Sentence examples for radioactivity quantification from inspiring English sources

Lanes containing radioactive products were divided into one-cm fractions before radioactivity quantification.

Radioactivity quantification in regions of interest drawn on tumors and normal tissues can be performed on planar scintigraphy (2D) but organs superposition limits its capacity to precisely approach AD. 3D quantification performed on SPECT/CT images has been proposed with improved results when compared to 2D, e.g., [5, 6] (among others), but is not yet widely available.

As the 1.4-kb transcript represented approximately 10% of the total radioactivity, quantification was restricted to the 2.4-kb transcript.

Scanning and radioactivity quantification were achieved by a "Phosphoimaging Fujifilm Bas 5000" and the software "Image Gauge" (Fuji Film, http://www.fujifilm.com).

The scanner was calibrated on a quarterly basis with the experimental phantom filled with a known concentration of C to guarantee its performance reliability for radioactivity quantification.

Briefly, partial-volume averaging and spill-over effects affect radioactivity quantification with PET, mainly in the peripheral parts of the lungs.

Both the parent compound [I] 10 and its radio-metabolite were also detected in the brain, however, low radioactivity levels made quantification of their relative concentrations difficult.

Specific radioactivity was determined by quantification of the non-radioactive product (HPLC UV channel at 280 nm) and inclusion of the overall radiochemical yield (GBq at end of synthesis).

Here also multinuclide sources are ideally suited, as they allow for quantification of radioactivity amount of the various nuclides, provided that they are sufficiently long lived (medium half-life radionuclides might also be used, but errors are higher).

For accurate quantification of radioactivity, experimental samples were counted for 1 min on a calibrated Perkin Elmer (Waltham, MA, USA) 2480 Automatic Wizard Gamma Counter by using a dynamic energy window of 400 600 keV for gallium-68 (511 keV emission).

For the recording of an input function for kinetic modelling, protocols with arterio-venous shunts may be preferred as this allows the quantification of radioactivity in blood at a high temporal resolution without blood loss as the blood is guided back into the animal [35].