in order to improve the image quality (IQ) parameters and qualification of PET data. This study compared the IQ impact of our facility's current clinical OSEM (C. OSEM) and the available Q. Clear reconstruction technique using a NEMA phantom. We investigated the optimum ? value and its effect on IQ parameters on our 3 and 5-ring PET/CT scanners that would maintain the current diagnostic level of IQ while possibly allowing for a decrease in scan time on the scanners.
DO  - 10.6083/gt54kn61s
DO  - DOI
AB  - PET image data is regularly reconstructed with iterative techniques, including the maximum likelihood-expectation maximization (MLEM) and the ordered-subset expectation maximization (OSEM) methods. GE Healthcare has introduced a new reconstruction technique known as Q. Clear with a penalization factor (?) in order to improve the image quality (IQ) parameters and qualification of PET data. This study compared the IQ impact of our facility's current clinical OSEM (C. OSEM) and the available Q. Clear reconstruction technique using a NEMA phantom. We investigated the optimum ? value and its effect on IQ parameters on our 3 and 5-ring PET/CT scanners that would maintain the current diagnostic level of IQ while possibly allowing for a decrease in scan time on the scanners.
T1  - Evaluation and optimization of injected activity and scan time on a 3 and 5-ring GE PET/CT while maintaining clinical image quality
DA  - 2021
AU  - Mojabi, Zahra S.
L1  - https://digitalcollections.ohsu.edu/record/9142/files/Mojabi.Zahra.2021.pdf
PB  - Oregon Health and Science University
PY  - 2021
ID  - 9142
L4  - https://digitalcollections.ohsu.edu/record/9142/files/Mojabi.Zahra.2021.pdf
KW  - Radionuclide Imaging
KW  - Diagnostic Imaging
KW  - pet scans
KW  - ct x ray
KW  - standards
TI  - Evaluation and optimization of injected activity and scan time on a 3 and 5-ring GE PET/CT while maintaining clinical image quality
Y1  - 2021
L2  - https://digitalcollections.ohsu.edu/record/9142/files/Mojabi.Zahra.2021.pdf
LK  - https://digitalcollections.ohsu.edu/record/9142/files/Mojabi.Zahra.2021.pdf
UR  - https://digitalcollections.ohsu.edu/record/9142/files/Mojabi.Zahra.2021.pdf
ER  -