Journal: Medicine

Article Title: Clinical interest of quantitative bone SPECT-CT in the preoperative assessment of knee osteoarthritis

doi: 10.1097/MD.0000000000011943

Figure Lengend Snippet: Example of SPECT and SPECT-CT images obtained with OSEM-3D, OSCGM, and OSCGM-e reconstructions (coronal views).

Article Snippet: The reference ordered subset expectation maximization (OSEM) 3D iterative algorithm (FLASH3D, Siemens) (OSEM-3D), 8 iterations, and 15 subsets with a 128 × 128 matrix (pixel size 4.8 × 4.8 × 4.8 mm), and a 12 mm full width at half maximum (FWHM) Gaussian postfilter.

Techniques: Single Photon Emission Computed Tomography

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: SUVmax and TBR for each reconstruction algorithm

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques:

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: Representative examples of lesions with high and low TBR. This figure displays the axial FDG-PET images (jet color table) of a lesion with high TBR ( A ; TBR, 11.4; volume, 10.0 ml) and a lesion with low TBR ( B ; TBR, 3.6; volume, 7.9 ml) for all analyzed reconstruction algorithms. The windowing level was the same for all differently reconstructed data (but different between A and B). At high contrast (A), the SUVmax is mainly increased by PSF integration (+22% and +25%) and marginally affected by TOF (+0.2% and +2%). At low contrast (B), the opposite is true (PSF, +3% and +4%; TOF, +15% and +16%).

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques:

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: Relative SUVmax differences between reconstruction algorithms. Box plots of relative SUVmax differences in lesions with low TBR and high TBR. Comparison of PSF vs. non-PSF (upper row) as well as TOF vs. non-TOF algorithms (lower row). Outliers are marked as circles.

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques: Comparison

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: Relative SUVmax differences - TOF vs. non-TOF

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques:

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: Correlation between relative SUVmax differences and the TBR

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques:

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: Correlation of relative SUVmax differences with the TBR. Correlation plots of relative SUVmax differences and the lesions’ TBR between corresponding PSF and non-PSF algorithms (upper row) or TOF and non-TOF algorithms (lower row), respectively. The solid and dashed lines represent mean ± two standard deviations.

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques:

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: Interaction plots between the TBR and the lesion volume. Interaction plots of the lesions’ TBR and the lesion volume on relative SUVmax differences between corresponding PSF and non-PSF algorithms (upper row) or TOF and non-TOF algorithms (lower row), respectively. The TBR and the lesion volume were binarized by their respective median value. In general, an increased effect of the TBR on SUVmax differences is observed in smaller lesions. This interaction between TBR and lesion volume is indicated by non-parallel courses of corresponding gray and black dashed lines.

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques:

Journal: EJNMMI Research

Article Title: The association of tumor-to-background ratios and SUVmax deviations related to point spread function and time-of-flight F18-FDG-PET/CT reconstruction in colorectal liver metastases

doi: 10.1186/s13550-015-0111-5

Figure Lengend Snippet: Relative SUVmax differences - PSF vs. non-PSF

Article Snippet: FDG-PET raw data were reconstructed with four algorithms and respective presets provided by the manufacturer: 3D-ordered subset expectation maximization (3D-OSEM; iterations, 2; subsets, 24), 3D-OSEM + time-of-flight analysis (3D-OSEM + TOF; iterations, 2; subsets, 21), iterative reconstruction with system-specific PSF modeling (PSF; Siemens TrueX®, ‘HD∙PET’; iterations, 2; subsets, 24), and PSF + TOF (Siemens ‘ultraHD∙PET’; iterations, 2; subsets, 21) [ ].

Techniques: