Six different human promoters (FLT-1, VEGF, Cox2, INOS, DR5 and survivin) were assessed for expression of mRNA in D54 MG cells 2 h after exposure to 2 Gy radiation using quantitative RT-PCR.
Extrapolation of adipose tissue volumes or pulmonary gas volumes has been applied by other investigators in order to limit radiation in quantitative CT studies in patients [ 16, 17].
If the intensity of the scattered radiation is measured, quantitative analysis is performed by preparing a working curve of intensity as a function of concentration of a series of standard solutions (i.e., solutions containing known concentrations of the component being analyzed).
Improved software for estimating regional radiation dosimetry from quantitative time-varying biodistribution data will support advances in radionuclide therapy.
Proper assessments of spacecraft shielding requirements and concomitant estimates of risk to spacecraft crews from energetic space radiation requires accurate, quantitative methods of characterizing the compositional changes in these radiation fields as they pass through thick absorbers.
Proper assessments of spacecraft shielding requirements and concomitant estimates of risk to critical body organs of spacecraft crews from energetic space radiation require accurate, quantitative methods of characterizing the compositional changes in these radiation fields as they pass through the spacecraft and overlying tissue.
Several studies have investigated stomach cancer risk with quantitative radiation dose estimates among patient populations also commonly exposed to chemotherapy.
Radiation parameters and quantitative image parameters (e.g. noise, attenuation) were tested using the Wilcoxon Mann-Whitney U test as the data were nonparametric.
Previous investigations of stomach cancer risk based on quantitative radiation dose estimates in the absence of chemotherapy are generally consistent with our results, although our study covered a substantially wider range of radiation doses.
The intensity of the emitted particles or electromagnetic radiation is used for quantitative analysis, and the energy of the emissions is used for qualitative analysis.
