Sentence examples for background compartment of the from inspiring English sources
The background compartment of the phantom was filled with non-radioactive water.
Fill the background compartment of the IQ phantom completely with water.
Activity measurements in the warm background compartment of the phantom were excellent, with the mean error consistently < 10%.
Create three rectangular regions of interest (ROIs), each of 900 mm2, in three axial planes within the phantom background compartment of the reconstructed images.
c Mean activity concentration of the 37 mm VOI within the warm background compartment of the phantom compared to the true activity concentration, averaged across the eight sites.
It is important to note that the background compartment of the phantom was intended to simulate the non-zero uptake of normal liver parenchyma, as is commonly seen in clinical studies [15, 16].
The entire delivery vial was added to a volume of 1,300 ml, and this solution was used to fill the phantom spheres, before the reminder of solution was added to the background compartment, with the addition of EDTA/DTPA to the contents to prevent the YCl3 sticking to the phantom walls.
The image quality parameters to be determined using this phantom are (i) recovery coefficients for the differently sized rods, indicative of spatial resolution, (ii) spillover of activity into the cold air and water compartments, expressing the scatter performance, and (iii) uniformity of measured activity in the background compartment that indicates the signal-to-noise ratio.
Before filling the phantom with activity, the volume of the background compartment was measured by its water weight.
A NEMA NU-2 image quality (IQ) phantom (PTW, Freiburg, Germany) was filled with [18F]FDG so that the background compartment and all six hot spheres had activity concentrations of 5.19 and 41.7 kBq/ml, respectively.
Record the start time of the PET acquisition T a and calculate the FDG activity concentrations in the spheres [S true] and the background compartment [B true] at T a.
