With the use of standard correction methods, the error was largely removed.
The new GPU-accelerated MCS allows for fast and accurate estimation of scattered coincidences in PET studies using the Siemens MR-BrainPET with a major speed-up compared to standard MCS and superior image quality compared with the standard correction based on SSS.
Although the use of deuterated internal standards facilitates the accurate quantification of penicillin residues in animal tissues and milk, the results for animal feed initially were less satisfactory, even with internal standard correction.
In this method, the emission sinogram is preliminarily corrected with the standard corrections, then convolved with the kernel, and the tails of the convolved sinogram and the measured sinogram are fitted to obtain a scaling factor for the convolution kernel.
For studies in which the constructed 2×2 tables contained cells with zero events, a standard correction factor of 0.5 was added to each cell.
All raw intensity data were first blank subtracted using mean gas blank values, followed by internal standard correction in accordance with the procedure described in the previous section.
Importantly, the pressure increase in the lateral compartment following standard correction valgus HTO (with 4.5° tibial valgus) did not lead to mid-term morphological alterations in the lateral tibiofemoral compartment.
The Discussion section compares the proposed methods with standard bootstrap correction procedures and explains the rationale of our study.
Blank subtraction was applied after internal standard correction.
Torso (head/neck to pelvis) PET scans, typically comprising 6 to 7 bed positions, were acquired in two-dimensional (2D) mode with attenuation, scatter, and other standard corrections applied to yield quantitative (Bq/ml) PET images.
The study integrated TCP-friendly rate control standards with standard forward error correction.
